/*
* 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.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import jakarta.servlet.AsyncContext;
import jakarta.servlet.ServletException;
import jakarta.servlet.http.HttpServlet;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import org.apache.juli.logging.Log;
import org.apache.juli.logging.LogFactory;
public class Async2 extends HttpServlet {
private static final long serialVersionUID = 1L;
private static final Log log = LogFactory.getLog(Async2.class);
@Override
protected void service(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
final AsyncContext actx = req.startAsync();
actx.setTimeout(30*1000);
Runnable run = new Runnable() {
@Override
public void run() {
try {
Thread.currentThread().setName("Async2-Thread");
log.info("Putting AsyncThread to sleep");
Thread.sleep(2*1000);
log.info("Writing data.");
Date date = new Date(System.currentTimeMillis());
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss Z");
actx.getResponse().getWriter().write(
"Output from background thread. Time: " + sdf.format(date) + " ");
actx.complete();
}catch (InterruptedException | IllegalStateException | IOException x) {
log.error("Async2",x);
}
}
};
Thread t = new Thread(run);
t.start();
}
}