diff --git a/Chapter 15/busy-waiter-service/.gitignore b/Chapter 15/busy-waiter-service/.gitignore
new file mode 100644
index 0000000..ba5cb5c
--- /dev/null
+++ b/Chapter 15/busy-waiter-service/.gitignore
@@ -0,0 +1,26 @@
+HELP.md
+/target/
+!.mvn/wrapper/maven-wrapper.jar
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+/build/
diff --git a/Chapter 15/busy-waiter-service/pom.xml b/Chapter 15/busy-waiter-service/pom.xml
new file mode 100644
index 0000000..e759dca
--- /dev/null
+++ b/Chapter 15/busy-waiter-service/pom.xml
@@ -0,0 +1,125 @@
+
+
+ 4.0.0
+
+ org.springframework.boot
+ spring-boot-starter-parent
+ 2.1.4.RELEASE
+
+
+ geektime.spring.springbucks
+ waiter-service
+ 0.0.1-SNAPSHOT
+ waiter-service
+ Demo project for Spring Boot
+
+
+ 1.8
+ Greenwich.SR1
+
+
+
+
+ org.springframework.boot
+ spring-boot-starter-cache
+
+
+ org.springframework.boot
+ spring-boot-starter-data-jpa
+
+
+ org.springframework.boot
+ spring-boot-starter-web
+
+
+ org.springframework.boot
+ spring-boot-starter-actuator
+
+
+
+ org.springframework.cloud
+ spring-cloud-starter-consul-discovery
+
+
+ org.springframework.cloud
+ spring-cloud-starter-consul-config
+
+
+
+ org.springframework.cloud
+ spring-cloud-starter-stream-rabbit
+
+
+
+ io.github.resilience4j
+ resilience4j-spring-boot2
+ 0.14.1
+
+
+
+ io.micrometer
+ micrometer-registry-prometheus
+
+
+
+ org.joda
+ joda-money
+ 1.0.1
+
+
+ org.jadira.usertype
+ usertype.core
+ 6.0.1.GA
+
+
+
+ com.fasterxml.jackson.datatype
+ jackson-datatype-hibernate5
+ 2.9.8
+
+
+
+ org.apache.commons
+ commons-lang3
+
+
+
+ mysql
+ mysql-connector-java
+ runtime
+
+
+ org.projectlombok
+ lombok
+ true
+
+
+ org.springframework.boot
+ spring-boot-starter-test
+ test
+
+
+
+
+
+
+ org.springframework.cloud
+ spring-cloud-dependencies
+ ${spring-cloud.version}
+ pom
+ import
+
+
+
+
+
+
+
+ org.springframework.boot
+ spring-boot-maven-plugin
+
+
+
+
+
diff --git a/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/WaiterServiceApplication.java b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/WaiterServiceApplication.java
new file mode 100644
index 0000000..5c6e6a6
--- /dev/null
+++ b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/WaiterServiceApplication.java
@@ -0,0 +1,49 @@
+package geektime.spring.springbucks.waiter;
+
+import com.fasterxml.jackson.datatype.hibernate5.Hibernate5Module;
+import geektime.spring.springbucks.waiter.controller.PerformanceInteceptor;
+import geektime.spring.springbucks.waiter.integration.Barista;
+import geektime.spring.springbucks.waiter.integration.Customer;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.autoconfigure.jackson.Jackson2ObjectMapperBuilderCustomizer;
+import org.springframework.cache.annotation.EnableCaching;
+import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
+import org.springframework.cloud.stream.annotation.EnableBinding;
+import org.springframework.context.annotation.Bean;
+import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
+import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
+
+import java.util.TimeZone;
+
+@SpringBootApplication
+@EnableJpaRepositories
+@EnableCaching
+@EnableDiscoveryClient
+@EnableBinding({ Barista.class, Customer.class })
+public class WaiterServiceApplication implements WebMvcConfigurer {
+
+ public static void main(String[] args) {
+ SpringApplication.run(WaiterServiceApplication.class, args);
+ }
+
+ @Override
+ public void addInterceptors(InterceptorRegistry registry) {
+ registry.addInterceptor(new PerformanceInteceptor())
+ .addPathPatterns("/coffee/**").addPathPatterns("/order/**");
+ }
+
+ @Bean
+ public Hibernate5Module hibernate5Module() {
+ return new Hibernate5Module();
+ }
+
+ @Bean
+ public Jackson2ObjectMapperBuilderCustomizer jacksonBuilderCustomizer() {
+ return builder -> {
+ builder.indentOutput(true);
+ builder.timeZone(TimeZone.getTimeZone("Asia/Shanghai"));
+ };
+ }
+}
diff --git a/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/CoffeeController.java b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/CoffeeController.java
new file mode 100644
index 0000000..783ab1e
--- /dev/null
+++ b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/CoffeeController.java
@@ -0,0 +1,96 @@
+package geektime.spring.springbucks.waiter.controller;
+
+import geektime.spring.springbucks.waiter.controller.request.NewCoffeeRequest;
+import geektime.spring.springbucks.waiter.model.Coffee;
+import geektime.spring.springbucks.waiter.service.CoffeeService;
+import io.github.resilience4j.ratelimiter.annotation.RateLimiter;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.commons.lang3.StringUtils;
+import org.apache.commons.lang3.math.NumberUtils;
+import org.apache.tomcat.util.http.fileupload.IOUtils;
+import org.joda.money.CurrencyUnit;
+import org.joda.money.Money;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.MediaType;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.ResponseStatus;
+import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.multipart.MultipartFile;
+
+import javax.validation.Valid;
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
+import java.util.List;
+
+@RestController
+@RequestMapping("/coffee")
+@RateLimiter(name = "coffee")
+@Slf4j
+public class CoffeeController {
+ @Autowired
+ private CoffeeService coffeeService;
+
+ @PostMapping(path = "/", consumes = MediaType.APPLICATION_FORM_URLENCODED_VALUE)
+ @ResponseStatus(HttpStatus.CREATED)
+ public Coffee addCoffeeWithoutBindingResult(@Valid NewCoffeeRequest newCoffee) {
+ return coffeeService.saveCoffee(newCoffee.getName(), newCoffee.getPrice());
+ }
+
+ @PostMapping(path = "/", consumes = MediaType.APPLICATION_JSON_UTF8_VALUE)
+ @ResponseStatus(HttpStatus.CREATED)
+ public Coffee addJsonCoffeeWithoutBindingResult(@Valid @RequestBody NewCoffeeRequest newCoffee) {
+ return coffeeService.saveCoffee(newCoffee.getName(), newCoffee.getPrice());
+ }
+
+ @PostMapping(path = "/", consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
+ @ResponseStatus(HttpStatus.CREATED)
+ public List batchAddCoffee(@RequestParam("file") MultipartFile file) {
+ List coffees = new ArrayList<>();
+ if (!file.isEmpty()) {
+ BufferedReader reader = null;
+ try {
+ reader = new BufferedReader(
+ new InputStreamReader(file.getInputStream()));
+ String str;
+ while ((str = reader.readLine()) != null) {
+ String[] arr = StringUtils.split(str, " ");
+ if (arr != null && arr.length == 2) {
+ coffees.add(coffeeService.saveCoffee(arr[0],
+ Money.of(CurrencyUnit.of("CNY"),
+ NumberUtils.createBigDecimal(arr[1]))));
+ }
+ }
+ } catch (IOException e) {
+ log.error("exception", e);
+ } finally {
+ IOUtils.closeQuietly(reader);
+ }
+ }
+ return coffees;
+ }
+
+ @GetMapping(path = "/", params = "!name")
+ public List getAll() {
+ return coffeeService.getAllCoffee();
+ }
+
+ @GetMapping("/{id}")
+ public Coffee getById(@PathVariable Long id) {
+ Coffee coffee = coffeeService.getCoffee(id);
+ log.info("Coffee {}:", coffee);
+ return coffee;
+ }
+
+ @GetMapping(path = "/", params = "name")
+ public Coffee getByName(@RequestParam String name) {
+ return coffeeService.getCoffee(name);
+ }
+}
diff --git a/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/CoffeeOrderController.java b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/CoffeeOrderController.java
new file mode 100644
index 0000000..98ef819
--- /dev/null
+++ b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/CoffeeOrderController.java
@@ -0,0 +1,70 @@
+package geektime.spring.springbucks.waiter.controller;
+
+import geektime.spring.springbucks.waiter.controller.request.NewOrderRequest;
+import geektime.spring.springbucks.waiter.controller.request.OrderStateRequest;
+import geektime.spring.springbucks.waiter.model.Coffee;
+import geektime.spring.springbucks.waiter.model.CoffeeOrder;
+import geektime.spring.springbucks.waiter.service.CoffeeOrderService;
+import geektime.spring.springbucks.waiter.service.CoffeeService;
+import io.github.resilience4j.ratelimiter.RateLimiter;
+import io.github.resilience4j.ratelimiter.RateLimiterRegistry;
+import io.github.resilience4j.ratelimiter.RequestNotPermitted;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.MediaType;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.PutMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.ResponseStatus;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/order")
+@Slf4j
+public class CoffeeOrderController {
+ @Autowired
+ private CoffeeOrderService orderService;
+ @Autowired
+ private CoffeeService coffeeService;
+ private RateLimiter rateLimiter;
+
+ public CoffeeOrderController(RateLimiterRegistry rateLimiterRegistry) {
+ rateLimiter = rateLimiterRegistry.rateLimiter("order");
+ }
+
+ @GetMapping("/{id}")
+ public CoffeeOrder getOrder(@PathVariable("id") Long id) {
+ CoffeeOrder order = null;
+ try {
+ order = rateLimiter.executeSupplier(() -> orderService.get(id));
+ log.info("Get Order: {}", order);
+ } catch(RequestNotPermitted e) {
+ log.warn("Request Not Permitted! {}", e.getMessage());
+ }
+ return order;
+ }
+
+ @PostMapping(path = "/", consumes = MediaType.APPLICATION_JSON_VALUE,
+ produces = MediaType.APPLICATION_JSON_UTF8_VALUE)
+ @ResponseStatus(HttpStatus.CREATED)
+ @io.github.resilience4j.ratelimiter.annotation.RateLimiter(name = "order")
+ public CoffeeOrder create(@RequestBody NewOrderRequest newOrder) {
+ log.info("Receive new Order {}", newOrder);
+ Coffee[] coffeeList = coffeeService.getCoffeeByName(newOrder.getItems())
+ .toArray(new Coffee[] {});
+ return orderService.createOrder(newOrder.getCustomer(), coffeeList);
+ }
+
+ @PutMapping("/{id}")
+ public CoffeeOrder updateState(@PathVariable("id") Long id,
+ @RequestBody OrderStateRequest orderState) {
+ log.info("Update order {} with state {}", id, orderState);
+ CoffeeOrder order = orderService.get(id);
+ orderService.updateState(order, orderState.getState());
+ return order;
+ }
+}
diff --git a/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/PerformanceInteceptor.java b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/PerformanceInteceptor.java
new file mode 100644
index 0000000..9ab2e4d
--- /dev/null
+++ b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/PerformanceInteceptor.java
@@ -0,0 +1,46 @@
+package geektime.spring.springbucks.waiter.controller;
+
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.util.StopWatch;
+import org.springframework.web.method.HandlerMethod;
+import org.springframework.web.servlet.HandlerInterceptor;
+import org.springframework.web.servlet.ModelAndView;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+@Slf4j
+public class PerformanceInteceptor implements HandlerInterceptor {
+ private ThreadLocal stopWatch = new ThreadLocal<>();
+
+ @Override
+ public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
+ StopWatch sw = new StopWatch();
+ stopWatch.set(sw);
+ sw.start();
+ return true;
+ }
+
+ @Override
+ public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
+ stopWatch.get().stop();
+ stopWatch.get().start();
+ }
+
+ @Override
+ public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
+ StopWatch sw = stopWatch.get();
+ sw.stop();
+ String method = handler.getClass().getSimpleName();
+ if (handler instanceof HandlerMethod) {
+ String beanType = ((HandlerMethod) handler).getBeanType().getName();
+ String methodName = ((HandlerMethod) handler).getMethod().getName();
+ method = beanType + "." + methodName;
+ }
+ log.info("{};{};{};{};{}ms;{}ms;{}ms", request.getRequestURI(), method,
+ response.getStatus(), ex == null ? "-" : ex.getClass().getSimpleName(),
+ sw.getTotalTimeMillis(), sw.getTotalTimeMillis() - sw.getLastTaskTimeMillis(),
+ sw.getLastTaskTimeMillis());
+ stopWatch.remove();
+ }
+}
diff --git a/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/request/NewCoffeeRequest.java b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/request/NewCoffeeRequest.java
new file mode 100644
index 0000000..5d98011
--- /dev/null
+++ b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/request/NewCoffeeRequest.java
@@ -0,0 +1,19 @@
+package geektime.spring.springbucks.waiter.controller.request;
+
+import lombok.Getter;
+import lombok.Setter;
+import lombok.ToString;
+import org.joda.money.Money;
+
+import javax.validation.constraints.NotEmpty;
+import javax.validation.constraints.NotNull;
+
+@Getter
+@Setter
+@ToString
+public class NewCoffeeRequest {
+ @NotEmpty
+ private String name;
+ @NotNull
+ private Money price;
+}
diff --git a/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/request/NewOrderRequest.java b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/request/NewOrderRequest.java
new file mode 100644
index 0000000..53674ca
--- /dev/null
+++ b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/request/NewOrderRequest.java
@@ -0,0 +1,15 @@
+package geektime.spring.springbucks.waiter.controller.request;
+
+import lombok.Getter;
+import lombok.Setter;
+import lombok.ToString;
+
+import java.util.List;
+
+@Getter
+@Setter
+@ToString
+public class NewOrderRequest {
+ private String customer;
+ private List items;
+}
diff --git a/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/request/OrderStateRequest.java b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/request/OrderStateRequest.java
new file mode 100644
index 0000000..44e149f
--- /dev/null
+++ b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/request/OrderStateRequest.java
@@ -0,0 +1,13 @@
+package geektime.spring.springbucks.waiter.controller.request;
+
+import geektime.spring.springbucks.waiter.model.OrderState;
+import lombok.Getter;
+import lombok.Setter;
+import lombok.ToString;
+
+@Getter
+@Setter
+@ToString
+public class OrderStateRequest {
+ private OrderState state;
+}
diff --git a/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/integration/Barista.java b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/integration/Barista.java
new file mode 100644
index 0000000..deca3e7
--- /dev/null
+++ b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/integration/Barista.java
@@ -0,0 +1,17 @@
+package geektime.spring.springbucks.waiter.integration;
+
+import org.springframework.cloud.stream.annotation.Input;
+import org.springframework.cloud.stream.annotation.Output;
+import org.springframework.messaging.MessageChannel;
+import org.springframework.messaging.SubscribableChannel;
+
+public interface Barista {
+ String NEW_ORDERS = "newOrders";
+ String FINISHED_ORDERS = "finishedOrders";
+
+ @Input
+ SubscribableChannel finishedOrders();
+
+ @Output
+ MessageChannel newOrders();
+}
diff --git a/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/integration/Customer.java b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/integration/Customer.java
new file mode 100644
index 0000000..1122f29
--- /dev/null
+++ b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/integration/Customer.java
@@ -0,0 +1,11 @@
+package geektime.spring.springbucks.waiter.integration;
+
+import org.springframework.cloud.stream.annotation.Output;
+import org.springframework.messaging.MessageChannel;
+
+public interface Customer {
+ String NOTIFY_ORDERS = "notifyOrders";
+
+ @Output(NOTIFY_ORDERS)
+ MessageChannel notification();
+}
diff --git a/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/integration/OrderListener.java b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/integration/OrderListener.java
new file mode 100644
index 0000000..8824a7a
--- /dev/null
+++ b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/integration/OrderListener.java
@@ -0,0 +1,30 @@
+package geektime.spring.springbucks.waiter.integration;
+
+import geektime.spring.springbucks.waiter.model.CoffeeOrder;
+import geektime.spring.springbucks.waiter.service.CoffeeOrderService;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.cloud.stream.annotation.StreamListener;
+import org.springframework.messaging.Message;
+import org.springframework.messaging.support.MessageBuilder;
+import org.springframework.stereotype.Component;
+
+@Component
+@Slf4j
+public class OrderListener {
+ @Autowired
+ private Customer customer;
+ @Autowired
+ private CoffeeOrderService orderService;
+
+ @StreamListener(Barista.FINISHED_ORDERS)
+ public void listenFinishedOrders(Long id) {
+ log.info("We've finished an order [{}].", id);
+ CoffeeOrder order = orderService.get(id);
+ Message message = MessageBuilder.withPayload(id)
+ .setHeader("customer", order.getCustomer())
+ .build();
+ log.info("Notify the customer: {}", order.getCustomer());
+ customer.notification().send(message);
+ }
+}
diff --git a/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/model/BaseEntity.java b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/model/BaseEntity.java
new file mode 100644
index 0000000..95cd49c
--- /dev/null
+++ b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/model/BaseEntity.java
@@ -0,0 +1,32 @@
+package geektime.spring.springbucks.waiter.model;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+import org.hibernate.annotations.CreationTimestamp;
+import org.hibernate.annotations.UpdateTimestamp;
+
+import javax.persistence.Column;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.MappedSuperclass;
+import java.io.Serializable;
+import java.util.Date;
+
+@MappedSuperclass
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+// 增加了jackson-datatype-hibernate5就不需要这个Ignore了
+//@JsonIgnoreProperties(value = {"hibernateLazyInitializer"})
+public class BaseEntity implements Serializable {
+ @Id
+ @GeneratedValue(strategy = GenerationType.IDENTITY)
+ private Long id;
+ @Column(updatable = false)
+ @CreationTimestamp
+ private Date createTime;
+ @UpdateTimestamp
+ private Date updateTime;
+}
diff --git a/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/model/Coffee.java b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/model/Coffee.java
new file mode 100644
index 0000000..1dc122b
--- /dev/null
+++ b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/model/Coffee.java
@@ -0,0 +1,29 @@
+package geektime.spring.springbucks.waiter.model;
+
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import lombok.NoArgsConstructor;
+import lombok.ToString;
+import org.hibernate.annotations.Type;
+import org.joda.money.Money;
+
+import javax.persistence.Entity;
+import javax.persistence.Table;
+import java.io.Serializable;
+
+@Entity
+@Table(name = "T_COFFEE")
+@Builder
+@Data
+@EqualsAndHashCode(callSuper = true)
+@ToString(callSuper = true)
+@NoArgsConstructor
+@AllArgsConstructor
+public class Coffee extends BaseEntity implements Serializable {
+ private String name;
+ @Type(type = "org.jadira.usertype.moneyandcurrency.joda.PersistentMoneyMinorAmount",
+ parameters = {@org.hibernate.annotations.Parameter(name = "currencyCode", value = "CNY")})
+ private Money price;
+}
diff --git a/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/model/CoffeeOrder.java b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/model/CoffeeOrder.java
new file mode 100644
index 0000000..11022df
--- /dev/null
+++ b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/model/CoffeeOrder.java
@@ -0,0 +1,45 @@
+package geektime.spring.springbucks.waiter.model;
+
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import lombok.NoArgsConstructor;
+import lombok.ToString;
+import org.hibernate.annotations.Type;
+import org.joda.money.Money;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.Enumerated;
+import javax.persistence.JoinTable;
+import javax.persistence.ManyToMany;
+import javax.persistence.OrderBy;
+import javax.persistence.Table;
+import java.io.Serializable;
+import java.util.List;
+
+@Entity
+@Table(name = "T_ORDER")
+@Data
+@EqualsAndHashCode(callSuper = true)
+@ToString(callSuper = true)
+@NoArgsConstructor
+@AllArgsConstructor
+@Builder
+public class CoffeeOrder extends BaseEntity implements Serializable {
+ private String customer;
+ @ManyToMany
+ @JoinTable(name = "T_ORDER_COFFEE")
+ @OrderBy("id")
+ private List items;
+ @Enumerated
+ @Column(nullable = false)
+ private OrderState state;
+ private Integer discount;
+ @Type(type = "org.jadira.usertype.moneyandcurrency.joda.PersistentMoneyMinorAmount",
+ parameters = {@org.hibernate.annotations.Parameter(name = "currencyCode", value = "CNY")})
+ private Money total;
+ private String waiter;
+ private String barista;
+}
diff --git a/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/model/OrderState.java b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/model/OrderState.java
new file mode 100644
index 0000000..cbc6383
--- /dev/null
+++ b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/model/OrderState.java
@@ -0,0 +1,5 @@
+package geektime.spring.springbucks.waiter.model;
+
+public enum OrderState {
+ INIT, PAID, BREWING, BREWED, TAKEN, CANCELLED
+}
diff --git a/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/repository/CoffeeOrderRepository.java b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/repository/CoffeeOrderRepository.java
new file mode 100644
index 0000000..20b3cf1
--- /dev/null
+++ b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/repository/CoffeeOrderRepository.java
@@ -0,0 +1,7 @@
+package geektime.spring.springbucks.waiter.repository;
+
+import geektime.spring.springbucks.waiter.model.CoffeeOrder;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface CoffeeOrderRepository extends JpaRepository {
+}
diff --git a/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/repository/CoffeeRepository.java b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/repository/CoffeeRepository.java
new file mode 100644
index 0000000..6f60a2e
--- /dev/null
+++ b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/repository/CoffeeRepository.java
@@ -0,0 +1,11 @@
+package geektime.spring.springbucks.waiter.repository;
+
+import geektime.spring.springbucks.waiter.model.Coffee;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+import java.util.List;
+
+public interface CoffeeRepository extends JpaRepository {
+ List findByNameInOrderById(List list);
+ Coffee findByName(String name);
+}
diff --git a/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/service/CoffeeOrderService.java b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/service/CoffeeOrderService.java
new file mode 100644
index 0000000..fa4a847
--- /dev/null
+++ b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/service/CoffeeOrderService.java
@@ -0,0 +1,92 @@
+package geektime.spring.springbucks.waiter.service;
+
+import geektime.spring.springbucks.waiter.integration.Barista;
+import geektime.spring.springbucks.waiter.model.Coffee;
+import geektime.spring.springbucks.waiter.model.CoffeeOrder;
+import geektime.spring.springbucks.waiter.model.OrderState;
+import geektime.spring.springbucks.waiter.repository.CoffeeOrderRepository;
+import geektime.spring.springbucks.waiter.support.OrderProperties;
+import io.micrometer.core.instrument.Counter;
+import io.micrometer.core.instrument.MeterRegistry;
+import io.micrometer.core.instrument.binder.MeterBinder;
+import lombok.extern.slf4j.Slf4j;
+import org.joda.money.Money;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.messaging.support.MessageBuilder;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.math.RoundingMode;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.UUID;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+@Service
+@Transactional
+@Slf4j
+public class CoffeeOrderService implements MeterBinder {
+ @Autowired
+ private CoffeeOrderRepository orderRepository;
+ @Autowired
+ private OrderProperties orderProperties;
+ @Autowired
+ private Barista barista;
+
+ private String waiterId = UUID.randomUUID().toString();
+
+ private Counter orderCounter = null;
+
+ public CoffeeOrder get(Long id) {
+ return orderRepository.getOne(id);
+ }
+
+ public CoffeeOrder createOrder(String customer, Coffee...coffee) {
+ CoffeeOrder order = CoffeeOrder.builder()
+ .customer(customer)
+ .items(new ArrayList<>(Arrays.asList(coffee)))
+ .discount(orderProperties.getDiscount())
+ .total(calcTotal(coffee))
+ .state(OrderState.INIT)
+ .waiter(orderProperties.getWaiterPrefix() + waiterId)
+ .build();
+ CoffeeOrder saved = orderRepository.save(order);
+ log.info("New Order: {}", saved);
+ orderCounter.increment();
+ return saved;
+ }
+
+ public boolean updateState(CoffeeOrder order, OrderState state) {
+ if (order == null) {
+ log.warn("Can not find order.");
+ return false;
+ }
+ if (state.compareTo(order.getState()) <= 0) {
+ log.warn("Wrong State order: {}, {}", state, order.getState());
+ return false;
+ }
+ order.setState(state);
+ orderRepository.save(order);
+ log.info("Updated Order: {}", order);
+ if (state == OrderState.PAID) {
+ // 有返回值，如果要关注发送结果，则判断返回值
+ // 一般消息体不会这么简单
+ barista.newOrders().send(MessageBuilder.withPayload(order.getId()).build());
+ }
+ return true;
+ }
+
+ @Override
+ public void bindTo(MeterRegistry meterRegistry) {
+ this.orderCounter = meterRegistry.counter("order.count");
+ }
+
+ private Money calcTotal(Coffee...coffee) {
+ List items = Stream.of(coffee).map(c -> c.getPrice())
+ .collect(Collectors.toList());
+ return Money.total(items).multipliedBy(orderProperties.getDiscount())
+ .dividedBy(100, RoundingMode.HALF_UP);
+ }
+}
diff --git a/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/service/CoffeeService.java b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/service/CoffeeService.java
new file mode 100644
index 0000000..7f567cb
--- /dev/null
+++ b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/service/CoffeeService.java
@@ -0,0 +1,51 @@
+package geektime.spring.springbucks.waiter.service;
+
+import geektime.spring.springbucks.waiter.model.Coffee;
+import geektime.spring.springbucks.waiter.repository.CoffeeRepository;
+import lombok.extern.slf4j.Slf4j;
+import org.joda.money.Money;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.cache.annotation.CacheConfig;
+import org.springframework.cache.annotation.Cacheable;
+import org.springframework.data.domain.Example;
+import org.springframework.data.domain.Sort;
+import org.springframework.stereotype.Service;
+
+import java.util.Arrays;
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+
+@Service
+@Slf4j
+@CacheConfig(cacheNames = "CoffeeCache")
+public class CoffeeService {
+ @Autowired
+ private CoffeeRepository coffeeRepository;
+
+ public Coffee saveCoffee(String name, Money price) {
+ return coffeeRepository.save(Coffee.builder().name(name).price(price).build());
+ }
+
+ @Cacheable
+ public List getAllCoffee() {
+ return coffeeRepository.findAll(Sort.by("id"));
+ }
+
+ public Coffee getCoffee(Long id) {
+// return coffeeRepository.findById(id).get();
+ return coffeeRepository.getOne(id);
+ }
+
+ public long getCoffeeCount() {
+ return coffeeRepository.count();
+ }
+
+ public Coffee getCoffee(String name) {
+ return coffeeRepository.findByName(name);
+ }
+
+ public List getCoffeeByName(List names) {
+ return coffeeRepository.findByNameInOrderById(names);
+ }
+}
diff --git a/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/support/CoffeeIndicator.java b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/support/CoffeeIndicator.java
new file mode 100644
index 0000000..ee2e69b
--- /dev/null
+++ b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/support/CoffeeIndicator.java
@@ -0,0 +1,31 @@
+package geektime.spring.springbucks.waiter.support;
+
+import geektime.spring.springbucks.waiter.service.CoffeeService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.actuate.health.Health;
+import org.springframework.boot.actuate.health.HealthIndicator;
+import org.springframework.stereotype.Component;
+
+@Component
+public class CoffeeIndicator implements HealthIndicator {
+ @Autowired
+ private CoffeeService coffeeService;
+
+ @Override
+ public Health health() {
+ long count = coffeeService.getCoffeeCount();
+ Health health;
+ if (count > 0) {
+ health = Health.up()
+ .withDetail("count", count)
+ .withDetail("message", "We have enough coffee.")
