/*
 * 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.io.Serializable;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.Vector;
import java.util.logging.Logger;

import javax.jms.BytesMessage;
import javax.jms.Destination;
import javax.jms.InvalidDestinationException;
import javax.jms.InvalidSelectorException;
import javax.jms.JMSSecurityException;
import javax.jms.JMSException;
import javax.jms.MapMessage;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.MessageFormatException;
import javax.jms.MessageProducer;
import javax.jms.ObjectMessage;
import javax.jms.Queue;
import javax.jms.QueueBrowser;
import javax.jms.QueueReceiver;
import javax.jms.QueueSender;
import javax.jms.Session;
import javax.jms.StreamMessage;
import javax.jms.TextMessage;
import javax.jms.Topic;
import javax.jms.TopicPublisher;
import javax.jms.TopicSubscriber;

import com.sun.messaging.AdministeredObject;
import com.sun.messaging.jmq.io.JMSPacket;
import com.sun.messaging.jmq.io.SysMessageID;
import com.sun.messaging.jmq.jmsclient.ExceptionHandler;
import com.sun.messaging.jmq.jmsclient.resources.ClientResources;
import com.sun.messaging.jmq.jmsserver.util.BrokerException;
import com.sun.messaging.jmq.jmsservice.ConsumerClosedNoDeliveryException;
import com.sun.messaging.jmq.jmsservice.JMSAck;
import com.sun.messaging.jmq.jmsservice.JMSService;
import com.sun.messaging.jmq.jmsservice.JMSService.MessageAckType;
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.IllegalStateException;

/**
 * DirectSession encapsulates JMS Session behavior for MQ DIRECT mode operation
 */
public class DirectSession implements javax.jms.Session, javax.jms.QueueSession, javax.jms.TopicSession {

    /**
     * The JMSService for this DirectSession
     */
    protected JMSService jmsservice;

    /**
     * The parent DirectConnection that created this DirectSession
     */
    protected DirectConnection dc;

    /**
     * The connectionId of the parent DirectConnectio
     */
    protected long connectionId;

    /**
     * The sessionId for this DirectSession
     */
    protected long sessionId;

    /**
     *
     */
    protected SessionAckMode ackMode;

    /**
     * Holds the closed state of this DirectSession
     */
    protected boolean isClosed;
    protected boolean isClosing;

    /**
     * Holds the stopped state of this DirectSession
     */
    protected boolean isStopped;

    /**
     * Indicates whether the DirectSession is servicing an Async Consumer. When a session has an async consumer on it, it
     * can no longer be used by any thread other than the thread that delivers messages to that asynch consumer.
     */
    protected boolean isAsync;
    /** inDeliver is true as long as the session is delivering a message */
    protected boolean inDeliver;
    /** Holds the ThreadId of the server Thread used to deliver messages */
    protected long deliverThreadId = 0L;
    protected boolean enableThreadCheck = false;

    /** Indicates whether this DirectSesion is being used for an MDB */
    protected boolean isMDBSession = false;

    /**
     * Holds the xaTransacted state of this DirectSession
     */
    private boolean isXATransacted;

    /** Holds the transactionId of this DirectSession if it is transcated */
    protected long transactionId = 0L;
    protected boolean ackOnFetch = false;

    /**
     * DirectConsumers made by this DirectSession
     */
    private transient Vector<DirectConsumer> consumers = null;

    /**
     * Asynch consumers in this DirectSession
     */
    private transient Vector<DirectConsumer> asyncConsumers = null;

    /**
     * DirectProducers made by this DirectSession
     */
    private transient Vector<DirectProducer> producers = null;

    /**
     * DirectBrowsers made by this DirectSession
     */
    private transient Vector<DirectQueueBrowser> browsers = null;

    /**
     * Unacknowledged messages' SysMessageID objects kept in order for recover
     */
    private transient ArrayList<SysMessageID> unackedMessageIDs = null;

    /**
     * Unacknowledged messages'consumerId longs kept in order for recover
     */
    private transient ArrayList<Long> unackedConsumerIDs = null;

