package org.jacorb.notification.servant;
/*
* JacORB - a free Java ORB
*
* Copyright (C) 1997-2004 Gerald Brose.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
import org.jacorb.config.*;
import org.jacorb.notification.MessageFactory;
import org.jacorb.notification.OfferManager;
import org.jacorb.notification.SubscriptionManager;
import org.jacorb.notification.conf.Attributes;
import org.jacorb.notification.conf.Default;
import org.jacorb.notification.engine.TaskProcessor;
import org.jacorb.notification.interfaces.Message;
import org.jacorb.notification.interfaces.MessageSupplier;
import org.omg.CORBA.Any;
import org.omg.CORBA.BooleanHolder;
import org.omg.CORBA.ORB;
import org.omg.CosEventChannelAdmin.AlreadyConnected;
import org.omg.CosEventComm.Disconnected;
import org.omg.CosEventComm.PullSupplier;
import org.omg.CosNotifyChannelAdmin.ProxyPullConsumerOperations;
import org.omg.CosNotifyChannelAdmin.ProxyPullConsumerPOATie;
import org.omg.CosNotifyChannelAdmin.ProxyType;
import org.omg.PortableServer.POA;
import org.omg.PortableServer.Servant;
/**
* @jmx.mbean extends = "AbstractProxyConsumerMBean"
* @jboss.xmbean
*
* @author Alphonse Bendt
* @version $Id: ProxyPullConsumerImpl.java,v 1.17 2009-04-25 10:08:51 andre.spiegel Exp $
*/
public class ProxyPullConsumerImpl extends AbstractProxyConsumer implements
ProxyPullConsumerOperations, MessageSupplier, MessageSupplierDelegate, ProxyPullConsumerImplMBean
{
/**
* the connected PullSupplier
*/
private PullSupplier pullSupplier_;
private long pollInterval_;
private final PullMessagesOperation pullMessagesOperation_;
private final PullMessagesUtility pollTaskUtility_;
// //////////////////////////////////////
public ProxyPullConsumerImpl(IAdmin admin, ORB orb, POA poa, Configuration conf,
TaskProcessor taskProcessor, MessageFactory messageFactory, OfferManager offerManager,
SubscriptionManager subscriptionManager)
{
super(admin, orb, poa, conf, taskProcessor, messageFactory, null, offerManager,
subscriptionManager);
pollInterval_ = conf.getAttributeAsLong(Attributes.PULL_CONSUMER_POLL_INTERVAL,
Default.DEFAULT_PULL_CONSUMER_POLL_INTERVAL);
pullMessagesOperation_ = new PullMessagesOperation(this);
pollTaskUtility_ = new PullMessagesUtility(taskProcessor, this);
}
// //////////////////////////////////////
public ProxyType MyType()
{
return ProxyType.PULL_ANY;
}
public void disconnect_pull_consumer()
{
destroy();
}
protected void disconnectClient()
{
stopTask();
pullSupplier_.disconnect_pull_supplier();
pullSupplier_ = null;
}
protected void connectionSuspended()
{
stopTask();
}
protected void connectionResumed()
{
startTask();
}
public void runPullMessage() throws Disconnected
{
pullMessagesOperation_.runPull();
}
public void connect_any_pull_supplier(PullSupplier pullSupplier) throws AlreadyConnected
{
checkIsNotConnected();
pullSupplier_ = pullSupplier;
connectClient(pullSupplier);
startTask();
}
private synchronized void startTask()
{
pollTaskUtility_.startTask(pollInterval_);
}
private synchronized void stopTask()
{
pollTaskUtility_.stopTask();
}
public Servant newServant()
{
return new ProxyPullConsumerPOATie(this);
}
// //////////////////////////////////////
// todo collect management informations
public long getPollInterval()
{
return pollInterval_;
}
public long getPullTimer()
{
return pullMessagesOperation_.getTimeSpentInPull();
}
public int getPullCounter()
{
return pullMessagesOperation_.getPullCounter();
}
public int getSuccessfulPullCounter()
{
return pullMessagesOperation_.getSuccessfulPullCounter();
}
public MessageSupplierDelegate.PullResult pullMessages() throws Disconnected
{
BooleanHolder _hasEvent = new BooleanHolder();
Any _event = pullSupplier_.try_pull(_hasEvent);
return new MessageSupplierDelegate.PullResult(_event, _hasEvent.value);
}
public void queueMessages(PullResult data)
{
Message _message = getMessageFactory().newMessage((Any) data.data_, this);
checkMessageProperties(_message);
processMessage(_message);
}
}