Add Pet REST controller

src/main/java/org/springframework/samples/petclinic/rest/PetRestController.java

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+/*
+ * Copyright 2016 the original author or authors.
+ *
+ * Licensed 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
+ *
+ *      http://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.
+ */
+
+package org.springframework.samples.petclinic.rest;
+
+import java.util.Collection;
+
+import javax.validation.Valid;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
+import org.springframework.samples.petclinic.model.Pet;
+import org.springframework.samples.petclinic.model.PetType;
+import org.springframework.samples.petclinic.service.ClinicService;
+import org.springframework.validation.BindingResult;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.util.UriComponentsBuilder;
+
+/**
+ * @author Vitaliy Fedoriv
+ *
+ */
+
+@RestController
+@RequestMapping("api/pets")
+public class PetRestController {
+	
+	@Autowired
+	private ClinicService clinicService;
+	
+	@RequestMapping(value = "/{petId}", method = RequestMethod.GET, produces = MediaType.APPLICATION_JSON_UTF8_VALUE)
+	public ResponseEntity<Pet> getPet(@PathVariable("petId") int petId){
+		Pet pet = this.clinicService.findPetById(petId);
+		if(pet == null){
+			return new ResponseEntity<Pet>(HttpStatus.NOT_FOUND);
+		}
+		return new ResponseEntity<Pet>(pet, HttpStatus.OK);
+	}
+	
+	@RequestMapping(value = "/pettypes}", method = RequestMethod.GET, produces = MediaType.APPLICATION_JSON_UTF8_VALUE)
+	public ResponseEntity<Collection<PetType>> getPetTypes(){
+		return new ResponseEntity<Collection<PetType>>(this.clinicService.findPetTypes(), HttpStatus.OK);
+	}
+	
+	@RequestMapping(value = "/", method = RequestMethod.POST, produces = MediaType.APPLICATION_JSON_UTF8_VALUE)
+	public ResponseEntity<Void> addPet(@RequestBody @Valid Pet pet, BindingResult bindingResult, UriComponentsBuilder ucBuilder){
+		if(bindingResult.hasErrors() || (pet == null)){
+			return new ResponseEntity<Void>(HttpStatus.BAD_REQUEST);
+		}
+		this.clinicService.savePet(pet);
+		HttpHeaders headers = new HttpHeaders();
+		headers.setLocation(ucBuilder.path("/api/pets/{id}").buildAndExpand(pet.getId()).toUri());
+		return new ResponseEntity<Void>(headers, HttpStatus.CREATED);
+	}
+	
+	@RequestMapping(value = "/{petId}", method = RequestMethod.PUT, produces = MediaType.APPLICATION_JSON_UTF8_VALUE)
+	public ResponseEntity<Pet> updatePet(@PathVariable("petId") int petId, @RequestBody @Valid Pet pet, BindingResult bindingResult){
+		if(bindingResult.hasErrors() || (pet == null)){
+			return new ResponseEntity<Pet>(HttpStatus.BAD_REQUEST);
+		}
+		Pet currentPet = this.clinicService.findPetById(petId);
+		if(currentPet == null){
+			return new ResponseEntity<Pet>(HttpStatus.NOT_FOUND);
+		}
+		currentPet.setBirthDate(pet.getBirthDate());
+		currentPet.setName(pet.getName());
+		currentPet.setType(pet.getType());
+		this.clinicService.savePet(currentPet);
+		return new ResponseEntity<Pet>(currentPet, HttpStatus.NO_CONTENT);
+	}
+	
+
+}