Controller.java

package com.javabycode.controller;

import com.javabycode.model.Fruit;
import com.javabycode.service.FruitService;


import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.util.UriComponentsBuilder;

import java.util.List;

@RestController
@RequestMapping("/fruits")
public class FruitController {

	

	@Autowired
	private FruitService fruitService;

	@RequestMapping(method = RequestMethod.GET)
	public ResponseEntity getAll(@RequestParam(value = "offset", defaultValue = "0") int index,
			@RequestParam(value = "numberOfRecord", defaultValue = "10") int numberOfRecord) {
		System.out.println("We are in getAll()");

		return new ResponseEntity("Test", HttpStatus.OK);
	}

	@RequestMapping(value = "{id}", method = RequestMethod.GET)
	public ResponseEntity<Fruit> get(@PathVariable("id") int id) {
		//LOG.info("Getting fruit with id: {}", id);
		Fruit fruit = fruitService.findById(id);

		if (fruit == null) {
			return new ResponseEntity<Fruit>(HttpStatus.NOT_FOUND);
		}

		return new ResponseEntity<Fruit>(fruit, HttpStatus.OK);
	}

	@RequestMapping(method = RequestMethod.POST)
	public ResponseEntity<Void> create(@RequestBody Fruit fruit, UriComponentsBuilder ucBuilder) {
		//LOG.info("Creating fruit: {}", fruit);

		if (fruitService.exists(fruit)) {
			return new ResponseEntity<Void>(HttpStatus.CONFLICT);
		}

		fruitService.create(fruit);

		HttpHeaders headers = new HttpHeaders();
		headers.setLocation(ucBuilder.path("/fruit/{id}").buildAndExpand(fruit.getId()).toUri());
		return new ResponseEntity<Void>(headers, HttpStatus.CREATED);
	}

	@RequestMapping(value = "{id}", method = RequestMethod.PUT)
	public ResponseEntity<Fruit> update(@PathVariable int id, @RequestBody Fruit fruit) {
		//LOG.info("Updating fruit: {}", fruit);
		Fruit currentFruit = fruitService.findById(id);

		if (currentFruit == null) {
			return new ResponseEntity<Fruit>(HttpStatus.NOT_FOUND);
		}

		currentFruit.setId(fruit.getId());
		currentFruit.setName(fruit.getName());

		fruitService.update(fruit);
		return new ResponseEntity<Fruit>(currentFruit, HttpStatus.OK);
	}

	@RequestMapping(value = "{id}", method = RequestMethod.DELETE)
	public ResponseEntity<Void> delete(@PathVariable("id") int id) {
		//LOG.info("Deleting fruit with id: {}", id);
		Fruit fruit = fruitService.findById(id);

		if (fruit == null) {
			return new ResponseEntity<Void>(HttpStatus.NOT_FOUND);
		}

		fruitService.delete(id);
		return new ResponseEntity<Void>(HttpStatus.OK);
	}
}