Assignment springframeworkguru#5 Customer

Author: rmisteli

pom.xml

@@ -27,6 +27,10 @@
             <artifactId>lombok</artifactId>
             <optional>true</optional>
         </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-devtools</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-test</artifactId>

src/main/java/guru/springframework/spring6restmvc/controller/BeerController.java

@@ -4,7 +4,9 @@
 import guru.springframework.spring6restmvc.service.BeerService;
 import lombok.AllArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
+import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
 import org.springframework.web.bind.annotation.RestController;
 
 import java.util.List;
@@ -13,18 +15,20 @@
 @Slf4j
 @AllArgsConstructor
 @RestController
+@RequestMapping("/api/v1/beer")
 public class BeerController {
 
     private final BeerService beerService;
 
-    @RequestMapping("/api/v1/beer")
+    @RequestMapping(method = RequestMethod.GET)
     public List<Beer> listBeers() {
         return beerService.listBeers();
     }
 
-    public Beer getBeerById(UUID id) {
+    @RequestMapping(value = "{beerId}", method = RequestMethod.GET)
+    public Beer getBeerById(@PathVariable("beerId") UUID beerId) {
         log.debug("getBeerById() called in Controller");
-        return beerService.getBeerById(id);
+        return beerService.getBeerById(beerId);
     }
 
 }

src/main/java/guru/springframework/spring6restmvc/controller/CustomerController.java

@@ -0,0 +1,34 @@
+package guru.springframework.spring6restmvc.controller;
+
+import guru.springframework.spring6restmvc.model.Beer;
+import guru.springframework.spring6restmvc.model.Customer;
+import guru.springframework.spring6restmvc.service.CustomerService;
+import lombok.AllArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.List;
+import java.util.UUID;
+
+@Slf4j
+@AllArgsConstructor
+@RestController
+@RequestMapping("/api/v1/customer")
+public class CustomerController {
+
+    private final CustomerService customerService;
+
+    @RequestMapping(method = RequestMethod.GET)
+    public List<Customer> listCustomers() {
+        return customerService.getAllCustomers();
+    }
+
+    @RequestMapping(value = "{customerId}", method = RequestMethod.GET)
+    public Customer getCustomerById(@PathVariable("customerId") UUID customerId) {
+        return customerService.getCustomerById(customerId);
+    }
+
+}

src/main/java/guru/springframework/spring6restmvc/model/Customer.java

@@ -0,0 +1,17 @@
+package guru.springframework.spring6restmvc.model;
+
+import lombok.Builder;
+import lombok.Data;
+
+import java.time.LocalDateTime;
+import java.util.UUID;
+
+@Data
+@Builder
+public class Customer {
+    private UUID id;
+    private Integer version;
+    private String name;
+    private LocalDateTime createdDate;
+    private LocalDateTime updateDate;
+}

src/main/java/guru/springframework/spring6restmvc/service/CustomerService.java

@@ -0,0 +1,10 @@
+package guru.springframework.spring6restmvc.service;
+
+import guru.springframework.spring6restmvc.model.Customer;
+
+import java.util.List;
+import java.util.UUID;
+public interface CustomerService {
+    Customer getCustomerById(UUID id);
+    List<Customer> getAllCustomers();
+}

src/main/java/guru/springframework/spring6restmvc/service/CustomerServiceImpl.java

@@ -0,0 +1,55 @@
+package guru.springframework.spring6restmvc.service;
+
+import guru.springframework.spring6restmvc.model.Customer;
+import org.springframework.stereotype.Service;
+
+import java.time.LocalDateTime;
+import java.util.*;
+
+@Service
+public class CustomerServiceImpl implements CustomerService {
+
+    private Map<UUID, Customer> customerMap;
+
+    public CustomerServiceImpl() {
+        customerMap = new HashMap<>();
+
+        Customer customer1 = Customer.builder()
+                .id(UUID.randomUUID())
+                .version(1)
+                .name("Customer 1")
+                .createdDate(LocalDateTime.now())
+                .updateDate(LocalDateTime.now())
+                .build();
+
+        Customer customer2 = Customer.builder()
+                .id(UUID.randomUUID())
+                .version(1)
+                .name("Customer 2")
+                .createdDate(LocalDateTime.now())
+                .updateDate(LocalDateTime.now())
+                .build();
+
+        Customer customer3 = Customer.builder()
+                .id(UUID.randomUUID())
+                .version(1)
+                .name("Customer 3")
+                .createdDate(LocalDateTime.now())
+                .updateDate(LocalDateTime.now())
+                .build();
+
+        customerMap.put(customer1.getId(), customer1);
+        customerMap.put(customer2.getId(), customer2);
+        customerMap.put(customer3.getId(), customer3);
+    }
+
+    @Override
+    public Customer getCustomerById(UUID id) {
+        return customerMap.get(id);
+    }
+
+    @Override
+    public List<Customer> getAllCustomers() {
+        return new ArrayList<>(customerMap.values());
+    }
+}