/*
* JBoss, Home of Professional Open Source.
* Copyright 2014 Red Hat, Inc., and individual contributors
* as indicated by the @author tags.
*
* 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 io.undertow.servlet.test.streams;
import java.io.IOException;
import java.util.concurrent.atomic.AtomicInteger;
import javax.servlet.AsyncContext;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.WriteListener;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* @author Stuart Douglas
*/
public class AsyncOutputStreamServlet extends HttpServlet {
@Override
protected void doGet(final HttpServletRequest req, final HttpServletResponse resp) throws ServletException, IOException {
final boolean flush = req.getParameter("flush") != null;
final boolean close = req.getParameter("close") != null;
final int reps = Integer.parseInt(req.getParameter("reps"));
final AtomicInteger count = new AtomicInteger();
final AsyncContext context = req.startAsync();
final ServletOutputStream outputStream = resp.getOutputStream();
outputStream.setWriteListener(new WriteListener() {
@Override
public synchronized void onWritePossible() throws IOException {
while (outputStream.isReady() && count.get() < reps) {
count.incrementAndGet();
outputStream.write(ServletOutputStreamTestCase.message.getBytes());
}
if (count.get() == reps) {
if (flush) {
outputStream.flush();
}
if (close) {
outputStream.close();
}
context.complete();
}
}
@Override
public void onError(final Throwable t) {
}
});
}
}