    /**
     * Logging
     */
    private static transient final String _className = "com.sun.messaging.jms.ra.DirectSession";
    private static transient final String _lgrNameOutboundConnection = "javax.resourceadapter.mqjmsra.outbound.connection";
    private static transient final String _lgrNameJMSSession = "javax.jms.Session.mqjmsra";
    protected static transient final Logger _loggerOC = Logger.getLogger(_lgrNameOutboundConnection);
    protected static transient final Logger _loggerJS = Logger.getLogger(_lgrNameJMSSession);
    private static transient final String _lgrMIDPrefix = "MQJMSRA_DS";
    protected static transient final String _lgrMID_EET = _lgrMIDPrefix + "1001: ";
    protected static transient final String _lgrMID_INF = _lgrMIDPrefix + "1101: ";
    protected static transient final String _lgrMID_WRN = _lgrMIDPrefix + "2001: ";
    protected static transient final String _lgrMID_ERR = _lgrMIDPrefix + "3001: ";
    protected static transient final String _lgrMID_EXC = _lgrMIDPrefix + "4001: ";

    /** For optimized logging */
    protected static final int _logLevel;
    protected static final boolean _logFINE;

    static {
//        _loggerOC = Logger.getLogger(_lgrNameOutboundConnection);
//        _loggerJS = Logger.getLogger(_lgrNameJMSSession);

        int tmplevel = java.util.logging.Level.INFO.intValue();
        boolean tmplogfine = false;
        java.util.logging.Level _level = _loggerJS.getLevel();
        if (_level != null) {
            tmplevel = _level.intValue();
            if (tmplevel <= java.util.logging.Level.FINE.intValue()) {
                tmplogfine = true;
            }
        }
        _logLevel = tmplevel;
        _logFINE = tmplogfine;
    }

    /** Creates a new instance of DirectSession */
    public DirectSession(DirectConnection dc, JMSService jmsservice, long sessionId, SessionAckMode ackMode) throws JMSException {

        Object params[] = new Object[4];
        params[0] = dc;
        params[1] = jmsservice;
        params[2] = sessionId;
        params[3] = ackMode;
        _loggerOC.entering(_className, "constructor()", params);
        this.dc = dc;
        this.jmsservice = jmsservice;
        this.connectionId = dc.getConnectionId();
        this.sessionId = sessionId;
        this.ackMode = ackMode;
        producers = new Vector<DirectProducer>();
        consumers = new Vector<DirectConsumer>();
        asyncConsumers = new Vector<DirectConsumer>();
        browsers = new Vector<DirectQueueBrowser>();
        unackedMessageIDs = new ArrayList<SysMessageID>();
        unackedConsumerIDs = new ArrayList<Long>();

        _initSession();
    }

    /////////////////////////////////////////////////////////////////////////
    // methods that implement javax.jms.Session
    /////////////////////////////////////////////////////////////////////////
    /**
     * Close the JMS Session
     */
    public synchronized void close() throws JMSException {
        _loggerJS.fine(_lgrMID_INF + "sessionId=" + sessionId + ":" + "close()");
        // harmless if already closed
        if (isClosed) {
            return;
        } else {
            dc.removeSession(this);
            this._close();
        }
    }

    /**
     * Commit all messages acknowledged in this JMS Sesssion
     */
    public void commit() throws JMSException {
        String methodName = "commit()";
        _loggerJS.fine(_lgrMID_INF + "sessionId=" + sessionId + ":" + methodName);
        // XXX:handle commit inside deliver() includes the current message
        this._checkIfClosed(methodName);
        this._checkTransactedState(methodName, true); // allow only if transacted
        // JMSServiceReply reply = null;
        try {
            // reply = jmsservice.commitTransaction(
            jmsservice.commitTransaction(this.connectionId, this.transactionId, null, 0);
        } catch (JMSServiceException jmsse) {
            _loggerJS.warning(_lgrMID_WRN + "sessionId=" + sessionId + ":" + methodName + ":JMSServiceException=" + jmsse.getMessage());
        }
        this._startTransaction(methodName);
    }