+ .build();
+ } else {
+ health = Health.down()
+ .withDetail("count", 0)
+ .withDetail("message", "We are out of coffee.")
+ .build();
+ }
+ return health;
+ }
+}
diff --git a/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/support/MoneyDeserializer.java b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/support/MoneyDeserializer.java
new file mode 100644
index 0000000..30a9ebc
--- /dev/null
+++ b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/support/MoneyDeserializer.java
@@ -0,0 +1,23 @@
+package geektime.spring.springbucks.waiter.support;
+
+import com.fasterxml.jackson.core.JsonParser;
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.DeserializationContext;
+import com.fasterxml.jackson.databind.deser.std.StdDeserializer;
+import org.joda.money.CurrencyUnit;
+import org.joda.money.Money;
+import org.springframework.boot.jackson.JsonComponent;
+
+import java.io.IOException;
+
+@JsonComponent
+public class MoneyDeserializer extends StdDeserializer {
+ protected MoneyDeserializer() {
+ super(Money.class);
+ }
+
+ @Override
+ public Money deserialize(JsonParser p, DeserializationContext ctxt) throws IOException, JsonProcessingException {
+ return Money.of(CurrencyUnit.of("CNY"), p.getDecimalValue());
+ }
+}
diff --git a/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/support/MoneyFormatter.java b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/support/MoneyFormatter.java
new file mode 100644
index 0000000..1d0c712
--- /dev/null
+++ b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/support/MoneyFormatter.java
@@ -0,0 +1,42 @@
+package geektime.spring.springbucks.waiter.support;
+
+import org.apache.commons.lang3.StringUtils;
+import org.apache.commons.lang3.math.NumberUtils;
+import org.joda.money.CurrencyUnit;
+import org.joda.money.Money;
+import org.springframework.format.Formatter;
+import org.springframework.stereotype.Component;
+
+import java.text.ParseException;
+import java.util.Locale;
+
+@Component
+public class MoneyFormatter implements Formatter {
+ /**
+ * 处理 CNY 10.00 / 10.00 形式的字符串
+ * 校验不太严密，仅作演示
+ */
+ @Override
+ public Money parse(String text, Locale locale) throws ParseException {
+ if (NumberUtils.isParsable(text)) {
+ return Money.of(CurrencyUnit.of("CNY"), NumberUtils.createBigDecimal(text));
+ } else if (StringUtils.isNotEmpty(text)) {
+ String[] split = StringUtils.split(text, " ");
+ if (split != null && split.length == 2 && NumberUtils.isParsable(split[1])) {
+ return Money.of(CurrencyUnit.of(split[0]),
+ NumberUtils.createBigDecimal(split[1]));
+ } else {
+ throw new ParseException(text, 0);
+ }
+ }
+ throw new ParseException(text, 0);
+ }
+
+ @Override
+ public String print(Money money, Locale locale) {
+ if (money == null) {
+ return null;
+ }
+ return money.getCurrencyUnit().getCode() + " " + money.getAmount();
+ }
+}
diff --git a/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/support/MoneySerializer.java b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/support/MoneySerializer.java
new file mode 100644
index 0000000..463666d
--- /dev/null
+++ b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/support/MoneySerializer.java
@@ -0,0 +1,21 @@
+package geektime.spring.springbucks.waiter.support;
+
+import com.fasterxml.jackson.core.JsonGenerator;
+import com.fasterxml.jackson.databind.SerializerProvider;
+import com.fasterxml.jackson.databind.ser.std.StdSerializer;
+import org.joda.money.Money;
+import org.springframework.boot.jackson.JsonComponent;
+
+import java.io.IOException;
+
+@JsonComponent
+public class MoneySerializer extends StdSerializer {
+ protected MoneySerializer() {
+ super(Money.class);
+ }
+
+ @Override
+ public void serialize(Money money, JsonGenerator jsonGenerator, SerializerProvider serializerProvider) throws IOException {
+ jsonGenerator.writeNumber(money.getAmount());
+ }
+}
diff --git a/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/support/OrderProperties.java b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/support/OrderProperties.java
new file mode 100644
index 0000000..c840c3f
--- /dev/null
+++ b/Chapter 15/busy-waiter-service/src/main/java/geektime/spring/springbucks/waiter/support/OrderProperties.java
@@ -0,0 +1,15 @@
+package geektime.spring.springbucks.waiter.support;
+
+import lombok.Data;
+import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.cloud.context.config.annotation.RefreshScope;
+import org.springframework.stereotype.Component;
+
+@ConfigurationProperties("order")
+@RefreshScope
+@Data
+@Component
+public class OrderProperties {
+ private Integer discount = 100;
+ private String waiterPrefix = "springbucks-";
+}
diff --git a/Chapter 15/busy-waiter-service/src/main/resources/application.properties b/Chapter 15/busy-waiter-service/src/main/resources/application.properties
new file mode 100644
index 0000000..b9323e2
--- /dev/null
+++ b/Chapter 15/busy-waiter-service/src/main/resources/application.properties
@@ -0,0 +1,44 @@
+spring.jpa.hibernate.ddl-auto=none
+spring.jpa.properties.hibernate.show_sql=false
+spring.jpa.properties.hibernate.format_sql=false
+# 用来解决 LazyInitializationException: no Session
+spring.jpa.properties.hibernate.enable_lazy_load_no_trans=true
+
+# 运行过一次后，如果不想清空数据库就注释掉下面这行
+spring.datasource.initialization-mode=always
+
+management.endpoints.web.exposure.include=*
+management.endpoint.health.show-details=always
+
+info.app.author=DigitalSonic
+info.app.encoding=@project.build.sourceEncoding@
+
+spring.output.ansi.enabled=ALWAYS
+
+server.port=0
+
+spring.datasource.url=jdbc:mysql://localhost/springbucks
+spring.datasource.username=springbucks
+spring.datasource.password=springbucks
+
+order.discount=95
+
+resilience4j.ratelimiter.limiters.coffee.limit-for-period=5
+resilience4j.ratelimiter.limiters.coffee.limit-refresh-period-in-millis=30000
+resilience4j.ratelimiter.limiters.coffee.timeout-in-millis=5000
+resilience4j.ratelimiter.limiters.coffee.subscribe-for-events=true
+resilience4j.ratelimiter.limiters.coffee.register-health-indicator=true
+
+resilience4j.ratelimiter.limiters.order.limit-for-period=3
+resilience4j.ratelimiter.limiters.order.limit-refresh-period-in-millis=30000
+resilience4j.ratelimiter.limiters.order.timeout-in-millis=1000
+resilience4j.ratelimiter.limiters.order.subscribe-for-events=true
+resilience4j.ratelimiter.limiters.order.register-health-indicator=true
+
+spring.rabbitmq.host=localhost
+spring.rabbitmq.port=5672
+spring.rabbitmq.username=spring
+spring.rabbitmq.password=spring
+
+spring.cloud.stream.bindings.finishedOrders.group=waiter-service
+spring.cloud.stream.rabbit.bindings.notifyOrders.producer.routing-key-expression=headers.customer
diff --git a/Chapter 15/busy-waiter-service/src/main/resources/bootstrap.properties b/Chapter 15/busy-waiter-service/src/main/resources/bootstrap.properties
new file mode 100644
index 0000000..5536bb1
--- /dev/null
+++ b/Chapter 15/busy-waiter-service/src/main/resources/bootstrap.properties
@@ -0,0 +1,8 @@
+spring.application.name=waiter-service
+
+spring.cloud.consul.host=localhost
+spring.cloud.consul.port=8500
+spring.cloud.consul.discovery.prefer-ip-address=true
+
+spring.cloud.consul.config.enabled=true
+spring.cloud.consul.config.format=yaml
\ No newline at end of file
diff --git a/Chapter 15/busy-waiter-service/src/main/resources/coffee.txt b/Chapter 15/busy-waiter-service/src/main/resources/coffee.txt
new file mode 100644
index 0000000..00f81c3
--- /dev/null
+++ b/Chapter 15/busy-waiter-service/src/main/resources/coffee.txt
@@ -0,0 +1,2 @@
+Americano 25.0
+Italian 30.0
\ No newline at end of file
diff --git a/Chapter 15/busy-waiter-service/src/main/resources/data.sql b/Chapter 15/busy-waiter-service/src/main/resources/data.sql
new file mode 100644
index 0000000..929682f
--- /dev/null
+++ b/Chapter 15/busy-waiter-service/src/main/resources/data.sql
@@ -0,0 +1,5 @@
+insert into t_coffee (name, price, create_time, update_time) values ('espresso', 2000, now(), now());
+insert into t_coffee (name, price, create_time, update_time) values ('latte', 2500, now(), now());
+insert into t_coffee (name, price, create_time, update_time) values ('capuccino', 2500, now(), now());
+insert into t_coffee (name, price, create_time, update_time) values ('mocha', 3000, now(), now());
+insert into t_coffee (name, price, create_time, update_time) values ('macchiato', 3000, now(), now());
diff --git a/Chapter 15/busy-waiter-service/src/main/resources/schema.sql b/Chapter 15/busy-waiter-service/src/main/resources/schema.sql
new file mode 100644
index 0000000..31e937b
--- /dev/null
+++ b/Chapter 15/busy-waiter-service/src/main/resources/schema.sql
@@ -0,0 +1,33 @@
+# 注意 MySQL 与 H2 的语法差异
+# H2: drop table tbl if exists;
+# MySQL: drop table if exists tbl;
+drop table if exists t_coffee;
+drop table if exists t_order;
+drop table if exists t_order_coffee;
+
+create table t_coffee (
+ id bigint auto_increment,
+ create_time timestamp,
+ update_time timestamp,
+ name varchar(255),
+ price bigint,
+ primary key (id)
+);
+
+create table t_order (
+ id bigint auto_increment,
+ create_time timestamp,
+ update_time timestamp,
+ customer varchar(255),
+ waiter varchar(255),
+ barista varchar(255),
+ discount integer,
+ total bigint,
+ state integer,
+ primary key (id)
+);
+
+create table t_order_coffee (
+ coffee_order_id bigint not null,
+ items_id bigint not null
+);
diff --git a/Chapter 15/busy-waiter-service/src/test/java/geektime/spring/springbucks/waiter/WaiterServiceApplicationTests.java b/Chapter 15/busy-waiter-service/src/test/java/geektime/spring/springbucks/waiter/WaiterServiceApplicationTests.java
new file mode 100644
index 0000000..209b785
--- /dev/null
+++ b/Chapter 15/busy-waiter-service/src/test/java/geektime/spring/springbucks/waiter/WaiterServiceApplicationTests.java
@@ -0,0 +1,16 @@
+package geektime.spring.springbucks.waiter;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest
+public class WaiterServiceApplicationTests {
+
+ @Test
+ public void contextLoads() {
+ }
+
+}
diff --git a/Chapter 15/kafka-barista-service/.gitignore b/Chapter 15/kafka-barista-service/.gitignore
new file mode 100644
index 0000000..153c933
--- /dev/null
+++ b/Chapter 15/kafka-barista-service/.gitignore
@@ -0,0 +1,29 @@
+HELP.md
+/target/
+!.mvn/wrapper/maven-wrapper.jar
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+/build/
+
+### VS Code ###
+.vscode/
diff --git a/Chapter 15/kafka-barista-service/mvnw b/Chapter 15/kafka-barista-service/mvnw
new file mode 100755
index 0000000..8b9da3b
--- /dev/null
+++ b/Chapter 15/kafka-barista-service/mvnw
@@ -0,0 +1,286 @@
+#!/bin/sh
+# ----------------------------------------------------------------------------
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements. See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership. The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License. You may obtain a copy of the License at
+#
+# https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied. See the License for the
+# specific language governing permissions and limitations
+# under the License.
+# ----------------------------------------------------------------------------
+
+# ----------------------------------------------------------------------------
+# Maven2 Start Up Batch script
+#
+# Required ENV vars:
+# ------------------
+# JAVA_HOME - location of a JDK home dir
+#
+# Optional ENV vars
+# -----------------
+# M2_HOME - location of maven2's installed home dir
+# MAVEN_OPTS - parameters passed to the Java VM when running Maven
+# e.g. to debug Maven itself, use
+# set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
+# MAVEN_SKIP_RC - flag to disable loading of mavenrc files
+# ----------------------------------------------------------------------------
+
+if [ -z "$MAVEN_SKIP_RC" ] ; then
+
+ if [ -f /etc/mavenrc ] ; then
+ . /etc/mavenrc
+ fi
+
+ if [ -f "$HOME/.mavenrc" ] ; then
+ . "$HOME/.mavenrc"
+ fi
+
+fi
+
+# OS specific support. $var _must_ be set to either true or false.
+cygwin=false;
+darwin=false;
+mingw=false
+case "`uname`" in
+ CYGWIN*) cygwin=true ;;
+ MINGW*) mingw=true;;
+ Darwin*) darwin=true
+ # Use /usr/libexec/java_home if available, otherwise fall back to /Library/Java/Home
+ # See https://developer.apple.com/library/mac/qa/qa1170/_index.html
+ if [ -z "$JAVA_HOME" ]; then
+ if [ -x "/usr/libexec/java_home" ]; then
+ export JAVA_HOME="`/usr/libexec/java_home`"
+ else
+ export JAVA_HOME="/Library/Java/Home"
+ fi
+ fi
+ ;;
+esac
+
+if [ -z "$JAVA_HOME" ] ; then
+ if [ -r /etc/gentoo-release ] ; then
+ JAVA_HOME=`java-config --jre-home`
+ fi
+fi
+
+if [ -z "$M2_HOME" ] ; then
+ ## resolve links - $0 may be a link to maven's home
+ PRG="$0"
+
+ # need this for relative symlinks
+ while [ -h "$PRG" ] ; do
+ ls=`ls -ld "$PRG"`
+ link=`expr "$ls" : '.*-> \(.*\)$'`
+ if expr "$link" : '/.*' > /dev/null; then
+ PRG="$link"
+ else
+ PRG="`dirname "$PRG"`/$link"
+ fi
+ done
+
+ saveddir=`pwd`
+
+ M2_HOME=`dirname "$PRG"`/..
+
+ # make it fully qualified
+ M2_HOME=`cd "$M2_HOME" && pwd`
+
+ cd "$saveddir"
+ # echo Using m2 at $M2_HOME
+fi
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched
+if $cygwin ; then
+ [ -n "$M2_HOME" ] &&
+ M2_HOME=`cygpath --unix "$M2_HOME"`
+ [ -n "$JAVA_HOME" ] &&
+ JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+ [ -n "$CLASSPATH" ] &&
+ CLASSPATH=`cygpath --path --unix "$CLASSPATH"`
+fi
+
+# For Mingw, ensure paths are in UNIX format before anything is touched
+if $mingw ; then
+ [ -n "$M2_HOME" ] &&
+ M2_HOME="`(cd "$M2_HOME"; pwd)`"
+ [ -n "$JAVA_HOME" ] &&
+ JAVA_HOME="`(cd "$JAVA_HOME"; pwd)`"
+ # TODO classpath?
+fi
+
+if [ -z "$JAVA_HOME" ]; then
+ javaExecutable="`which javac`"
+ if [ -n "$javaExecutable" ] && ! [ "`expr \"$javaExecutable\" : '\([^ ]*\)'`" = "no" ]; then
+ # readlink(1) is not available as standard on Solaris 10.
+ readLink=`which readlink`
+ if [ ! `expr "$readLink" : '\([^ ]*\)'` = "no" ]; then
+ if $darwin ; then
+ javaHome="`dirname \"$javaExecutable\"`"
+ javaExecutable="`cd \"$javaHome\" && pwd -P`/javac"
+ else
+ javaExecutable="`readlink -f \"$javaExecutable\"`"
+ fi
+ javaHome="`dirname \"$javaExecutable\"`"
+ javaHome=`expr "$javaHome" : '\(.*\)/bin'`
+ JAVA_HOME="$javaHome"
+ export JAVA_HOME
+ fi
+ fi
+fi
+
+if [ -z "$JAVACMD" ] ; then
+ if [ -n "$JAVA_HOME" ] ; then
+ if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+ # IBM's JDK on AIX uses strange locations for the executables
+ JAVACMD="$JAVA_HOME/jre/sh/java"
+ else
+ JAVACMD="$JAVA_HOME/bin/java"
+ fi
+ else
+ JAVACMD="`which java`"
+ fi
+fi
+
+if [ ! -x "$JAVACMD" ] ; then
+ echo "Error: JAVA_HOME is not defined correctly." >&2
+ echo " We cannot execute $JAVACMD" >&2
+ exit 1
+fi
+
+if [ -z "$JAVA_HOME" ] ; then
+ echo "Warning: JAVA_HOME environment variable is not set."
+fi
+
+CLASSWORLDS_LAUNCHER=org.codehaus.plexus.classworlds.launcher.Launcher
+
+# traverses directory structure from process work directory to filesystem root
+# first directory with .mvn subdirectory is considered project base directory
+find_maven_basedir() {
+
+ if [ -z "$1" ]
+ then
+ echo "Path not specified to find_maven_basedir"
+ return 1
+ fi
+
+ basedir="$1"
+ wdir="$1"
+ while [ "$wdir" != '/' ] ; do
+ if [ -d "$wdir"/.mvn ] ; then
+ basedir=$wdir
+ break
+ fi
+ # workaround for JBEAP-8937 (on Solaris 10/Sparc)
+ if [ -d "${wdir}" ]; then
+ wdir=`cd "$wdir/.."; pwd`
+ fi
+ # end of workaround
+ done
+ echo "${basedir}"
+}
+
+# concatenates all lines of a file
+concat_lines() {
+ if [ -f "$1" ]; then
+ echo "$(tr -s '\n' ' ' < "$1")"
+ fi
+}
+
+BASE_DIR=`find_maven_basedir "$(pwd)"`
+if [ -z "$BASE_DIR" ]; then
+ exit 1;
+fi
+
+##########################################################################################
+# Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
+# This allows using the maven wrapper in projects that prohibit checking in binary data.
+##########################################################################################
+if [ -r "$BASE_DIR/.mvn/wrapper/maven-wrapper.jar" ]; then
+ if [ "$MVNW_VERBOSE" = true ]; then
+ echo "Found .mvn/wrapper/maven-wrapper.jar"
+ fi
+else
+ if [ "$MVNW_VERBOSE" = true ]; then
+ echo "Couldn't find .mvn/wrapper/maven-wrapper.jar, downloading it ..."
+ fi
+ jarUrl="https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.4.2/maven-wrapper-0.4.2.jar"
+ while IFS="=" read key value; do
+ case "$key" in (wrapperUrl) jarUrl="$value"; break ;;
+ esac
+ done < "$BASE_DIR/.mvn/wrapper/maven-wrapper.properties"
+ if [ "$MVNW_VERBOSE" = true ]; then
+ echo "Downloading from: $jarUrl"
+ fi
+ wrapperJarPath="$BASE_DIR/.mvn/wrapper/maven-wrapper.jar"
+
+ if command -v wget > /dev/null; then
+ if [ "$MVNW_VERBOSE" = true ]; then
+ echo "Found wget ... using wget"
+ fi
+ wget "$jarUrl" -O "$wrapperJarPath"
+ elif command -v curl > /dev/null; then
+ if [ "$MVNW_VERBOSE" = true ]; then
+ echo "Found curl ... using curl"
+ fi
+ curl -o "$wrapperJarPath" "$jarUrl"
+ else
+ if [ "$MVNW_VERBOSE" = true ]; then
+ echo "Falling back to using Java to download"
+ fi
+ javaClass="$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.java"
+ if [ -e "$javaClass" ]; then
+ if [ ! -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
+ if [ "$MVNW_VERBOSE" = true ]; then
+ echo " - Compiling MavenWrapperDownloader.java ..."
+ fi
+ # Compiling the Java class
+ ("$JAVA_HOME/bin/javac" "$javaClass")
+ fi
+ if [ -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
+ # Running the downloader
+ if [ "$MVNW_VERBOSE" = true ]; then
+ echo " - Running MavenWrapperDownloader.java ..."
+ fi
+ ("$JAVA_HOME/bin/java" -cp .mvn/wrapper MavenWrapperDownloader "$MAVEN_PROJECTBASEDIR")
+ fi
+ fi
+ fi
+fi
+##########################################################################################
+# End of extension
+##########################################################################################
+
+export MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-"$BASE_DIR"}
+if [ "$MVNW_VERBOSE" = true ]; then
+ echo $MAVEN_PROJECTBASEDIR
+fi
+MAVEN_OPTS="$(concat_lines "$MAVEN_PROJECTBASEDIR/.mvn/jvm.config") $MAVEN_OPTS"
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin; then
+ [ -n "$M2_HOME" ] &&
+ M2_HOME=`cygpath --path --windows "$M2_HOME"`
+ [ -n "$JAVA_HOME" ] &&
+ JAVA_HOME=`cygpath --path --windows "$JAVA_HOME"`
+ [ -n "$CLASSPATH" ] &&
+ CLASSPATH=`cygpath --path --windows "$CLASSPATH"`
+ [ -n "$MAVEN_PROJECTBASEDIR" ] &&
+ MAVEN_PROJECTBASEDIR=`cygpath --path --windows "$MAVEN_PROJECTBASEDIR"`
+fi
+
+WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
+
+exec "$JAVACMD" \
+ $MAVEN_OPTS \
+ -classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \
+ "-Dmaven.home=${M2_HOME}" "-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \
+ ${WRAPPER_LAUNCHER} $MAVEN_CONFIG "$@"
diff --git a/Chapter 15/kafka-barista-service/mvnw.cmd b/Chapter 15/kafka-barista-service/mvnw.cmd
new file mode 100644
index 0000000..fef5a8f
--- /dev/null
+++ b/Chapter 15/kafka-barista-service/mvnw.cmd
@@ -0,0 +1,161 @@
+@REM ----------------------------------------------------------------------------
+@REM Licensed to the Apache Software Foundation (ASF) under one
+@REM or more contributor license agreements. See the NOTICE file
+@REM distributed with this work for additional information
+@REM regarding copyright ownership. The ASF licenses this file
+@REM to you under the Apache License, Version 2.0 (the
+@REM "License"); you may not use this file except in compliance
+@REM with the License. You may obtain a copy of the License at
+@REM
+@REM https://www.apache.org/licenses/LICENSE-2.0
+@REM
+@REM Unless required by applicable law or agreed to in writing,
+@REM software distributed under the License is distributed on an
+@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+@REM KIND, either express or implied. See the License for the
+@REM specific language governing permissions and limitations
+@REM under the License.
