org.eclipse.jetty.websocket.common.events.JettyListenerEventDriver Maven / Gradle / Ivy
//
// ========================================================================
// Copyright (c) 1995-2018 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
//
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
//
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
//
// You may elect to redistribute this code under either of these licenses.
// ========================================================================
//
package org.eclipse.jetty.websocket.common.events;
import java.io.IOException;
import java.io.InputStream;
import java.io.Reader;
import java.nio.ByteBuffer;
import org.eclipse.jetty.util.log.Log;
import org.eclipse.jetty.util.log.Logger;
import org.eclipse.jetty.websocket.api.WebSocketListener;
import org.eclipse.jetty.websocket.api.WebSocketPolicy;
import org.eclipse.jetty.websocket.api.extensions.Frame;
import org.eclipse.jetty.websocket.common.CloseInfo;
import org.eclipse.jetty.websocket.common.message.SimpleBinaryMessage;
import org.eclipse.jetty.websocket.common.message.SimpleTextMessage;
/**
* Handler for {@link WebSocketListener} based User WebSocket implementations.
*/
public class JettyListenerEventDriver extends AbstractEventDriver
{
private static final Logger LOG = Log.getLogger(JettyListenerEventDriver.class);
private final WebSocketListener listener;
private boolean hasCloseBeenCalled = false;
public JettyListenerEventDriver(WebSocketPolicy policy, WebSocketListener listener)
{
super(policy,listener);
this.listener = listener;
}
@Override
public void onBinaryFrame(ByteBuffer buffer, boolean fin) throws IOException
{
if (activeMessage == null)
{
activeMessage = new SimpleBinaryMessage(this);
}
appendMessage(buffer,fin);
}
@Override
public void onBinaryMessage(byte[] data)
{
listener.onWebSocketBinary(data,0,data.length);
}
@Override
public void onClose(CloseInfo close)
{
if (hasCloseBeenCalled)
{
// avoid duplicate close events (possible when using harsh Session.disconnect())
return;
}
hasCloseBeenCalled = true;
int statusCode = close.getStatusCode();
String reason = close.getReason();
listener.onWebSocketClose(statusCode,reason);
}
@Override
public void onConnect()
{
if (LOG.isDebugEnabled())
LOG.debug("onConnect()");
listener.onWebSocketConnect(session);
}
@Override
public void onError(Throwable cause)
{
listener.onWebSocketError(cause);
}
@Override
public void onFrame(Frame frame)
{
/* ignore, not supported by WebSocketListener */
}
@Override
public void onInputStream(InputStream stream)
{
/* not supported in Listener mode (yet) */
}
@Override
public void onReader(Reader reader)
{
/* not supported in Listener mode (yet) */
}
@Override
public void onTextFrame(ByteBuffer buffer, boolean fin) throws IOException
{
if (activeMessage == null)
{
activeMessage = new SimpleTextMessage(this);
}
appendMessage(buffer,fin);
}
@Override
public void onTextMessage(String message)
{
listener.onWebSocketText(message);
}
@Override
public String toString()
{
return String.format("%s[%s]",JettyListenerEventDriver.class.getSimpleName(),listener.getClass().getName());
}
}