/*
* $Id: PollingTcpMessageReceiver.java 20320 2010-11-24 15:03:31Z dfeist $
* --------------------------------------------------------------------------------------
* 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.tcp;
import org.mule.DefaultMuleMessage;
import org.mule.api.construct.FlowConstruct;
import org.mule.api.endpoint.InboundEndpoint;
import org.mule.api.lifecycle.CreateException;
import org.mule.api.transport.Connector;
import org.mule.transport.AbstractPollingMessageReceiver;
import org.mule.transport.tcp.i18n.TcpMessages;
import org.mule.util.MapUtils;
import java.net.Socket;
import java.net.SocketTimeoutException;
/**
* <code>PollingTcpMessageReceiver</code> acts like a TCP client polling for new
* messages.
*
* @author esteban.robles
*/
public class PollingTcpMessageReceiver extends AbstractPollingMessageReceiver
{
private int timeout;
private PollingTcpConnector connector;
public PollingTcpMessageReceiver(Connector connector, FlowConstruct flowConstruct, InboundEndpoint endpoint)
throws CreateException
{
super(connector, flowConstruct, endpoint);
if (connector instanceof PollingTcpConnector)
{
this.connector = (PollingTcpConnector) connector;
}
else
{
throw new CreateException(TcpMessages.pollingReceiverCannotbeUsed(), this);
}
timeout = MapUtils.getIntValue(endpoint.getProperties(), "clientSoTimeout",
this.connector.getClientSoTimeout());
if (timeout > Integer.MAX_VALUE || timeout < 0)
{
throw new IllegalArgumentException("Timeout incorrect: " + timeout);
}
long pollingFrequency = MapUtils.getLongValue(endpoint.getProperties(), "pollingFrequency",
this.connector.getPollingFrequency());
if (pollingFrequency > 0)
{
this.setFrequency(pollingFrequency);
}
}
@Override
public void poll() throws Exception
{
Socket socket = connector.getSocket(endpoint);
try
{
Object result = TcpMessageDispatcher.receiveFromSocket(socket, (int) timeout, endpoint);
if (!(result == null))
{
this.routeMessage(new DefaultMuleMessage(result, connector.getMuleContext()));
if (logger.isDebugEnabled())
{
logger.debug("Routing new message: " + result);
}
}
}
catch (SocketTimeoutException e)
{
if (logger.isDebugEnabled())
{
logger.debug("Socket timed out normally while doing a synchronous receive on endpointUri: "
+ endpoint.getEndpointURI());
}
}
finally
{
connector.releaseSocket(socket, endpoint);
}
}
}