+@REM ----------------------------------------------------------------------------
+
+@REM ----------------------------------------------------------------------------
+@REM Maven2 Start Up Batch script
+@REM
+@REM Required ENV vars:
+@REM JAVA_HOME - location of a JDK home dir
+@REM
+@REM Optional ENV vars
+@REM M2_HOME - location of maven2's installed home dir
+@REM MAVEN_BATCH_ECHO - set to 'on' to enable the echoing of the batch commands
+@REM MAVEN_BATCH_PAUSE - set to 'on' to wait for a key stroke before ending
+@REM MAVEN_OPTS - parameters passed to the Java VM when running Maven
+@REM e.g. to debug Maven itself, use
+@REM set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
+@REM MAVEN_SKIP_RC - flag to disable loading of mavenrc files
+@REM ----------------------------------------------------------------------------
+
+@REM Begin all REM lines with '@' in case MAVEN_BATCH_ECHO is 'on'
+@echo off
+@REM set title of command window
+title %0
+@REM enable echoing my setting MAVEN_BATCH_ECHO to 'on'
+@if "%MAVEN_BATCH_ECHO%" == "on" echo %MAVEN_BATCH_ECHO%
+
+@REM set %HOME% to equivalent of $HOME
+if "%HOME%" == "" (set "HOME=%HOMEDRIVE%%HOMEPATH%")
+
+@REM Execute a user defined script before this one
+if not "%MAVEN_SKIP_RC%" == "" goto skipRcPre
+@REM check for pre script, once with legacy .bat ending and once with .cmd ending
+if exist "%HOME%\mavenrc_pre.bat" call "%HOME%\mavenrc_pre.bat"
+if exist "%HOME%\mavenrc_pre.cmd" call "%HOME%\mavenrc_pre.cmd"
+:skipRcPre
+
+@setlocal
+
+set ERROR_CODE=0
+
+@REM To isolate internal variables from possible post scripts, we use another setlocal
+@setlocal
+
+@REM ==== START VALIDATION ====
+if not "%JAVA_HOME%" == "" goto OkJHome
+
+echo.
+echo Error: JAVA_HOME not found in your environment. >&2
+echo Please set the JAVA_HOME variable in your environment to match the >&2
+echo location of your Java installation. >&2
+echo.
+goto error
+
+:OkJHome
+if exist "%JAVA_HOME%\bin\java.exe" goto init
+
+echo.
+echo Error: JAVA_HOME is set to an invalid directory. >&2
+echo JAVA_HOME = "%JAVA_HOME%" >&2
+echo Please set the JAVA_HOME variable in your environment to match the >&2
+echo location of your Java installation. >&2
+echo.
+goto error
+
+@REM ==== END VALIDATION ====
+
+:init
+
+@REM Find the project base dir, i.e. the directory that contains the folder ".mvn".
+@REM Fallback to current working directory if not found.
+
+set MAVEN_PROJECTBASEDIR=%MAVEN_BASEDIR%
+IF NOT "%MAVEN_PROJECTBASEDIR%"=="" goto endDetectBaseDir
+
+set EXEC_DIR=%CD%
+set WDIR=%EXEC_DIR%
+:findBaseDir
+IF EXIST "%WDIR%"\.mvn goto baseDirFound
+cd ..
+IF "%WDIR%"=="%CD%" goto baseDirNotFound
+set WDIR=%CD%
+goto findBaseDir
+
+:baseDirFound
+set MAVEN_PROJECTBASEDIR=%WDIR%
+cd "%EXEC_DIR%"
+goto endDetectBaseDir
+
+:baseDirNotFound
+set MAVEN_PROJECTBASEDIR=%EXEC_DIR%
+cd "%EXEC_DIR%"
+
+:endDetectBaseDir
+
+IF NOT EXIST "%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config" goto endReadAdditionalConfig
+
+@setlocal EnableExtensions EnableDelayedExpansion
+for /F "usebackq delims=" %%a in ("%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config") do set JVM_CONFIG_MAVEN_PROPS=!JVM_CONFIG_MAVEN_PROPS! %%a
+@endlocal & set JVM_CONFIG_MAVEN_PROPS=%JVM_CONFIG_MAVEN_PROPS%
+
+:endReadAdditionalConfig
+
+SET MAVEN_JAVA_EXE="%JAVA_HOME%\bin\java.exe"
+set WRAPPER_JAR="%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.jar"
+set WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
+
+set DOWNLOAD_URL="https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.4.2/maven-wrapper-0.4.2.jar"
+FOR /F "tokens=1,2 delims==" %%A IN (%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.properties) DO (
+ IF "%%A"=="wrapperUrl" SET DOWNLOAD_URL=%%B
+)
+
+@REM Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
+@REM This allows using the maven wrapper in projects that prohibit checking in binary data.
+if exist %WRAPPER_JAR% (
+ echo Found %WRAPPER_JAR%
+) else (
+ echo Couldn't find %WRAPPER_JAR%, downloading it ...
+ echo Downloading from: %DOWNLOAD_URL%
+ powershell -Command "(New-Object Net.WebClient).DownloadFile('%DOWNLOAD_URL%', '%WRAPPER_JAR%')"
+ echo Finished downloading %WRAPPER_JAR%
+)
+@REM End of extension
+
+%MAVEN_JAVA_EXE% %JVM_CONFIG_MAVEN_PROPS% %MAVEN_OPTS% %MAVEN_DEBUG_OPTS% -classpath %WRAPPER_JAR% "-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" %WRAPPER_LAUNCHER% %MAVEN_CONFIG% %*
+if ERRORLEVEL 1 goto error
+goto end
+
+:error
+set ERROR_CODE=1
+
+:end
+@endlocal & set ERROR_CODE=%ERROR_CODE%
+
+if not "%MAVEN_SKIP_RC%" == "" goto skipRcPost
+@REM check for post script, once with legacy .bat ending and once with .cmd ending
+if exist "%HOME%\mavenrc_post.bat" call "%HOME%\mavenrc_post.bat"
+if exist "%HOME%\mavenrc_post.cmd" call "%HOME%\mavenrc_post.cmd"
+:skipRcPost
+
+@REM pause the script if MAVEN_BATCH_PAUSE is set to 'on'
+if "%MAVEN_BATCH_PAUSE%" == "on" pause
+
+if "%MAVEN_TERMINATE_CMD%" == "on" exit %ERROR_CODE%
+
+exit /B %ERROR_CODE%
diff --git a/Chapter 15/kafka-barista-service/pom.xml b/Chapter 15/kafka-barista-service/pom.xml
new file mode 100644
index 0000000..2c52b1b
--- /dev/null
+++ b/Chapter 15/kafka-barista-service/pom.xml
@@ -0,0 +1,83 @@
+
+
+ 4.0.0
+
+ org.springframework.boot
+ spring-boot-starter-parent
+ 2.1.4.RELEASE
+
+
+ geektime.spring.springbucks
+ barista-service
+ 0.0.1-SNAPSHOT
+ barista-service
+ Demo project for Spring Boot
+
+
+ 1.8
+ Greenwich.SR1
+
+
+
+
+ org.springframework.boot
+ spring-boot-starter-actuator
+
+
+ org.springframework.boot
+ spring-boot-starter-data-jpa
+
+
+ org.springframework.boot
+ spring-boot-starter-web
+
+
+ org.springframework.cloud
+ spring-cloud-stream-binder-kafka
+
+
+
+ mysql
+ mysql-connector-java
+ runtime
+
+
+ org.projectlombok
+ lombok
+ true
+
+
+ org.springframework.boot
+ spring-boot-starter-test
+ test
+
+
+ org.springframework.cloud
+ spring-cloud-stream-test-support
+ test
+
+
+
+
+
+
+ org.springframework.cloud
+ spring-cloud-dependencies
+ ${spring-cloud.version}
+ pom
+ import
+
+
+
+
+
+
+
+ org.springframework.boot
+ spring-boot-maven-plugin
+
+
+
+
+
diff --git a/Chapter 15/kafka-barista-service/src/main/java/geektime/spring/springbucks/barista/BaristaServiceApplication.java b/Chapter 15/kafka-barista-service/src/main/java/geektime/spring/springbucks/barista/BaristaServiceApplication.java
new file mode 100644
index 0000000..eb48e6c
--- /dev/null
+++ b/Chapter 15/kafka-barista-service/src/main/java/geektime/spring/springbucks/barista/BaristaServiceApplication.java
@@ -0,0 +1,18 @@
+package geektime.spring.springbucks.barista;
+
+import geektime.spring.springbucks.barista.integration.Waiter;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.cloud.stream.annotation.EnableBinding;
+import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
+
+@EnableJpaRepositories
+@SpringBootApplication
+@EnableBinding(Waiter.class)
+public class BaristaServiceApplication {
+
+ public static void main(String[] args) {
+ SpringApplication.run(BaristaServiceApplication.class, args);
+ }
+
+}
diff --git a/Chapter 15/kafka-barista-service/src/main/java/geektime/spring/springbucks/barista/integration/OrderListener.java b/Chapter 15/kafka-barista-service/src/main/java/geektime/spring/springbucks/barista/integration/OrderListener.java
new file mode 100644
index 0000000..acf3c27
--- /dev/null
+++ b/Chapter 15/kafka-barista-service/src/main/java/geektime/spring/springbucks/barista/integration/OrderListener.java
@@ -0,0 +1,44 @@
+package geektime.spring.springbucks.barista.integration;
+
+import geektime.spring.springbucks.barista.model.CoffeeOrder;
+import geektime.spring.springbucks.barista.model.OrderState;
+import geektime.spring.springbucks.barista.repository.CoffeeOrderRepository;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Qualifier;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.cloud.stream.annotation.StreamListener;
+import org.springframework.messaging.MessageChannel;
+import org.springframework.messaging.handler.annotation.SendTo;
+import org.springframework.stereotype.Component;
+import org.springframework.transaction.annotation.Transactional;
+
+@Component
+@Slf4j
+@Transactional
+public class OrderListener {
+ @Autowired
+ private CoffeeOrderRepository orderRepository;
+ @Autowired
+ @Qualifier(Waiter.FINISHED_ORDERS)
+ private MessageChannel finishedOrdersMessageChannel;
+ @Value("${order.barista-prefix}${random.uuid}")
+ private String barista;
+
+ @StreamListener(Waiter.NEW_ORDERS)
+ @SendTo(Waiter.FINISHED_ORDERS)
+ public Long processNewOrder(Long id) {
+ CoffeeOrder o = orderRepository.getOne(id);
+ if (o == null) {
+ log.warn("Order id {} is NOT valid.", id);
+ throw new IllegalArgumentException("Order ID is INVAILD!");
+ }
+ log.info("Receive a new Order {}. Waiter: {}. Customer: {}",
+ id, o.getWaiter(), o.getCustomer());
+ o.setState(OrderState.BREWED);
+ o.setBarista(barista);
+ orderRepository.save(o);
+ log.info("Order {} is READY.", id);
+ return id;
+ }
+}
diff --git a/Chapter 15/kafka-barista-service/src/main/java/geektime/spring/springbucks/barista/integration/Waiter.java b/Chapter 15/kafka-barista-service/src/main/java/geektime/spring/springbucks/barista/integration/Waiter.java
new file mode 100644
index 0000000..4e5aea1
--- /dev/null
+++ b/Chapter 15/kafka-barista-service/src/main/java/geektime/spring/springbucks/barista/integration/Waiter.java
@@ -0,0 +1,17 @@
+package geektime.spring.springbucks.barista.integration;
+
+import org.springframework.cloud.stream.annotation.Input;
+import org.springframework.cloud.stream.annotation.Output;
+import org.springframework.messaging.MessageChannel;
+import org.springframework.messaging.SubscribableChannel;
+
+public interface Waiter {
+ String NEW_ORDERS = "newOrders";
+ String FINISHED_ORDERS = "finishedOrders";
+
+ @Input(NEW_ORDERS)
+ SubscribableChannel newOrders();
+
+ @Output(FINISHED_ORDERS)
+ MessageChannel finishedOrders();
+}
diff --git a/Chapter 15/kafka-barista-service/src/main/java/geektime/spring/springbucks/barista/model/CoffeeOrder.java b/Chapter 15/kafka-barista-service/src/main/java/geektime/spring/springbucks/barista/model/CoffeeOrder.java
new file mode 100644
index 0000000..ec1141a
--- /dev/null
+++ b/Chapter 15/kafka-barista-service/src/main/java/geektime/spring/springbucks/barista/model/CoffeeOrder.java
@@ -0,0 +1,38 @@
+package geektime.spring.springbucks.barista.model;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+import org.hibernate.annotations.CreationTimestamp;
+import org.hibernate.annotations.UpdateTimestamp;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.Enumerated;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.Table;
+import java.util.Date;
+
+@Entity
+@Table(name = "T_ORDER")
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class CoffeeOrder {
+ @Id
+ @GeneratedValue(strategy = GenerationType.IDENTITY)
+ private Long id;
+ private String customer;
+ private String waiter;
+ private String barista;
+ @Enumerated
+ @Column(nullable = false)
+ private OrderState state;
+ @Column(updatable = false)
+ @CreationTimestamp
+ private Date createTime;
+ @UpdateTimestamp
+ private Date updateTime;
+}
diff --git a/Chapter 15/kafka-barista-service/src/main/java/geektime/spring/springbucks/barista/model/OrderState.java b/Chapter 15/kafka-barista-service/src/main/java/geektime/spring/springbucks/barista/model/OrderState.java
new file mode 100644
index 0000000..73673d7
--- /dev/null
+++ b/Chapter 15/kafka-barista-service/src/main/java/geektime/spring/springbucks/barista/model/OrderState.java
@@ -0,0 +1,5 @@
+package geektime.spring.springbucks.barista.model;
+
+public enum OrderState {
+ INIT, PAID, BREWING, BREWED, TAKEN, CANCELLED
+}
diff --git a/Chapter 15/kafka-barista-service/src/main/java/geektime/spring/springbucks/barista/repository/CoffeeOrderRepository.java b/Chapter 15/kafka-barista-service/src/main/java/geektime/spring/springbucks/barista/repository/CoffeeOrderRepository.java
new file mode 100644
index 0000000..b41647d
--- /dev/null
+++ b/Chapter 15/kafka-barista-service/src/main/java/geektime/spring/springbucks/barista/repository/CoffeeOrderRepository.java
@@ -0,0 +1,7 @@
+package geektime.spring.springbucks.barista.repository;
+
+import geektime.spring.springbucks.barista.model.CoffeeOrder;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface CoffeeOrderRepository extends JpaRepository {
+}
diff --git a/Chapter 15/kafka-barista-service/src/main/resources/application.properties b/Chapter 15/kafka-barista-service/src/main/resources/application.properties
new file mode 100644
index 0000000..8d05f06
--- /dev/null
+++ b/Chapter 15/kafka-barista-service/src/main/resources/application.properties
@@ -0,0 +1,21 @@
+spring.application.name=barista-service
+
+order.barista-prefix=springbucks-
+
+server.port=8070
+
+management.endpoints.web.exposure.include=*
+management.endpoint.health.show-details=always
+
+spring.jpa.hibernate.ddl-auto=none
+spring.jpa.properties.hibernate.show_sql=true
+spring.jpa.properties.hibernate.format_sql=true
+
+spring.datasource.url=jdbc:mysql://localhost/springbucks
+spring.datasource.username=springbucks
+spring.datasource.password=springbucks
+
+spring.cloud.stream.kafka.binder.brokers=localhost
+spring.cloud.stream.kafka.binder.defaultBrokerPort=9092
+
+spring.cloud.stream.bindings.newOrders.group=barista-service
\ No newline at end of file
diff --git a/Chapter 15/kafka-barista-service/src/test/java/geektime/spring/springbucks/barista/BaristaServiceApplicationTests.java b/Chapter 15/kafka-barista-service/src/test/java/geektime/spring/springbucks/barista/BaristaServiceApplicationTests.java
new file mode 100644
index 0000000..ab8a806
--- /dev/null
+++ b/Chapter 15/kafka-barista-service/src/test/java/geektime/spring/springbucks/barista/BaristaServiceApplicationTests.java
@@ -0,0 +1,16 @@
+package geektime.spring.springbucks.barista;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest
+public class BaristaServiceApplicationTests {
+
+ @Test
+ public void contextLoads() {
+ }
+
+}
diff --git a/Chapter 15/kafka-waiter-service/.gitignore b/Chapter 15/kafka-waiter-service/.gitignore
new file mode 100644
index 0000000..ba5cb5c
--- /dev/null
+++ b/Chapter 15/kafka-waiter-service/.gitignore
@@ -0,0 +1,26 @@
+HELP.md
+/target/
+!.mvn/wrapper/maven-wrapper.jar
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+/build/
diff --git a/Chapter 15/kafka-waiter-service/docker-compose.yml b/Chapter 15/kafka-waiter-service/docker-compose.yml
new file mode 100644
index 0000000..0122767
--- /dev/null
+++ b/Chapter 15/kafka-waiter-service/docker-compose.yml
@@ -0,0 +1,19 @@
+---
+version: '2'
+services:
+ zookeeper:
+ image: zookeeper:latest
+
+ kafka:
+ image: confluentinc/cp-kafka:latest
+ depends_on:
+ - zookeeper
+ ports:
+ - 9092:9092
+ environment:
+ KAFKA_BROKER_ID: 1
+ KAFKA_ZOOKEEPER_CONNECT: zookeeper:2181
+ KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://kafka:29092,PLAINTEXT_HOST://localhost:9092
+ KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: PLAINTEXT:PLAINTEXT,PLAINTEXT_HOST:PLAINTEXT
+ KAFKA_INTER_BROKER_LISTENER_NAME: PLAINTEXT
+ KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
\ No newline at end of file
diff --git a/Chapter 15/kafka-waiter-service/pom.xml b/Chapter 15/kafka-waiter-service/pom.xml
new file mode 100644
index 0000000..1b7446f
--- /dev/null
+++ b/Chapter 15/kafka-waiter-service/pom.xml
@@ -0,0 +1,125 @@
+
+
+ 4.0.0
+
+ org.springframework.boot
+ spring-boot-starter-parent
+ 2.1.4.RELEASE
+
+
+ geektime.spring.springbucks
+ waiter-service
+ 0.0.1-SNAPSHOT
+ waiter-service
+ Demo project for Spring Boot
+
+
+ 1.8
+ Greenwich.SR1
+
+
+
+
+ org.springframework.boot
+ spring-boot-starter-cache
+
+
+ org.springframework.boot
+ spring-boot-starter-data-jpa
+
+
+ org.springframework.boot
+ spring-boot-starter-web
+
+
+ org.springframework.boot
+ spring-boot-starter-actuator
+
+
+
+ org.springframework.cloud
+ spring-cloud-starter-consul-discovery
+
+
+ org.springframework.cloud
+ spring-cloud-starter-consul-config
+
+
+
+ org.springframework.cloud
+ spring-cloud-starter-stream-kafka
+
+
+
+ io.github.resilience4j
+ resilience4j-spring-boot2
+ 0.14.1
+
+
+
+ io.micrometer
+ micrometer-registry-prometheus
+
+
+
+ org.joda
+ joda-money
+ 1.0.1
+
+
+ org.jadira.usertype
+ usertype.core
+ 6.0.1.GA
+
+
+
+ com.fasterxml.jackson.datatype
+ jackson-datatype-hibernate5
+ 2.9.8
+
+
+
+ org.apache.commons
+ commons-lang3
+
+
+
+ mysql
+ mysql-connector-java
+ runtime
+
+
+ org.projectlombok
+ lombok
+ true
+
+
+ org.springframework.boot
+ spring-boot-starter-test
+ test
+
+
+
+
+
+
+ org.springframework.cloud
+ spring-cloud-dependencies
+ ${spring-cloud.version}
+ pom
+ import
+
+
+
+
+
+
+
+ org.springframework.boot
+ spring-boot-maven-plugin
+
+
+
+
+
diff --git a/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/WaiterServiceApplication.java b/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/WaiterServiceApplication.java
new file mode 100644
index 0000000..a0450d6
--- /dev/null
+++ b/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/WaiterServiceApplication.java
@@ -0,0 +1,48 @@
+package geektime.spring.springbucks.waiter;
+
+import com.fasterxml.jackson.datatype.hibernate5.Hibernate5Module;
+import geektime.spring.springbucks.waiter.controller.PerformanceInteceptor;
+import geektime.spring.springbucks.waiter.integration.Barista;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.autoconfigure.jackson.Jackson2ObjectMapperBuilderCustomizer;
+import org.springframework.cache.annotation.EnableCaching;
+import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
+import org.springframework.cloud.stream.annotation.EnableBinding;
+import org.springframework.context.annotation.Bean;
+import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
+import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
+
+import java.util.TimeZone;
+
+@SpringBootApplication
+@EnableJpaRepositories
+@EnableCaching
+@EnableDiscoveryClient
+@EnableBinding(Barista.class)
+public class WaiterServiceApplication implements WebMvcConfigurer {
+
+ public static void main(String[] args) {
+ SpringApplication.run(WaiterServiceApplication.class, args);
+ }
+
+ @Override
+ public void addInterceptors(InterceptorRegistry registry) {
+ registry.addInterceptor(new PerformanceInteceptor())
+ .addPathPatterns("/coffee/**").addPathPatterns("/order/**");
+ }
+
+ @Bean
+ public Hibernate5Module hibernate5Module() {
+ return new Hibernate5Module();
+ }
+
+ @Bean
+ public Jackson2ObjectMapperBuilderCustomizer jacksonBuilderCustomizer() {
+ return builder -> {
+ builder.indentOutput(true);
+ builder.timeZone(TimeZone.getTimeZone("Asia/Shanghai"));
+ };
+ }
+}
diff --git a/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/CoffeeController.java b/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/CoffeeController.java
new file mode 100644
index 0000000..783ab1e
--- /dev/null
+++ b/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/CoffeeController.java
@@ -0,0 +1,96 @@
+package geektime.spring.springbucks.waiter.controller;
+
+import geektime.spring.springbucks.waiter.controller.request.NewCoffeeRequest;
+import geektime.spring.springbucks.waiter.model.Coffee;
+import geektime.spring.springbucks.waiter.service.CoffeeService;
+import io.github.resilience4j.ratelimiter.annotation.RateLimiter;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.commons.lang3.StringUtils;
+import org.apache.commons.lang3.math.NumberUtils;
+import org.apache.tomcat.util.http.fileupload.IOUtils;
+import org.joda.money.CurrencyUnit;
+import org.joda.money.Money;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.MediaType;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.ResponseStatus;
+import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.multipart.MultipartFile;
+
+import javax.validation.Valid;
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
+import java.util.List;
+
+@RestController
+@RequestMapping("/coffee")
+@RateLimiter(name = "coffee")
+@Slf4j
+public class CoffeeController {
+ @Autowired
+ private CoffeeService coffeeService;
+
+ @PostMapping(path = "/", consumes = MediaType.APPLICATION_FORM_URLENCODED_VALUE)
+ @ResponseStatus(HttpStatus.CREATED)
+ public Coffee addCoffeeWithoutBindingResult(@Valid NewCoffeeRequest newCoffee) {
+ return coffeeService.saveCoffee(newCoffee.getName(), newCoffee.getPrice());
+ }
+
+ @PostMapping(path = "/", consumes = MediaType.APPLICATION_JSON_UTF8_VALUE)
+ @ResponseStatus(HttpStatus.CREATED)
+ public Coffee addJsonCoffeeWithoutBindingResult(@Valid @RequestBody NewCoffeeRequest newCoffee) {
+ return coffeeService.saveCoffee(newCoffee.getName(), newCoffee.getPrice());
+ }
+
+ @PostMapping(path = "/", consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
+ @ResponseStatus(HttpStatus.CREATED)
