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 java.util.Collections;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
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.ARG_OUT;
import org.omg.CORBA.Any;
import org.omg.CORBA.InterfaceDef;
import org.omg.CORBA.InterfaceDefHelper;
import org.omg.CORBA.NVList;
import org.omg.CORBA.ORB;
import org.omg.CORBA.OperationDescription;
import org.omg.CORBA.Request;
import org.omg.CORBA.InterfaceDefPackage.FullInterfaceDescription;
import org.omg.CosEventChannelAdmin.AlreadyConnected;
import org.omg.CosEventChannelAdmin.TypeError;
import org.omg.CosEventComm.Disconnected;
import org.omg.CosNotifyChannelAdmin.ProxyType;
import org.omg.CosNotifyChannelAdmin.SupplierAdmin;
import org.omg.CosTypedEventComm.TypedPullSupplier;
import org.omg.CosTypedNotifyChannelAdmin.TypedProxyPullConsumerOperations;
import org.omg.CosTypedNotifyChannelAdmin.TypedProxyPullConsumerPOATie;
import org.omg.PortableServer.POA;
import org.omg.PortableServer.Servant;
/**
* @jmx.mbean extends = "AbstractProxyConsumerMBean"
* @jboss.xmbean
*
* @author Alphonse Bendt
* @version $Id: TypedProxyPullConsumerImpl.java,v 1.15 2009-04-25 10:08:52 andre.spiegel Exp $
*/
public class TypedProxyPullConsumerImpl extends AbstractProxyConsumer implements
TypedProxyPullConsumerOperations, MessageSupplier, MessageSupplierDelegate, ITypedProxy,
TypedProxyPullConsumerImplMBean
{
private String[] tryPullOperations_;
private TypedPullSupplier pullSupplier_;
private org.omg.CORBA.Object typedPullSupplier_;
private InterfaceDef interfaceDef_;
private final String supportedInterface_;
private final Map operationDescriptions_ = new HashMap();
private final Map fullQualifiedOperationNames_ = new HashMap();
private final PullMessagesUtility pollUtil_;
private long pollInterval_;
private final PullMessagesOperation pullMessagesOperation_;
public TypedProxyPullConsumerImpl(ITypedAdmin admin, SupplierAdmin supplierAdmin, ORB orb,
POA poa, Configuration config, TaskProcessor taskProcessor,
MessageFactory messageFactory, OfferManager offerManager,
SubscriptionManager subscriptionManager)
{
super(admin, orb, poa, config, taskProcessor, messageFactory, supplierAdmin, offerManager,
subscriptionManager);
supportedInterface_ = admin.getSupportedInterface();
pollUtil_ = new PullMessagesUtility(taskProcessor, this);
pollInterval_ = config.getAttributeAsLong(Attributes.PULL_CONSUMER_POLL_INTERVAL,
Default.DEFAULT_PULL_CONSUMER_POLL_INTERVAL);
pullMessagesOperation_ = new PullMessagesOperation(this);
}
// ////////////////////////////
public void connect_typed_pull_supplier(TypedPullSupplier typedPullSupplier)
throws AlreadyConnected, TypeError
{
logger_.info("connect typed_pull_supplier");
checkIsNotConnected();
connectClient(typedPullSupplier);
pullSupplier_ = typedPullSupplier;
typedPullSupplier_ = pullSupplier_.get_typed_supplier();
interfaceDef_ = InterfaceDefHelper.narrow(typedPullSupplier_._get_interface_def());
if (interfaceDef_ == null)
{
throw new TypeError("Could not access Interface Definition for TypedPullSupplier [" + typedPullSupplier_ + "]");
}
if (!typedPullSupplier_._is_a(supportedInterface_))
{
throw new TypeError();
}
pollUtil_.startTask(pollInterval_);
}
private String[] getTryPullOperations()
{
if (tryPullOperations_ == null)
{
FullInterfaceDescription _fullIfDescription = interfaceDef_.describe_interface();
for (int x = 0; x < _fullIfDescription.operations.length; ++x)