    /**
     * Create a QueueBrowser to peek at the messages on the specified queue
     */
    public QueueBrowser createBrowser(Queue queue) throws JMSException {
        return (QueueBrowser) this._createAndAddBrowser("createBrowser(Queue)", queue, null);
    }

    /**
     * Create a QueueBrowser to peek at the messages on the specified queue using a message selector
     */
    public QueueBrowser createBrowser(Queue queue, String selector) throws JMSException {
        return (QueueBrowser) this._createAndAddBrowser("createBrowser(Queue, Selector)", queue, selector);
    }

    /**
     * Create a BytesMessage
     */
    public BytesMessage createBytesMessage() throws JMSException {
        String methodName = "createBytesMessage()";
        if (_logFINE) {
            _loggerJS.fine(_lgrMID_INF + "sessionId=" + sessionId + ":" + methodName);
        }
        this._checkIfClosed(methodName);
        return (BytesMessage) new DirectBytesPacket(this);

    }

    /**
     * Create a MessageConsumer for the specified Destination
     */
    public MessageConsumer createConsumer(Destination destination) throws JMSException {
        return (MessageConsumer) this._createAndAddConsumer("createConsumer(Destination)", destination, null, false);
    }

    /**
     * Create a MessageConsumer for the specified Destination using a selector
     */
    public MessageConsumer createConsumer(Destination destination, String selector) throws JMSException {
        return (MessageConsumer) this._createAndAddConsumer("createConsumer(Destination, selector)", destination, selector, false);
    }

    /**
     * Create a MessageConsumer for the specified Destination using a selector and specifying whether messages published by
     * its own connection should be delivered to it.
     */
    public MessageConsumer createConsumer(Destination destination, String selector, boolean noLocal) throws JMSException {
        return (MessageConsumer) this._createAndAddConsumer("createConsumer(Destination, selector, noLocal)", destination, selector, noLocal);
    }

    /**
     * Create a TopicSubscriber for the specified Topic with the specified subscription name
     */
    public TopicSubscriber createDurableSubscriber(Topic topic, String name) throws JMSException {
        return (TopicSubscriber) this._createAndAddConsumer("createDurableSubscriber(Topic, name)", topic, null, name, true, false, false, false);
    }

    /**
     * Create a TopicSubscriber for the specified Topic with the specified subscription name and selector and specifying
     * whether messages published by its own connection should be delivered to it.
     */
    public TopicSubscriber createDurableSubscriber(Topic topic, String name, String selector, boolean noLocal) throws JMSException {
        return (TopicSubscriber) this._createAndAddConsumer("createDurableSubscriber(Topic, name, selector, noLocal)", topic, selector, name, true, false,
                false, noLocal);
    }

    /**
     * Create a TopicSubscriber for the specified Topic with the specified subscription name
     */
    @Override
    public MessageConsumer createDurableConsumer(Topic topic, String name) throws JMSException {
        return createDurableSubscriber(topic, name);
    }

    /**
     * Create a TopicSubscriber for the specified Topic with the specified subscription name and selector and specifying
     * whether messages published by its own connection should be delivered to it.
     */
    @Override
    public MessageConsumer createDurableConsumer(Topic topic, String name, String messageSelector, boolean noLocal) throws JMSException {
        return createDurableSubscriber(topic, name, messageSelector, noLocal);
    }

    @Override
    public MessageConsumer createSharedConsumer(Topic topic, String sharedSubscriptionName) throws JMSException {
        return createSharedConsumer(topic, sharedSubscriptionName, null);
    }

    @Override
    public MessageConsumer createSharedConsumer(Topic topic, String sharedSubscriptionName, String messageSelector) throws JMSException {
        boolean noLocal = false;
        return (TopicSubscriber) this._createAndAddConsumer("createSharedConsumer(Topic, sharedSubscriptionName, messageSelector)", topic, messageSelector,
                sharedSubscriptionName, false, true, true, noLocal);
    }