+ public List batchAddCoffee(@RequestParam("file") MultipartFile file) {
+ List coffees = new ArrayList<>();
+ if (!file.isEmpty()) {
+ BufferedReader reader = null;
+ try {
+ reader = new BufferedReader(
+ new InputStreamReader(file.getInputStream()));
+ String str;
+ while ((str = reader.readLine()) != null) {
+ String[] arr = StringUtils.split(str, " ");
+ if (arr != null && arr.length == 2) {
+ coffees.add(coffeeService.saveCoffee(arr[0],
+ Money.of(CurrencyUnit.of("CNY"),
+ NumberUtils.createBigDecimal(arr[1]))));
+ }
+ }
+ } catch (IOException e) {
+ log.error("exception", e);
+ } finally {
+ IOUtils.closeQuietly(reader);
+ }
+ }
+ return coffees;
+ }
+
+ @GetMapping(path = "/", params = "!name")
+ public List getAll() {
+ return coffeeService.getAllCoffee();
+ }
+
+ @GetMapping("/{id}")
+ public Coffee getById(@PathVariable Long id) {
+ Coffee coffee = coffeeService.getCoffee(id);
+ log.info("Coffee {}:", coffee);
+ return coffee;
+ }
+
+ @GetMapping(path = "/", params = "name")
+ public Coffee getByName(@RequestParam String name) {
+ return coffeeService.getCoffee(name);
+ }
+}
diff --git a/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/CoffeeOrderController.java b/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/CoffeeOrderController.java
new file mode 100644
index 0000000..98ef819
--- /dev/null
+++ b/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/CoffeeOrderController.java
@@ -0,0 +1,70 @@
+package geektime.spring.springbucks.waiter.controller;
+
+import geektime.spring.springbucks.waiter.controller.request.NewOrderRequest;
+import geektime.spring.springbucks.waiter.controller.request.OrderStateRequest;
+import geektime.spring.springbucks.waiter.model.Coffee;
+import geektime.spring.springbucks.waiter.model.CoffeeOrder;
+import geektime.spring.springbucks.waiter.service.CoffeeOrderService;
+import geektime.spring.springbucks.waiter.service.CoffeeService;
+import io.github.resilience4j.ratelimiter.RateLimiter;
+import io.github.resilience4j.ratelimiter.RateLimiterRegistry;
+import io.github.resilience4j.ratelimiter.RequestNotPermitted;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.MediaType;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.PutMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.ResponseStatus;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/order")
+@Slf4j
+public class CoffeeOrderController {
+ @Autowired
+ private CoffeeOrderService orderService;
+ @Autowired
+ private CoffeeService coffeeService;
+ private RateLimiter rateLimiter;
+
+ public CoffeeOrderController(RateLimiterRegistry rateLimiterRegistry) {
+ rateLimiter = rateLimiterRegistry.rateLimiter("order");
+ }
+
+ @GetMapping("/{id}")
+ public CoffeeOrder getOrder(@PathVariable("id") Long id) {
+ CoffeeOrder order = null;
+ try {
+ order = rateLimiter.executeSupplier(() -> orderService.get(id));
+ log.info("Get Order: {}", order);
+ } catch(RequestNotPermitted e) {
+ log.warn("Request Not Permitted! {}", e.getMessage());
+ }
+ return order;
+ }
+
+ @PostMapping(path = "/", consumes = MediaType.APPLICATION_JSON_VALUE,
+ produces = MediaType.APPLICATION_JSON_UTF8_VALUE)
+ @ResponseStatus(HttpStatus.CREATED)
+ @io.github.resilience4j.ratelimiter.annotation.RateLimiter(name = "order")
+ public CoffeeOrder create(@RequestBody NewOrderRequest newOrder) {
+ log.info("Receive new Order {}", newOrder);
+ Coffee[] coffeeList = coffeeService.getCoffeeByName(newOrder.getItems())
+ .toArray(new Coffee[] {});
+ return orderService.createOrder(newOrder.getCustomer(), coffeeList);
+ }
+
+ @PutMapping("/{id}")
+ public CoffeeOrder updateState(@PathVariable("id") Long id,
+ @RequestBody OrderStateRequest orderState) {
+ log.info("Update order {} with state {}", id, orderState);
+ CoffeeOrder order = orderService.get(id);
+ orderService.updateState(order, orderState.getState());
+ return order;
+ }
+}
diff --git a/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/PerformanceInteceptor.java b/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/PerformanceInteceptor.java
new file mode 100644
index 0000000..9ab2e4d
--- /dev/null
+++ b/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/PerformanceInteceptor.java
@@ -0,0 +1,46 @@
+package geektime.spring.springbucks.waiter.controller;
+
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.util.StopWatch;
+import org.springframework.web.method.HandlerMethod;
+import org.springframework.web.servlet.HandlerInterceptor;
+import org.springframework.web.servlet.ModelAndView;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+@Slf4j
+public class PerformanceInteceptor implements HandlerInterceptor {
+ private ThreadLocal stopWatch = new ThreadLocal<>();
+
+ @Override
+ public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
+ StopWatch sw = new StopWatch();
+ stopWatch.set(sw);
+ sw.start();
+ return true;
+ }
+
+ @Override
+ public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
+ stopWatch.get().stop();
+ stopWatch.get().start();
+ }
+
+ @Override
+ public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
+ StopWatch sw = stopWatch.get();
+ sw.stop();
+ String method = handler.getClass().getSimpleName();
+ if (handler instanceof HandlerMethod) {
+ String beanType = ((HandlerMethod) handler).getBeanType().getName();
+ String methodName = ((HandlerMethod) handler).getMethod().getName();
+ method = beanType + "." + methodName;
+ }
+ log.info("{};{};{};{};{}ms;{}ms;{}ms", request.getRequestURI(), method,
+ response.getStatus(), ex == null ? "-" : ex.getClass().getSimpleName(),
+ sw.getTotalTimeMillis(), sw.getTotalTimeMillis() - sw.getLastTaskTimeMillis(),
+ sw.getLastTaskTimeMillis());
+ stopWatch.remove();
+ }
+}
diff --git a/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/request/NewCoffeeRequest.java b/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/request/NewCoffeeRequest.java
new file mode 100644
index 0000000..5d98011
--- /dev/null
+++ b/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/request/NewCoffeeRequest.java
@@ -0,0 +1,19 @@
+package geektime.spring.springbucks.waiter.controller.request;
+
+import lombok.Getter;
+import lombok.Setter;
+import lombok.ToString;
+import org.joda.money.Money;
+
+import javax.validation.constraints.NotEmpty;
+import javax.validation.constraints.NotNull;
+
+@Getter
+@Setter
+@ToString
+public class NewCoffeeRequest {
+ @NotEmpty
+ private String name;
+ @NotNull
+ private Money price;
+}
diff --git a/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/request/NewOrderRequest.java b/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/request/NewOrderRequest.java
new file mode 100644
index 0000000..53674ca
--- /dev/null
+++ b/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/request/NewOrderRequest.java
@@ -0,0 +1,15 @@
+package geektime.spring.springbucks.waiter.controller.request;
+
+import lombok.Getter;
+import lombok.Setter;
+import lombok.ToString;
+
+import java.util.List;
+
+@Getter
+@Setter
+@ToString
+public class NewOrderRequest {
+ private String customer;
+ private List items;
+}
diff --git a/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/request/OrderStateRequest.java b/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/request/OrderStateRequest.java
new file mode 100644
index 0000000..44e149f
--- /dev/null
+++ b/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/request/OrderStateRequest.java
@@ -0,0 +1,13 @@
+package geektime.spring.springbucks.waiter.controller.request;
+
+import geektime.spring.springbucks.waiter.model.OrderState;
+import lombok.Getter;
+import lombok.Setter;
+import lombok.ToString;
+
+@Getter
+@Setter
+@ToString
+public class OrderStateRequest {
+ private OrderState state;
+}
diff --git a/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/integration/Barista.java b/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/integration/Barista.java
new file mode 100644
index 0000000..deca3e7
--- /dev/null
+++ b/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/integration/Barista.java
@@ -0,0 +1,17 @@
+package geektime.spring.springbucks.waiter.integration;
+
+import org.springframework.cloud.stream.annotation.Input;
+import org.springframework.cloud.stream.annotation.Output;
+import org.springframework.messaging.MessageChannel;
+import org.springframework.messaging.SubscribableChannel;
+
+public interface Barista {
+ String NEW_ORDERS = "newOrders";
+ String FINISHED_ORDERS = "finishedOrders";
+
+ @Input
+ SubscribableChannel finishedOrders();
+
+ @Output
+ MessageChannel newOrders();
+}
diff --git a/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/integration/OrderListener.java b/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/integration/OrderListener.java
new file mode 100644
index 0000000..bc60212
--- /dev/null
+++ b/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/integration/OrderListener.java
@@ -0,0 +1,14 @@
+package geektime.spring.springbucks.waiter.integration;
+
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.cloud.stream.annotation.StreamListener;
+import org.springframework.stereotype.Component;
+
+@Component
+@Slf4j
+public class OrderListener {
+ @StreamListener(Barista.FINISHED_ORDERS)
+ public void listenFinishedOrders(Long id) {
+ log.info("We've finished an order [{}].", id);
+ }
+}
diff --git a/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/model/BaseEntity.java b/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/model/BaseEntity.java
new file mode 100644
index 0000000..95cd49c
--- /dev/null
+++ b/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/model/BaseEntity.java
@@ -0,0 +1,32 @@
+package geektime.spring.springbucks.waiter.model;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+import org.hibernate.annotations.CreationTimestamp;
+import org.hibernate.annotations.UpdateTimestamp;
+
+import javax.persistence.Column;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.MappedSuperclass;
+import java.io.Serializable;
+import java.util.Date;
+
+@MappedSuperclass
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+// 增加了jackson-datatype-hibernate5就不需要这个Ignore了
+//@JsonIgnoreProperties(value = {"hibernateLazyInitializer"})
+public class BaseEntity implements Serializable {
+ @Id
+ @GeneratedValue(strategy = GenerationType.IDENTITY)
+ private Long id;
+ @Column(updatable = false)
+ @CreationTimestamp
+ private Date createTime;
+ @UpdateTimestamp
+ private Date updateTime;
+}
diff --git a/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/model/Coffee.java b/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/model/Coffee.java
new file mode 100644
index 0000000..1dc122b
--- /dev/null
+++ b/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/model/Coffee.java
@@ -0,0 +1,29 @@
+package geektime.spring.springbucks.waiter.model;
+
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import lombok.NoArgsConstructor;
+import lombok.ToString;
+import org.hibernate.annotations.Type;
+import org.joda.money.Money;
+
+import javax.persistence.Entity;
+import javax.persistence.Table;
+import java.io.Serializable;
+
+@Entity
+@Table(name = "T_COFFEE")
+@Builder
+@Data
+@EqualsAndHashCode(callSuper = true)
+@ToString(callSuper = true)
+@NoArgsConstructor
+@AllArgsConstructor
+public class Coffee extends BaseEntity implements Serializable {
+ private String name;
+ @Type(type = "org.jadira.usertype.moneyandcurrency.joda.PersistentMoneyMinorAmount",
+ parameters = {@org.hibernate.annotations.Parameter(name = "currencyCode", value = "CNY")})
+ private Money price;
+}
diff --git a/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/model/CoffeeOrder.java b/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/model/CoffeeOrder.java
new file mode 100644
index 0000000..11022df
--- /dev/null
+++ b/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/model/CoffeeOrder.java
@@ -0,0 +1,45 @@
+package geektime.spring.springbucks.waiter.model;
+
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import lombok.NoArgsConstructor;
+import lombok.ToString;
+import org.hibernate.annotations.Type;
+import org.joda.money.Money;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.Enumerated;
+import javax.persistence.JoinTable;
+import javax.persistence.ManyToMany;
+import javax.persistence.OrderBy;
+import javax.persistence.Table;
+import java.io.Serializable;
+import java.util.List;
+
+@Entity
+@Table(name = "T_ORDER")
+@Data
+@EqualsAndHashCode(callSuper = true)
+@ToString(callSuper = true)
+@NoArgsConstructor
+@AllArgsConstructor
+@Builder
+public class CoffeeOrder extends BaseEntity implements Serializable {
+ private String customer;
+ @ManyToMany
+ @JoinTable(name = "T_ORDER_COFFEE")
+ @OrderBy("id")
+ private List items;
+ @Enumerated
+ @Column(nullable = false)
+ private OrderState state;
+ private Integer discount;
+ @Type(type = "org.jadira.usertype.moneyandcurrency.joda.PersistentMoneyMinorAmount",
+ parameters = {@org.hibernate.annotations.Parameter(name = "currencyCode", value = "CNY")})
+ private Money total;
+ private String waiter;
+ private String barista;
+}
diff --git a/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/model/OrderState.java b/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/model/OrderState.java
new file mode 100644
index 0000000..cbc6383
--- /dev/null
+++ b/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/model/OrderState.java
@@ -0,0 +1,5 @@
+package geektime.spring.springbucks.waiter.model;
+
+public enum OrderState {
+ INIT, PAID, BREWING, BREWED, TAKEN, CANCELLED
+}
diff --git a/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/repository/CoffeeOrderRepository.java b/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/repository/CoffeeOrderRepository.java
new file mode 100644
index 0000000..20b3cf1
--- /dev/null
+++ b/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/repository/CoffeeOrderRepository.java
@@ -0,0 +1,7 @@
+package geektime.spring.springbucks.waiter.repository;
+
+import geektime.spring.springbucks.waiter.model.CoffeeOrder;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface CoffeeOrderRepository extends JpaRepository {
+}
diff --git a/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/repository/CoffeeRepository.java b/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/repository/CoffeeRepository.java
new file mode 100644
index 0000000..6f60a2e
--- /dev/null
+++ b/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/repository/CoffeeRepository.java
@@ -0,0 +1,11 @@
+package geektime.spring.springbucks.waiter.repository;
+
+import geektime.spring.springbucks.waiter.model.Coffee;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+import java.util.List;
+
+public interface CoffeeRepository extends JpaRepository {
+ List findByNameInOrderById(List list);
+ Coffee findByName(String name);
+}
diff --git a/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/service/CoffeeOrderService.java b/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/service/CoffeeOrderService.java
new file mode 100644
index 0000000..fa4a847
--- /dev/null
+++ b/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/service/CoffeeOrderService.java
@@ -0,0 +1,92 @@
+package geektime.spring.springbucks.waiter.service;
+
+import geektime.spring.springbucks.waiter.integration.Barista;
+import geektime.spring.springbucks.waiter.model.Coffee;
+import geektime.spring.springbucks.waiter.model.CoffeeOrder;
+import geektime.spring.springbucks.waiter.model.OrderState;
+import geektime.spring.springbucks.waiter.repository.CoffeeOrderRepository;
+import geektime.spring.springbucks.waiter.support.OrderProperties;
+import io.micrometer.core.instrument.Counter;
+import io.micrometer.core.instrument.MeterRegistry;
+import io.micrometer.core.instrument.binder.MeterBinder;
+import lombok.extern.slf4j.Slf4j;
+import org.joda.money.Money;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.messaging.support.MessageBuilder;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.math.RoundingMode;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.UUID;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+@Service
+@Transactional
+@Slf4j
+public class CoffeeOrderService implements MeterBinder {
+ @Autowired
+ private CoffeeOrderRepository orderRepository;
+ @Autowired
+ private OrderProperties orderProperties;
+ @Autowired
+ private Barista barista;
+
+ private String waiterId = UUID.randomUUID().toString();
+
+ private Counter orderCounter = null;
+
+ public CoffeeOrder get(Long id) {
+ return orderRepository.getOne(id);
+ }
+
+ public CoffeeOrder createOrder(String customer, Coffee...coffee) {
+ CoffeeOrder order = CoffeeOrder.builder()
+ .customer(customer)
+ .items(new ArrayList<>(Arrays.asList(coffee)))
+ .discount(orderProperties.getDiscount())
+ .total(calcTotal(coffee))
+ .state(OrderState.INIT)
+ .waiter(orderProperties.getWaiterPrefix() + waiterId)
+ .build();
+ CoffeeOrder saved = orderRepository.save(order);
+ log.info("New Order: {}", saved);
+ orderCounter.increment();
+ return saved;
+ }
+
+ public boolean updateState(CoffeeOrder order, OrderState state) {
+ if (order == null) {
+ log.warn("Can not find order.");
+ return false;
+ }
+ if (state.compareTo(order.getState()) <= 0) {
+ log.warn("Wrong State order: {}, {}", state, order.getState());
+ return false;
+ }
+ order.setState(state);
+ orderRepository.save(order);
+ log.info("Updated Order: {}", order);
+ if (state == OrderState.PAID) {
+ // 有返回值，如果要关注发送结果，则判断返回值
+ // 一般消息体不会这么简单
+ barista.newOrders().send(MessageBuilder.withPayload(order.getId()).build());
+ }
+ return true;
+ }
+
+ @Override
+ public void bindTo(MeterRegistry meterRegistry) {
+ this.orderCounter = meterRegistry.counter("order.count");
+ }
+
+ private Money calcTotal(Coffee...coffee) {
+ List items = Stream.of(coffee).map(c -> c.getPrice())
+ .collect(Collectors.toList());
+ return Money.total(items).multipliedBy(orderProperties.getDiscount())
+ .dividedBy(100, RoundingMode.HALF_UP);
+ }
+}
diff --git a/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/service/CoffeeService.java b/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/service/CoffeeService.java
new file mode 100644
index 0000000..7f567cb
--- /dev/null
+++ b/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/service/CoffeeService.java
@@ -0,0 +1,51 @@
+package geektime.spring.springbucks.waiter.service;
+
+import geektime.spring.springbucks.waiter.model.Coffee;
+import geektime.spring.springbucks.waiter.repository.CoffeeRepository;
+import lombok.extern.slf4j.Slf4j;
+import org.joda.money.Money;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.cache.annotation.CacheConfig;
+import org.springframework.cache.annotation.Cacheable;
+import org.springframework.data.domain.Example;
+import org.springframework.data.domain.Sort;
+import org.springframework.stereotype.Service;
+
+import java.util.Arrays;
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+
+@Service
+@Slf4j
+@CacheConfig(cacheNames = "CoffeeCache")
+public class CoffeeService {
+ @Autowired
+ private CoffeeRepository coffeeRepository;
+
+ public Coffee saveCoffee(String name, Money price) {
+ return coffeeRepository.save(Coffee.builder().name(name).price(price).build());
+ }
+
+ @Cacheable
+ public List getAllCoffee() {
+ return coffeeRepository.findAll(Sort.by("id"));
+ }
+
+ public Coffee getCoffee(Long id) {
+// return coffeeRepository.findById(id).get();
+ return coffeeRepository.getOne(id);
+ }
+
+ public long getCoffeeCount() {
+ return coffeeRepository.count();
+ }
+
+ public Coffee getCoffee(String name) {
+ return coffeeRepository.findByName(name);
+ }
+
+ public List getCoffeeByName(List names) {
+ return coffeeRepository.findByNameInOrderById(names);
+ }
+}
diff --git a/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/support/CoffeeIndicator.java b/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/support/CoffeeIndicator.java
new file mode 100644
index 0000000..ee2e69b
--- /dev/null
+++ b/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/support/CoffeeIndicator.java
@@ -0,0 +1,31 @@
+package geektime.spring.springbucks.waiter.support;
+
+import geektime.spring.springbucks.waiter.service.CoffeeService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.actuate.health.Health;
+import org.springframework.boot.actuate.health.HealthIndicator;
+import org.springframework.stereotype.Component;
+
+@Component
+public class CoffeeIndicator implements HealthIndicator {
+ @Autowired
+ private CoffeeService coffeeService;
+
+ @Override
+ public Health health() {
+ long count = coffeeService.getCoffeeCount();
+ Health health;
+ if (count > 0) {
+ health = Health.up()
+ .withDetail("count", count)
+ .withDetail("message", "We have enough coffee.")
+ .build();
+ } else {
+ health = Health.down()
+ .withDetail("count", 0)
+ .withDetail("message", "We are out of coffee.")
