/*
 * Copyright (c) 2000, 2017 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0, which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */

package com.sun.messaging.jms.ra;

import java.net.InetAddress;
import java.util.Iterator;
import java.util.Vector;
import java.util.logging.Logger;

import javax.jms.ConnectionConsumer;
import javax.jms.Destination;
import javax.jms.ExceptionListener;
import javax.jms.JMSException;
import javax.jms.JMSSecurityException;
import javax.jms.Queue;
import javax.jms.QueueSession;
import javax.jms.ServerSessionPool;
import javax.jms.Session;
import javax.jms.Topic;
import javax.jms.TopicSession;
import javax.resource.spi.ConnectionEvent;

import com.sun.messaging.jmq.jmsclient.ContextableConnection;
import com.sun.messaging.jmq.jmsservice.JMSService;
import com.sun.messaging.jmq.jmsservice.JMSService.SessionAckMode;
import com.sun.messaging.jmq.jmsservice.JMSServiceException;
import com.sun.messaging.jmq.jmsservice.JMSServiceReply;
import com.sun.messaging.jms.MQRuntimeException;

/**
 * DirectConnection encapsulates JMS Connection behavior for MQ DIRECT mode operation.
 */
public class DirectConnection implements javax.jms.Connection, javax.jms.QueueConnection, javax.jms.TopicConnection, ContextableConnection {

    /**
     * The parent DirectConnectionFactory that created this DirectConnection
     */
    private DirectConnectionFactory dcf;

    /**
     * The JMSService for this DirectConnection
     */
    private final JMSService jmsservice;

    /**
     * The connectionId for this DirectConnection
     */
    private final long connectionId;

    /**
     * Flags whether this DirectConnection is in the Application Client Container or not
     */
    private final boolean inACC;

    /**
     * The clientID for this DirectConnection
     */
    private String clientID;

    /**
     * The ExceptionLisrtener for this DirectConnection
     */
    private ExceptionListener exceptionListener;

    /**
     * The ConnectionMetaData for this DirectConnection
     */
    private ConnectionMetaData connectionMetaData;

    /**
     * Holds the DirectXAResource that will be used for this DirectConnection
     */
    private DirectXAResource xar = null;

    /**
     * Holds the DirectSession created in this DirectConnection
     */
    private DirectSession ds = null;

    /**
     * Flags whether further creation of session is allowed
     */
    private boolean sessions_allowed = true;

    /**
     * DirectSessions made by this DirectConnection
     */
    private transient Vector<DirectSession> sessions = null;

    /**
     * Holds TemporaryDestinations created in this DirectConnection
     */
    private transient Vector<TemporaryDestination> tmp_destinations = null;

    /**
     * Holds durable consumers that need to be checked for unsubscribing
     */
    private transient Vector<DirectConsumer> durable_consumers = null;

    /**
     * The ManagedConnection associated with this DirectConnection
     */
    ManagedConnection mc = null;

    /**
     * Indicates whether this is managed via the JavaEE ManagedConnection interface
     */
    private boolean isManaged = false;
    private boolean isPooled = false;
    private volatile boolean isEnlisted = false;

    /**
     * Holds the closed state of this DirectConnection
     */
    private boolean isClosed;
    private boolean isClosing;

    /**
     * Holds the stopped state of this DirectConnection
     */
    private boolean isStopped;

    /**
     * Holds the used state of this DirectConnection
     */
    private boolean isUsed;

    /** Private sync object and sequencer for temporary destinations */
    private Object syncObj = new Object();
    private int temporaryDestinationId = 0;

    /**
     * Logging
     */
    private static transient final String _className = "com.sun.messaging.jms.ra.DirectConnection";
    private static transient final String _lgrNameOutboundConnection = "javax.resourceadapter.mqjmsra.outbound.connection";
    private static transient final String _lgrNameJMSConnection = "javax.jms.Connection.mqjmsra";
    private static transient final String _lgrNameJMSConnectionClose = "javax.jms.Connection.mqjmsra.close";
    private static transient final Logger _loggerOC = Logger.getLogger(_lgrNameOutboundConnection);
    private static transient final Logger _loggerJC = Logger.getLogger(_lgrNameJMSConnection);
    private static transient final Logger _loggerJCC = Logger.getLogger(_lgrNameJMSConnectionClose);
    private static transient final String _lgrMIDPrefix = "MQJMSRA_DC";
    private static transient final String _lgrMID_EET = _lgrMIDPrefix + "1001: ";
    private static transient final String _lgrMID_INF = _lgrMIDPrefix + "1101: ";
    private static transient final String _lgrMID_WRN = _lgrMIDPrefix + "2001: ";
    private static transient final String _lgrMID_ERR = _lgrMIDPrefix + "3001: ";
    private static transient final String _lgrMID_EXC = _lgrMIDPrefix + "4001: ";

    /** Creates a new instance of DirectConnection */
    public DirectConnection(DirectConnectionFactory cf, JMSService jmsservice, long connectionId, boolean inACC) {
        Object params[] = new Object[4];
        params[0] = cf;
        params[1] = jmsservice;
        params[2] = connectionId;
        params[3] = inACC;
        _loggerOC.entering(_className, "constructor()", params);
        this.dcf = cf;
        this.jmsservice = jmsservice;
        this.connectionId = connectionId;
        this.inACC = inACC;
        this.clientID = null;
        this.exceptionListener = null;

        // TBD:tharakan:Need to set
        this.connectionMetaData = new DirectConnectionMetaData(cf._getConfiguration());
        this.sessions = new Vector<DirectSession>();
        this.tmp_destinations = new Vector<TemporaryDestination>();
        this.durable_consumers = new Vector<DirectConsumer>();
        isClosed = false;
        isClosing = false;
        isStopped = true;
        isUsed = false;
    }

    /////////////////////////////////////////////////////////////////////////
    // methods that implement javax.jms.Connection
    /////////////////////////////////////////////////////////////////////////
    /**
     * Close the JMS Connection
     */
    public void close() throws JMSException {
        boolean willDestroy = false;
        close(willDestroy);
    }

    public void closeAndDestroy() throws JMSException {
        boolean willDestroy = true;
        close(willDestroy);
        _destroy();
    }

