/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.remote.websocket;
import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.logging.Level;
import java.util.logging.Logger;
import com.caucho.util.L10N;
import com.caucho.vfs.TempBuffer;
import com.caucho.vfs.WriteStream;
import com.caucho.websocket.WebSocketContext;
/**
* User facade for http requests.
*/
public class WebSocketContextStreamImpl
implements WebSocketContext, WebSocketConstants
{
private static final L10N L = new L10N(WebSocketContextStreamImpl.class);
private static final Logger log
= Logger.getLogger(WebSocketContextStreamImpl.class.getName());
private WriteStream _out;
private WebSocketOutputStream _binaryOut;
private WebSocketWriter _textOut;
private PrintWriter _textWriter;
private AtomicBoolean _isWriteClosed = new AtomicBoolean();
public WebSocketContextStreamImpl(WriteStream out)
{
_out = out;
}
@Override
public void setTimeout(long timeout)
{
}
@Override
public long getTimeout()
{
throw new UnsupportedOperationException(getClass().getName());
}
/*
@Override
public InputStream getInputStream()
throws IOException
{
return _controller.getReadStream();
}
*/
@Override
public OutputStream startBinaryMessage()
throws IOException
{
if (_isWriteClosed.get())
throw new IllegalStateException(L.l("{0} is closed for writing.",
this));
if (_binaryOut == null)
_binaryOut = new WebSocketOutputStream(getWriteStream(),
TempBuffer.allocate().getBuffer());
_binaryOut.init();
return _binaryOut;
}
@Override
public PrintWriter startTextMessage()
throws IOException
{
if (_textOut == null) {
_textOut = new WebSocketWriter(getWriteStream(),
TempBuffer.allocate().getBuffer());
_textWriter = new WebSocketPrintWriter(_textOut);
}
_textOut.init();
return _textWriter;
}
@Override
public void close()
{
if (_isWriteClosed.getAndSet(true))
return;
try {
WriteStream out = getWriteStream();
out.write(0x81);
out.write(0x00);
out.flush();
} catch (IOException e) {
log.log(Level.WARNING, e.toString(), e);
} finally {
disconnect();
}
}
protected WriteStream getWriteStream()
{
return _out;
}
@Override
public void disconnect()
{
_out = null;
}
//
// duplex callbacks
//
void onStart()
throws IOException
{
}
void flush()
throws IOException
{
WriteStream out = getWriteStream();
out.flush();
}
protected WebSocketInputStream createWebSocketInputStream(FrameInputStream is)
throws IOException
{
return new WebSocketInputStream(is);
}
@Override
public String toString()
{
return getClass().getSimpleName() + "[" + getWriteStream() + "]";
}
}