// ========================================================================
// Copyright 2007-2008 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// Licensed 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.cometd.demo;
import java.io.IOException;
import javax.servlet.GenericServlet;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletResponse;
import org.cometd.Bayeux;
import org.cometd.Client;
import org.cometd.Message;
import org.mortbay.cometd.BayeuxService;
import org.mortbay.cometd.ext.AcknowledgedMessagesExtension;
import org.mortbay.cometd.ext.TimesyncExtension;
import org.mortbay.log.Log;
public class CometdDemoServlet extends GenericServlet
{
public CometdDemoServlet()
{
}
@Override
public void init() throws ServletException
{
super.init();
Bayeux bayeux=(Bayeux)getServletContext().getAttribute(Bayeux.ATTRIBUTE);
new EchoRPC(bayeux);
new Monitor(bayeux);
new ChatService(bayeux);
bayeux.addExtension(new TimesyncExtension());
bayeux.addExtension(new AcknowledgedMessagesExtension());
/*
StatisticsExtension se = new StatisticsExtension();
se.setStatsRequestKeys(new String[]{"chat"});
se.setStatsRequestSentinel("//stats");
se.setStatsRequestChannel("/chat/demo");
se.setStatsResultSentinel("//stats-results");
se.setStatsConfirmSentinel("//stats-confirm");
se.setProbeChannel("/chat/demo");
se.setProbeSentinel("//stats-probe");
se.setProbeReplySentinel("//stats-reply");
se.setProbeReplyChannel("/chat/demo");
se.setProbeReplyKeys(new String[]{"chat"});
bayeux.addExtension(se);
*/
}
public static class EchoRPC extends BayeuxService
{
public EchoRPC(Bayeux bayeux)
{
super(bayeux,"echo");
subscribe("/service/echo","doEcho");
}
public Object doEcho(Client client, Object data)
{
Log.info("ECHO from "+client+" "+data);
return data;
}
}
public static class Monitor extends BayeuxService
{
public Monitor(Bayeux bayeux)
{
super(bayeux,"monitor");
subscribe("/meta/subscribe","monitorSubscribe");
subscribe("/meta/unsubscribe","monitorUnsubscribe");
subscribe("/meta/*","monitorMeta");
// subscribe("/**","monitorVerbose");
}
public void monitorSubscribe(Client client, Message message)
{
Log.info("Subscribe from "+client+" for "+message.get(Bayeux.SUBSCRIPTION_FIELD));
}
public void monitorUnsubscribe(Client client, Message message)
{
Log.info("Unsubscribe from "+client+" for "+message.get(Bayeux.SUBSCRIPTION_FIELD));
}
public void monitorMeta(Client client, Message message)
{
if (Log.isDebugEnabled())
Log.debug(message.toString());
}
/*
public void monitorVerbose(Client client, Message message)
{
System.err.println(message);
try
{
Thread.sleep(5000);
}
catch(Exception e)
{
Log.warn(e);
}
}
*/
}
@Override
public void service(ServletRequest req, ServletResponse res) throws ServletException, IOException
{
((HttpServletResponse)res).sendError(503);
}
}