    /**
     * 
     * @param willDestroy whether this connection will be destroyed after this method returns
     * @throws JMSException
     */
    private void close(boolean willDestroy) throws JMSException {
        _loggerJCC.fine(_lgrMID_INF + "connectionId=" + connectionId + ":" + "close(" + willDestroy + "):");
        _loggerJC.fine(_lgrMID_INF + "connectionId=" + connectionId + ":" + "close(" + willDestroy + "):");
        synchronized (this) {
            // harmless if already closed
            if (this.isClosed) {
                return;
            } else {
                this.isClosing = true;
                this._stop();
                this._closeAndClearSessions();
                if (mc != null && mc.xaTransactionActive()) {
                    // there's still an uncommitted transaction: defer the call to _deleteTemporaryDestinations() until after the commit
                } else {
                    this._deleteTemporaryDestinations();
                }

                this.isClosing = false;
                this.isClosed = true;

                if (willDestroy) {
                    return;
                }
                // If this connection is managed, and we're not about to destroy it,
                // then it is being closed from the app and we are done.
                if (this.isManaged) {
                    this.mc.sendEvent(ConnectionEvent.CONNECTION_CLOSED, null, this);
                    return;
                }
            }
        }
        // If here, then we are not managed and must really close the connection
        this._destroy();
    }

    /**
     * Create a ConnectionConsumer in this JMS Connection
     *
     * @param destination The name of the Destination on which to create the ConnectionConsumer
     * @param messageSelector The JMS Message Selector to use when creating the ConnectionConsumer
     * @param sessionPool The ServerSessionPool to associate when creating the ConnectionConsumer
     * @param maxMessages The maxmimum number of messages that can be assigned to a ServerSession at a single time
     */
    @Override
    public ConnectionConsumer createConnectionConsumer(Destination destination, String messageSelector, ServerSessionPool sessionPool, int maxMessages)
            throws JMSException {

        _loggerJC.fine(_lgrMID_INF + "connectionId=" + connectionId + ":" + "createConnectionConsumer():" + "Destination=" + destination + ":"
                + "MessageSelector=" + messageSelector + ":" + "ServerSessionPool=" + sessionPool + ":" + "MaxMessages=" + maxMessages);
        _unsupported("createConnectionConsumer():");
        return null;
    }

    @Override
    public ConnectionConsumer createSharedConnectionConsumer(Topic topic, String subscriptionName, String messageSelector, ServerSessionPool sessionPool,
            int maxMessages) throws JMSException {

        _loggerJC.fine(_lgrMID_INF + "connectionId=" + connectionId + ":" + "createSharedConnectionConsumer():" + "Topic=" + topic + ":" + "subscriptionName="
                + subscriptionName + ":" + "MessageSelector=" + messageSelector + ":" + "ServerSessionPool=" + sessionPool + ":" + "MaxMessages="
                + maxMessages);
        _unsupported("createSharedConnectionConsumer():");
        return null;
    }

    @Override
    public ConnectionConsumer createSharedDurableConnectionConsumer(Topic topic, String subscriptionName, String messageSelector, ServerSessionPool sessionPool,
            int maxMessages) throws JMSException {

        _loggerJC.fine(_lgrMID_INF + "connectionId=" + connectionId + ":" + "createSharedDurableConnectionConsumer():" + "Topic=" + topic + ":"
                + "subscriptionName=" + subscriptionName + ":" + "MessageSelector=" + messageSelector + ":" + "ServerSessionPool=" + sessionPool + ":"
                + "MaxMessages=" + maxMessages);
        _unsupported("createSharedDurableConnectionConsumer():");
        return null;
    }

    /**
     * Create a Durable ConnectionConsumer in this JMS Connection
     *
     * @param topic The name of the Topic on which to create the durable ConnectionConsumer
     * @param messageSelector The JMS Message Selector to use when creating the ConnectionConsumer
     * @param sessionPool The ServerSessionPool to associate when creating the ConnectionConsumer
     * @param maxMessages The maxmimum number of messages that can be assigned to a ServerSession at a single time
     *
     */
    @Override
    public ConnectionConsumer createDurableConnectionConsumer(Topic topic, String subscriptionName, String messageSelector, ServerSessionPool sessionPool,
            int maxMessages) throws JMSException {

        _loggerJC.fine(_lgrMID_INF + "connectionId=" + connectionId + ":" + "createDurableConnectionConsumer():" + "Topic=" + topic + ":" + "SubscriptionName="
                + subscriptionName + ":" + "MessageSelector=" + messageSelector + ":" + "ServerSessionPool=" + sessionPool + ":" + "MaxMessages="
                + maxMessages);
        _unsupported("createDurableConnectionConsumer():");
        return (ConnectionConsumer) null;
    }

    /**
     * Create a JMS Session in this JMS Connection
     *
     * @param isTransacted Indicates whether the Session is transacted or not.
     * @param acknowledgeMode The Session acknowledgement mode
     *
     * @return The JMSSession
     */
    public Session createSession(boolean isTransacted, int acknowledgeMode) throws JMSException {
        _loggerJC.fine(_lgrMID_INF + "connectionId=" + connectionId + ":" + "createSession():" + "isTransacted=" + isTransacted + ":" + "acknowledgeMode="
                + acknowledgeMode);
        _checkIfClosed("createSession():");
        checkSessionsAllowed("createSession():");
        this.setUsed();

        SessionAckMode ackMode;
        long sessionId;
        if (ResourceAdapter._isFixCR6760301()) {
            boolean actualTransactedArg = overrideTransacted(isTransacted);
            int actualAcknowledgeModeArg = overrideAcknowledgeMode(acknowledgeMode);
            sessionId = _createSessionId(connectionId, actualTransactedArg, actualAcknowledgeModeArg);
            ackMode = _getSessionAckModeFromSessionParams(actualTransactedArg, actualAcknowledgeModeArg);
        } else {
            boolean isTransactedOverride = (this.isManaged() ? false : isTransacted);
            sessionId = _createSessionId(connectionId, isTransactedOverride, acknowledgeMode);
            ackMode = _getSessionAckModeFromSessionParams(isTransactedOverride, acknowledgeMode);
        }

        DirectSession ds = (this.isManaged() ? new DirectTransactionManagedSession(this, this.jmsservice, sessionId, ackMode)
                : new DirectSession(this, this.jmsservice, sessionId, ackMode));
        this.addSession(ds);
        return (Session) ds;
    }

    /*
     * (non-Javadoc)
     * 
     * @see javax.jms.Connection#createSession(int)
     */
    @Override
    public Session createSession(int sessionMode) throws JMSException {
        if (sessionMode == Session.SESSION_TRANSACTED) {
            return createSession(true, sessionMode);
        } else {
            return createSession(false, sessionMode);
        }
    }

