package org.jacorb.notification.servant;
/*
* JacORB - a free Java ORB
*
* Copyright (C) 1997-2003 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.NoTranslationException;
import org.jacorb.notification.OfferManager;
import org.jacorb.notification.SubscriptionManager;
import org.jacorb.notification.TypedEventMessage;
import org.jacorb.notification.engine.PushOperation;
import org.jacorb.notification.engine.PushTaskExecutorFactory;
import org.jacorb.notification.engine.TaskProcessor;
import org.jacorb.notification.interfaces.Message;
import org.omg.CORBA.ARG_IN;
import org.omg.CORBA.NVList;
import org.omg.CORBA.ORB;
import org.omg.CORBA.Request;
import org.omg.CORBA.TCKind;
import org.omg.CORBA.TypeCode;
import org.omg.CosEventChannelAdmin.AlreadyConnected;
import org.omg.CosEventChannelAdmin.TypeError;
import org.omg.CosEventComm.Disconnected;
import org.omg.CosNotification.EventTypeHelper;
import org.omg.CosNotification.Property;
import org.omg.CosNotifyChannelAdmin.ConsumerAdmin;
import org.omg.CosNotifyChannelAdmin.ProxyType;
import org.omg.CosTypedEventComm.TypedPushConsumer;
import org.omg.CosTypedNotifyChannelAdmin.TypedProxyPushSupplierOperations;
import org.omg.CosTypedNotifyChannelAdmin.TypedProxyPushSupplierPOATie;
import org.omg.PortableServer.POA;
import org.omg.PortableServer.Servant;
/**
* @jmx.mbean extends = "AbstractProxyPushSupplierMBean"
* @jboss.xmbean
*
* @author Alphonse Bendt
* @version $Id: TypedProxyPushSupplierImpl.java,v 1.19 2009-04-25 10:08:52 andre.spiegel Exp $
*/
public class TypedProxyPushSupplierImpl extends AbstractProxyPushSupplier implements
TypedProxyPushSupplierOperations, ITypedProxy, TypedProxyPushSupplierImplMBean
{
private class PushTypedOperation implements PushOperation
{
private final Request request_;
public PushTypedOperation(Request request) {
request_ = request;
}
public void invokePush() throws Disconnected {
deliverMessageInternal(request_);
}
public void dispose() {
// No Op
}
}
private TypedPushConsumer pushConsumer_;
private org.omg.CORBA.Object typedConsumer_;
private static final TypeCode TYPE_CODE_VOID = ORB.init().get_primitive_tc(TCKind.tk_void);
private final String supportedInterface_;
private long timeSpent_ = 0;
public TypedProxyPushSupplierImpl(ITypedAdmin admin, ConsumerAdmin consumerAdmin, ORB orb,
POA poa, Configuration conf, TaskProcessor taskProcessor, PushTaskExecutorFactory pushTaskExecutorFactory,
OfferManager offerManager, SubscriptionManager subscriptionManager)
throws ConfigurationException
{
super(admin, orb, poa, conf, taskProcessor, pushTaskExecutorFactory, offerManager,
subscriptionManager, consumerAdmin);
supportedInterface_ = admin.getSupportedInterface();
}
public void disconnect_push_supplier()
{
destroy();
}
public void connect_typed_push_consumer(TypedPushConsumer typedPushConsumer)
throws AlreadyConnected, TypeError
{
logger_.info("connect typed_push_supplier");
checkIsNotConnected();
connectClient(typedPushConsumer);
pushConsumer_ = typedPushConsumer;
typedConsumer_ = pushConsumer_.get_typed_consumer();
if (!typedConsumer_._is_a(supportedInterface_))
{
throw new TypeError();
}
}
public ProxyType MyType()
{
return ProxyType.PUSH_TYPED;
}
public void isIDLAssignable(final String ifName) throws IllegalArgumentException
{
if (typedConsumer_._is_a(ifName))
{
return;
}
if (ifName.indexOf("Pull") > 0)
{
final int idx = ifName.indexOf("Pull");
final StringBuffer _nonPullIF = new StringBuffer();
_nonPullIF.append(ifName.substring(0, idx));
_nonPullIF.append(ifName.substring(idx + 4));
if (typedConsumer_._is_a(_nonPullIF.toString()))
{
return;
}
}
throw new IllegalArgumentException();
}
public boolean pushEvent()
{
final Message _message = getMessageNoBlock();
if (_message != null)
{
try
{
return deliverMessageWithRetry(_message);
} finally
{
_message.dispose();
}
}
return false;
}
private boolean deliverMessageWithRetry(Message message)
{
try
{
final Property[] _props = message.toTypedEvent();
final String _fullQualifiedOperation;
if (TypedEventMessage.OPERATION_NAME.equals(_props[0].name))
{
_fullQualifiedOperation = _props[0].value.extract_string();
}
else if (TypedEventMessage.EVENT_TYPE.equals(_props[0].name))
{
_fullQualifiedOperation = EventTypeHelper.extract(_props[0].value).type_name;
final String _idlType = EventTypeHelper.extract(_props[0].value).domain_name;
isIDLAssignable(_idlType);
}
else
{
throw new IllegalArgumentException();
}
final int _idx = _fullQualifiedOperation.lastIndexOf("::");
final String _operation = _fullQualifiedOperation.substring(_idx + 2);
final Request _request = typedConsumer_._request(_operation);
final NVList _arguments = _request.arguments();
for (int x = 1; x < _props.length; ++x)
{
_arguments.add_value(_props[x].name, _props[x].value, ARG_IN.value);
}
_request.set_return_type(TYPE_CODE_VOID);
try
{
deliverMessageInternal(_request);
return true;
} catch (Exception t)
{
final PushTypedOperation _failedOperation = new PushTypedOperation(_request);
handleFailedPushOperation(_failedOperation, t);
return false;
}
} catch (NoTranslationException e)
{
// ignore
// nothing will be delivered to the consumer
logger_.info("No Translation possible", e);
return true;
}
}
private void deliverMessageInternal(final Request request)
{
final long now = System.currentTimeMillis();
request.invoke();
timeSpent_ += (System.currentTimeMillis() - now);
resetErrorCounter();
}
protected void disconnectClient()
{
if (pushConsumer_ != null)
{
pushConsumer_.disconnect_push_consumer();
pushConsumer_ = null;
}
}
public Servant newServant()
{
return new TypedProxyPushSupplierPOATie(this);
}
protected long getCost()
{
return timeSpent_;
}
/**
* @jmx.managed-attribute
* access = "read-only"
*/
public String getSupportedInterface()
{
return supportedInterface_;
}
}