    @Override
    public MessageConsumer createSharedDurableConsumer(Topic topic, String name) throws JMSException {
        return createSharedDurableConsumer(topic, name, null);
    }

    @Override
    public MessageConsumer createSharedDurableConsumer(Topic topic, String name, String messageSelector) throws JMSException {
        boolean noLocal = false;
        return (TopicSubscriber) this._createAndAddConsumer("createSharedDurableConsumer(Topic, name, messageSelector)", topic, messageSelector, name, true,
                true, true, noLocal);
    }

    /**
     * Create a MapMessage
     */
    public MapMessage createMapMessage() throws JMSException {
        String methodName = "createMapMessage()";
        if (_logFINE) {
            _loggerJS.fine(_lgrMID_INF + "sessionId=" + sessionId + ":" + methodName);
        }
        this._checkIfClosed(methodName);
        return (MapMessage) new DirectMapPacket(this);
    }

    /**
     * Create a Message
     */
    public Message createMessage() throws JMSException {
        String methodName = "createMessage()";
        if (_logFINE) {
            _loggerJS.fine(_lgrMID_INF + "sessionId=" + sessionId + ":" + methodName);
        }
        this._checkIfClosed(methodName);
        return (Message) new DirectPacket(this);
    }

    /**
     * Create a ObjectMessage
     */
    public ObjectMessage createObjectMessage() throws JMSException {
        String methodName = "createObjectMessage()";
        if (_logFINE) {
            _loggerJS.fine(_lgrMID_INF + "sessionId=" + sessionId + ":" + methodName);
        }
        this._checkIfClosed(methodName);
        return (ObjectMessage) new DirectObjectPacket(this, null);
    }

    /**
     * Create a ObjectMessage
     */
    public ObjectMessage createObjectMessage(Serializable object) throws JMSException {
        String methodName = "createObjectMessage(object)";
        if (_logFINE) {
            _loggerJS.fine(_lgrMID_INF + "sessionId=" + sessionId + ":" + methodName);
        }
        this._checkIfClosed(methodName);
        return (ObjectMessage) new DirectObjectPacket(this, object);
    }

    /**
     * Create a MessageProducer for the specified Destination
     */
    public MessageProducer createProducer(Destination destination) throws JMSException {
        return (MessageProducer) this._createAndAddProducer("createProducer()", destination);
        /*
         * String methodName = "createProducer()"; if (_logFINE){ _loggerJS.fine(_lgrMID_INF + "sessionId=" + sessionId +
         * ":"+methodName+"destination="+destination); } this._checkIfClosed(methodName); if (destination !=null) { //Spcified
         * destination case String _name = null; com.sun.messaging.jmq.jmsservice.Destination.Type _type =
         * com.sun.messaging.jmq.jmsservice.Destination.Type.QUEUE; com.sun.messaging.jmq.jmsservice.Destination.Life _life =
         * com.sun.messaging.jmq.jmsservice.Destination.Life.STANDARD;
         * 
         * if (destination instanceof javax.jms.Queue){ _name = ((Queue)destination).getQueueName(); _type =
         * com.sun.messaging.jmq.jmsservice.Destination.Type.QUEUE; if (destination instanceof javax.jms.TemporaryQueue){ _life
         * = com.sun.messaging.jmq.jmsservice.Destination.Life.TEMPORARY; } } if (destination instanceof javax.jms.Topic){ _name
         * = ((Topic)destination).getTopicName(); _type = com.sun.messaging.jmq.jmsservice.Destination.Type.TOPIC; if
         * (destination instanceof javax.jms.TemporaryTopic){ _life =
         * com.sun.messaging.jmq.jmsservice.Destination.Life.TEMPORARY; } } com.sun.messaging.jmq.jmsservice.Destination
         * _destination = new com.sun.messaging.jmq.jmsservice.Destination(_name, _type, _life); //XXX:tharakan:Need to Verify
         * Destination first. //dc._verifyDestination(_destination); dc._createDestination(_destination); long producerId =
         * _createProducerId(_destination); DirectProducer dp = new DirectProducer(this, jmsservice, producerId, destination,
         * _destination); this.addProducer(dp); return (MessageProducer)dp; } else { DirectProducer dp = new
         * DirectProducer(this, jmsservice); this.addProducer(dp); return (MessageProducer)dp; }
         */
    }