    /*
     * (non-Javadoc)
     * 
     * @see javax.jms.Connection#createSession()
     */
    @Override
    public Session createSession() throws JMSException {
        return createSession(false, Session.AUTO_ACKNOWLEDGE);
    }

    /**
     * Create a JMS Session in this JMS Connection on which a RAEndpoint can consume messages
     *
     * @return The JMSSession
     */
    public Session createSessionForRAEndpoint() throws JMSException {
        _loggerJC.fine(_lgrMID_INF + "connectionId=" + connectionId + ":" + "createSessionForRAEndpoint():");
        _checkIfClosed("createSession():");
        this.setUsed();

        boolean actualTransactedArg = false;
        int actualAcknowledgeModeArg = Session.CLIENT_ACKNOWLEDGE;

        long sessionId = _createSessionId(connectionId, actualTransactedArg, actualAcknowledgeModeArg);
        SessionAckMode ackMode = _getSessionAckModeFromSessionParams(actualTransactedArg, actualAcknowledgeModeArg);
        DirectSession ds = new DirectSession(this, this.jmsservice, sessionId, ackMode);
        this.addSession(ds);
        return (Session) ds;
    }

    private boolean overrideTransacted(boolean suppliedTransactedArgument) {
        boolean actualTransactedArg;
        if (inACC) {
            // Direct mode is not supported in direct mode, but just in case
            actualTransactedArg = suppliedTransactedArgument;
        } else {
            // override args to createSession() when in an EJB or web container
            // in accordance with EJB spec section 13.3.5 "Use of JMS APIs in Transactions"
            // This isn't very clear on what happens when there is no transaction,
            // but I (Nigel) have made the decision that if XA is not being used,
            // the session should be non-transacted
            actualTransactedArg = false;
        }
        return actualTransactedArg;
    }

    private int overrideAcknowledgeMode(int suppliedAcknowledgeModeArgument) {
        int actualAcknowledgeModeArg;
        if (inACC) {
            // Direct mode is not supported in direct mode, but just in case
            actualAcknowledgeModeArg = suppliedAcknowledgeModeArgument;
        } else {
            if (suppliedAcknowledgeModeArgument == Session.CLIENT_ACKNOWLEDGE) {
                // EJB spec section 13.3.5 "Use of JMS APIs in Transactions" says
                // "The Bean Provider should not use the JMS acknowledge method either within a transaction
                // or within an unspecified transaction context. Message acknowledgment in an unspecified
                // transaction context is handled by the container."
                //
                // The same restriction applies in web container: JavaEE Spec: "EE.6.7 Java Message Service (JMS) 1.1 Requirements" says
                // "In general, the behavior of a JMS provider should be the same in both the EJB container and the web container.
                // The EJB specification describes restrictions on the use of JMS in an EJB container,
                // as well as the interaction of JMS with transactions in an EJB container.
                // Applications running in the web container should follow the same restrictions.
                actualAcknowledgeModeArg = Session.AUTO_ACKNOWLEDGE;
            } else {
                // allow auto-ack and dups-OK
                actualAcknowledgeModeArg = suppliedAcknowledgeModeArgument;
            }
        }
        return actualAcknowledgeModeArg;
    }

    /**
     * Return the ClientID that is set on the JMS Connection
     *
     * @return The Client Identifier that is set on this JMS Connection
     */
    public String getClientID() throws JMSException {
        _loggerJC.fine(_lgrMID_INF + "connectionId=" + connectionId + ":" + "getClientID():");
        _checkIfClosed("getClientID():");
        this.setUsed();
        return clientID;
    }

    /**
     * Return the ExceptionListener that is set on the JMS Connection
     *
     * @return The ExceptionListener
     */
    public ExceptionListener getExceptionListener() throws JMSException {
        _loggerJC.fine(_lgrMID_INF + "connectionId=" + connectionId + ":" + "getExceptionListener():");
        _checkIfClosed("getExceptionListener():");
        this.setUsed();
        return exceptionListener;
    }

    /**
     * Return the ConnectionMetaData for this JMS Connection
     *
     * @return The ConnectionMetaData
     */
    public ConnectionMetaData getMetaData() throws JMSException {
        _loggerJC.fine(_lgrMID_INF + "connectionId=" + connectionId + ":" + "getMetaData():");
        _checkIfClosed("getMetaData():");
        this.setUsed();
        return connectionMetaData;
    }

    /**
     * Set a CientID on the JMS Connection
     *
     * @param clientID The clientID to set on the JMS Connection
     */
    public void setClientID(String clientID) throws JMSException {
        String methodName = "setClientID()";
        _loggerJC.fine(_lgrMID_INF + "connectionId=" + connectionId + ":" + methodName);
        if (!this.inACC) {
            _unsupported(methodName);
        }
        this._checkIfClosed(methodName);
        this._setClientID(clientID);
    }

    /**
     * Set clientID to the specified value, bypassing any checks as to whether calling setClientID is allowed at this time.
     * 
     * @param clientID
     */
    @Override
    public void _setClientIDForContext(String clientID) {
        String methodName = "_setClientIDForContext()";
        _loggerJC.fine(_lgrMID_INF + "connectionId=" + connectionId + ":" + methodName);
        try {
            if (!this.inACC) {
                _unsupported(methodName);
            }
            this._checkIfClosed(methodName);
            this._setClientID(clientID);
        } catch (JMSException e) {
            throw new MQRuntimeException(e);
        }

    }

    /**
     * Set an ExceptionListener on the JMS Connection.<br>
     * This method is unsupported for Direct Connections
     *
     * @param listener The ExceptionListener to set on the JMS Connection
     */
    public void setExceptionListener(ExceptionListener listener) throws JMSException {
        String methodName = "setExceptionListener()";
        _loggerJC.fine(_lgrMID_INF + "connectionId=" + connectionId + ":" + methodName);
        if (!this.inACC) {
            _unsupported(methodName);
        }
        _checkIfClosed(methodName);
    }

    /**
     * Start the JMS Connection
     */
    public synchronized void start() throws JMSException {
        _loggerJC.fine(_lgrMID_INF + "connectionId=" + connectionId + ":" + "start():");
        _checkIfClosed("start():");
        if (!isStopped()) {
            return;
        }
        this.setUsed();
        try {
            jmsservice.startConnection(this.connectionId);
        } catch (JMSServiceException jmsse) {
            _loggerJC.warning(_lgrMID_WRN + "connectionId=" + connectionId + ":" + "start():" + "JMSService.startConnection():" + "JMSServiceException="
                    + jmsse.getMessage());
        }
        isStopped = false;
        this._startSessions();
    }

