multicastingrouter.java

提供ESB 应用mule源代码 提供ESB 应用mule源代码

/*
 * $Id: MulticastingRouter.java 13006 2008-10-09 20:32:32Z dfeist $
 * --------------------------------------------------------------------------------------
 * Copyright (c) MuleSource, Inc.  All rights reserved.  http://www.mulesource.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.routing.outbound;

import org.mule.DefaultMuleMessage;
import org.mule.api.MuleException;
import org.mule.api.MuleMessage;
import org.mule.api.MuleSession;
import org.mule.api.endpoint.ImmutableEndpoint;
import org.mule.api.endpoint.OutboundEndpoint;
import org.mule.api.routing.CouldNotRouteOutboundMessageException;
import org.mule.api.routing.RoutePathNotFoundException;
import org.mule.api.routing.RoutingException;
import org.mule.config.i18n.CoreMessages;

import java.util.ArrayList;
import java.util.List;

/**
 * <code>MulticastingRouter</code> will broadcast the current message to every endpoint
 * registed with the router.
 */

public class MulticastingRouter extends FilteringOutboundRouter
{

    public MuleMessage route(MuleMessage message, MuleSession session)
        throws RoutingException
    {
        if (endpoints == null || endpoints.size() == 0)
        {
            throw new RoutePathNotFoundException(CoreMessages.noEndpointsForRouter(), message, null);
        }
        if (enableCorrelation != ENABLE_CORRELATION_NEVER)
        {
            boolean correlationSet = message.getCorrelationId() != null;
            if (correlationSet && (enableCorrelation == ENABLE_CORRELATION_IF_NOT_SET))
            {
                logger.debug("CorrelationId is already set, not setting Correlation group size");
            }
            else
            {
                // the correlationId will be set by the AbstractOutboundRouter
                message.setCorrelationGroupSize(endpoints.size());
            }
        }

        List results = new ArrayList(endpoints.size());
        try
        {
            OutboundEndpoint endpoint;
            for (int i = 0; i < endpoints.size(); i++)
            {
                endpoint = (OutboundEndpoint) endpoints.get(i);
                if (endpoint.isSynchronous())
                {
                    results.add(send(session, new DefaultMuleMessage(message.getPayload(), message), endpoint));
                }
                else
                {
                    dispatch(session, message, endpoint);
                }
            }
        }
        catch (MuleException e)
        {
            throw new CouldNotRouteOutboundMessageException(message, (ImmutableEndpoint) endpoints.get(0), e);
        }
        return resultsHandler.aggregateResults(results, message);
    }
}