/*
* 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.jsmp;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.Reader;
import java.util.logging.Logger;
import javax.servlet.GenericServlet;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import com.caucho.bam.actor.ActorHolder;
import com.caucho.bam.broker.AbstractBroker;
import com.caucho.bam.broker.Broker;
import com.caucho.bam.mailbox.Mailbox;
import com.caucho.bam.stream.AbstractMessageStream;
import com.caucho.bam.stream.MessageStream;
import com.caucho.config.ConfigException;
import com.caucho.util.L10N;
import com.caucho.websocket.AbstractWebSocketListener;
import com.caucho.websocket.WebSocketContext;
import com.caucho.websocket.WebSocketServletRequest;
/**
* JmtpReader stream handles client packets received from the server.
*/
public class JmtpServlet extends GenericServlet {
private static final L10N L = new L10N(JmtpServlet.class);
private static final Logger log
= Logger.getLogger(JmtpServlet.class.getName());
private Class<?> _actorClass;
public void setActorClass(Class<?> actorClass)
{
_actorClass = actorClass;
}
public void init()
{
if (_actorClass == null)
throw new ConfigException(L.l("JmtpServlet requires an actor"));
}
public void service(ServletRequest request,
ServletResponse response)
throws IOException, ServletException
{
WebSocketServletRequest wsRequest = (WebSocketServletRequest) request;
ActorHolder actor;
try {
actor = (ActorHolder) _actorClass.newInstance();
} catch (Exception e) {
throw new ServletException(e);
}
Listener listener = new Listener(actor);
wsRequest.startWebSocket(listener);
}
static class Listener extends AbstractWebSocketListener {
private ActorHolder _actor;
private MessageStream _actorStream;
private InputStream _is;
private OutputStream _os;
private JsmpReader _jmtpReader;
private JsmpWriter _jmtpWriter;
private JmtpMailbox _jmtpMailbox;
private JmtpBroker _jmtpBroker;
Listener(ActorHolder actor)
{
_actor = actor;
if (_actor == null)
throw new NullPointerException();
}
@Override
public void onStart(WebSocketContext context)
throws IOException
{
_jmtpMailbox = new JmtpMailbox(this);
_actor.setBroker(new JmtpBroker(this));
_actorStream = _actor.getActor();
}
@Override
public void onReadBinary(WebSocketContext context, InputStream is)
throws IOException
{
JsmpReader reader = new JsmpReader(is);
reader.readPacket(_actorStream);
}
public void onReadText(WebSocketContext context,
Reader is)
throws IOException
{
/*
JmtpReader reader = new JmtpReader(is);
reader.readPacket(_actorStream);
*/
}
}
private static class JmtpBroker extends AbstractBroker {
private Listener _listener;
JmtpBroker(Listener listener)
{
_listener = listener;
}
public Mailbox getMailbox(String address)
{
return _listener._jmtpMailbox;
}
}
private static class JmtpMailbox extends AbstractMessageStream implements Mailbox {
private Listener _listener;
JmtpMailbox(Listener listener)
{
_listener = listener;
}
public Broker getBroker()
{
return _listener._jmtpBroker;
}
@Override
public MessageStream getActorStream()
{
return null;
}
@Override
public void close()
{
}
}
}