    /**
     * Stop the JMS Connection
     */
    public synchronized void stop() throws JMSException {
        String methodName = "stop()";
        _loggerJC.fine(_lgrMID_INF + methodName + ":connectionId=" + connectionId);
        if (!this.inACC) {
            _unsupported(methodName);
        }
        this._stop();
    }

    /////////////////////////////////////////////////////////////////////////
    // end javax.jms.Connection
    /////////////////////////////////////////////////////////////////////////
    /////////////////////////////////////////////////////////////////////////
    // methods that implement javax.jms.QueueConnection
    /////////////////////////////////////////////////////////////////////////
    /**
     * Create a ConnectionConsumer in this JMS QueueConnection
     *
     * @param queue The name of the Queue on which to create the ConnectionConsumer
     * @param messageSelector The JMS Message Selector to use when creating the ConnectionConsumer
     * @param sessionPool The ServerSessionPool to associate when creating the ConnectionConsumer
     * @param maxMessages The maxmimum number of messages that can be assigned to a ServerSession at a single time
     */
    public ConnectionConsumer createConnectionConsumer(Queue queue, String messageSelector, ServerSessionPool sessionPool, int maxMessages)
            throws JMSException {

        _loggerJC.fine(_lgrMID_INF + "connectionId=" + connectionId + ":" + "createConnectionConsumer():" + "Queue=" + queue + ":" + "MessageSelector="
                + messageSelector + ":" + "ServerSessionPool=" + sessionPool + ":" + "MaxMessages=" + maxMessages);
        _unsupported("createConnectionConsumer():");
        return null;
    }

    /**
     * Create a JMS QueueSession in this JMS QueueConnection
     *
     *
     */
    public QueueSession createQueueSession(boolean isTransacted, int acknowledgeMode) throws JMSException {
        _loggerJC.fine(_lgrMID_INF + "connectionId=" + connectionId + ":" + "createQueueSession():" + "isTransacted=" + isTransacted + ":" + "acknowledgeMode="
                + acknowledgeMode);
        _checkIfClosed("createQueueSession():");
        checkSessionsAllowed("createQueueSession():");
        this.setUsed();

        SessionAckMode ackMode;
        long sessionId;
        if (ResourceAdapter._isFixCR6760301()) {
            // override args
            boolean actualTransactedArg = overrideTransacted(isTransacted);
            int actualAcknowledgeModeArg = overrideAcknowledgeMode(acknowledgeMode);
            sessionId = _createSessionId(connectionId, actualTransactedArg, actualAcknowledgeModeArg);
            ackMode = _getSessionAckModeFromSessionParams(actualTransactedArg, actualAcknowledgeModeArg);
        } else {
            boolean isTransactedOverride = (this.isManaged() ? false : isTransacted);
            sessionId = _createSessionId(connectionId, isTransactedOverride, acknowledgeMode);
            ackMode = _getSessionAckModeFromSessionParams(isTransactedOverride, acknowledgeMode);
        }

        DirectSession ds = new DirectQueueSession(this, this.jmsservice, sessionId, ackMode);
        this.addSession(ds);
        return (QueueSession) ds;
    }

    /////////////////////////////////////////////////////////////////////////
    // end javax.jms.QueueConnection
    /////////////////////////////////////////////////////////////////////////
    /////////////////////////////////////////////////////////////////////////
    // methods that implement javax.jms.TopicConnection
    /////////////////////////////////////////////////////////////////////////
    /**
     * Create a ConnectionConsumer in this JMS TopicConnection
     *
     * @param topic The name of the Topic on which to create the ConnectionConsumer
     * @param messageSelector The JMS Message Selector to use when creating the ConnectionConsumer
     * @param sessionPool The ServerSessionPool to associate when creating the ConnectionConsumer
     * @param maxMessages The maxmimum number of messages that can be assigned to a ServerSession at a single time
     */
    public ConnectionConsumer createConnectionConsumer(Topic topic, String messageSelector, ServerSessionPool sessionPool, int maxMessages)
            throws JMSException {

        _loggerJC.fine(_lgrMID_INF + "connectionId=" + connectionId + ":" + "createConnectionConsumer():" + "Topic=" + topic + ":" + "MessageSelector="
                + messageSelector + ":" + "ServerSessionPool=" + sessionPool + ":" + "MaxMessages=" + maxMessages);
        _unsupported("createConnectionConsumer():");
        return (ConnectionConsumer) null;
    }

    /**
     * Create a JMS TopicSession in this JMS QueueConnection
     *
     *
     */
    public TopicSession createTopicSession(boolean isTransacted, int acknowledgeMode) throws JMSException {
        _loggerJC.fine(_lgrMID_INF + "connectionId=" + connectionId + ":" + "createTopicSession():" + "isTransacted=" + isTransacted + ":" + "acknowledgeMode="
                + acknowledgeMode);
        _checkIfClosed("createTopicSession():");
        checkSessionsAllowed("createTopicSession():");
        this.setUsed();

        SessionAckMode ackMode;
        long sessionId;
        if (ResourceAdapter._isFixCR6760301()) {
            // override args
            boolean actualTransactedArg = overrideTransacted(isTransacted);
            int actualAcknowledgeModeArg = overrideAcknowledgeMode(acknowledgeMode);
            sessionId = _createSessionId(connectionId, actualTransactedArg, actualAcknowledgeModeArg);
            ackMode = _getSessionAckModeFromSessionParams(actualTransactedArg, actualAcknowledgeModeArg);
        } else {
            boolean isTransactedOverride = (this.isManaged() ? false : isTransacted);
            sessionId = _createSessionId(connectionId, isTransactedOverride, acknowledgeMode);
            ackMode = _getSessionAckModeFromSessionParams(isTransactedOverride, acknowledgeMode);
        }

        DirectSession ds = new DirectTopicSession(this, this.jmsservice, sessionId, ackMode);
        this.addSession(ds);
        return (TopicSession) ds;
    }

    /////////////////////////////////////////////////////////////////////////
    // end javax.jms.TopicConnection
    /////////////////////////////////////////////////////////////////////////
    /////////////////////////////////////////////////////////////////////////
    // private support for javax.jms.Connection for RA use
    /////////////////////////////////////////////////////////////////////////
    /**
     * Return the ClientId (non-JMS)
     */
    public String _getClientID() {
        return this.clientID;
    }