{
if (_fullIfDescription.operations[x].name.startsWith("try_"))
{
operationDescriptions_.put(_fullIfDescription.operations[x].name,
_fullIfDescription.operations[x]);
}
}
tryPullOperations_ = (String[]) operationDescriptions_.keySet().toArray(
new String[operationDescriptions_.size()]);
}
return tryPullOperations_;
}
public MessageSupplierDelegate.PullResult pullMessages()
{
final String[] _tryPullOperations = getTryPullOperations();
final Map _successFulRequests = new HashMap();
for (int x = 0; x < _tryPullOperations.length; ++x)
{
Request _request = prepareRequest(_tryPullOperations[x]);
if (logger_.isDebugEnabled())
{
logger_.debug("invoke " + _tryPullOperations[x]);
}
try
{
_request.invoke();
Any _result = _request.result().value();
boolean _success = _result.extract_boolean();
if (_success)
{
String _operationNameWithoutTry = _tryPullOperations[x].substring(4);
_successFulRequests.put(_operationNameWithoutTry, _request);
}
} catch (Exception e)
{
if (logger_.isInfoEnabled())
{
String _mesg = "Operation " + _tryPullOperations[x] + " failed: Ignore";
if (logger_.isDebugEnabled())
{
logger_.debug(_mesg, e);
}
else
{
logger_.info(_mesg);
}
}
}
}
return new MessageSupplierDelegate.PullResult(Collections.unmodifiableMap(_successFulRequests), true);
}
public void queueMessages(PullResult data)
{
final Map _successfulRequests = (Map) data.data_;
for (Iterator i = _successfulRequests.keySet().iterator(); i.hasNext();)
{
String _operationNameWithoutTry = (String) i.next();
Request _request = (Request) _successfulRequests.get(_operationNameWithoutTry);
String _operationName = getFullQualifiedName(_operationNameWithoutTry);
Message _mesg = getMessageFactory().newMessage(supportedInterface_, _operationName,
_request.arguments(), this);
checkMessageProperties(_mesg);
processMessage(_mesg);
}
}
private OperationDescription getOperationDescription(String operation)
{
return (OperationDescription) operationDescriptions_.get(operation);
}
private String getFullQualifiedName(String operation)
{
String _fullQualifiedName = (String) fullQualifiedOperationNames_.get(operation);
if (_fullQualifiedName == null)
{
_fullQualifiedName = interfaceDef_.lookup(operation).absolute_name();
fullQualifiedOperationNames_.put(operation, _fullQualifiedName);
}
return _fullQualifiedName;
}
private Request prepareRequest(String operation)
{
final Request _request = typedPullSupplier_._request(operation);
final NVList _args = _request.arguments();
final OperationDescription _operationDescription = getOperationDescription(operation);
for (int x = 0; x < _operationDescription.parameters.length; ++x)
{
final Any _any = getORB().create_any();
_any.type(_operationDescription.parameters[x].type);
_args.add_value(_operationDescription.parameters[x].name, _any, ARG_OUT.value);
}
_request.set_return_type(_operationDescription.result);
return _request;
}
public void disconnect_pull_consumer()
{
destroy();
}
public ProxyType MyType()
{
return ProxyType.PULL_TYPED;
}
public void disconnectClient()
{
pollUtil_.stopTask();
if (pullSupplier_ != null)
{
pullSupplier_.disconnect_pull_supplier();
pullSupplier_ = null;
}
}
public Servant newServant()
{
return new TypedProxyPullConsumerPOATie(this);
}
/**
* @jmx.managed-attribute access = "read-only"
*/
public String getSupportedInterface()
{
return supportedInterface_;
}
public void runPullMessage() throws Disconnected
{
pullMessagesOperation_.runPull();
}
}