+ .build();
+ }
+ return health;
+ }
+}
diff --git a/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/support/MoneyDeserializer.java b/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/support/MoneyDeserializer.java
new file mode 100644
index 0000000..30a9ebc
--- /dev/null
+++ b/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/support/MoneyDeserializer.java
@@ -0,0 +1,23 @@
+package geektime.spring.springbucks.waiter.support;
+
+import com.fasterxml.jackson.core.JsonParser;
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.DeserializationContext;
+import com.fasterxml.jackson.databind.deser.std.StdDeserializer;
+import org.joda.money.CurrencyUnit;
+import org.joda.money.Money;
+import org.springframework.boot.jackson.JsonComponent;
+
+import java.io.IOException;
+
+@JsonComponent
+public class MoneyDeserializer extends StdDeserializer {
+ protected MoneyDeserializer() {
+ super(Money.class);
+ }
+
+ @Override
+ public Money deserialize(JsonParser p, DeserializationContext ctxt) throws IOException, JsonProcessingException {
+ return Money.of(CurrencyUnit.of("CNY"), p.getDecimalValue());
+ }
+}
diff --git a/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/support/MoneyFormatter.java b/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/support/MoneyFormatter.java
new file mode 100644
index 0000000..1d0c712
--- /dev/null
+++ b/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/support/MoneyFormatter.java
@@ -0,0 +1,42 @@
+package geektime.spring.springbucks.waiter.support;
+
+import org.apache.commons.lang3.StringUtils;
+import org.apache.commons.lang3.math.NumberUtils;
+import org.joda.money.CurrencyUnit;
+import org.joda.money.Money;
+import org.springframework.format.Formatter;
+import org.springframework.stereotype.Component;
+
+import java.text.ParseException;
+import java.util.Locale;
+
+@Component
+public class MoneyFormatter implements Formatter {
+ /**
+ * 处理 CNY 10.00 / 10.00 形式的字符串
+ * 校验不太严密，仅作演示
+ */
+ @Override
+ public Money parse(String text, Locale locale) throws ParseException {
+ if (NumberUtils.isParsable(text)) {
+ return Money.of(CurrencyUnit.of("CNY"), NumberUtils.createBigDecimal(text));
+ } else if (StringUtils.isNotEmpty(text)) {
+ String[] split = StringUtils.split(text, " ");
+ if (split != null && split.length == 2 && NumberUtils.isParsable(split[1])) {
+ return Money.of(CurrencyUnit.of(split[0]),
+ NumberUtils.createBigDecimal(split[1]));
+ } else {
+ throw new ParseException(text, 0);
+ }
+ }
+ throw new ParseException(text, 0);
+ }
+
+ @Override
+ public String print(Money money, Locale locale) {
+ if (money == null) {
+ return null;
+ }
+ return money.getCurrencyUnit().getCode() + " " + money.getAmount();
+ }
+}
diff --git a/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/support/MoneySerializer.java b/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/support/MoneySerializer.java
new file mode 100644
index 0000000..463666d
--- /dev/null
+++ b/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/support/MoneySerializer.java
@@ -0,0 +1,21 @@
+package geektime.spring.springbucks.waiter.support;
+
+import com.fasterxml.jackson.core.JsonGenerator;
+import com.fasterxml.jackson.databind.SerializerProvider;
+import com.fasterxml.jackson.databind.ser.std.StdSerializer;
+import org.joda.money.Money;
+import org.springframework.boot.jackson.JsonComponent;
+
+import java.io.IOException;
+
+@JsonComponent
+public class MoneySerializer extends StdSerializer {
+ protected MoneySerializer() {
+ super(Money.class);
+ }
+
+ @Override
+ public void serialize(Money money, JsonGenerator jsonGenerator, SerializerProvider serializerProvider) throws IOException {
+ jsonGenerator.writeNumber(money.getAmount());
+ }
+}
diff --git a/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/support/OrderProperties.java b/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/support/OrderProperties.java
new file mode 100644
index 0000000..c840c3f
--- /dev/null
+++ b/Chapter 15/kafka-waiter-service/src/main/java/geektime/spring/springbucks/waiter/support/OrderProperties.java
@@ -0,0 +1,15 @@
+package geektime.spring.springbucks.waiter.support;
+
+import lombok.Data;
+import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.cloud.context.config.annotation.RefreshScope;
+import org.springframework.stereotype.Component;
+
+@ConfigurationProperties("order")
+@RefreshScope
+@Data
+@Component
+public class OrderProperties {
+ private Integer discount = 100;
+ private String waiterPrefix = "springbucks-";
+}
diff --git a/Chapter 15/kafka-waiter-service/src/main/resources/application.properties b/Chapter 15/kafka-waiter-service/src/main/resources/application.properties
new file mode 100644
index 0000000..b3efa3b
--- /dev/null
+++ b/Chapter 15/kafka-waiter-service/src/main/resources/application.properties
@@ -0,0 +1,37 @@
+spring.jpa.hibernate.ddl-auto=none
+spring.jpa.properties.hibernate.show_sql=false
+spring.jpa.properties.hibernate.format_sql=false
+
+# 运行过一次后，如果不想清空数据库就注释掉下面这行
+spring.datasource.initialization-mode=always
+
+management.endpoints.web.exposure.include=*
+management.endpoint.health.show-details=always
+
+info.app.author=DigitalSonic
+info.app.encoding=@project.build.sourceEncoding@
+
+server.port=8080
+
+spring.datasource.url=jdbc:mysql://localhost/springbucks
+spring.datasource.username=springbucks
+spring.datasource.password=springbucks
+
+order.discount=95
+
+resilience4j.ratelimiter.limiters.coffee.limit-for-period=5
+resilience4j.ratelimiter.limiters.coffee.limit-refresh-period-in-millis=30000
+resilience4j.ratelimiter.limiters.coffee.timeout-in-millis=5000
+resilience4j.ratelimiter.limiters.coffee.subscribe-for-events=true
+resilience4j.ratelimiter.limiters.coffee.register-health-indicator=true
+
+resilience4j.ratelimiter.limiters.order.limit-for-period=3
+resilience4j.ratelimiter.limiters.order.limit-refresh-period-in-millis=30000
+resilience4j.ratelimiter.limiters.order.timeout-in-millis=1000
+resilience4j.ratelimiter.limiters.order.subscribe-for-events=true
+resilience4j.ratelimiter.limiters.order.register-health-indicator=true
+
+spring.cloud.stream.kafka.binder.brokers=localhost
+spring.cloud.stream.kafka.binder.defaultBrokerPort=9092
+
+spring.cloud.stream.bindings.finishedOrders.group=waiter-service
diff --git a/Chapter 15/kafka-waiter-service/src/main/resources/bootstrap.properties b/Chapter 15/kafka-waiter-service/src/main/resources/bootstrap.properties
new file mode 100644
index 0000000..5536bb1
--- /dev/null
+++ b/Chapter 15/kafka-waiter-service/src/main/resources/bootstrap.properties
@@ -0,0 +1,8 @@
+spring.application.name=waiter-service
+
+spring.cloud.consul.host=localhost
+spring.cloud.consul.port=8500
+spring.cloud.consul.discovery.prefer-ip-address=true
+
+spring.cloud.consul.config.enabled=true
+spring.cloud.consul.config.format=yaml
\ No newline at end of file
diff --git a/Chapter 15/kafka-waiter-service/src/main/resources/coffee.txt b/Chapter 15/kafka-waiter-service/src/main/resources/coffee.txt
new file mode 100644
index 0000000..00f81c3
--- /dev/null
+++ b/Chapter 15/kafka-waiter-service/src/main/resources/coffee.txt
@@ -0,0 +1,2 @@
+Americano 25.0
+Italian 30.0
\ No newline at end of file
diff --git a/Chapter 15/kafka-waiter-service/src/main/resources/data.sql b/Chapter 15/kafka-waiter-service/src/main/resources/data.sql
new file mode 100644
index 0000000..929682f
--- /dev/null
+++ b/Chapter 15/kafka-waiter-service/src/main/resources/data.sql
@@ -0,0 +1,5 @@
+insert into t_coffee (name, price, create_time, update_time) values ('espresso', 2000, now(), now());
+insert into t_coffee (name, price, create_time, update_time) values ('latte', 2500, now(), now());
+insert into t_coffee (name, price, create_time, update_time) values ('capuccino', 2500, now(), now());
+insert into t_coffee (name, price, create_time, update_time) values ('mocha', 3000, now(), now());
+insert into t_coffee (name, price, create_time, update_time) values ('macchiato', 3000, now(), now());
diff --git a/Chapter 15/kafka-waiter-service/src/main/resources/schema.sql b/Chapter 15/kafka-waiter-service/src/main/resources/schema.sql
new file mode 100644
index 0000000..31e937b
--- /dev/null
+++ b/Chapter 15/kafka-waiter-service/src/main/resources/schema.sql
@@ -0,0 +1,33 @@
+# 注意 MySQL 与 H2 的语法差异
+# H2: drop table tbl if exists;
+# MySQL: drop table if exists tbl;
+drop table if exists t_coffee;
+drop table if exists t_order;
+drop table if exists t_order_coffee;
+
+create table t_coffee (
+ id bigint auto_increment,
+ create_time timestamp,
+ update_time timestamp,
+ name varchar(255),
+ price bigint,
+ primary key (id)
+);
+
+create table t_order (
+ id bigint auto_increment,
+ create_time timestamp,
+ update_time timestamp,
+ customer varchar(255),
+ waiter varchar(255),
+ barista varchar(255),
+ discount integer,
+ total bigint,
+ state integer,
+ primary key (id)
+);
+
+create table t_order_coffee (
+ coffee_order_id bigint not null,
+ items_id bigint not null
+);
diff --git a/Chapter 15/kafka-waiter-service/src/test/java/geektime/spring/springbucks/waiter/WaiterServiceApplicationTests.java b/Chapter 15/kafka-waiter-service/src/test/java/geektime/spring/springbucks/waiter/WaiterServiceApplicationTests.java
new file mode 100644
index 0000000..209b785
--- /dev/null
+++ b/Chapter 15/kafka-waiter-service/src/test/java/geektime/spring/springbucks/waiter/WaiterServiceApplicationTests.java
@@ -0,0 +1,16 @@
+package geektime.spring.springbucks.waiter;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest
+public class WaiterServiceApplicationTests {
+
+ @Test
+ public void contextLoads() {
+ }
+
+}
diff --git a/Chapter 15/lazy-customer-service/.gitignore b/Chapter 15/lazy-customer-service/.gitignore
new file mode 100644
index 0000000..ba5cb5c
--- /dev/null
+++ b/Chapter 15/lazy-customer-service/.gitignore
@@ -0,0 +1,26 @@
+HELP.md
+/target/
+!.mvn/wrapper/maven-wrapper.jar
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+/build/
diff --git a/Chapter 15/lazy-customer-service/pom.xml b/Chapter 15/lazy-customer-service/pom.xml
new file mode 100644
index 0000000..c54eba0
--- /dev/null
+++ b/Chapter 15/lazy-customer-service/pom.xml
@@ -0,0 +1,104 @@
+
+
+ 4.0.0
+
+ org.springframework.boot
+ spring-boot-starter-parent
+ 2.1.4.RELEASE
+
+
+ geektime.spring.springbucks
+ customer-service
+ 0.0.1-SNAPSHOT
+ customer-service
+ Demo project for Spring Boot
+
+
+ 1.8
+ Greenwich.SR1
+
+
+
+
+ io.github.resilience4j
+ resilience4j-spring-boot2
+ 0.14.1
+
+
+
+ org.springframework.boot
+ spring-boot-starter-web
+
+
+ org.springframework.boot
+ spring-boot-starter-actuator
+
+
+ org.springframework.cloud
+ spring-cloud-starter-consul-discovery
+
+
+ org.springframework.cloud
+ spring-cloud-starter-openfeign
+
+
+ io.github.openfeign
+ feign-httpclient
+
+
+ org.springframework.cloud
+ spring-cloud-starter-stream-rabbit
+
+
+
+ org.joda
+ joda-money
+ 1.0.1
+
+
+
+ org.apache.commons
+ commons-lang3
+
+
+
+ org.apache.httpcomponents
+ httpclient
+ 4.5.7
+
+
+
+ org.projectlombok
+ lombok
+ true
+
+
+ org.springframework.boot
+ spring-boot-starter-test
+ test
+
+
+
+
+
+
+ org.springframework.cloud
+ spring-cloud-dependencies
+ ${spring-cloud.version}
+ pom
+ import
+
+
+
+
+
+
+
+ org.springframework.boot
+ spring-boot-maven-plugin
+
+
+
+
+
diff --git a/Chapter 15/lazy-customer-service/src/main/java/geektime/spring/springbucks/customer/CustomerServiceApplication.java b/Chapter 15/lazy-customer-service/src/main/java/geektime/spring/springbucks/customer/CustomerServiceApplication.java
new file mode 100644
index 0000000..789eb53
--- /dev/null
+++ b/Chapter 15/lazy-customer-service/src/main/java/geektime/spring/springbucks/customer/CustomerServiceApplication.java
@@ -0,0 +1,41 @@
+package geektime.spring.springbucks.customer;
+
+import geektime.spring.springbucks.customer.integration.Waiter;
+import geektime.spring.springbucks.customer.support.CustomConnectionKeepAliveStrategy;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.http.impl.client.CloseableHttpClient;
+import org.apache.http.impl.client.HttpClients;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
+import org.springframework.cloud.openfeign.EnableFeignClients;
+import org.springframework.cloud.stream.annotation.EnableBinding;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.EnableAspectJAutoProxy;
+
+import java.util.concurrent.TimeUnit;
+
+@SpringBootApplication
+@Slf4j
+@EnableDiscoveryClient
+@EnableFeignClients
+@EnableAspectJAutoProxy
+@EnableBinding(Waiter.class)
+public class CustomerServiceApplication {
+
+ public static void main(String[] args) {
+ SpringApplication.run(CustomerServiceApplication.class, args);
+ }
+
+ @Bean
+ public CloseableHttpClient httpClient() {
+ return HttpClients.custom()
+ .setConnectionTimeToLive(30, TimeUnit.SECONDS)
+ .evictIdleConnections(30, TimeUnit.SECONDS)
+ .setMaxConnTotal(200)
+ .setMaxConnPerRoute(20)
+ .disableAutomaticRetries()
+ .setKeepAliveStrategy(new CustomConnectionKeepAliveStrategy())
+ .build();
+ }
+}
diff --git a/Chapter 15/lazy-customer-service/src/main/java/geektime/spring/springbucks/customer/controller/CustomerController.java b/Chapter 15/lazy-customer-service/src/main/java/geektime/spring/springbucks/customer/controller/CustomerController.java
new file mode 100644
index 0000000..7fdff86
--- /dev/null
+++ b/Chapter 15/lazy-customer-service/src/main/java/geektime/spring/springbucks/customer/controller/CustomerController.java
@@ -0,0 +1,75 @@
+package geektime.spring.springbucks.customer.controller;
+
+import geektime.spring.springbucks.customer.integration.CoffeeOrderService;
+import geektime.spring.springbucks.customer.integration.CoffeeService;
+import geektime.spring.springbucks.customer.model.Coffee;
+import geektime.spring.springbucks.customer.model.CoffeeOrder;
+import geektime.spring.springbucks.customer.model.NewOrderRequest;
+import geektime.spring.springbucks.customer.model.OrderState;
+import geektime.spring.springbucks.customer.model.OrderStateRequest;
+import io.github.resilience4j.bulkhead.Bulkhead;
+import io.github.resilience4j.bulkhead.BulkheadFullException;
+import io.github.resilience4j.bulkhead.BulkheadRegistry;
+import io.github.resilience4j.circuitbreaker.CircuitBreaker;
+import io.github.resilience4j.circuitbreaker.CircuitBreakerOpenException;
+import io.github.resilience4j.circuitbreaker.CircuitBreakerRegistry;
+import io.vavr.control.Try;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+
+@RestController
+@RequestMapping("/customer")
+@Slf4j
+public class CustomerController {
+ @Autowired
+ private CoffeeService coffeeService;
+ @Autowired
+ private CoffeeOrderService coffeeOrderService;
+ @Value("${customer.name}")
+ private String customer;
+ private CircuitBreaker circuitBreaker;
+ private Bulkhead bulkhead;
+
+ public CustomerController(CircuitBreakerRegistry circuitBreakerRegistry,
+ BulkheadRegistry bulkheadRegistry) {
+ circuitBreaker = circuitBreakerRegistry.circuitBreaker("menu");
+ bulkhead = bulkheadRegistry.bulkhead("menu");
+ }
+
+ @GetMapping("/menu")
+ public List readMenu() {
+ return Try.ofSupplier(
+ Bulkhead.decorateSupplier(bulkhead,
+ CircuitBreaker.decorateSupplier(circuitBreaker,
+ () -> coffeeService.getAll())))
+ .recover(CircuitBreakerOpenException.class, Collections.emptyList())
+ .recover(BulkheadFullException.class, Collections.emptyList())
+ .get();
+ }
+
+ @PostMapping("/order")
+ @io.github.resilience4j.circuitbreaker.annotation.CircuitBreaker(name = "order")
+ @io.github.resilience4j.bulkhead.annotation.Bulkhead(name = "order")
+ public CoffeeOrder createAndPayOrder() {
+ NewOrderRequest orderRequest = NewOrderRequest.builder()
+ .customer(customer)
+ .items(Arrays.asList("capuccino"))
+ .build();
+ CoffeeOrder order = coffeeOrderService.create(orderRequest);
+ log.info("Create order: {}", order != null ? order.getId() : "-");
+ order = coffeeOrderService.updateState(order.getId(),
+ OrderStateRequest.builder().state(OrderState.PAID).build());
+ log.info("Order is PAID: {}", order);
+ return order;
+ }
+
+}
diff --git a/Chapter 15/lazy-customer-service/src/main/java/geektime/spring/springbucks/customer/integration/CoffeeOrderService.java b/Chapter 15/lazy-customer-service/src/main/java/geektime/spring/springbucks/customer/integration/CoffeeOrderService.java
new file mode 100644
index 0000000..f39787a
--- /dev/null
+++ b/Chapter 15/lazy-customer-service/src/main/java/geektime/spring/springbucks/customer/integration/CoffeeOrderService.java
@@ -0,0 +1,26 @@
+package geektime.spring.springbucks.customer.integration;
+
+import geektime.spring.springbucks.customer.model.CoffeeOrder;
+import geektime.spring.springbucks.customer.model.NewOrderRequest;
+import geektime.spring.springbucks.customer.model.OrderStateRequest;
+import org.springframework.cloud.openfeign.FeignClient;
+import org.springframework.http.MediaType;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.PutMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+
+@FeignClient(name = "waiter-service", contextId = "coffeeOrder")
+public interface CoffeeOrderService {
+ @GetMapping("/order/{id}")
+ CoffeeOrder getOrder(@PathVariable("id") Long id);
+
+ @PostMapping(path = "/order/", consumes = MediaType.APPLICATION_JSON_VALUE,
+ produces = MediaType.APPLICATION_JSON_UTF8_VALUE)
+ CoffeeOrder create(@RequestBody NewOrderRequest newOrder);
+
+ @PutMapping("/order/{id}")
+ CoffeeOrder updateState(@PathVariable("id") Long id,
+ @RequestBody OrderStateRequest orderState);
+}
diff --git a/Chapter 15/lazy-customer-service/src/main/java/geektime/spring/springbucks/customer/integration/CoffeeService.java b/Chapter 15/lazy-customer-service/src/main/java/geektime/spring/springbucks/customer/integration/CoffeeService.java
new file mode 100644
index 0000000..fada6a4
--- /dev/null
+++ b/Chapter 15/lazy-customer-service/src/main/java/geektime/spring/springbucks/customer/integration/CoffeeService.java
@@ -0,0 +1,21 @@
+package geektime.spring.springbucks.customer.integration;
+
+import geektime.spring.springbucks.customer.model.Coffee;
+import org.springframework.cloud.openfeign.FeignClient;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestParam;
+
+import java.util.List;
+
+@FeignClient(name = "waiter-service", contextId = "coffee", path = "/coffee")
+public interface CoffeeService {
+ @GetMapping(path = "/", params = "!name")
+ List getAll();
+
+ @GetMapping("/{id}")
+ Coffee getById(@PathVariable Long id);
+
+ @GetMapping(path = "/", params = "name")
+ Coffee getByName(@RequestParam String name);
+}
diff --git a/Chapter 15/lazy-customer-service/src/main/java/geektime/spring/springbucks/customer/integration/NotificationListener.java b/Chapter 15/lazy-customer-service/src/main/java/geektime/spring/springbucks/customer/integration/NotificationListener.java
new file mode 100644
index 0000000..1807144
--- /dev/null
+++ b/Chapter 15/lazy-customer-service/src/main/java/geektime/spring/springbucks/customer/integration/NotificationListener.java
@@ -0,0 +1,32 @@
+package geektime.spring.springbucks.customer.integration;
+
+import geektime.spring.springbucks.customer.model.CoffeeOrder;
+import geektime.spring.springbucks.customer.model.OrderState;
+import geektime.spring.springbucks.customer.model.OrderStateRequest;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.cloud.stream.annotation.StreamListener;
+import org.springframework.messaging.handler.annotation.Payload;
+import org.springframework.stereotype.Component;
+
+@Component
+@Slf4j
+public class NotificationListener {
+ @Autowired
+ private CoffeeOrderService orderService;
+ @Value("${customer.name}")
+ private String customer;
+
+ @StreamListener(Waiter.NOTIFY_ORDERS)
+ public void takeOrder(@Payload Long id) {
+ CoffeeOrder order = orderService.getOrder(id);
+ if (OrderState.BREWED == order.getState()) {
+ log.info("Order {} is READY, I'll take it.", id);
+ orderService.updateState(id,
+ OrderStateRequest.builder().state(OrderState.TAKEN).build());
+ } else {
+ log.warn("Order {} is NOT READY. Why are you notify me?", id);
+ }
+ }
+}
diff --git a/Chapter 15/lazy-customer-service/src/main/java/geektime/spring/springbucks/customer/integration/Waiter.java b/Chapter 15/lazy-customer-service/src/main/java/geektime/spring/springbucks/customer/integration/Waiter.java
new file mode 100644
index 0000000..c3c41f9
--- /dev/null
+++ b/Chapter 15/lazy-customer-service/src/main/java/geektime/spring/springbucks/customer/integration/Waiter.java
@@ -0,0 +1,11 @@
+package geektime.spring.springbucks.customer.integration;
+
+import org.springframework.cloud.stream.annotation.Input;
+import org.springframework.messaging.SubscribableChannel;
+
+public interface Waiter {
+ String NOTIFY_ORDERS = "notifyOrders";
+
+ @Input(NOTIFY_ORDERS)
+ SubscribableChannel notification();
+}
diff --git a/Chapter 15/lazy-customer-service/src/main/java/geektime/spring/springbucks/customer/model/Coffee.java b/Chapter 15/lazy-customer-service/src/main/java/geektime/spring/springbucks/customer/model/Coffee.java
new file mode 100644
index 0000000..9694e7d
--- /dev/null
+++ b/Chapter 15/lazy-customer-service/src/main/java/geektime/spring/springbucks/customer/model/Coffee.java
@@ -0,0 +1,22 @@
+package geektime.spring.springbucks.customer.model;
+
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+import org.joda.money.Money;
+
+import java.io.Serializable;
+import java.util.Date;
+
+@Data
+@Builder
+@NoArgsConstructor
+@AllArgsConstructor
+public class Coffee implements Serializable {
+ private Long id;
+ private String name;
+ private Money price;
+ private Date createTime;
+ private Date updateTime;
+}
diff --git a/Chapter 15/lazy-customer-service/src/main/java/geektime/spring/springbucks/customer/model/CoffeeOrder.java b/Chapter 15/lazy-customer-service/src/main/java/geektime/spring/springbucks/customer/model/CoffeeOrder.java
new file mode 100644
index 0000000..5b695eb
--- /dev/null
+++ b/Chapter 15/lazy-customer-service/src/main/java/geektime/spring/springbucks/customer/model/CoffeeOrder.java
@@ -0,0 +1,25 @@
+package geektime.spring.springbucks.customer.model;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+import org.joda.money.Money;
+
+import java.util.Date;
+import java.util.List;
+
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class CoffeeOrder {
+ private Long id;
+ private String customer;
+ private List items;
+ private OrderState state;
+ private String waiter;
+ private String barista;
+ private Integer discount;
+ private Money total;
+ private Date createTime;
+ private Date updateTime;
+}
diff --git a/Chapter 15/lazy-customer-service/src/main/java/geektime/spring/springbucks/customer/model/NewOrderRequest.java b/Chapter 15/lazy-customer-service/src/main/java/geektime/spring/springbucks/customer/model/NewOrderRequest.java
new file mode 100644
index 0000000..1507e3f
--- /dev/null
+++ b/Chapter 15/lazy-customer-service/src/main/java/geektime/spring/springbucks/customer/model/NewOrderRequest.java
@@ -0,0 +1,16 @@
+package geektime.spring.springbucks.customer.model;
+
+import lombok.Builder;
+import lombok.Getter;
+import lombok.Setter;
+import lombok.ToString;
+
+import java.util.List;
+
+@Builder
+@Getter
+@Setter
+public class NewOrderRequest {
+ private String customer;
+ private List items;
+}
diff --git a/Chapter 15/lazy-customer-service/src/main/java/geektime/spring/springbucks/customer/model/OrderState.java b/Chapter 15/lazy-customer-service/src/main/java/geektime/spring/springbucks/customer/model/OrderState.java
new file mode 100644
index 0000000..3362db1
--- /dev/null
+++ b/Chapter 15/lazy-customer-service/src/main/java/geektime/spring/springbucks/customer/model/OrderState.java
@@ -0,0 +1,5 @@
+package geektime.spring.springbucks.customer.model;
+
+public enum OrderState {
+ INIT, PAID, BREWING, BREWED, TAKEN, CANCELLED
+}
\ No newline at end of file
diff --git a/Chapter 15/lazy-customer-service/src/main/java/geektime/spring/springbucks/customer/model/OrderStateRequest.java b/Chapter 15/lazy-customer-service/src/main/java/geektime/spring/springbucks/customer/model/OrderStateRequest.java
new file mode 100644
index 0000000..44571d7
--- /dev/null
+++ b/Chapter 15/lazy-customer-service/src/main/java/geektime/spring/springbucks/customer/model/OrderStateRequest.java
@@ -0,0 +1,14 @@
+package geektime.spring.springbucks.customer.model;
+
+import lombok.Builder;
+import lombok.Getter;
+import lombok.Setter;
+import lombok.ToString;
+
+@Getter
+@Setter
+@ToString
+@Builder
+public class OrderStateRequest {
+ private OrderState state;
+}
diff --git a/Chapter 15/lazy-customer-service/src/main/java/geektime/spring/springbucks/customer/support/CustomConnectionKeepAliveStrategy.java b/Chapter 15/lazy-customer-service/src/main/java/geektime/spring/springbucks/customer/support/CustomConnectionKeepAliveStrategy.java
new file mode 100644
index 0000000..9894604
--- /dev/null
+++ b/Chapter 15/lazy-customer-service/src/main/java/geektime/spring/springbucks/customer/support/CustomConnectionKeepAliveStrategy.java
@@ -0,0 +1,25 @@
+package geektime.spring.springbucks.customer.support;
+