    /**
     * Set a CientID on the JMS Connection
     *
     * @param clientID The clientID to set on the JMS Connection
     */
    public void _setClientID(String clientID) throws JMSException {
        _loggerJC.fine(_lgrMID_INF + "connectionId=" + connectionId + ":" + "_setClientID():" + "clientID=" + clientID);
        if (this.clientID != null) {
            String error = _lgrMID_WRN + "connectionId=" + connectionId + ":" + "_setclientID():" + "Error to overwrite existing clientID:" + this.clientID
                    + "with new clientID=" + clientID;
            _loggerJC.warning(error);
            throw new JMSException(error);
        }
        if (clientID == null || "".equals(clientID)) {
            String error = _lgrMID_WRN + "connectionId=" + connectionId + ":" + "_setclientID():" + "Error to set a null or empty clientID:" + clientID;
            _loggerJC.warning(error);
            throw new JMSException(error);
        }
        try {
            _loggerJC.finer(_lgrMID_INF + "connectionId=" + connectionId + ":" + "_setClientID():" + "jmsservice.clientId():" + "params=" + clientID + ":"
                    + dcf.isRAClustered() + ":" + dcf.getRANamespace());
            this.jmsservice.setClientId(this.connectionId, clientID, dcf.isRAClustered(), dcf.getRANamespace());
            this.clientID = clientID;
        } catch (JMSServiceException jmsse) {
            // XXX:tharakan:Update w/ specific error on conflict
            _loggerJC.warning(_lgrMID_WRN + "connectionId=" + connectionId + ":" + "_setClientID():" + "JMSService.setClientId():" + "JMSServiceException="
                    + jmsse.getMessage());
        }
    }

    /**
     * Unset a CientID on the JMS Connection
     */
    public void _unsetClientID() throws JMSException {
        _loggerJC.fine(_lgrMID_INF + "connectionId=" + connectionId + ":" + "_unsetClientID():");
        if (this.clientID == null) {
            return;
//           String warning = _lgrMID_WRN+
//                   "connectionId="+connectionId+":"+"_unsetclientID():"+
//                   "No existing clientID to unset";
//           _loggerJC.warning(warning);
//           throw new JMSException(warning);
        }
        try {
            _loggerJC.finer(_lgrMID_INF + "connectionId=" + connectionId + ":" + "_unsetClientID():" + "jmsservice.unclientId():");
            this.jmsservice.unsetClientId(this.connectionId);
            this.clientID = null;
        } catch (JMSServiceException jmsse) {
            _loggerJC.warning(_lgrMID_WRN + "connectionId=" + connectionId + ":" + "_unsetClientID():" + "JMSService.unsetClientId():" + "JMSServiceException="
                    + jmsse.getMessage());
        }
    }

    /**
     * Set an ExceptionListener on the JMS Connection.<br>
     * This method is unsupported for Direct Connections
     *
     * @param listener The ExceptionListener to set on the JMS Connection
     */
    public void _setExceptionListener(ExceptionListener listener) throws JMSException {
        _loggerJC.fine(_lgrMID_INF + "connectionId=" + connectionId + ":" + "_setExceptionListener()");
        this.exceptionListener = listener;
    }

    /**
     * Get the XAResource for this DirectConnection
     */
    public synchronized DirectXAResource _getXAResource() {
        if (this.xar == null) {
            this.xar = new DirectXAResource(this, this.jmsservice, this.connectionId);
        }
        return this.xar;
    }

    /**
     * Return the JMSService for this DirectConnection
     */
    protected JMSService _getJMSService() {
        return this.jmsservice;
    }

    protected synchronized void _activate(String clientId) throws JMSException {
        if (this.isManaged) {
            if (clientId != null && !"".equals(clientId)) {
                this._setClientID(clientId);
            }
            this.isPooled = false;
            this.isClosed = false;
        }
    }

    protected synchronized void _cleanup() throws JMSException {
        // NOP if this is not a managed connection
        if (this.isManaged) {
            this.isPooled = true;
            this.isUsed = false;
            this._unsetClientID();
        }
    }

    protected synchronized void _destroy() throws JMSException {
        if (!this.isClosed) {
            _loggerJC.warning(_lgrMID_WRN + "connectionId=" + connectionId + ":" + "_destroy():" + "called on a connection that was not closed.");
        }
        // NOP if this is not a managed connection
        if (this.isManaged) {
            this.isPooled = false;
        }
        try {
            jmsservice.destroyConnection(connectionId);
        } catch (JMSServiceException jmsse) {
            _loggerJC.warning(_lgrMID_WRN + "connectionId=" + connectionId + ":" + "_close():" + "JMSService.destroyConnection():" + "JMSServiceException="
                    + jmsse.getMessage());
        }
    }

    protected void _stop() throws JMSException {
        _checkIfClosed("stop():");
        if (isStopped) {
            // harmless if already stopped
            return;
        }
        isStopped = true;
        this._stopSessions();
        try {
            _loggerJC.finer(
                    _lgrMID_INF + "connectionId=" + connectionId + ":" + "stop():" + "jmsservice.stopConnection():" + "connectionId=" + this.connectionId);
            jmsservice.stopConnection(this.connectionId);
        } catch (JMSServiceException jmsse) {
            _loggerJC.warning(_lgrMID_WRN + "connectionId=" + connectionId + ":" + "stop():" + "JMSService.stopConnection():" + "JMSServiceException="
                    + jmsse.getMessage());
        }
        // XXX:tharakan:ensure all delivery stopped - do not return till stopped
    }

    /////////////////////////////////////////////////////////////////////////
    // end private support for javax.jms.Connection for RA use
    /////////////////////////////////////////////////////////////////////////
    /////////////////////////////////////////////////////////////////////////
    // MQ methods
    /////////////////////////////////////////////////////////////////////////
    /**
     * Create a session with the jmsservice and return a sessionId. Used by the methods implementing javax.jms.Connection,
     * javax,jms.QueueConnection, and javax.jms.TopicConnection
     *
     * @param connectionId The connectionId in which the session is being created.
     * @param acknowledgeMode The acknowledgment mode being used
     *
     * @return The sessionId to be used by the DirectSession object that is returned by the JMS API method
     *
     * @throws JMSException if any JMS server error occurred
     */
    private long _createSessionId(long connectionId, boolean isTransacted, int acknowledgeMode) throws JMSException {
        JMSServiceReply reply;
        long sessionId = 0L;
        SessionAckMode ackMode = this._getSessionAckModeFromSessionParams(isTransacted, acknowledgeMode);
        try {
            reply = jmsservice.createSession(connectionId, ackMode);
            try {
                sessionId = reply.getJMQSessionID();
            } catch (NoSuchFieldException nsfe) {
                String exerrmsg = _lgrMID_EXC + "JMSServiceException:Missing JMQSessionID";
                JMSException jmse = new JMSException(exerrmsg);
                jmse.initCause(nsfe);
                _loggerJC.severe(exerrmsg);
                throw jmse;
            }

