org.eclipse.jetty.websocket.api.io.WebSocketBlockingConnection Maven / Gradle / Ivy
//
// ========================================================================
// Copyright (c) 1995-2012 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.api.io;
import java.io.IOException;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Future;
import javax.net.websocket.SendResult;
import org.eclipse.jetty.websocket.api.WebSocketConnection;
import org.eclipse.jetty.websocket.api.WebSocketException;
/**
* For working with the {@link WebSocketConnection} in a blocking technique.
*
* This is an end-user accessible class.
*/
public class WebSocketBlockingConnection
{
private final WebSocketConnection conn;
public WebSocketBlockingConnection(WebSocketConnection conn)
{
this.conn = conn;
}
/**
* Send a binary message.
*
* Basic usage, results in a blocking write.
*/
public void write(byte[] data, int offset, int length) throws IOException
{
try
{
Future blocker = conn.write(data,offset,length);
SendResult result = blocker.get(); // block till finished
if (result.getException() != null)
{
throw new WebSocketException(result.getException());
}
}
catch (InterruptedException e)
{
throw new IOException("Blocking write failed",e);
}
catch (ExecutionException e)
{
throw new WebSocketException(e.getCause());
}
}
/**
* Send text message.
*
* Basic usage, results in a blocking write.
*/
public void write(String message) throws IOException
{
try
{
Future blocker = conn.write(message);
SendResult result = blocker.get(); // block till finished
if (result.getException() != null)
{
throw new WebSocketException(result.getException());
}
}
catch (InterruptedException e)
{
throw new IOException("Blocking write failed",e);
}
catch (ExecutionException e)
{
throw new WebSocketException(e.getCause());
}
}
}