/*******************************************************************************
* Copyright (c) 2005, 2014 springside.github.io
*
* Licensed under the Apache License, Version 2.0 (the "License");
*******************************************************************************/
package org.springside.examples.quickstart.rest;
import java.net.URI;
import java.util.List;
import javax.validation.Validator;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
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.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.ResponseStatus;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.util.UriComponentsBuilder;
import org.springside.examples.quickstart.entity.Task;
import org.springside.examples.quickstart.service.task.TaskService;
import org.springside.modules.beanvalidator.BeanValidators;
import org.springside.modules.web.MediaTypes;
/**
* Task的Restful API的Controller.
*
* @author calvin
*/
@RestController
@RequestMapping(value = "/api/v1/task")
public class TaskRestController {
private static Logger logger = LoggerFactory.getLogger(TaskRestController.class);
@Autowired
private TaskService taskService;
@Autowired
private Validator validator;
@RequestMapping(method = RequestMethod.GET, produces = MediaTypes.JSON_UTF_8)
public List<Task> list() {
return taskService.getAllTask();
}
@RequestMapping(value = "/{id}", method = RequestMethod.GET, produces = MediaTypes.JSON_UTF_8)
public Task get(@PathVariable("id") Long id) {
Task task = taskService.getTask(id);
if (task == null) {
String message = "任务不存在(id:" + id + ")";
logger.warn(message);
throw new RestException(HttpStatus.NOT_FOUND, message);
}
return task;
}
@RequestMapping(method = RequestMethod.POST, consumes = MediaTypes.JSON)
public ResponseEntity<?> create(@RequestBody Task task, UriComponentsBuilder uriBuilder) {
// 调用JSR303 Bean Validator进行校验, 异常将由RestExceptionHandler统一处理.
BeanValidators.validateWithException(validator, task);
// 保存任务
taskService.saveTask(task);
// 按照Restful风格约定，创建指向新任务的url, 也可以直接返回id或对象.
Long id = task.getId();
URI uri = uriBuilder.path("/api/v1/task/" + id).build().toUri();
HttpHeaders headers = new HttpHeaders();
headers.setLocation(uri);
return new ResponseEntity(headers, HttpStatus.CREATED);
}
@RequestMapping(value = "/{id}", method = RequestMethod.PUT, consumes = MediaTypes.JSON)
// 按Restful风格约定，返回204状态码, 无内容. 也可以返回200状态码.
@ResponseStatus(HttpStatus.NO_CONTENT)
public void update(@RequestBody Task task) {
// 调用JSR303 Bean Validator进行校验, 异常将由RestExceptionHandler统一处理.
BeanValidators.validateWithException(validator, task);
// 保存任务
taskService.saveTask(task);
}
@RequestMapping(value = "/{id}", method = RequestMethod.DELETE)
@ResponseStatus(HttpStatus.NO_CONTENT)
public void delete(@PathVariable("id") Long id) {
taskService.deleteTask(id);
}
}