        } catch (JMSServiceException jse) {
            JMSServiceReply.Status status = jse.getJMSServiceReply().getStatus();
            String failure_cause;
            switch (status) {
            case BAD_REQUEST:
                failure_cause = "invalid acknowledgment mode.";
                break;
            case NOT_ALLOWED:
                failure_cause = "acknowledgmentmode is not allowed.";
                break;
            default:
                failure_cause = "unkown JMSService server error.";
            }
            String exerrmsg = "createSession on JMSService:" + jmsservice.getJMSServiceID() + " failed for connectionId:" + connectionId + " due to "
                    + failure_cause;
            _loggerJC.severe(exerrmsg);
            JMSException jmsse = new JMSException(exerrmsg);
            jmsse.initCause(jse);
            throw jmsse;
        }
        return sessionId;
    }

    /**
     * Check if the DirectConnection is closed prior to performing an operation and throw a JMSException if the connection
     * is closed.
     *
     * @param methodname The name of the method from which this check is called
     *
     * @throws JMSException if it is closed
     */
    private void _checkIfClosed(String methodname) throws JMSException {
        if (isClosed()) {
            String closedmsg = _lgrMID_EXC + methodname + "Connection is closed:Id=" + connectionId;
            _loggerJC.warning(closedmsg);
            throw new javax.jms.IllegalStateException(closedmsg);
        }
    }

    /**
     * Check if the DirectConnection has one active Session object and throw a JMSException if an active Session object
     * already exists.
     *
     * @param methodName The name of the method from which this check is called
     *
     * @throws JMSException if an active Session object already exists for this connection
     */
    private void checkSessionsAllowed(String methodName) throws JMSException {
        if (!sessions_allowed) {
            String disallowed = _lgrMID_EXC + methodName + "An active Session object already exists for this connection, "
                    + "only one active Session object allowed per connection.";
            _loggerJC.warning(disallowed);
            throw new JMSException(disallowed);
        }
    }

    /**
     * Throw a JMSException with the appropriate message for unsupported operations.
     *
     * @param methodname The method name for which this unsupported exception is to be thrown.
     */
    private void _unsupported(String methodname) throws JMSException {
        String unsupported = _lgrMID_WRN + "Unsupported:" + methodname + ":inACC=" + this.inACC + ":connectionId=" + connectionId;
        _loggerJC.warning(unsupported);
        throw new JMSException(unsupported);
    }

    /**
     * Set this DirectConnection as used
     */
    private synchronized void setUsed() {
        this.isUsed = true;
    }

    /**
     * Return the connectionId for this Direct Connection
     *
     * @return The connectionId
     */
    public long getConnectionId() {
        return this.connectionId;
    }

    /**
     * Return the pooled / in-use state of this DirectConnection
     *
     * @return {@code true} if this connection can be pooled; {@code false} if this connection is in-use
     */
    public synchronized boolean isPooled() {
        return this.isPooled;
    }

    /**
     * Return the enlisted / un-enlisted state of this DirectConnection
     *
     * @return {@code true} if this connection is enlisted in an XA transaction {@code false} if this connection is not in
     * an XA transaction
     */
    public boolean isEnlisted() {
        return this.isEnlisted;
    }

    /**
     * Return the managed / non-managed state of this DirectConnection
     *
     * @return {@code true} if this connection is managed; {@code false} if this connection is non-managed
     */
    public boolean isManaged() {
        return this.isManaged;
    }

    /**
     * Set the managed /non-managed state of this DirectConnection
     */
    public void setManaged(boolean value, ManagedConnection mc) {
        this.isManaged = value;
        this.mc = mc;
    }

    /**
     * Set the enlisted / un-enlisted state of this DirectConnection for XA transactions
     */
    public void setEnlisted(boolean value) {
        this.isEnlisted = value;
    }

    /**
     * Return the closed state of this DirectConnection
     *
     * @return {@code true} if this connection has been closed; {@code false} otherwise
     */
    public synchronized boolean isClosed() {
        return this.isClosed;
    }

    /**
     * Returns the stopped state of this DirectConnection
     *
     * @return {@code true} if this connection has been stopped; {@code false} otherwise
     */
    public synchronized boolean isStopped() {
        return this.isStopped;
    }

    public synchronized boolean isStarted() {
        return !this.isStopped;
    }

    /**
     * Return the used state of this DirectConnection
     *
     * @return {@code true} if this connection has been used; {@code false} otherwise
     */
    public synchronized boolean isUsed() {
        return this.isUsed;
    }

    /**
     * Return the SessionAckMode enum value given the Session parameters
     *
     * @param isTransacted boolean indicates whether the Session is transacted or not
     * @param acknowledgeMode The acknowledgement mode for non-transacted sessions
     *
     * @return The SessionAckMode
     *
     * @see com.sun.messaging.jmq.jmsservice.JMSService.SessionAckMode
     * @see javax.jms.Session#AUTO_ACKNOWLEDGE javax.jms.Session.AUTO_ACKNOWLEDGE
     * @see javax.jms.Session#CLIENT_ACKNOWLEDGE javax.jms.Session.CLIENT_ACKNOWLEDGE
     * @see javax.jms.Session#DUPS_OK_ACKNOWLEDGE javax.jms.Session.DUPS_OK_ACKNOWLEDGE
     * @see com.sun.messaging.jms.Session#NO_ACKNOWLEDGE com.sun.messaging.jms.Session.NO_ACKNOWLEDGE
     */
    protected static SessionAckMode _getSessionAckModeFromSessionParams(boolean isTransacted, int acknowledgeMode) {
        SessionAckMode ackMode = SessionAckMode.UNSPECIFIED;
        if (isTransacted) {
            ackMode = SessionAckMode.TRANSACTED;
        } else {
            if (acknowledgeMode == Session.AUTO_ACKNOWLEDGE) {
                ackMode = SessionAckMode.AUTO_ACKNOWLEDGE;
            } else if (acknowledgeMode == Session.DUPS_OK_ACKNOWLEDGE) {
                ackMode = SessionAckMode.DUPS_OK_ACKNOWLEDGE;
            } else if (acknowledgeMode == Session.CLIENT_ACKNOWLEDGE) {
                ackMode = SessionAckMode.CLIENT_ACKNOWLEDGE;
            } else if (acknowledgeMode == com.sun.messaging.jms.Session.NO_ACKNOWLEDGE) {
                ackMode = SessionAckMode.NO_ACKNOWLEDGE;
            } else {
                // default
                ackMode = SessionAckMode.AUTO_ACKNOWLEDGE;
            }
        }
        return ackMode;
    }

