/*******************************************************************************
* Copyright (c) 2005, 2014 springside.github.io
*
* Licensed under the Apache License, Version 2.0 (the "License");
*******************************************************************************/
package org.springside.examples.showcase.demos.hystrix.dependency;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.stereotype.Controller;
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.ResponseBody;
import org.springside.examples.showcase.entity.User;
import org.springside.examples.showcase.service.AccountEffectiveService;
import org.springside.examples.showcase.webservice.rest.RestException;
import org.springside.examples.showcase.webservice.rest.UserDTO;
import org.springside.modules.mapper.BeanMapper;
import org.springside.modules.utils.Threads;
/**
* 模拟被Service所依赖的Resource.
*/
@Controller
public class DependencyResourceController {
public static final int TIMEOUT = 30000;
public static String status = "normal";
@Autowired
private AccountEffectiveService accountService;
/**
* 根据控制器中的状态而演示不同的行为，如正常返回，30秒后返回或直接报错
*/
@RequestMapping(value = "/hystrix/resource/{id}", method = RequestMethod.GET)
@ResponseBody
public UserDTO getUser(@PathVariable("id") Long id) {
// 正常返回.
if ("normal".equals(status)) {
return handleRequest(id);
}
// 演示超时，30秒后返回.
if ("timeout".equals(status)) {
Threads.sleep(TIMEOUT);
return handleRequest(id);
}
// 演示服务端出错情况.
if ("server-error".equals(status)) {
throw new RestException(HttpStatus.INTERNAL_SERVER_ERROR, "Server Exception");
}
// 演示客户端请求出错。
if ("bad-request".equals(status)) {
throw new RestException(HttpStatus.BAD_REQUEST, "Client send a bad request");
}
return null;
}
private UserDTO handleRequest(Long id) {
User user = accountService.getUser(id);
UserDTO dto = BeanMapper.map(user, UserDTO.class);
dto.setTeamId(user.getTeam().getId());
return dto;
}
}