/**
* 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 org.jooby.internal.jetty;
import java.io.InputStream;
import java.nio.ByteBuffer;
import java.nio.channels.Channels;
import java.nio.channels.FileChannel;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.eclipse.jetty.server.HttpOutput;
import org.eclipse.jetty.server.Response;
import org.eclipse.jetty.util.Callback;
import org.jooby.servlet.ServletServletRequest;
import org.jooby.servlet.ServletServletResponse;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class JettyResponse extends ServletServletResponse implements Callback {
/** The logging system. */
private final Logger log = LoggerFactory.getLogger(org.jooby.Response.class);
private ServletServletRequest nreq;
private volatile boolean endRequest = true;
public JettyResponse(final ServletServletRequest nreq, final HttpServletResponse rsp) {
super(nreq.servletRequest(), rsp);
this.nreq = nreq;
}
@Override
public void send(final byte[] bytes) throws Exception {
sender().sendContent(ByteBuffer.wrap(bytes));
}
@Override
public void send(final ByteBuffer buffer) throws Exception {
sender().sendContent(buffer);
}
@Override
public void send(final InputStream stream) throws Exception {
endRequest = false;
startAsyncIfNeedIt();
sender().sendContent(Channels.newChannel(stream), this);
}
@Override
public void send(final FileChannel channel) throws Exception {
int bufferSize = rsp.getBufferSize();
if (channel.size() < bufferSize) {
// sync version, file size is smaller than bufferSize
sender().sendContent(channel);
} else {
endRequest = false;
startAsyncIfNeedIt();
sender().sendContent(channel, this);
}
}
@Override
public void succeeded() {
endRequest = true;
end();
}
@Override
public void failed(final Throwable cause) {
endRequest = true;
log.error("execution of " + nreq.path() + " resulted in exception", cause);
end();
}
@Override
public void end() {
if (endRequest) {
super.end();
nreq = null;
}
}
@Override
protected void close() {
sender().close();
}
private HttpOutput sender() {
return ((Response) rsp).getHttpOutput();
}
private void startAsyncIfNeedIt() {
HttpServletRequest req = nreq.servletRequest();
if (!req.isAsyncStarted()) {
req.startAsync();
}
}
}