    /**
     * Add a Session to the list of JMS Session created by this Direct Connection.
     *
     * @param session The DirectSession to be added
     */
    protected void addSession(DirectSession session) {
        this.sessions.add(session);
        ds = session;
        if (!inACC) {
            // no more sessions if we are not in the application client container
            sessions_allowed = false;
        }
    }

    /**
     * Removes a Session from the list of JMS Session created by this Direct Connection.
     *
     * @param session The DirectSession to be removed
     */
    protected void removeSession(DirectSession session) {
        boolean result = this.sessions.remove(session);
        // This session *has* to be in the list else something went wrong :)
        assert (result == true);
        ds = null;
        if (!sessions_allowed && sessions.isEmpty()) {
            sessions_allowed = true;
        }
    }

    /**
     * Add a Consumer to the list of duable consumers active in this Direct Connection.
     *
     * @param consumer The DirectConsumer to be added
     */
    protected void addDurableConsumer(DirectConsumer consumer) {
        this.durable_consumers.add(consumer);
    }

    /**
     * Remove a Consumer from the list of duable consumers active in this Direct Connection.
     *
     * @param consumer The DirectConsumer to be removed
     */
    protected void removeDurableConsumer(DirectConsumer consumer) {
        // boolean result = this.durable_consumers.remove(consumer);
        this.durable_consumers.remove(consumer);
    }

    /**
     * Return the durable_consumers Vector for this DirectConnection
     *
     * @return The durable_consumers Vector
     */
    protected Vector<DirectConsumer> _getDurableConsumers() {
        return this.durable_consumers;
    }

    /**
     * Create a physical destination using the jmsservice
     *
     * @param destination The Destination object that represents the physical destination that is to be created.
     */
    protected void _createDestination(com.sun.messaging.jmq.jmsservice.Destination destination) throws JMSException {
        JMSServiceReply _reply;
        try {
            this.jmsservice.createDestination(connectionId, destination);
        } catch (JMSServiceException jse) {
            JMSServiceReply.Status status = jse.getJMSServiceReply().getStatus();
            String failure_cause = null;
            ;
            String exerrmsg = "createDestination on JMSService:" + jmsservice.getJMSServiceID() + " failed for connectionId:" + connectionId
                    + " and Destination:" + destination.getType() + ":" + destination.getName() + ":due to ";
            JMSException jmse = null;
            switch (status) {
            case FORBIDDEN:
                failure_cause = "client unauthorized for create.";
                exerrmsg = exerrmsg + failure_cause;
                jmse = new JMSSecurityException(exerrmsg, jse.getJMSServiceReply().getErrorCode());
                break;
            case ERROR:
                failure_cause = "unkown JMSService server error.";
                break;
            default:
                failure_cause = "status =" + status;
                // expressly leave out CONFLICT as it's a NOP if the dest exists
            }
            if (jmse == null) {
                jmse = new JMSException(exerrmsg + failure_cause);
            }
            jmse.initCause(jse);
            if (status != JMSServiceReply.Status.CONFLICT) {
                _loggerJC.severe(exerrmsg);
                throw jmse;
            } else {
                _loggerJC.fine(exerrmsg);
            }
        }
    }

    /**
     * Delete a TemporaryDestination using the jmsservice
     *
     * @param t_destination The TemporaryDestination
     * @param destination The jmsservice Destination
     */
    protected void _deleteDestination(TemporaryDestination t_destination, com.sun.messaging.jmq.jmsservice.Destination destination) throws JMSException {
        JMSServiceReply _reply;
        JMSException jmse = null;
        String failure_cause = null;
        try {
            this.jmsservice.destroyDestination(connectionId, destination);
        } catch (JMSServiceException jmsse) {
            JMSServiceReply.Status status = jmsse.getJMSServiceReply().getStatus();
            switch (status) {
            case FORBIDDEN:
                failure_cause = "client unauthorized for delete.";
                break;
            case NOT_FOUND:
                failure_cause = "destination does not exist.";
                break;
            case CONFLICT:
                failure_cause = "destination has producers or consumers.";
                break;
            case ERROR:
            default:
                failure_cause = "unkown JMSService server error.";
                break;
            }
            String exerrmsg = "destroyDestination on JMSService:" + jmsservice.getJMSServiceID() + " failed for connectionId:" + connectionId
                    + " and Destination:" + destination.getType() + ":" + destination.getName() + ":due to " + failure_cause;
            jmse = new JMSException(exerrmsg);
            jmse.initCause(jmsse);
            _loggerJC.warning(exerrmsg);
        }
        if (jmse != null) {
            throw jmse;
        }
    }

    /**
     * Start a transaction on this DirectConnection
     */
    protected long _startTransaction(String fromMethod) throws JMSException {
        JMSServiceReply reply = null;
        long _transactionId = 0L;
        try {
            reply = jmsservice.startTransaction(this.connectionId, 0L, null, 0, JMSService.TransactionAutoRollback.UNSPECIFIED, 0L);
            try {
                _transactionId = reply.getJMQTransactionID();
            } catch (NoSuchFieldException nsfe) {
                String exerrmsg = _lgrMID_EXC + ":_startTransaction from " + fromMethod + ":JMSServiceException:Missing JMQTransactionID";
                JMSException jmse = new JMSException(exerrmsg);
                jmse.initCause(nsfe);
                _loggerJC.severe(exerrmsg);
                throw jmse;
            }
        } catch (JMSServiceException jmsse) {
            String exerrmsg = _lgrMID_EXC + ":_startTransaction from " + fromMethod + "JMSServiceException=" + jmsse.getMessage();
            JMSException jmse = new JMSException(exerrmsg);
            jmse.initCause(jmsse);
            _loggerJC.severe(exerrmsg);
            throw jmse;
        }
        return _transactionId;
    }