+import org.apache.commons.lang3.StringUtils;
+import org.apache.commons.lang3.math.NumberUtils;
+import org.apache.http.HttpResponse;
+import org.apache.http.conn.ConnectionKeepAliveStrategy;
+import org.apache.http.protocol.HTTP;
+import org.apache.http.protocol.HttpContext;
+
+import java.util.Arrays;
+
+public class CustomConnectionKeepAliveStrategy implements ConnectionKeepAliveStrategy {
+ private final long DEFAULT_SECONDS = 30;
+
+ @Override
+ public long getKeepAliveDuration(HttpResponse response, HttpContext context) {
+ return Arrays.asList(response.getHeaders(HTTP.CONN_KEEP_ALIVE))
+ .stream()
+ .filter(h -> StringUtils.equalsIgnoreCase(h.getName(), "timeout")
+ && StringUtils.isNumeric(h.getValue()))
+ .findFirst()
+ .map(h -> NumberUtils.toLong(h.getValue(), DEFAULT_SECONDS))
+ .orElse(DEFAULT_SECONDS) * 1000;
+ }
+}
diff --git a/Chapter 15/lazy-customer-service/src/main/java/geektime/spring/springbucks/customer/support/MoneyDeserializer.java b/Chapter 15/lazy-customer-service/src/main/java/geektime/spring/springbucks/customer/support/MoneyDeserializer.java
new file mode 100644
index 0000000..94bb620
--- /dev/null
+++ b/Chapter 15/lazy-customer-service/src/main/java/geektime/spring/springbucks/customer/support/MoneyDeserializer.java
@@ -0,0 +1,23 @@
+package geektime.spring.springbucks.customer.support;
+
+import com.fasterxml.jackson.core.JsonParser;
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.DeserializationContext;
+import com.fasterxml.jackson.databind.deser.std.StdDeserializer;
+import org.joda.money.CurrencyUnit;
+import org.joda.money.Money;
+import org.springframework.boot.jackson.JsonComponent;
+
+import java.io.IOException;
+
+@JsonComponent
+public class MoneyDeserializer extends StdDeserializer {
+ protected MoneyDeserializer() {
+ super(Money.class);
+ }
+
+ @Override
+ public Money deserialize(JsonParser p, DeserializationContext ctxt) throws IOException, JsonProcessingException {
+ return Money.of(CurrencyUnit.of("CNY"), p.getDecimalValue());
+ }
+}
diff --git a/Chapter 15/lazy-customer-service/src/main/java/geektime/spring/springbucks/customer/support/MoneySerializer.java b/Chapter 15/lazy-customer-service/src/main/java/geektime/spring/springbucks/customer/support/MoneySerializer.java
new file mode 100644
index 0000000..5757069
--- /dev/null
+++ b/Chapter 15/lazy-customer-service/src/main/java/geektime/spring/springbucks/customer/support/MoneySerializer.java
@@ -0,0 +1,21 @@
+package geektime.spring.springbucks.customer.support;
+
+import com.fasterxml.jackson.core.JsonGenerator;
+import com.fasterxml.jackson.databind.SerializerProvider;
+import com.fasterxml.jackson.databind.ser.std.StdSerializer;
+import org.joda.money.Money;
+import org.springframework.boot.jackson.JsonComponent;
+
+import java.io.IOException;
+
+@JsonComponent
+public class MoneySerializer extends StdSerializer {
+ protected MoneySerializer() {
+ super(Money.class);
+ }
+
+ @Override
+ public void serialize(Money money, JsonGenerator jsonGenerator, SerializerProvider serializerProvider) throws IOException {
+ jsonGenerator.writeNumber(money.getAmount());
+ }
+}
diff --git a/Chapter 15/lazy-customer-service/src/main/java/geektime/spring/springbucks/customer/support/OrderWaitingEvent.java b/Chapter 15/lazy-customer-service/src/main/java/geektime/spring/springbucks/customer/support/OrderWaitingEvent.java
new file mode 100644
index 0000000..f420107
--- /dev/null
+++ b/Chapter 15/lazy-customer-service/src/main/java/geektime/spring/springbucks/customer/support/OrderWaitingEvent.java
@@ -0,0 +1,15 @@
+package geektime.spring.springbucks.customer.support;
+
+import geektime.spring.springbucks.customer.model.CoffeeOrder;
+import lombok.Data;
+import org.springframework.context.ApplicationEvent;
+
+@Data
+public class OrderWaitingEvent extends ApplicationEvent {
+ private CoffeeOrder order;
+
+ public OrderWaitingEvent(CoffeeOrder order) {
+ super(order);
+ this.order = order;
+ }
+}
diff --git a/Chapter 15/lazy-customer-service/src/main/resources/application.properties b/Chapter 15/lazy-customer-service/src/main/resources/application.properties
new file mode 100644
index 0000000..461ce85
--- /dev/null
+++ b/Chapter 15/lazy-customer-service/src/main/resources/application.properties
@@ -0,0 +1,40 @@
+server.port=0
+
+customer.name=spring-${server.port}
+
+management.endpoints.web.exposure.include=*
+management.endpoint.health.show-details=always
+
+spring.output.ansi.enabled=ALWAYS
+
+feign.client.config.default.connect-timeout=500
+feign.client.config.default.read-timeout=500
+
+spring.cloud.consul.host=localhost
+spring.cloud.consul.port=8500
+spring.cloud.consul.discovery.prefer-ip-address=true
+
+resilience4j.circuitbreaker.backends.order.failure-rate-threshold=50
+resilience4j.circuitbreaker.backends.order.wait-duration-in-open-state=5000
+resilience4j.circuitbreaker.backends.order.ring-buffer-size-in-closed-state=5
+resilience4j.circuitbreaker.backends.order.ring-buffer-size-in-half-open-state=3
+resilience4j.circuitbreaker.backends.order.event-consumer-buffer-size=10
+
+resilience4j.circuitbreaker.backends.menu.failure-rate-threshold=50
+resilience4j.circuitbreaker.backends.menu.wait-duration-in-open-state=5000
+resilience4j.circuitbreaker.backends.menu.ring-buffer-size-in-closed-state=5
+resilience4j.circuitbreaker.backends.menu.ring-buffer-size-in-half-open-state=3
+resilience4j.circuitbreaker.backends.menu.event-consumer-buffer-size=10
+
+resilience4j.bulkhead.backends.order.max-concurrent-call=1
+resilience4j.bulkhead.backends.order.max-wait-time=5
+
+resilience4j.bulkhead.backends.menu.max-concurrent-call=5
+resilience4j.bulkhead.backends.menu.max-wait-time=5
+
+spring.rabbitmq.host=localhost
+spring.rabbitmq.port=5672
+spring.rabbitmq.username=spring
+spring.rabbitmq.password=spring
+
+spring.cloud.stream.rabbit.bindings.notifyOrders.consumer.binding-routing-key=${customer.name}
\ No newline at end of file
diff --git a/Chapter 15/lazy-customer-service/src/main/resources/bootstrap.properties b/Chapter 15/lazy-customer-service/src/main/resources/bootstrap.properties
new file mode 100644
index 0000000..33e53de
--- /dev/null
+++ b/Chapter 15/lazy-customer-service/src/main/resources/bootstrap.properties
@@ -0,0 +1 @@
+spring.application.name=customer-service
\ No newline at end of file
diff --git a/Chapter 15/lazy-customer-service/src/test/java/geektime/spring/springbucks/customer/CustomerServiceApplicationTests.java b/Chapter 15/lazy-customer-service/src/test/java/geektime/spring/springbucks/customer/CustomerServiceApplicationTests.java
new file mode 100644
index 0000000..2865cf1
--- /dev/null
+++ b/Chapter 15/lazy-customer-service/src/test/java/geektime/spring/springbucks/customer/CustomerServiceApplicationTests.java
@@ -0,0 +1,16 @@
+package geektime.spring.springbucks.customer;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest
+public class CustomerServiceApplicationTests {
+
+ @Test
+ public void contextLoads() {
+ }
+
+}
diff --git a/Chapter 15/rabbitmq-barista-service/.gitignore b/Chapter 15/rabbitmq-barista-service/.gitignore
new file mode 100644
index 0000000..153c933
--- /dev/null
+++ b/Chapter 15/rabbitmq-barista-service/.gitignore
@@ -0,0 +1,29 @@
+HELP.md
+/target/
+!.mvn/wrapper/maven-wrapper.jar
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+/build/
+
+### VS Code ###
+.vscode/
diff --git a/Chapter 15/rabbitmq-barista-service/pom.xml b/Chapter 15/rabbitmq-barista-service/pom.xml
new file mode 100644
index 0000000..7fd29ee
--- /dev/null
+++ b/Chapter 15/rabbitmq-barista-service/pom.xml
@@ -0,0 +1,83 @@
+
+
+ 4.0.0
+
+ org.springframework.boot
+ spring-boot-starter-parent
+ 2.1.4.RELEASE
+
+
+ geektime.spring.springbucks
+ barista-service
+ 0.0.1-SNAPSHOT
+ barista-service
+ Demo project for Spring Boot
+
+
+ 1.8
+ Greenwich.SR1
+
+
+
+
+ org.springframework.boot
+ spring-boot-starter-actuator
+
+
+ org.springframework.boot
+ spring-boot-starter-data-jpa
+
+
+ org.springframework.boot
+ spring-boot-starter-web
+
+
+ org.springframework.cloud
+ spring-cloud-stream-binder-rabbit
+
+
+
+ mysql
+ mysql-connector-java
+ runtime
+
+
+ org.projectlombok
+ lombok
+ true
+
+
+ org.springframework.boot
+ spring-boot-starter-test
+ test
+
+
+ org.springframework.cloud
+ spring-cloud-stream-test-support
+ test
+
+
+
+
+
+
+ org.springframework.cloud
+ spring-cloud-dependencies
+ ${spring-cloud.version}
+ pom
+ import
+
+
+
+
+
+
+
+ org.springframework.boot
+ spring-boot-maven-plugin
+
+
+
+
+
diff --git a/Chapter 15/rabbitmq-barista-service/src/main/java/geektime/spring/springbucks/barista/BaristaServiceApplication.java b/Chapter 15/rabbitmq-barista-service/src/main/java/geektime/spring/springbucks/barista/BaristaServiceApplication.java
new file mode 100644
index 0000000..eb48e6c
--- /dev/null
+++ b/Chapter 15/rabbitmq-barista-service/src/main/java/geektime/spring/springbucks/barista/BaristaServiceApplication.java
@@ -0,0 +1,18 @@
+package geektime.spring.springbucks.barista;
+
+import geektime.spring.springbucks.barista.integration.Waiter;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.cloud.stream.annotation.EnableBinding;
+import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
+
+@EnableJpaRepositories
+@SpringBootApplication
+@EnableBinding(Waiter.class)
+public class BaristaServiceApplication {
+
+ public static void main(String[] args) {
+ SpringApplication.run(BaristaServiceApplication.class, args);
+ }
+
+}
diff --git a/Chapter 15/rabbitmq-barista-service/src/main/java/geektime/spring/springbucks/barista/integration/OrderListener.java b/Chapter 15/rabbitmq-barista-service/src/main/java/geektime/spring/springbucks/barista/integration/OrderListener.java
new file mode 100644
index 0000000..bdfb212
--- /dev/null
+++ b/Chapter 15/rabbitmq-barista-service/src/main/java/geektime/spring/springbucks/barista/integration/OrderListener.java
@@ -0,0 +1,44 @@
+package geektime.spring.springbucks.barista.integration;
+
+import geektime.spring.springbucks.barista.model.CoffeeOrder;
+import geektime.spring.springbucks.barista.model.OrderState;
+import geektime.spring.springbucks.barista.repository.CoffeeOrderRepository;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Qualifier;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.cloud.stream.annotation.StreamListener;
+import org.springframework.messaging.MessageChannel;
+import org.springframework.messaging.support.MessageBuilder;
+import org.springframework.stereotype.Component;
+import org.springframework.transaction.annotation.Transactional;
+
+@Component
+@Slf4j
+@Transactional
+public class OrderListener {
+ @Autowired
+ private CoffeeOrderRepository orderRepository;
+ @Autowired
+ @Qualifier(Waiter.FINISHED_ORDERS)
+ private MessageChannel finishedOrdersMessageChannel;
+ @Value("${order.barista-prefix}${random.uuid}")
+ private String barista;
+
+ @StreamListener(Waiter.NEW_ORDERS)
+ public void processNewOrder(Long id) {
+ CoffeeOrder o = orderRepository.getOne(id);
+ if (o == null) {
+ log.warn("Order id {} is NOT valid.", id);
+ return;
+ }
+ log.info("Receive a new Order {}. Waiter: {}. Customer: {}",
+ id, o.getWaiter(), o.getCustomer());
+ o.setState(OrderState.BREWED);
+ o.setBarista(barista);
+ orderRepository.save(o);
+ log.info("Order {} is READY.", id);
+ finishedOrdersMessageChannel.send(MessageBuilder.withPayload(id).build());
+ }
+
+}
diff --git a/Chapter 15/rabbitmq-barista-service/src/main/java/geektime/spring/springbucks/barista/integration/Waiter.java b/Chapter 15/rabbitmq-barista-service/src/main/java/geektime/spring/springbucks/barista/integration/Waiter.java
new file mode 100644
index 0000000..4e5aea1
--- /dev/null
+++ b/Chapter 15/rabbitmq-barista-service/src/main/java/geektime/spring/springbucks/barista/integration/Waiter.java
@@ -0,0 +1,17 @@
+package geektime.spring.springbucks.barista.integration;
+
+import org.springframework.cloud.stream.annotation.Input;
+import org.springframework.cloud.stream.annotation.Output;
+import org.springframework.messaging.MessageChannel;
+import org.springframework.messaging.SubscribableChannel;
+
+public interface Waiter {
+ String NEW_ORDERS = "newOrders";
+ String FINISHED_ORDERS = "finishedOrders";
+
+ @Input(NEW_ORDERS)
+ SubscribableChannel newOrders();
+
+ @Output(FINISHED_ORDERS)
+ MessageChannel finishedOrders();
+}
diff --git a/Chapter 15/rabbitmq-barista-service/src/main/java/geektime/spring/springbucks/barista/model/CoffeeOrder.java b/Chapter 15/rabbitmq-barista-service/src/main/java/geektime/spring/springbucks/barista/model/CoffeeOrder.java
new file mode 100644
index 0000000..ec1141a
--- /dev/null
+++ b/Chapter 15/rabbitmq-barista-service/src/main/java/geektime/spring/springbucks/barista/model/CoffeeOrder.java
@@ -0,0 +1,38 @@
+package geektime.spring.springbucks.barista.model;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+import org.hibernate.annotations.CreationTimestamp;
+import org.hibernate.annotations.UpdateTimestamp;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.Enumerated;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.Table;
+import java.util.Date;
+
+@Entity
+@Table(name = "T_ORDER")
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class CoffeeOrder {
+ @Id
+ @GeneratedValue(strategy = GenerationType.IDENTITY)
+ private Long id;
+ private String customer;
+ private String waiter;
+ private String barista;
+ @Enumerated
+ @Column(nullable = false)
+ private OrderState state;
+ @Column(updatable = false)
+ @CreationTimestamp
+ private Date createTime;
+ @UpdateTimestamp
+ private Date updateTime;
+}
diff --git a/Chapter 15/rabbitmq-barista-service/src/main/java/geektime/spring/springbucks/barista/model/OrderState.java b/Chapter 15/rabbitmq-barista-service/src/main/java/geektime/spring/springbucks/barista/model/OrderState.java
new file mode 100644
index 0000000..73673d7
--- /dev/null
+++ b/Chapter 15/rabbitmq-barista-service/src/main/java/geektime/spring/springbucks/barista/model/OrderState.java
@@ -0,0 +1,5 @@
+package geektime.spring.springbucks.barista.model;
+
+public enum OrderState {
+ INIT, PAID, BREWING, BREWED, TAKEN, CANCELLED
+}
diff --git a/Chapter 15/rabbitmq-barista-service/src/main/java/geektime/spring/springbucks/barista/repository/CoffeeOrderRepository.java b/Chapter 15/rabbitmq-barista-service/src/main/java/geektime/spring/springbucks/barista/repository/CoffeeOrderRepository.java
new file mode 100644
index 0000000..b41647d
--- /dev/null
+++ b/Chapter 15/rabbitmq-barista-service/src/main/java/geektime/spring/springbucks/barista/repository/CoffeeOrderRepository.java
@@ -0,0 +1,7 @@
+package geektime.spring.springbucks.barista.repository;
+
+import geektime.spring.springbucks.barista.model.CoffeeOrder;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface CoffeeOrderRepository extends JpaRepository {
+}
diff --git a/Chapter 15/rabbitmq-barista-service/src/main/resources/application.properties b/Chapter 15/rabbitmq-barista-service/src/main/resources/application.properties
new file mode 100644
index 0000000..5eeb6e1
--- /dev/null
+++ b/Chapter 15/rabbitmq-barista-service/src/main/resources/application.properties
@@ -0,0 +1,25 @@
+spring.application.name=barista-service
+
+order.barista-prefix=springbucks-
+
+server.port=0
+
+spring.output.ansi.enabled=ALWAYS
+
+management.endpoints.web.exposure.include=*
+management.endpoint.health.show-details=always
+
+spring.jpa.hibernate.ddl-auto=none
+spring.jpa.properties.hibernate.show_sql=true
+spring.jpa.properties.hibernate.format_sql=true
+
+spring.datasource.url=jdbc:mysql://localhost/springbucks
+spring.datasource.username=springbucks
+spring.datasource.password=springbucks
+
+spring.rabbitmq.host=localhost
+spring.rabbitmq.port=5672
+spring.rabbitmq.username=spring
+spring.rabbitmq.password=spring
+
+spring.cloud.stream.bindings.newOrders.group=barista-service
\ No newline at end of file
diff --git a/Chapter 15/rabbitmq-barista-service/src/test/java/geektime/spring/springbucks/barista/BaristaServiceApplicationTests.java b/Chapter 15/rabbitmq-barista-service/src/test/java/geektime/spring/springbucks/barista/BaristaServiceApplicationTests.java
new file mode 100644
index 0000000..ab8a806
--- /dev/null
+++ b/Chapter 15/rabbitmq-barista-service/src/test/java/geektime/spring/springbucks/barista/BaristaServiceApplicationTests.java
@@ -0,0 +1,16 @@
+package geektime.spring.springbucks.barista;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest
+public class BaristaServiceApplicationTests {
+
+ @Test
+ public void contextLoads() {
+ }
+
+}
diff --git a/Chapter 15/rabbitmq-waiter-service/.gitignore b/Chapter 15/rabbitmq-waiter-service/.gitignore
new file mode 100644
index 0000000..ba5cb5c
--- /dev/null
+++ b/Chapter 15/rabbitmq-waiter-service/.gitignore
@@ -0,0 +1,26 @@
+HELP.md
+/target/
+!.mvn/wrapper/maven-wrapper.jar
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+/build/
diff --git a/Chapter 15/rabbitmq-waiter-service/pom.xml b/Chapter 15/rabbitmq-waiter-service/pom.xml
new file mode 100644
index 0000000..e759dca
--- /dev/null
+++ b/Chapter 15/rabbitmq-waiter-service/pom.xml
@@ -0,0 +1,125 @@
+
+
+ 4.0.0
+
+ org.springframework.boot
+ spring-boot-starter-parent
+ 2.1.4.RELEASE
+
+
+ geektime.spring.springbucks
+ waiter-service
+ 0.0.1-SNAPSHOT
+ waiter-service
+ Demo project for Spring Boot
+
+
+ 1.8
+ Greenwich.SR1
+
+
+
+
+ org.springframework.boot
+ spring-boot-starter-cache
+
+
+ org.springframework.boot
+ spring-boot-starter-data-jpa
+
+
+ org.springframework.boot
+ spring-boot-starter-web
+
+
+ org.springframework.boot
+ spring-boot-starter-actuator
+
+
+
+ org.springframework.cloud
+ spring-cloud-starter-consul-discovery
+
+
+ org.springframework.cloud
+ spring-cloud-starter-consul-config
+
+
+
+ org.springframework.cloud
+ spring-cloud-starter-stream-rabbit
+
+
+
+ io.github.resilience4j
+ resilience4j-spring-boot2
+ 0.14.1
+
+
+
+ io.micrometer
+ micrometer-registry-prometheus
+
+
+
+ org.joda
+ joda-money
+ 1.0.1
+
+
+ org.jadira.usertype
+ usertype.core
+ 6.0.1.GA
+
+
+
+ com.fasterxml.jackson.datatype
+ jackson-datatype-hibernate5
+ 2.9.8
+
+
+
+ org.apache.commons
+ commons-lang3
+
+
+
+ mysql
+ mysql-connector-java
+ runtime
+
+
+ org.projectlombok
+ lombok
+ true
+
+
+ org.springframework.boot
+ spring-boot-starter-test
+ test
+
+
+
+
+
+
+ org.springframework.cloud
+ spring-cloud-dependencies
+ ${spring-cloud.version}
+ pom
+ import
+
+
+
+
+
+
+
+ org.springframework.boot
+ spring-boot-maven-plugin
+
+
+
+
+
diff --git a/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/WaiterServiceApplication.java b/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/WaiterServiceApplication.java
new file mode 100644
index 0000000..a0450d6
--- /dev/null
+++ b/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/WaiterServiceApplication.java
@@ -0,0 +1,48 @@
+package geektime.spring.springbucks.waiter;
+
+import com.fasterxml.jackson.datatype.hibernate5.Hibernate5Module;
+import geektime.spring.springbucks.waiter.controller.PerformanceInteceptor;
+import geektime.spring.springbucks.waiter.integration.Barista;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.autoconfigure.jackson.Jackson2ObjectMapperBuilderCustomizer;
+import org.springframework.cache.annotation.EnableCaching;
+import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
+import org.springframework.cloud.stream.annotation.EnableBinding;
+import org.springframework.context.annotation.Bean;
+import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
+import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
+
+import java.util.TimeZone;
+
+@SpringBootApplication
+@EnableJpaRepositories
+@EnableCaching
+@EnableDiscoveryClient
+@EnableBinding(Barista.class)
+public class WaiterServiceApplication implements WebMvcConfigurer {
+
+ public static void main(String[] args) {
+ SpringApplication.run(WaiterServiceApplication.class, args);
+ }
+
+ @Override
+ public void addInterceptors(InterceptorRegistry registry) {
+ registry.addInterceptor(new PerformanceInteceptor())
+ .addPathPatterns("/coffee/**").addPathPatterns("/order/**");
+ }
+
+ @Bean
+ public Hibernate5Module hibernate5Module() {
+ return new Hibernate5Module();
+ }
+
+ @Bean
+ public Jackson2ObjectMapperBuilderCustomizer jacksonBuilderCustomizer() {
+ return builder -> {
+ builder.indentOutput(true);
+ builder.timeZone(TimeZone.getTimeZone("Asia/Shanghai"));
+ };
+ }
+}
diff --git a/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/CoffeeController.java b/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/CoffeeController.java
new file mode 100644
index 0000000..783ab1e
--- /dev/null
+++ b/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/CoffeeController.java
@@ -0,0 +1,96 @@
+package geektime.spring.springbucks.waiter.controller;
+
+import geektime.spring.springbucks.waiter.controller.request.NewCoffeeRequest;
+import geektime.spring.springbucks.waiter.model.Coffee;
+import geektime.spring.springbucks.waiter.service.CoffeeService;
+import io.github.resilience4j.ratelimiter.annotation.RateLimiter;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.commons.lang3.StringUtils;
+import org.apache.commons.lang3.math.NumberUtils;
+import org.apache.tomcat.util.http.fileupload.IOUtils;
+import org.joda.money.CurrencyUnit;
+import org.joda.money.Money;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.MediaType;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.ResponseStatus;
+import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.multipart.MultipartFile;
+
+import javax.validation.Valid;
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
+import java.util.List;
+
+@RestController
+@RequestMapping("/coffee")
+@RateLimiter(name = "coffee")
+@Slf4j
+public class CoffeeController {
+ @Autowired
+ private CoffeeService coffeeService;
+
+ @PostMapping(path = "/", consumes = MediaType.APPLICATION_FORM_URLENCODED_VALUE)
+ @ResponseStatus(HttpStatus.CREATED)
+ public Coffee addCoffeeWithoutBindingResult(@Valid NewCoffeeRequest newCoffee) {
+ return coffeeService.saveCoffee(newCoffee.getName(), newCoffee.getPrice());
+ }
+
+ @PostMapping(path = "/", consumes = MediaType.APPLICATION_JSON_UTF8_VALUE)
+ @ResponseStatus(HttpStatus.CREATED)
+ public Coffee addJsonCoffeeWithoutBindingResult(@Valid @RequestBody NewCoffeeRequest newCoffee) {
+ return coffeeService.saveCoffee(newCoffee.getName(), newCoffee.getPrice());
+ }
+
+ @PostMapping(path = "/", consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
+ @ResponseStatus(HttpStatus.CREATED)
+ public List batchAddCoffee(@RequestParam("file") MultipartFile file) {
+ List coffees = new ArrayList<>();
+ if (!file.isEmpty()) {
+ BufferedReader reader = null;
+ try {
+ reader = new BufferedReader(
+ new InputStreamReader(file.getInputStream()));
+ String str;
+ while ((str = reader.readLine()) != null) {
+ String[] arr = StringUtils.split(str, " ");
+ if (arr != null && arr.length == 2) {
+ coffees.add(coffeeService.saveCoffee(arr[0],
+ Money.of(CurrencyUnit.of("CNY"),
+ NumberUtils.createBigDecimal(arr[1]))));
+ }
+ }
+ } catch (IOException e) {
+ log.error("exception", e);
+ } finally {
+ IOUtils.closeQuietly(reader);
+ }
+ }
+ return coffees;
+ }
+
+ @GetMapping(path = "/", params = "!name")
+ public List getAll() {
+ return coffeeService.getAllCoffee();
+ }
+
+ @GetMapping("/{id}")
+ public Coffee getById(@PathVariable Long id) {
+ Coffee coffee = coffeeService.getCoffee(id);
+ log.info("Coffee {}:", coffee);
+ return coffee;
+ }
+
+ @GetMapping(path = "/", params = "name")
+ public Coffee getByName(@RequestParam String name) {
+ return coffeeService.getCoffee(name);
+ }
+}
diff --git a/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/CoffeeOrderController.java b/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/CoffeeOrderController.java
new file mode 100644
index 0000000..b57116d
--- /dev/null
+++ b/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/CoffeeOrderController.java
@@ -0,0 +1,70 @@
+package geektime.spring.springbucks.waiter.controller;
+
+import geektime.spring.springbucks.waiter.controller.request.NewOrderRequest;
+import geektime.spring.springbucks.waiter.controller.request.OrderStateRequest;
+import geektime.spring.springbucks.waiter.model.Coffee;
+import geektime.spring.springbucks.waiter.model.CoffeeOrder;
+import geektime.spring.springbucks.waiter.service.CoffeeOrderService;
+import geektime.spring.springbucks.waiter.service.CoffeeService;
+import io.github.resilience4j.ratelimiter.RateLimiter;
+import io.github.resilience4j.ratelimiter.RateLimiterRegistry;
+import io.github.resilience4j.ratelimiter.RequestNotPermitted;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.MediaType;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.PutMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.ResponseStatus;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/order")
+@Slf4j
+public class CoffeeOrderController {
+ @Autowired
+ private CoffeeOrderService orderService;
+ @Autowired
+ private CoffeeService coffeeService;
+ private RateLimiter rateLimiter;
+
+ public CoffeeOrderController(RateLimiterRegistry rateLimiterRegistry) {
