/*
* JBoss, Home of Professional Open Source
* Copyright 2005, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.jms.client.state;
import java.util.Collections;
import org.jboss.jms.client.container.ClientConsumer;
import org.jboss.jms.client.delegate.ClientConnectionDelegate;
import org.jboss.jms.client.delegate.DelegateSupport;
import org.jboss.jms.client.remoting.CallbackManager;
import org.jboss.jms.delegate.ConsumerDelegate;
import org.jboss.jms.destination.JBossDestination;
import org.jboss.messaging.util.Version;
/**
* State corresponding to a Consumer. This state is acessible inside aspects/interceptors.
*
* @author <a href="mailto:tim.fox@jboss.com">Tim Fox</a>
* @author <a href="mailto:clebert.suconic@jboss.com">Clebert Suconic</a>
* @author <a href="mailto:ovidiu@feodorov.com">Clebert Suconic</a>
* @version <tt>$Revision: 8255 $</tt>
*
* $Id: ConsumerState.java 8255 2011-04-06 14:48:23Z gaohoward $
*/
public class ConsumerState extends HierarchicalStateSupport
{
// Constants ------------------------------------------------------------------------------------
// Static ---------------------------------------------------------------------------------------
// Attributes -----------------------------------------------------------------------------------
private String consumerID;
private JBossDestination destination;
private String selector;
private String subscriptionName;
private boolean noLocal;
private boolean isConnectionConsumer;
private ClientConsumer clientConsumer;
private int bufferSize;
private int maxDeliveries;
private long redeliveryDelay;
private boolean storingDeliveries;
private SessionState parent;
private ConsumerDelegate delegate;
private long maxRetryChangeRate;
private long retryChangeRateInterval;
// Constructors ---------------------------------------------------------------------------------
public ConsumerState(SessionState parent, ConsumerDelegate delegate, JBossDestination dest,
String selector, boolean noLocal, String subscriptionName, String consumerID,
boolean isCC, int bufferSize, int maxDeliveries, long redeliveryDelay)
{
super(parent, (DelegateSupport)delegate);
children = Collections.EMPTY_SET;
this.destination = dest;
this.selector = selector;
this.noLocal = noLocal;
this.consumerID = consumerID;
this.isConnectionConsumer = isCC;
this.bufferSize = bufferSize;
this.subscriptionName=subscriptionName;
this.maxDeliveries = maxDeliveries;
this.redeliveryDelay = redeliveryDelay;
this.maxRetryChangeRate = parent.getMaxRetryChangeRate();
this.retryChangeRateInterval = parent.getRetryChangeRateInterval();
//We don't store deliveries if this a non durable subscriber
if (dest.isTopic() && subscriptionName == null)
{
storingDeliveries = false;
}
else
{
storingDeliveries = true;
}
}
// HierarchicalState implementation -------------------------------------------------------------
public DelegateSupport getDelegate()
{
return (DelegateSupport)delegate;
}
public void setDelegate(DelegateSupport delegate)
{
this.delegate = (ConsumerDelegate)delegate;
}
public HierarchicalState getParent()
{
return parent;
}
public void setParent(HierarchicalState parent)
{
this.parent=(SessionState)parent;
}
public Version getVersionToUse()
{
return parent.getVersionToUse();
}
// HierarchicalStateSupport overrides -----------------------------------------------------------
public void synchronizeWith(HierarchicalState ns) throws Exception
{
ConsumerState newState = (ConsumerState)ns;
String oldConsumerID = consumerID;
consumerID = newState.consumerID;
CallbackManager oldCallbackManager = ((ClientConnectionDelegate)getParent().getParent().
getDelegate()).getRemotingConnection().getCallbackManager();
CallbackManager newCallbackManager = ((ClientConnectionDelegate)ns.getParent().getParent().
getDelegate()).getRemotingConnection().getCallbackManager();
// We need to synchronize the old message callback handler using the new one
ClientConsumer handler = oldCallbackManager.unregisterHandler(oldConsumerID);
ClientConsumer newHandler = newCallbackManager.unregisterHandler(consumerID);
handler.synchronizeWith(newHandler);
newCallbackManager.registerHandler(consumerID, handler);
}
// Public ---------------------------------------------------------------------------------------
public JBossDestination getDestination()
{
return destination;
}
public String getSelector()
{
return selector;
}
public boolean isNoLocal()
{
return noLocal;
}
public String getConsumerID()
{
return consumerID;
}
public boolean isConnectionConsumer()
{
return isConnectionConsumer;
}
public void setClientConsumer(ClientConsumer handler)
{
this.clientConsumer = handler;
}
public ClientConsumer getClientConsumer()
{
return clientConsumer;
}
public int getBufferSize()
{
return bufferSize;
}
public String getSubscriptionName()
{
return subscriptionName;
}
public void setSubscriptionName(String subscriptionName)
{
this.subscriptionName = subscriptionName;
}
public int getMaxDeliveries()
{
return maxDeliveries;
}
public boolean isStoringDeliveries()
{
return storingDeliveries;
}
public boolean isShouldAck()
{
//If e are a non durable subscriber to a topic then there is no need
//to send acks to the server - we wouldn't have stored them on the server side anyway
return !(destination.isTopic() && subscriptionName == null);
}
public long getRedeliveryDelay()
{
return redeliveryDelay;
}
public long getMaxRetryChangeRate()
{
return maxRetryChangeRate;
}
public long getRetryChangeRateInterval()
{
return this.retryChangeRateInterval;
}
public void beforeAborting()
{
clientConsumer.abortReceive();
}
// Package protected ----------------------------------------------------------------------------
// Protected ------------------------------------------------------------------------------------
// Private --------------------------------------------------------------------------------------
// Inner classes --------------------------------------------------------------------------------
}