/*
* Copyright (c) MuleSoft, Inc. All rights reserved. http://www.mulesoft.com
* The software in this package is published under the terms of the CPAL v1.0
* license, a copy of which has been included with this distribution in the
* LICENSE.txt file.
*/
package org.mule.transport.ajax;
import org.mule.api.MuleContext;
import org.mule.api.MuleEvent;
import org.mule.api.MuleException;
import org.mule.api.MuleMessage;
import org.mule.api.endpoint.EndpointBuilder;
import org.mule.api.endpoint.OutboundEndpoint;
import org.mule.api.transformer.Transformer;
import org.mule.api.transport.Connector;
import org.mule.endpoint.EndpointURIEndpointBuilder;
import org.mule.transport.DefaultReplyToHandler;
import java.util.List;
import org.cometd.Channel;
import org.cometd.Client;
import org.mortbay.cometd.AbstractBayeux;
/**
* Handles the sending of sending result messages back to the client when the a replyTo
* channel is specified in the client request.
*/
public class AjaxReplyToHandler extends DefaultReplyToHandler
{
/**
* Serial version
*/
private static final long serialVersionUID = 1L;
public AjaxReplyToHandler(Connector connector, MuleContext muleContext)
{
super(muleContext);
this.connector = connector;
}
@Override
public void processReplyTo(MuleEvent event, MuleMessage returnMessage, Object replyTo) throws MuleException
{
AbstractBayeux bayeux = ((BayeuxAware)connector).getBayeux();
Channel channel = bayeux.getChannel(replyTo.toString(), false);
if(channel==null)
{
logger.warn("No ajax Channel: " + replyTo + ". Maybe the client unregistered interest.");
return;
}
Object ret;
if(returnMessage.getExceptionPayload()!=null)
{
//If we are using RPC make sure we still send something back to the client so that the subscription is cancelled
ret = returnMessage.getExceptionPayload().getMessage();
}
else
{
EndpointBuilder endpointBuilder = new EndpointURIEndpointBuilder(event.getMessageSourceURI().toString(), muleContext);
endpointBuilder.setConnector(connector);
OutboundEndpoint tempEndpoint = muleContext.getEndpointFactory().getOutboundEndpoint(endpointBuilder);
List<Transformer> defaultTransportTransformers = ((org.mule.transport.AbstractConnector) connector).getDefaultOutboundTransformers(tempEndpoint);
returnMessage.applyTransformers(event, defaultTransportTransformers);
ret = returnMessage.getPayload();
}
//Publish to interested clients
for (Client client : channel.getSubscribers())
{
channel.publish(client, ret, null);
}
}
}