+ rateLimiter = rateLimiterRegistry.rateLimiter("order");
+ }
+
+ @GetMapping("/{id}")
+ public CoffeeOrder getOrder(@PathVariable("id") Long id) {
+ CoffeeOrder order = null;
+ try {
+ order = rateLimiter.executeSupplier(() -> orderService.get(id));
+ log.info("Get Order: {}", order);
+ } catch(RequestNotPermitted e) {
+ log.warn("Request Not Permitted! {}", e.getMessage());
+ }
+ return order;
+ }
+
+ @PostMapping(path = "/", consumes = MediaType.APPLICATION_JSON_VALUE,
+ produces = MediaType.APPLICATION_JSON_UTF8_VALUE)
+ @ResponseStatus(HttpStatus.CREATED)
+ @io.github.resilience4j.ratelimiter.annotation.RateLimiter(name = "order")
+ public CoffeeOrder create(@RequestBody NewOrderRequest newOrder) {
+ log.info("Receive new Order {}", newOrder);
+ Coffee[] coffeeList = coffeeService.getCoffeeByName(newOrder.getItems())
+ .toArray(new Coffee[] {});
+ return orderService.createOrder(newOrder.getCustomer(), coffeeList);
+ }
+
+ @PutMapping("/{id}")
+ public CoffeeOrder updateState(@PathVariable("id") Long id,
+ @RequestBody OrderStateRequest orderState) {
+ log.info("Update order state: {}", orderState);
+ CoffeeOrder order = orderService.get(id);
+ orderService.updateState(order, orderState.getState());
+ return order;
+ }
+}
diff --git a/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/PerformanceInteceptor.java b/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/PerformanceInteceptor.java
new file mode 100644
index 0000000..9ab2e4d
--- /dev/null
+++ b/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/PerformanceInteceptor.java
@@ -0,0 +1,46 @@
+package geektime.spring.springbucks.waiter.controller;
+
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.util.StopWatch;
+import org.springframework.web.method.HandlerMethod;
+import org.springframework.web.servlet.HandlerInterceptor;
+import org.springframework.web.servlet.ModelAndView;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+@Slf4j
+public class PerformanceInteceptor implements HandlerInterceptor {
+ private ThreadLocal stopWatch = new ThreadLocal<>();
+
+ @Override
+ public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
+ StopWatch sw = new StopWatch();
+ stopWatch.set(sw);
+ sw.start();
+ return true;
+ }
+
+ @Override
+ public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
+ stopWatch.get().stop();
+ stopWatch.get().start();
+ }
+
+ @Override
+ public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
+ StopWatch sw = stopWatch.get();
+ sw.stop();
+ String method = handler.getClass().getSimpleName();
+ if (handler instanceof HandlerMethod) {
+ String beanType = ((HandlerMethod) handler).getBeanType().getName();
+ String methodName = ((HandlerMethod) handler).getMethod().getName();
+ method = beanType + "." + methodName;
+ }
+ log.info("{};{};{};{};{}ms;{}ms;{}ms", request.getRequestURI(), method,
+ response.getStatus(), ex == null ? "-" : ex.getClass().getSimpleName(),
+ sw.getTotalTimeMillis(), sw.getTotalTimeMillis() - sw.getLastTaskTimeMillis(),
+ sw.getLastTaskTimeMillis());
+ stopWatch.remove();
+ }
+}
diff --git a/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/request/NewCoffeeRequest.java b/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/request/NewCoffeeRequest.java
new file mode 100644
index 0000000..5d98011
--- /dev/null
+++ b/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/request/NewCoffeeRequest.java
@@ -0,0 +1,19 @@
+package geektime.spring.springbucks.waiter.controller.request;
+
+import lombok.Getter;
+import lombok.Setter;
+import lombok.ToString;
+import org.joda.money.Money;
+
+import javax.validation.constraints.NotEmpty;
+import javax.validation.constraints.NotNull;
+
+@Getter
+@Setter
+@ToString
+public class NewCoffeeRequest {
+ @NotEmpty
+ private String name;
+ @NotNull
+ private Money price;
+}
diff --git a/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/request/NewOrderRequest.java b/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/request/NewOrderRequest.java
new file mode 100644
index 0000000..53674ca
--- /dev/null
+++ b/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/request/NewOrderRequest.java
@@ -0,0 +1,15 @@
+package geektime.spring.springbucks.waiter.controller.request;
+
+import lombok.Getter;
+import lombok.Setter;
+import lombok.ToString;
+
+import java.util.List;
+
+@Getter
+@Setter
+@ToString
+public class NewOrderRequest {
+ private String customer;
+ private List items;
+}
diff --git a/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/request/OrderStateRequest.java b/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/request/OrderStateRequest.java
new file mode 100644
index 0000000..44e149f
--- /dev/null
+++ b/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/controller/request/OrderStateRequest.java
@@ -0,0 +1,13 @@
+package geektime.spring.springbucks.waiter.controller.request;
+
+import geektime.spring.springbucks.waiter.model.OrderState;
+import lombok.Getter;
+import lombok.Setter;
+import lombok.ToString;
+
+@Getter
+@Setter
+@ToString
+public class OrderStateRequest {
+ private OrderState state;
+}
diff --git a/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/integration/Barista.java b/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/integration/Barista.java
new file mode 100644
index 0000000..deca3e7
--- /dev/null
+++ b/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/integration/Barista.java
@@ -0,0 +1,17 @@
+package geektime.spring.springbucks.waiter.integration;
+
+import org.springframework.cloud.stream.annotation.Input;
+import org.springframework.cloud.stream.annotation.Output;
+import org.springframework.messaging.MessageChannel;
+import org.springframework.messaging.SubscribableChannel;
+
+public interface Barista {
+ String NEW_ORDERS = "newOrders";
+ String FINISHED_ORDERS = "finishedOrders";
+
+ @Input
+ SubscribableChannel finishedOrders();
+
+ @Output
+ MessageChannel newOrders();
+}
diff --git a/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/integration/OrderListener.java b/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/integration/OrderListener.java
new file mode 100644
index 0000000..bc60212
--- /dev/null
+++ b/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/integration/OrderListener.java
@@ -0,0 +1,14 @@
+package geektime.spring.springbucks.waiter.integration;
+
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.cloud.stream.annotation.StreamListener;
+import org.springframework.stereotype.Component;
+
+@Component
+@Slf4j
+public class OrderListener {
+ @StreamListener(Barista.FINISHED_ORDERS)
+ public void listenFinishedOrders(Long id) {
+ log.info("We've finished an order [{}].", id);
+ }
+}
diff --git a/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/model/BaseEntity.java b/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/model/BaseEntity.java
new file mode 100644
index 0000000..95cd49c
--- /dev/null
+++ b/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/model/BaseEntity.java
@@ -0,0 +1,32 @@
+package geektime.spring.springbucks.waiter.model;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+import org.hibernate.annotations.CreationTimestamp;
+import org.hibernate.annotations.UpdateTimestamp;
+
+import javax.persistence.Column;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.MappedSuperclass;
+import java.io.Serializable;
+import java.util.Date;
+
+@MappedSuperclass
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+// 增加了jackson-datatype-hibernate5就不需要这个Ignore了
+//@JsonIgnoreProperties(value = {"hibernateLazyInitializer"})
+public class BaseEntity implements Serializable {
+ @Id
+ @GeneratedValue(strategy = GenerationType.IDENTITY)
+ private Long id;
+ @Column(updatable = false)
+ @CreationTimestamp
+ private Date createTime;
+ @UpdateTimestamp
+ private Date updateTime;
+}
diff --git a/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/model/Coffee.java b/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/model/Coffee.java
new file mode 100644
index 0000000..1dc122b
--- /dev/null
+++ b/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/model/Coffee.java
@@ -0,0 +1,29 @@
+package geektime.spring.springbucks.waiter.model;
+
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import lombok.NoArgsConstructor;
+import lombok.ToString;
+import org.hibernate.annotations.Type;
+import org.joda.money.Money;
+
+import javax.persistence.Entity;
+import javax.persistence.Table;
+import java.io.Serializable;
+
+@Entity
+@Table(name = "T_COFFEE")
+@Builder
+@Data
+@EqualsAndHashCode(callSuper = true)
+@ToString(callSuper = true)
+@NoArgsConstructor
+@AllArgsConstructor
+public class Coffee extends BaseEntity implements Serializable {
+ private String name;
+ @Type(type = "org.jadira.usertype.moneyandcurrency.joda.PersistentMoneyMinorAmount",
+ parameters = {@org.hibernate.annotations.Parameter(name = "currencyCode", value = "CNY")})
+ private Money price;
+}
diff --git a/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/model/CoffeeOrder.java b/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/model/CoffeeOrder.java
new file mode 100644
index 0000000..11022df
--- /dev/null
+++ b/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/model/CoffeeOrder.java
@@ -0,0 +1,45 @@
+package geektime.spring.springbucks.waiter.model;
+
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import lombok.NoArgsConstructor;
+import lombok.ToString;
+import org.hibernate.annotations.Type;
+import org.joda.money.Money;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.Enumerated;
+import javax.persistence.JoinTable;
+import javax.persistence.ManyToMany;
+import javax.persistence.OrderBy;
+import javax.persistence.Table;
+import java.io.Serializable;
+import java.util.List;
+
+@Entity
+@Table(name = "T_ORDER")
+@Data
+@EqualsAndHashCode(callSuper = true)
+@ToString(callSuper = true)
+@NoArgsConstructor
+@AllArgsConstructor
+@Builder
+public class CoffeeOrder extends BaseEntity implements Serializable {
+ private String customer;
+ @ManyToMany
+ @JoinTable(name = "T_ORDER_COFFEE")
+ @OrderBy("id")
+ private List items;
+ @Enumerated
+ @Column(nullable = false)
+ private OrderState state;
+ private Integer discount;
+ @Type(type = "org.jadira.usertype.moneyandcurrency.joda.PersistentMoneyMinorAmount",
+ parameters = {@org.hibernate.annotations.Parameter(name = "currencyCode", value = "CNY")})
+ private Money total;
+ private String waiter;
+ private String barista;
+}
diff --git a/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/model/OrderState.java b/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/model/OrderState.java
new file mode 100644
index 0000000..cbc6383
--- /dev/null
+++ b/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/model/OrderState.java
@@ -0,0 +1,5 @@
+package geektime.spring.springbucks.waiter.model;
+
+public enum OrderState {
+ INIT, PAID, BREWING, BREWED, TAKEN, CANCELLED
+}
diff --git a/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/repository/CoffeeOrderRepository.java b/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/repository/CoffeeOrderRepository.java
new file mode 100644
index 0000000..20b3cf1
--- /dev/null
+++ b/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/repository/CoffeeOrderRepository.java
@@ -0,0 +1,7 @@
+package geektime.spring.springbucks.waiter.repository;
+
+import geektime.spring.springbucks.waiter.model.CoffeeOrder;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface CoffeeOrderRepository extends JpaRepository {
+}
diff --git a/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/repository/CoffeeRepository.java b/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/repository/CoffeeRepository.java
new file mode 100644
index 0000000..6f60a2e
--- /dev/null
+++ b/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/repository/CoffeeRepository.java
@@ -0,0 +1,11 @@
+package geektime.spring.springbucks.waiter.repository;
+
+import geektime.spring.springbucks.waiter.model.Coffee;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+import java.util.List;
+
+public interface CoffeeRepository extends JpaRepository {
+ List findByNameInOrderById(List list);
+ Coffee findByName(String name);
+}
diff --git a/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/service/CoffeeOrderService.java b/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/service/CoffeeOrderService.java
new file mode 100644
index 0000000..fa4a847
--- /dev/null
+++ b/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/service/CoffeeOrderService.java
@@ -0,0 +1,92 @@
+package geektime.spring.springbucks.waiter.service;
+
+import geektime.spring.springbucks.waiter.integration.Barista;
+import geektime.spring.springbucks.waiter.model.Coffee;
+import geektime.spring.springbucks.waiter.model.CoffeeOrder;
+import geektime.spring.springbucks.waiter.model.OrderState;
+import geektime.spring.springbucks.waiter.repository.CoffeeOrderRepository;
+import geektime.spring.springbucks.waiter.support.OrderProperties;
+import io.micrometer.core.instrument.Counter;
+import io.micrometer.core.instrument.MeterRegistry;
+import io.micrometer.core.instrument.binder.MeterBinder;
+import lombok.extern.slf4j.Slf4j;
+import org.joda.money.Money;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.messaging.support.MessageBuilder;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.math.RoundingMode;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.UUID;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+@Service
+@Transactional
+@Slf4j
+public class CoffeeOrderService implements MeterBinder {
+ @Autowired
+ private CoffeeOrderRepository orderRepository;
+ @Autowired
+ private OrderProperties orderProperties;
+ @Autowired
+ private Barista barista;
+
+ private String waiterId = UUID.randomUUID().toString();
+
+ private Counter orderCounter = null;
+
+ public CoffeeOrder get(Long id) {
+ return orderRepository.getOne(id);
+ }
+
+ public CoffeeOrder createOrder(String customer, Coffee...coffee) {
+ CoffeeOrder order = CoffeeOrder.builder()
+ .customer(customer)
+ .items(new ArrayList<>(Arrays.asList(coffee)))
+ .discount(orderProperties.getDiscount())
+ .total(calcTotal(coffee))
+ .state(OrderState.INIT)
+ .waiter(orderProperties.getWaiterPrefix() + waiterId)
+ .build();
+ CoffeeOrder saved = orderRepository.save(order);
+ log.info("New Order: {}", saved);
+ orderCounter.increment();
+ return saved;
+ }
+
+ public boolean updateState(CoffeeOrder order, OrderState state) {
+ if (order == null) {
+ log.warn("Can not find order.");
+ return false;
+ }
+ if (state.compareTo(order.getState()) <= 0) {
+ log.warn("Wrong State order: {}, {}", state, order.getState());
+ return false;
+ }
+ order.setState(state);
+ orderRepository.save(order);
+ log.info("Updated Order: {}", order);
+ if (state == OrderState.PAID) {
+ // 有返回值，如果要关注发送结果，则判断返回值
+ // 一般消息体不会这么简单
+ barista.newOrders().send(MessageBuilder.withPayload(order.getId()).build());
+ }
+ return true;
+ }
+
+ @Override
+ public void bindTo(MeterRegistry meterRegistry) {
+ this.orderCounter = meterRegistry.counter("order.count");
+ }
+
+ private Money calcTotal(Coffee...coffee) {
+ List items = Stream.of(coffee).map(c -> c.getPrice())
+ .collect(Collectors.toList());
+ return Money.total(items).multipliedBy(orderProperties.getDiscount())
+ .dividedBy(100, RoundingMode.HALF_UP);
+ }
+}
diff --git a/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/service/CoffeeService.java b/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/service/CoffeeService.java
new file mode 100644
index 0000000..a7642f7
--- /dev/null
+++ b/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/service/CoffeeService.java
@@ -0,0 +1,50 @@
+package geektime.spring.springbucks.waiter.service;
+
+import geektime.spring.springbucks.waiter.model.Coffee;
+import geektime.spring.springbucks.waiter.repository.CoffeeRepository;
+import lombok.extern.slf4j.Slf4j;
+import org.joda.money.Money;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.cache.annotation.CacheConfig;
+import org.springframework.cache.annotation.Cacheable;
+import org.springframework.data.domain.Example;
+import org.springframework.data.domain.Sort;
+import org.springframework.stereotype.Service;
+
+import java.util.Arrays;
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+
+@Service
+@Slf4j
+@CacheConfig(cacheNames = "CoffeeCache")
+public class CoffeeService {
+ @Autowired
+ private CoffeeRepository coffeeRepository;
+
+ public Coffee saveCoffee(String name, Money price) {
+ return coffeeRepository.save(Coffee.builder().name(name).price(price).build());
+ }
+
+ @Cacheable
+ public List getAllCoffee() {
+ return coffeeRepository.findAll(Sort.by("id"));
+ }
+
+ public Coffee getCoffee(Long id) {
+ return coffeeRepository.getOne(id);
+ }
+
+ public long getCoffeeCount() {
+ return coffeeRepository.count();
+ }
+
+ public Coffee getCoffee(String name) {
+ return coffeeRepository.findByName(name);
+ }
+
+ public List getCoffeeByName(List names) {
+ return coffeeRepository.findByNameInOrderById(names);
+ }
+}
diff --git a/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/support/CoffeeIndicator.java b/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/support/CoffeeIndicator.java
new file mode 100644
index 0000000..ee2e69b
--- /dev/null
+++ b/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/support/CoffeeIndicator.java
@@ -0,0 +1,31 @@
+package geektime.spring.springbucks.waiter.support;
+
+import geektime.spring.springbucks.waiter.service.CoffeeService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.actuate.health.Health;
+import org.springframework.boot.actuate.health.HealthIndicator;
+import org.springframework.stereotype.Component;
+
+@Component
+public class CoffeeIndicator implements HealthIndicator {
+ @Autowired
+ private CoffeeService coffeeService;
+
+ @Override
+ public Health health() {
+ long count = coffeeService.getCoffeeCount();
+ Health health;
+ if (count > 0) {
+ health = Health.up()
+ .withDetail("count", count)
+ .withDetail("message", "We have enough coffee.")
+ .build();
+ } else {
+ health = Health.down()
+ .withDetail("count", 0)
+ .withDetail("message", "We are out of coffee.")
+ .build();
+ }
+ return health;
+ }
+}
diff --git a/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/support/MoneyDeserializer.java b/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/support/MoneyDeserializer.java
new file mode 100644
index 0000000..30a9ebc
--- /dev/null
+++ b/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/support/MoneyDeserializer.java
@@ -0,0 +1,23 @@
+package geektime.spring.springbucks.waiter.support;
+
+import com.fasterxml.jackson.core.JsonParser;
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.DeserializationContext;
+import com.fasterxml.jackson.databind.deser.std.StdDeserializer;
+import org.joda.money.CurrencyUnit;
+import org.joda.money.Money;
+import org.springframework.boot.jackson.JsonComponent;
+
+import java.io.IOException;
+
+@JsonComponent
+public class MoneyDeserializer extends StdDeserializer {
+ protected MoneyDeserializer() {
+ super(Money.class);
+ }
+
+ @Override
+ public Money deserialize(JsonParser p, DeserializationContext ctxt) throws IOException, JsonProcessingException {
+ return Money.of(CurrencyUnit.of("CNY"), p.getDecimalValue());
+ }
+}
diff --git a/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/support/MoneyFormatter.java b/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/support/MoneyFormatter.java
new file mode 100644
index 0000000..1d0c712
--- /dev/null
+++ b/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/support/MoneyFormatter.java
@@ -0,0 +1,42 @@
+package geektime.spring.springbucks.waiter.support;
+
+import org.apache.commons.lang3.StringUtils;
+import org.apache.commons.lang3.math.NumberUtils;
+import org.joda.money.CurrencyUnit;
+import org.joda.money.Money;
+import org.springframework.format.Formatter;
+import org.springframework.stereotype.Component;
+
+import java.text.ParseException;
+import java.util.Locale;
+
+@Component
+public class MoneyFormatter implements Formatter {
+ /**
+ * 处理 CNY 10.00 / 10.00 形式的字符串
+ * 校验不太严密，仅作演示
+ */
+ @Override
+ public Money parse(String text, Locale locale) throws ParseException {
+ if (NumberUtils.isParsable(text)) {
+ return Money.of(CurrencyUnit.of("CNY"), NumberUtils.createBigDecimal(text));
+ } else if (StringUtils.isNotEmpty(text)) {
+ String[] split = StringUtils.split(text, " ");
+ if (split != null && split.length == 2 && NumberUtils.isParsable(split[1])) {
+ return Money.of(CurrencyUnit.of(split[0]),
+ NumberUtils.createBigDecimal(split[1]));
+ } else {
+ throw new ParseException(text, 0);
+ }
+ }
+ throw new ParseException(text, 0);
+ }
+
+ @Override
+ public String print(Money money, Locale locale) {
+ if (money == null) {
+ return null;
+ }
+ return money.getCurrencyUnit().getCode() + " " + money.getAmount();
+ }
+}
diff --git a/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/support/MoneySerializer.java b/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/support/MoneySerializer.java
new file mode 100644
index 0000000..463666d
--- /dev/null
+++ b/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/support/MoneySerializer.java
@@ -0,0 +1,21 @@
+package geektime.spring.springbucks.waiter.support;
+
+import com.fasterxml.jackson.core.JsonGenerator;
+import com.fasterxml.jackson.databind.SerializerProvider;
+import com.fasterxml.jackson.databind.ser.std.StdSerializer;
+import org.joda.money.Money;
+import org.springframework.boot.jackson.JsonComponent;
+
+import java.io.IOException;
+
+@JsonComponent
+public class MoneySerializer extends StdSerializer {
+ protected MoneySerializer() {
+ super(Money.class);
+ }
+
+ @Override
+ public void serialize(Money money, JsonGenerator jsonGenerator, SerializerProvider serializerProvider) throws IOException {
+ jsonGenerator.writeNumber(money.getAmount());
+ }
+}
diff --git a/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/support/OrderProperties.java b/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/support/OrderProperties.java
new file mode 100644
index 0000000..c840c3f
--- /dev/null
+++ b/Chapter 15/rabbitmq-waiter-service/src/main/java/geektime/spring/springbucks/waiter/support/OrderProperties.java
@@ -0,0 +1,15 @@
+package geektime.spring.springbucks.waiter.support;
+
+import lombok.Data;
+import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.cloud.context.config.annotation.RefreshScope;
+import org.springframework.stereotype.Component;
+
+@ConfigurationProperties("order")
+@RefreshScope
+@Data
+@Component
+public class OrderProperties {
+ private Integer discount = 100;
+ private String waiterPrefix = "springbucks-";
+}
diff --git a/Chapter 15/rabbitmq-waiter-service/src/main/resources/application.properties b/Chapter 15/rabbitmq-waiter-service/src/main/resources/application.properties
new file mode 100644
index 0000000..34082da
--- /dev/null
+++ b/Chapter 15/rabbitmq-waiter-service/src/main/resources/application.properties
@@ -0,0 +1,39 @@
+spring.jpa.hibernate.ddl-auto=none
+spring.jpa.properties.hibernate.show_sql=false
+spring.jpa.properties.hibernate.format_sql=false
+
+# 运行过一次后，如果不想清空数据库就注释掉下面这行
+spring.datasource.initialization-mode=always
+
+management.endpoints.web.exposure.include=*
+management.endpoint.health.show-details=always
+
+info.app.author=DigitalSonic
+info.app.encoding=@project.build.sourceEncoding@
+
+server.port=8080
+
+spring.datasource.url=jdbc:mysql://localhost/springbucks
+spring.datasource.username=springbucks
+spring.datasource.password=springbucks
+
+order.discount=95
+
+resilience4j.ratelimiter.limiters.coffee.limit-for-period=5
+resilience4j.ratelimiter.limiters.coffee.limit-refresh-period-in-millis=30000
+resilience4j.ratelimiter.limiters.coffee.timeout-in-millis=5000
+resilience4j.ratelimiter.limiters.coffee.subscribe-for-events=true
+resilience4j.ratelimiter.limiters.coffee.register-health-indicator=true
+
+resilience4j.ratelimiter.limiters.order.limit-for-period=3
+resilience4j.ratelimiter.limiters.order.limit-refresh-period-in-millis=30000
+resilience4j.ratelimiter.limiters.order.timeout-in-millis=1000
+resilience4j.ratelimiter.limiters.order.subscribe-for-events=true
+resilience4j.ratelimiter.limiters.order.register-health-indicator=true
+
+spring.rabbitmq.host=localhost
+spring.rabbitmq.port=5672
+spring.rabbitmq.username=spring
+spring.rabbitmq.password=spring
+
+spring.cloud.stream.bindings.finishedOrders.group=waiter-service
diff --git a/Chapter 15/rabbitmq-waiter-service/src/main/resources/bootstrap.properties b/Chapter 15/rabbitmq-waiter-service/src/main/resources/bootstrap.properties
new file mode 100644
index 0000000..5536bb1
--- /dev/null
+++ b/Chapter 15/rabbitmq-waiter-service/src/main/resources/bootstrap.properties
@@ -0,0 +1,8 @@
+spring.application.name=waiter-service
+
+spring.cloud.consul.host=localhost
+spring.cloud.consul.port=8500
+spring.cloud.consul.discovery.prefer-ip-address=true
+
+spring.cloud.consul.config.enabled=true
+spring.cloud.consul.config.format=yaml
\ No newline at end of file
