/* * Copyright 2012-2015 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 me.rowkey.pje.spring.boot; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.ResponseBody; import org.springframework.web.bind.annotation.RestController; import org.springframework.web.context.request.async.DeferredResult; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.util.concurrent.Callable; import java.util.concurrent.Executor; import java.util.concurrent.Executors; @RestController public class MyController { @RequestMapping("/") public String hello(HttpServletRequest request, HttpServletResponse response) { return "Hello World!"; } @RequestMapping("/async/test") @ResponseBody public Callable<String> callable() { return new Callable<String>() { @Override public String call() throws Exception { Thread.sleep(2000); return "Callable Result"; } }; } private Executor executor = Executors.newFixedThreadPool(200); @RequestMapping("/async/deferred") @ResponseBody public DeferredResult<String> quotes() { DeferredResult<String> deferredResult = new DeferredResult<String>(2000L); deferredResult.onCompletion(new Runnable() { @Override public void run() { System.out.println("Deferred Result done !!!"); } }); executor.execute(new Runnable() { @Override public void run() { try { Thread.sleep(1000); } catch (InterruptedException e) { e.printStackTrace(); } deferredResult.setResult("Deferred Result"); } }); return deferredResult; } }