MVC REST #59

Author: rmisteli

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

@@ -0,0 +1,30 @@
+package guru.springframework.spring6restmvc.controller;
+
+import guru.springframework.spring6restmvc.model.Beer;
+import guru.springframework.spring6restmvc.service.BeerService;
+import lombok.AllArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.List;
+import java.util.UUID;
+
+@Slf4j
+@AllArgsConstructor
+@RestController
+public class BeerController {
+
+    private final BeerService beerService;
+
+    @RequestMapping("/api/v1/beer")
+    public List<Beer> listBeers() {
+        return beerService.listBeers();
+    }
+
+    public Beer getBeerById(UUID id) {
+        log.debug("getBeerById() called in Controller");
+        return beerService.getBeerById(id);
+    }
+
+}

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

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+package guru.springframework.spring6restmvc.model;
+
+import lombok.Builder;
+import lombok.Data;
+
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+import java.util.UUID;
+
+@Builder
+@Data
+public class Beer {
+    private UUID id;
+    private Integer version;
+    private String beerName;
+    private BeerStyle beerStyle;
+    private String upc;
+    private Integer quantityOnHand;
+    private BigDecimal price;
+    private LocalDateTime createdDate;
+    private LocalDateTime updateDate;
+}

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

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+package guru.springframework.spring6restmvc.model;
+
+public enum BeerStyle {
+    PALE_ALE,
+    LAGER,
+    ALE,
+    PILS,
+    IPA
+}

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

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+package guru.springframework.spring6restmvc.service;
+
+import guru.springframework.spring6restmvc.model.Beer;
+
+import java.util.List;
+import java.util.UUID;
+
+public interface BeerService {
+    List<Beer> listBeers();
+
+    Beer getBeerById(UUID id);
+}

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

@@ -0,0 +1,74 @@
+package guru.springframework.spring6restmvc.service;
+
+import guru.springframework.spring6restmvc.model.Beer;
+import guru.springframework.spring6restmvc.model.BeerStyle;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.stereotype.Service;
+
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+import java.util.*;
+
+@Slf4j
+@Service
+public class BeerServiceImpl implements BeerService {
+
+    private Map<UUID, Beer> beerMap;
+
+    public BeerServiceImpl() {
+        this.beerMap = new HashMap<>();
+
+        Beer beer1 = Beer.builder()
+                .id(UUID.randomUUID())
+                .version(1)
+                .beerName("Galaxy Cat")
+                .beerStyle(BeerStyle.PALE_ALE)
+                .upc("12345")
+                .price(new BigDecimal("12.99"))
+                .quantityOnHand(122)
+                .createdDate(LocalDateTime.now())
+                .updateDate(LocalDateTime.now())
+                .build();
+
+        Beer beer2 = Beer.builder()
+                .id(UUID.randomUUID())
+                .version(1)
+                .beerName("Crank")
+                .beerStyle(BeerStyle.IPA)
+                .upc("12547")
+                .price(new BigDecimal("11.99"))
+                .quantityOnHand(392)
+                .createdDate(LocalDateTime.now())
+                .updateDate(LocalDateTime.now())
+                .build();
+
+        Beer beer3 = Beer.builder()
+                .id(UUID.randomUUID())
+                .version(1)
+                .beerName("Sunshine City")
+                .beerStyle(BeerStyle.PILS)
+                .upc("12547")
+                .price(new BigDecimal("9.99"))
+                .quantityOnHand(524)
+                .createdDate(LocalDateTime.now())
+                .updateDate(LocalDateTime.now())
+                .build();
+
+        beerMap.put(beer1.getId(), beer1);
+        beerMap.put(beer2.getId(), beer2);
+        beerMap.put(beer3.getId(), beer3);
+    }
+
+    @Override
+    public List<Beer> listBeers() {
+        return new ArrayList<>(beerMap.values());
+    }
+
+    @Override
+    public Beer getBeerById(UUID id) {
+
+        log.debug("getBeerById in BeerService was called");
+
+        return beerMap.get(id);
+    }
+}

src/main/resources/application.properties

@@ -1 +1,2 @@
 
+logging.level.guru.springframework=debug

src/test/java/guru/springframework/spring6restmvc/controller/BeerControllerTest.java

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+package guru.springframework.spring6restmvc.controller;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+
+import java.util.UUID;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+@SpringBootTest
+class BeerControllerTest {
+
+    @Autowired
+    BeerController beerController;
+
+    @Test
+    void getBeerByID() {
+
+        System.out.println(beerController.getBeerById(UUID.randomUUID()));
+
+    }
+}