/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 async;
import java.io.PrintWriter;
import javax.servlet.AsyncContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.juli.logging.Log;
import org.apache.juli.logging.LogFactory;
@douyu.mvc.Controller
public class Async0 {
private static final Log log = LogFactory.getLog(Async0.class);
public void index(final HttpServletRequest req, final HttpServletResponse resp, PrintWriter out) {
if (Boolean.TRUE == req.getAttribute("dispatch")) {
log.info("Received dispatch, completing on the worker thread.");
log.info("After complete called started:" + req.isAsyncStarted());
out.write("Async dispatch worked:+" + System.currentTimeMillis() + "\n");
req.getAsyncContext().complete();
} else {
resp.setContentType("text/plain");
final AsyncContext actx = req.startAsync();
actx.setTimeout(Long.MAX_VALUE);
Runnable run = new Runnable() {
@Override
public void run() {
try {
req.setAttribute("dispatch", Boolean.TRUE);
Thread.currentThread().setName("Async0-Thread");
log.info("Putting AsyncThread to sleep");
//Thread.sleep(2 * 1000);
Thread.sleep(100);
log.info("Dispatching");
actx.dispatch();
} catch (InterruptedException x) {
log.error("Async1", x);
} catch (IllegalStateException x) {
log.error("Async1", x);
}
}
};
Thread t = new Thread(run);
t.start();
}
}
}