diff --git a/Chapter 15/rabbitmq-waiter-service/src/main/resources/coffee.txt b/Chapter 15/rabbitmq-waiter-service/src/main/resources/coffee.txt
new file mode 100644
index 0000000..00f81c3
--- /dev/null
+++ b/Chapter 15/rabbitmq-waiter-service/src/main/resources/coffee.txt
@@ -0,0 +1,2 @@
+Americano 25.0
+Italian 30.0
\ No newline at end of file
diff --git a/Chapter 15/rabbitmq-waiter-service/src/main/resources/data.sql b/Chapter 15/rabbitmq-waiter-service/src/main/resources/data.sql
new file mode 100644
index 0000000..929682f
--- /dev/null
+++ b/Chapter 15/rabbitmq-waiter-service/src/main/resources/data.sql
@@ -0,0 +1,5 @@
+insert into t_coffee (name, price, create_time, update_time) values ('espresso', 2000, now(), now());
+insert into t_coffee (name, price, create_time, update_time) values ('latte', 2500, now(), now());
+insert into t_coffee (name, price, create_time, update_time) values ('capuccino', 2500, now(), now());
+insert into t_coffee (name, price, create_time, update_time) values ('mocha', 3000, now(), now());
+insert into t_coffee (name, price, create_time, update_time) values ('macchiato', 3000, now(), now());
diff --git a/Chapter 15/rabbitmq-waiter-service/src/main/resources/schema.sql b/Chapter 15/rabbitmq-waiter-service/src/main/resources/schema.sql
new file mode 100644
index 0000000..31e937b
--- /dev/null
+++ b/Chapter 15/rabbitmq-waiter-service/src/main/resources/schema.sql
@@ -0,0 +1,33 @@
+# 注意 MySQL 与 H2 的语法差异
+# H2: drop table tbl if exists;
+# MySQL: drop table if exists tbl;
+drop table if exists t_coffee;
+drop table if exists t_order;
+drop table if exists t_order_coffee;
+
+create table t_coffee (
+ id bigint auto_increment,
+ create_time timestamp,
+ update_time timestamp,
+ name varchar(255),
+ price bigint,
+ primary key (id)
+);
+
+create table t_order (
+ id bigint auto_increment,
+ create_time timestamp,
+ update_time timestamp,
+ customer varchar(255),
+ waiter varchar(255),
+ barista varchar(255),
+ discount integer,
+ total bigint,
+ state integer,
+ primary key (id)
+);
+
+create table t_order_coffee (
+ coffee_order_id bigint not null,
+ items_id bigint not null
+);
diff --git a/Chapter 15/rabbitmq-waiter-service/src/test/java/geektime/spring/springbucks/waiter/WaiterServiceApplicationTests.java b/Chapter 15/rabbitmq-waiter-service/src/test/java/geektime/spring/springbucks/waiter/WaiterServiceApplicationTests.java
new file mode 100644
index 0000000..209b785
--- /dev/null
+++ b/Chapter 15/rabbitmq-waiter-service/src/test/java/geektime/spring/springbucks/waiter/WaiterServiceApplicationTests.java
@@ -0,0 +1,16 @@
+package geektime.spring.springbucks.waiter;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest
+public class WaiterServiceApplicationTests {
+
+ @Test
+ public void contextLoads() {
+ }
+
+}
diff --git a/Chapter 15/scheduled-customer-service/.gitignore b/Chapter 15/scheduled-customer-service/.gitignore
new file mode 100644
index 0000000..ba5cb5c
--- /dev/null
+++ b/Chapter 15/scheduled-customer-service/.gitignore
@@ -0,0 +1,26 @@
+HELP.md
+/target/
+!.mvn/wrapper/maven-wrapper.jar
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+/build/
diff --git a/Chapter 15/scheduled-customer-service/pom.xml b/Chapter 15/scheduled-customer-service/pom.xml
new file mode 100644
index 0000000..721c86f
--- /dev/null
+++ b/Chapter 15/scheduled-customer-service/pom.xml
@@ -0,0 +1,100 @@
+
+
+ 4.0.0
+
+ org.springframework.boot
+ spring-boot-starter-parent
+ 2.1.4.RELEASE
+
+
+ geektime.spring.springbucks
+ customer-service
+ 0.0.1-SNAPSHOT
+ customer-service
+ Demo project for Spring Boot
+
+
+ 1.8
+ Greenwich.SR1
+
+
+
+
+ io.github.resilience4j
+ resilience4j-spring-boot2
+ 0.14.1
+
+
+
+ org.springframework.boot
+ spring-boot-starter-web
+
+
+ org.springframework.boot
+ spring-boot-starter-actuator
+
+
+ org.springframework.cloud
+ spring-cloud-starter-consul-discovery
+
+
+ org.springframework.cloud
+ spring-cloud-starter-openfeign
+
+
+ io.github.openfeign
+ feign-httpclient
+
+
+
+ org.joda
+ joda-money
+ 1.0.1
+
+
+
+ org.apache.commons
+ commons-lang3
+
+
+
+ org.apache.httpcomponents
+ httpclient
+ 4.5.7
+
+
+
+ org.projectlombok
+ lombok
+ true
+
+
+ org.springframework.boot
+ spring-boot-starter-test
+ test
+
+
+
+
+
+
+ org.springframework.cloud
+ spring-cloud-dependencies
+ ${spring-cloud.version}
+ pom
+ import
+
+
+
+
+
+
+
+ org.springframework.boot
+ spring-boot-maven-plugin
+
+
+
+
+
diff --git a/Chapter 15/scheduled-customer-service/src/main/java/geektime/spring/springbucks/customer/CustomerServiceApplication.java b/Chapter 15/scheduled-customer-service/src/main/java/geektime/spring/springbucks/customer/CustomerServiceApplication.java
new file mode 100644
index 0000000..0ca1bc7
--- /dev/null
+++ b/Chapter 15/scheduled-customer-service/src/main/java/geektime/spring/springbucks/customer/CustomerServiceApplication.java
@@ -0,0 +1,40 @@
+package geektime.spring.springbucks.customer;
+
+import geektime.spring.springbucks.customer.support.CustomConnectionKeepAliveStrategy;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.http.impl.client.CloseableHttpClient;
+import org.apache.http.impl.client.HttpClients;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
+import org.springframework.cloud.openfeign.EnableFeignClients;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.EnableAspectJAutoProxy;
+import org.springframework.scheduling.annotation.EnableScheduling;
+
+import java.util.concurrent.TimeUnit;
+
+@SpringBootApplication
+@Slf4j
+@EnableDiscoveryClient
+@EnableFeignClients
+@EnableAspectJAutoProxy
+@EnableScheduling
+public class CustomerServiceApplication {
+
+ public static void main(String[] args) {
+ SpringApplication.run(CustomerServiceApplication.class, args);
+ }
+
+ @Bean
+ public CloseableHttpClient httpClient() {
+ return HttpClients.custom()
+ .setConnectionTimeToLive(30, TimeUnit.SECONDS)
+ .evictIdleConnections(30, TimeUnit.SECONDS)
+ .setMaxConnTotal(200)
+ .setMaxConnPerRoute(20)
+ .disableAutomaticRetries()
+ .setKeepAliveStrategy(new CustomConnectionKeepAliveStrategy())
+ .build();
+ }
+}
diff --git a/Chapter 15/scheduled-customer-service/src/main/java/geektime/spring/springbucks/customer/controller/CustomerController.java b/Chapter 15/scheduled-customer-service/src/main/java/geektime/spring/springbucks/customer/controller/CustomerController.java
new file mode 100644
index 0000000..c6f650c
--- /dev/null
+++ b/Chapter 15/scheduled-customer-service/src/main/java/geektime/spring/springbucks/customer/controller/CustomerController.java
@@ -0,0 +1,81 @@
+package geektime.spring.springbucks.customer.controller;
+
+import geektime.spring.springbucks.customer.integration.CoffeeOrderService;
+import geektime.spring.springbucks.customer.integration.CoffeeService;
+import geektime.spring.springbucks.customer.model.Coffee;
+import geektime.spring.springbucks.customer.model.CoffeeOrder;
+import geektime.spring.springbucks.customer.model.NewOrderRequest;
+import geektime.spring.springbucks.customer.model.OrderState;
+import geektime.spring.springbucks.customer.model.OrderStateRequest;
+import geektime.spring.springbucks.customer.support.OrderWaitingEvent;
+import io.github.resilience4j.bulkhead.Bulkhead;
+import io.github.resilience4j.bulkhead.BulkheadFullException;
+import io.github.resilience4j.bulkhead.BulkheadRegistry;
+import io.github.resilience4j.circuitbreaker.CircuitBreaker;
+import io.github.resilience4j.circuitbreaker.CircuitBreakerOpenException;
+import io.github.resilience4j.circuitbreaker.CircuitBreakerRegistry;
+import io.vavr.control.Try;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.ApplicationEventPublisher;
+import org.springframework.context.ApplicationEventPublisherAware;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+
+@RestController
+@RequestMapping("/customer")
+@Slf4j
+public class CustomerController implements ApplicationEventPublisherAware {
+ @Autowired
+ private CoffeeService coffeeService;
+ @Autowired
+ private CoffeeOrderService coffeeOrderService;
+ private CircuitBreaker circuitBreaker;
+ private Bulkhead bulkhead;
+ private ApplicationEventPublisher applicationEventPublisher;
+
+ public CustomerController(CircuitBreakerRegistry circuitBreakerRegistry,
+ BulkheadRegistry bulkheadRegistry) {
+ circuitBreaker = circuitBreakerRegistry.circuitBreaker("menu");
+ bulkhead = bulkheadRegistry.bulkhead("menu");
+ }
+
+ @GetMapping("/menu")
+ public List readMenu() {
+ return Try.ofSupplier(
+ Bulkhead.decorateSupplier(bulkhead,
+ CircuitBreaker.decorateSupplier(circuitBreaker,
+ () -> coffeeService.getAll())))
+ .recover(CircuitBreakerOpenException.class, Collections.emptyList())
+ .recover(BulkheadFullException.class, Collections.emptyList())
+ .get();
+ }
+
+ @PostMapping("/order")
+ @io.github.resilience4j.circuitbreaker.annotation.CircuitBreaker(name = "order")
+ @io.github.resilience4j.bulkhead.annotation.Bulkhead(name = "order")
+ public CoffeeOrder createAndPayOrder() {
+ NewOrderRequest orderRequest = NewOrderRequest.builder()
+ .customer("Li Lei")
+ .items(Arrays.asList("capuccino"))
+ .build();
+ CoffeeOrder order = coffeeOrderService.create(orderRequest);
+ log.info("Create order: {}", order != null ? order.getId() : "-");
+ order = coffeeOrderService.updateState(order.getId(),
+ OrderStateRequest.builder().state(OrderState.PAID).build());
+ log.info("Order is PAID: {}", order);
+ applicationEventPublisher.publishEvent(new OrderWaitingEvent(order));
+ return order;
+ }
+
+ @Override
+ public void setApplicationEventPublisher(ApplicationEventPublisher applicationEventPublisher) {
+ this.applicationEventPublisher = applicationEventPublisher;
+ }
+}
diff --git a/Chapter 15/scheduled-customer-service/src/main/java/geektime/spring/springbucks/customer/integration/CoffeeOrderService.java b/Chapter 15/scheduled-customer-service/src/main/java/geektime/spring/springbucks/customer/integration/CoffeeOrderService.java
new file mode 100644
index 0000000..f39787a
--- /dev/null
+++ b/Chapter 15/scheduled-customer-service/src/main/java/geektime/spring/springbucks/customer/integration/CoffeeOrderService.java
@@ -0,0 +1,26 @@
+package geektime.spring.springbucks.customer.integration;
+
+import geektime.spring.springbucks.customer.model.CoffeeOrder;
+import geektime.spring.springbucks.customer.model.NewOrderRequest;
+import geektime.spring.springbucks.customer.model.OrderStateRequest;
+import org.springframework.cloud.openfeign.FeignClient;
+import org.springframework.http.MediaType;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.PutMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+
+@FeignClient(name = "waiter-service", contextId = "coffeeOrder")
+public interface CoffeeOrderService {
+ @GetMapping("/order/{id}")
+ CoffeeOrder getOrder(@PathVariable("id") Long id);
+
+ @PostMapping(path = "/order/", consumes = MediaType.APPLICATION_JSON_VALUE,
+ produces = MediaType.APPLICATION_JSON_UTF8_VALUE)
+ CoffeeOrder create(@RequestBody NewOrderRequest newOrder);
+
+ @PutMapping("/order/{id}")
+ CoffeeOrder updateState(@PathVariable("id") Long id,
+ @RequestBody OrderStateRequest orderState);
+}
diff --git a/Chapter 15/scheduled-customer-service/src/main/java/geektime/spring/springbucks/customer/integration/CoffeeService.java b/Chapter 15/scheduled-customer-service/src/main/java/geektime/spring/springbucks/customer/integration/CoffeeService.java
new file mode 100644
index 0000000..fada6a4
--- /dev/null
+++ b/Chapter 15/scheduled-customer-service/src/main/java/geektime/spring/springbucks/customer/integration/CoffeeService.java
@@ -0,0 +1,21 @@
+package geektime.spring.springbucks.customer.integration;
+
+import geektime.spring.springbucks.customer.model.Coffee;
+import org.springframework.cloud.openfeign.FeignClient;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestParam;
+
+import java.util.List;
+
+@FeignClient(name = "waiter-service", contextId = "coffee", path = "/coffee")
+public interface CoffeeService {
+ @GetMapping(path = "/", params = "!name")
+ List getAll();
+
+ @GetMapping("/{id}")
+ Coffee getById(@PathVariable Long id);
+
+ @GetMapping(path = "/", params = "name")
+ Coffee getByName(@RequestParam String name);
+}
diff --git a/Chapter 15/scheduled-customer-service/src/main/java/geektime/spring/springbucks/customer/model/Coffee.java b/Chapter 15/scheduled-customer-service/src/main/java/geektime/spring/springbucks/customer/model/Coffee.java
new file mode 100644
index 0000000..9694e7d
--- /dev/null
+++ b/Chapter 15/scheduled-customer-service/src/main/java/geektime/spring/springbucks/customer/model/Coffee.java
@@ -0,0 +1,22 @@
+package geektime.spring.springbucks.customer.model;
+
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+import org.joda.money.Money;
+
+import java.io.Serializable;
+import java.util.Date;
+
+@Data
+@Builder
+@NoArgsConstructor
+@AllArgsConstructor
+public class Coffee implements Serializable {
+ private Long id;
+ private String name;
+ private Money price;
+ private Date createTime;
+ private Date updateTime;
+}
diff --git a/Chapter 15/scheduled-customer-service/src/main/java/geektime/spring/springbucks/customer/model/CoffeeOrder.java b/Chapter 15/scheduled-customer-service/src/main/java/geektime/spring/springbucks/customer/model/CoffeeOrder.java
new file mode 100644
index 0000000..e3bcc19
--- /dev/null
+++ b/Chapter 15/scheduled-customer-service/src/main/java/geektime/spring/springbucks/customer/model/CoffeeOrder.java
@@ -0,0 +1,20 @@
+package geektime.spring.springbucks.customer.model;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import java.util.Date;
+import java.util.List;
+
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class CoffeeOrder {
+ private Long id;
+ private String customer;
+ private List items;
+ private OrderState state;
+ private Date createTime;
+ private Date updateTime;
+}
diff --git a/Chapter 15/scheduled-customer-service/src/main/java/geektime/spring/springbucks/customer/model/NewOrderRequest.java b/Chapter 15/scheduled-customer-service/src/main/java/geektime/spring/springbucks/customer/model/NewOrderRequest.java
new file mode 100644
index 0000000..1507e3f
--- /dev/null
+++ b/Chapter 15/scheduled-customer-service/src/main/java/geektime/spring/springbucks/customer/model/NewOrderRequest.java
@@ -0,0 +1,16 @@
+package geektime.spring.springbucks.customer.model;
+
+import lombok.Builder;
+import lombok.Getter;
+import lombok.Setter;
+import lombok.ToString;
+
+import java.util.List;
+
+@Builder
+@Getter
+@Setter
+public class NewOrderRequest {
+ private String customer;
+ private List items;
+}
diff --git a/Chapter 15/scheduled-customer-service/src/main/java/geektime/spring/springbucks/customer/model/OrderState.java b/Chapter 15/scheduled-customer-service/src/main/java/geektime/spring/springbucks/customer/model/OrderState.java
new file mode 100644
index 0000000..3362db1
--- /dev/null
+++ b/Chapter 15/scheduled-customer-service/src/main/java/geektime/spring/springbucks/customer/model/OrderState.java
@@ -0,0 +1,5 @@
+package geektime.spring.springbucks.customer.model;
+
+public enum OrderState {
+ INIT, PAID, BREWING, BREWED, TAKEN, CANCELLED
+}
\ No newline at end of file
diff --git a/Chapter 15/scheduled-customer-service/src/main/java/geektime/spring/springbucks/customer/model/OrderStateRequest.java b/Chapter 15/scheduled-customer-service/src/main/java/geektime/spring/springbucks/customer/model/OrderStateRequest.java
new file mode 100644
index 0000000..44571d7
--- /dev/null
+++ b/Chapter 15/scheduled-customer-service/src/main/java/geektime/spring/springbucks/customer/model/OrderStateRequest.java
@@ -0,0 +1,14 @@
+package geektime.spring.springbucks.customer.model;
+
+import lombok.Builder;
+import lombok.Getter;
+import lombok.Setter;
+import lombok.ToString;
+
+@Getter
+@Setter
+@ToString
+@Builder
+public class OrderStateRequest {
+ private OrderState state;
+}
diff --git a/Chapter 15/scheduled-customer-service/src/main/java/geektime/spring/springbucks/customer/scheduler/CoffeeOrderScheduler.java b/Chapter 15/scheduled-customer-service/src/main/java/geektime/spring/springbucks/customer/scheduler/CoffeeOrderScheduler.java
new file mode 100644
index 0000000..756a778
--- /dev/null
+++ b/Chapter 15/scheduled-customer-service/src/main/java/geektime/spring/springbucks/customer/scheduler/CoffeeOrderScheduler.java
@@ -0,0 +1,46 @@
+package geektime.spring.springbucks.customer.scheduler;
+
+import geektime.spring.springbucks.customer.integration.CoffeeOrderService;
+import geektime.spring.springbucks.customer.model.CoffeeOrder;
+import geektime.spring.springbucks.customer.model.OrderState;
+import geektime.spring.springbucks.customer.model.OrderStateRequest;
+import geektime.spring.springbucks.customer.support.OrderWaitingEvent;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.event.EventListener;
+import org.springframework.scheduling.annotation.Scheduled;
+import org.springframework.stereotype.Component;
+
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+@Component
+@Slf4j
+public class CoffeeOrderScheduler {
+ @Autowired
+ private CoffeeOrderService coffeeOrderService;
+ private Map orderMap = new ConcurrentHashMap<>();
+
+ @EventListener
+ public void acceptOrder(OrderWaitingEvent event) {
+ orderMap.put(event.getOrder().getId(), event.getOrder());
+ }
+
+ @Scheduled(fixedRate = 1000)
+ public void waitForCoffee() {
+ if (orderMap.isEmpty()) {
+ return;
+ }
+ log.info("I'm waiting for my coffee.");
+ orderMap.values().stream()
+ .map(o -> coffeeOrderService.getOrder(o.getId()))
+ .filter(o -> OrderState.BREWED == o.getState())
+ .forEach(o -> {
+ log.info("Order [{}] is READY, I'll take it.", o);
+ coffeeOrderService.updateState(o.getId(),
+ OrderStateRequest.builder()
+ .state(OrderState.TAKEN).build());
+ orderMap.remove(o.getId());
+ });
+ }
+}
diff --git a/Chapter 15/scheduled-customer-service/src/main/java/geektime/spring/springbucks/customer/support/CustomConnectionKeepAliveStrategy.java b/Chapter 15/scheduled-customer-service/src/main/java/geektime/spring/springbucks/customer/support/CustomConnectionKeepAliveStrategy.java
new file mode 100644
index 0000000..9894604
--- /dev/null
+++ b/Chapter 15/scheduled-customer-service/src/main/java/geektime/spring/springbucks/customer/support/CustomConnectionKeepAliveStrategy.java
@@ -0,0 +1,25 @@
+package geektime.spring.springbucks.customer.support;
+
+import org.apache.commons.lang3.StringUtils;
+import org.apache.commons.lang3.math.NumberUtils;
+import org.apache.http.HttpResponse;
+import org.apache.http.conn.ConnectionKeepAliveStrategy;
+import org.apache.http.protocol.HTTP;
+import org.apache.http.protocol.HttpContext;
+
+import java.util.Arrays;
+
+public class CustomConnectionKeepAliveStrategy implements ConnectionKeepAliveStrategy {
+ private final long DEFAULT_SECONDS = 30;
+
+ @Override
+ public long getKeepAliveDuration(HttpResponse response, HttpContext context) {
+ return Arrays.asList(response.getHeaders(HTTP.CONN_KEEP_ALIVE))
+ .stream()
+ .filter(h -> StringUtils.equalsIgnoreCase(h.getName(), "timeout")
+ && StringUtils.isNumeric(h.getValue()))
+ .findFirst()
+ .map(h -> NumberUtils.toLong(h.getValue(), DEFAULT_SECONDS))
+ .orElse(DEFAULT_SECONDS) * 1000;
+ }
+}
diff --git a/Chapter 15/scheduled-customer-service/src/main/java/geektime/spring/springbucks/customer/support/MoneyDeserializer.java b/Chapter 15/scheduled-customer-service/src/main/java/geektime/spring/springbucks/customer/support/MoneyDeserializer.java
new file mode 100644
index 0000000..94bb620
--- /dev/null
+++ b/Chapter 15/scheduled-customer-service/src/main/java/geektime/spring/springbucks/customer/support/MoneyDeserializer.java
@@ -0,0 +1,23 @@
+package geektime.spring.springbucks.customer.support;
+
+import com.fasterxml.jackson.core.JsonParser;
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.DeserializationContext;
+import com.fasterxml.jackson.databind.deser.std.StdDeserializer;
+import org.joda.money.CurrencyUnit;
+import org.joda.money.Money;
+import org.springframework.boot.jackson.JsonComponent;
+
+import java.io.IOException;
+
+@JsonComponent
+public class MoneyDeserializer extends StdDeserializer {
+ protected MoneyDeserializer() {
+ super(Money.class);
+ }
+
+ @Override
+ public Money deserialize(JsonParser p, DeserializationContext ctxt) throws IOException, JsonProcessingException {
+ return Money.of(CurrencyUnit.of("CNY"), p.getDecimalValue());
+ }
+}
diff --git a/Chapter 15/scheduled-customer-service/src/main/java/geektime/spring/springbucks/customer/support/MoneySerializer.java b/Chapter 15/scheduled-customer-service/src/main/java/geektime/spring/springbucks/customer/support/MoneySerializer.java
new file mode 100644
index 0000000..5757069
--- /dev/null
+++ b/Chapter 15/scheduled-customer-service/src/main/java/geektime/spring/springbucks/customer/support/MoneySerializer.java
@@ -0,0 +1,21 @@
+package geektime.spring.springbucks.customer.support;
+
+import com.fasterxml.jackson.core.JsonGenerator;
+import com.fasterxml.jackson.databind.SerializerProvider;
+import com.fasterxml.jackson.databind.ser.std.StdSerializer;
+import org.joda.money.Money;
+import org.springframework.boot.jackson.JsonComponent;
+
+import java.io.IOException;
+
+@JsonComponent
+public class MoneySerializer extends StdSerializer {
+ protected MoneySerializer() {
+ super(Money.class);
+ }
+
+ @Override
+ public void serialize(Money money, JsonGenerator jsonGenerator, SerializerProvider serializerProvider) throws IOException {
+ jsonGenerator.writeNumber(money.getAmount());
+ }
+}
diff --git a/Chapter 15/scheduled-customer-service/src/main/java/geektime/spring/springbucks/customer/support/OrderWaitingEvent.java b/Chapter 15/scheduled-customer-service/src/main/java/geektime/spring/springbucks/customer/support/OrderWaitingEvent.java
new file mode 100644
index 0000000..f420107
--- /dev/null
+++ b/Chapter 15/scheduled-customer-service/src/main/java/geektime/spring/springbucks/customer/support/OrderWaitingEvent.java
@@ -0,0 +1,15 @@
+package geektime.spring.springbucks.customer.support;
+
+import geektime.spring.springbucks.customer.model.CoffeeOrder;
+import lombok.Data;
+import org.springframework.context.ApplicationEvent;
+
+@Data
+public class OrderWaitingEvent extends ApplicationEvent {
+ private CoffeeOrder order;
+
+ public OrderWaitingEvent(CoffeeOrder order) {
+ super(order);
+ this.order = order;
+ }
+}
diff --git a/Chapter 15/scheduled-customer-service/src/main/resources/application.properties b/Chapter 15/scheduled-customer-service/src/main/resources/application.properties
new file mode 100644
index 0000000..3d74b4c
--- /dev/null
+++ b/Chapter 15/scheduled-customer-service/src/main/resources/application.properties
@@ -0,0 +1,29 @@
+server.port=8090
+
+management.endpoints.web.exposure.include=*
+management.endpoint.health.show-details=always
+
+feign.client.config.default.connect-timeout=500
+feign.client.config.default.read-timeout=500
+
+spring.cloud.consul.host=localhost
+spring.cloud.consul.port=8500
+spring.cloud.consul.discovery.prefer-ip-address=true
+
+resilience4j.circuitbreaker.backends.order.failure-rate-threshold=50
+resilience4j.circuitbreaker.backends.order.wait-duration-in-open-state=5000
+resilience4j.circuitbreaker.backends.order.ring-buffer-size-in-closed-state=5
+resilience4j.circuitbreaker.backends.order.ring-buffer-size-in-half-open-state=3
+resilience4j.circuitbreaker.backends.order.event-consumer-buffer-size=10
+
+resilience4j.circuitbreaker.backends.menu.failure-rate-threshold=50
+resilience4j.circuitbreaker.backends.menu.wait-duration-in-open-state=5000
+resilience4j.circuitbreaker.backends.menu.ring-buffer-size-in-closed-state=5
+resilience4j.circuitbreaker.backends.menu.ring-buffer-size-in-half-open-state=3
+resilience4j.circuitbreaker.backends.menu.event-consumer-buffer-size=10
+
+resilience4j.bulkhead.backends.order.max-concurrent-call=1
+resilience4j.bulkhead.backends.order.max-wait-time=5
+
+resilience4j.bulkhead.backends.menu.max-concurrent-call=5
+resilience4j.bulkhead.backends.menu.max-wait-time=5
\ No newline at end of file
diff --git a/Chapter 15/scheduled-customer-service/src/main/resources/bootstrap.properties b/Chapter 15/scheduled-customer-service/src/main/resources/bootstrap.properties
new file mode 100644
index 0000000..33e53de
--- /dev/null
+++ b/Chapter 15/scheduled-customer-service/src/main/resources/bootstrap.properties
@@ -0,0 +1 @@
+spring.application.name=customer-service
\ No newline at end of file
diff --git a/Chapter 15/scheduled-customer-service/src/test/java/geektime/spring/springbucks/customer/CustomerServiceApplicationTests.java b/Chapter 15/scheduled-customer-service/src/test/java/geektime/spring/springbucks/customer/CustomerServiceApplicationTests.java
new file mode 100644
index 0000000..2865cf1
--- /dev/null
+++ b/Chapter 15/scheduled-customer-service/src/test/java/geektime/spring/springbucks/customer/CustomerServiceApplicationTests.java
@@ -0,0 +1,16 @@
+package geektime.spring.springbucks.customer;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest
+public class CustomerServiceApplicationTests {
+
+ @Test
+ public void contextLoads() {
+ }
+
+}