package org.jacorb.notification.servant;
/*
* JacORB - a free Java ORB
*
* Copyright (C) 1999-2004 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.BooleanHolder;
import org.omg.CORBA.ORB;
import org.omg.CosEventChannelAdmin.AlreadyConnected;
import org.omg.CosEventComm.Disconnected;
import org.omg.CosNotification.StructuredEvent;
import org.omg.CosNotifyChannelAdmin.ProxyType;
import org.omg.CosNotifyChannelAdmin.StructuredProxyPullConsumerOperations;
import org.omg.CosNotifyChannelAdmin.StructuredProxyPullConsumerPOATie;
import org.omg.CosNotifyChannelAdmin.SupplierAdmin;
import org.omg.CosNotifyComm.StructuredPullSupplier;
import org.omg.PortableServer.POA;
import org.omg.PortableServer.Servant;
/**
* @jmx.mbean extends ="AbstractProxyConsumerMBean"
* @jboss.xmbean
*
* @author Alphonse Bendt
* @version $Id: StructuredProxyPullConsumerImpl.java,v 1.18 2009-04-25 10:08:52 andre.spiegel Exp $
*/
public class StructuredProxyPullConsumerImpl extends AbstractProxyConsumer implements
StructuredProxyPullConsumerOperations, MessageSupplier, MessageSupplierDelegate,
StructuredProxyPullConsumerImplMBean
{
private StructuredPullSupplier pullSupplier_;
private final long pollInterval_;
private final PullMessagesUtility pollUtil_;
private final PullMessagesOperation pullMessagesOperation_;
// //////////////////////////////////////
public StructuredProxyPullConsumerImpl(IAdmin admin, ORB orb, POA poa, Configuration config,
TaskProcessor taskProcessor, MessageFactory mf, OfferManager offerManager,
SubscriptionManager subscriptionManager, SupplierAdmin supplierAdmin)
{
super(admin, orb, poa, config, taskProcessor, mf, supplierAdmin, offerManager,
subscriptionManager);
pollInterval_ = config.getAttributeAsLong(Attributes.PULL_CONSUMER_POLL_INTERVAL,
Default.DEFAULT_PULL_CONSUMER_POLL_INTERVAL);
pollUtil_ = new PullMessagesUtility(taskProcessor, this);
pullMessagesOperation_ = new PullMessagesOperation(this);
}
// //////////////////////////////////////
public ProxyType MyType()
{
return ProxyType.PULL_STRUCTURED;
}
public void disconnect_structured_pull_consumer()
{
destroy();
}
public synchronized void connect_structured_pull_supplier(StructuredPullSupplier pullSupplier)
throws AlreadyConnected
{
checkIsNotConnected();
pullSupplier_ = pullSupplier;
connectClient(pullSupplier);
startTask();
}
protected void connectionSuspended()
{
stopTask();
}
public void connectionResumed()
{
startTask();
}
protected void disconnectClient()
{
stopTask();
pullSupplier_.disconnect_structured_pull_supplier();
pullSupplier_ = null;
}
protected void startTask()
{
pollUtil_.startTask(pollInterval_);
}
protected void stopTask()
{
pollUtil_.stopTask();
}
public Servant newServant()
{
return new StructuredProxyPullConsumerPOATie(this);
}
public MessageSupplierDelegate.PullResult pullMessages() throws Disconnected
{
BooleanHolder _hasEvent = new BooleanHolder();
_hasEvent.value = false;
StructuredEvent _event = pullSupplier_.try_pull_structured_event(_hasEvent);
return new MessageSupplierDelegate.PullResult(_event, _hasEvent.value);
}
public void queueMessages(PullResult data)
{
Message _mesg = getMessageFactory().newMessage((StructuredEvent) data.data_, this);
checkMessageProperties(_mesg);
processMessage(_mesg);
}
public void runPullMessage() throws Disconnected
{
pullMessagesOperation_.runPull();
}
}