    /**
     * Commit a transaction on this DirectConnection
     */
    protected void _commitTransaction(String methodName, long transactionId) throws JMSException {
        // JMSServiceReply reply = null;
        try {
            // reply = jmsservice.commitTransaction(
            jmsservice.commitTransaction(this.connectionId, transactionId, null, 0);
        } catch (JMSServiceException jmsse) {
            String exerrmsg = _lgrMID_WRN + "connectionId=" + this.connectionId + ":" + methodName + ":JMSServiceException=" + jmsse.getMessage();
            JMSException jmse = new JMSException(exerrmsg);
            jmse.initCause(jmsse);
            _loggerJC.severe(exerrmsg);
            throw jmse;
        }
    }

    /**
     * Rollback a transaction on this DirectConnection
     */
    protected void _rollbackTransaction(String methodName, long transactionId) throws JMSException {
        // JMSServiceReply reply = null;
        try {
            // reply = jmsservice.rollbackTransaction(
            jmsservice.rollbackTransaction(this.connectionId, transactionId, null, true, true);
        } catch (JMSServiceException jmsse) {
            String exerrmsg = _lgrMID_WRN + "connectionId=" + this.connectionId + ":" + methodName + ":JMSServiceException=" + jmsse.getMessage();
            JMSException jmse = new JMSException(exerrmsg);
            jmse.initCause(jmsse);
            _loggerJC.severe(exerrmsg);
            throw jmse;
        }
    }

    /**
     * Return the next TemporaryDestinationId
     *
     * @return The next Id for use in creating a TemporaryDestination
     */
    protected int nextTemporaryDestinationId() {
        synchronized (this.syncObj) {
            this.temporaryDestinationId++;
            return this.temporaryDestinationId;
        }
    }

    /**
     * Return the connection-dependant TemporaryDestination identifier
     *
     */
    protected String _getConnectionIdentifierForTemporaryDestination() {
        StringBuilder sb;
        try {
            sb = new StringBuilder(InetAddress.getLocalHost().getHostAddress());
        } catch (Exception ex) {
            sb = new StringBuilder("127.0.0.1");
        }
        if (this.clientID != null) {
            sb.append(":" + this.clientID);
        }
        sb.append("/" + this.connectionId);
        return sb.toString();
    }

    /**
     * Add a TemporaryDestination to the list of Temporary Destinations created by this Direct Connection.
     *
     * @param t_destination The TemporaryDestination to be added
     */
    protected void addTemporaryDestination(TemporaryDestination t_destination) {
        this.tmp_destinations.add(t_destination);
    }

    /**
     * Remove a TemporaryDestination from the list of Temporary Destinations created by this Direct Connection.
     *
     * @param t_destination The TemporaryDestination to be removed
     */
    protected void removeTemporaryDestination(TemporaryDestination t_destination) {
        boolean result = this.tmp_destinations.remove(t_destination);
        // This t_desatination *has* to be in the list else something is wrong :)
        assert (result == true);
    }

    /**
     * Checks whether a TemporaryDestination exists in the list of TemporaryDestination objects created by this Direct
     * Connection.
     *
     * @param t_destination The TemporaryDestination to be found
     */
    protected boolean _hasTemporaryDestination(TemporaryDestination t_destination) {
        return this.tmp_destinations.contains(t_destination);
    }

    /**
     * Checks whether a TemporaryDestination has consumers in this DirectConnection.
     *
     * @param t_destination The TemporaryDestination to be checked for consumers
     */
    protected boolean _hasConsumers(TemporaryDestination t_destination) {
        return (t_destination._getConsumerCount() > 0);
    }

    /**
     * Start the session in the sessions table
     */
    private void _startSessions() {
        // cycle through sessions and start them one by one
        DirectSession ds = null;
        Iterator<DirectSession> k = this.sessions.iterator();
        while (k.hasNext()) {
            ds = k.next();
            ds._start();
        }
    }

    /**
     * Stop the session in the sessions table
     */
    private void _stopSessions() {
        // cycle through sessions and stop them one by one
        DirectSession ds = null;
        Iterator<DirectSession> k = this.sessions.iterator();
        while (k.hasNext()) {
            ds = k.next();
            ds._stop();
        }
    }

    /**
     * Close and clear sessions table
     */
    private void _closeAndClearSessions() {
        // cycle through sessions and close them one by one
        DirectSession ds = null;
        Iterator<DirectSession> k = this.sessions.iterator();
        while (k.hasNext()) {
            ds = k.next();
            try {
                ds._close();
                k.remove();
            } catch (JMSException jmsedsc) {
                _loggerJC.warning(_lgrMID_WRN + "connectionId=" + this.connectionId + ":" + "close_session:" + "sessionId:" + ds.getSessionId()
                        + ":JMSException=" + jmsedsc.getMessage());
            }
        }
        this.sessions.clear();
        sessions_allowed = true;
        this.ds = null;
    }

    /**
     * Delete this connections temporary destinations
     */
    protected void _deleteTemporaryDestinations() throws JMSException {
        // cycle through tmp_destinations and delete them one by one
        TemporaryDestination td = null;
        Iterator<TemporaryDestination> k = this.tmp_destinations.iterator();
        while (k.hasNext()) {
            td = k.next();
            try {
                td._delete();
                k.remove();
            } catch (JMSException jmsetdd) {
                _loggerJC.warning(_lgrMID_WRN + "connectionId=" + this.connectionId + ":" + "delete_temporary_destination=" + td.getName() + ":JMSException="
                        + jmsetdd.getMessage());
            }
        }
        this.tmp_destinations.clear();
    }

    /**
     * Incrments the consumer count when a TemporaryDestination is used
     */
    protected void _incrementTemporaryDestinationUsage(TemporaryDestination destination) throws JMSException {
        destination._incrementConsumerCount();
    }

    /**
     * Decrements the consumer count when a TemporaryDestination is used
     */
    protected void _decrementTemporaryDestinationUsage(TemporaryDestination destination) throws JMSException {
        destination._decrementConsumerCount();
    }

    /**
     * Check whether the connection has been closed and, if it has been, delete any temporary destinations which we could
     * not delete until the transaction was committed
     * 
     * @throws JMSException
     */
    public void deleteTemporaryDestinationsIfClosed() throws JMSException {
        if (isClosed) {
            _deleteTemporaryDestinations();
        }
    }

}