    /**
     * Create a Queue identity object with the specified queue name
     *
     * @param queueName The name of the Queue Destination
     *
     * @throws InvalidDestinationException If the queueName contains illegal syntax.
     */
    public Queue createQueue(String queueName) throws JMSException {
        String methodName = "createQueue(queueName)";
        _loggerJS.fine(_lgrMID_INF + "sessionId=" + sessionId + ":" + methodName + "=" + queueName);
        this._checkIfClosed(methodName);
        return (Queue) new com.sun.messaging.BasicQueue(queueName);
    }

    /**
     * Create a StreamMessage
     */
    public StreamMessage createStreamMessage() throws JMSException {
        String methodName = "createStreamMessage()";
        if (_logFINE) {
            _loggerJS.fine(_lgrMID_INF + "sessionId=" + sessionId + ":" + methodName);
        }
        this._checkIfClosed(methodName);
        return (StreamMessage) new DirectStreamPacket(this);

    }

    /**
     * Create a TemporaryQueue identity object
     */
    public javax.jms.TemporaryQueue createTemporaryQueue() throws JMSException {
        String methodName = "createTemporaryQueue()";
        if (_logFINE) {
            _loggerJS.fine(_lgrMID_INF + "sessionId=" + sessionId + ":" + methodName);
        }
        this._checkIfClosed(methodName);
        TemporaryQueue tq = new TemporaryQueue(this.dc);
        this.dc._createDestination(tq._getDestination());
        this.dc.addTemporaryDestination(tq);
        return tq;
    }

    /**
     * Create a TemporaryTopic identity object
     */
    public javax.jms.TemporaryTopic createTemporaryTopic() throws JMSException {
        String methodName = "createTemporaryTopic()";
        if (_logFINE) {
            _loggerJS.fine(_lgrMID_INF + "sessionId=" + sessionId + ":" + methodName);
        }
        this._checkIfClosed(methodName);
        TemporaryTopic tt = new TemporaryTopic(this.dc);
        this.dc._createDestination(tt._getDestination());
        this.dc.addTemporaryDestination(tt);
        return tt;
    }

    /**
     * Create a TextMessage
     */
    public TextMessage createTextMessage() throws JMSException {
        String methodName = "createTextMessage()";
        if (_logFINE) {
            _loggerJS.fine(_lgrMID_INF + "sessionId=" + sessionId + ":" + methodName);
        }
        this._checkIfClosed(methodName);
        return (TextMessage) new DirectTextPacket(this, null);
    }

    /**
     * Create a TextMessage initialized with the specified String
     */
    public TextMessage createTextMessage(String text) throws JMSException {
        String methodName = "createTextMessage(text)";
        if (_logFINE) {
            _loggerJS.fine(_lgrMID_INF + "sessionId=" + sessionId + ":" + methodName);
        }
        this._checkIfClosed(methodName);
        return (TextMessage) new DirectTextPacket(this, text);
    }

    /**
     * Create a Topic identity object with the specified topic name
     *
     * @param topicName The name of the Topic Destination
     *
     * @throws InvalidDestinationException If the topicName contains illegal syntax.
     */
    public Topic createTopic(String topicName) throws JMSException {
        String methodName = "createTopic(topicName)";
        if (_logFINE) {
            _loggerJS.fine(_lgrMID_INF + "sessionId=" + sessionId + ":" + methodName + "=" + topicName);
        }
        this._checkIfClosed(methodName);
        return (Topic) new com.sun.messaging.BasicTopic(topicName);
    }

    /**
     * Return the acknowledgement mode of the Session
     */
    public int getAcknowledgeMode() throws JMSException {
        String methodName = "getAcknowledgeMode()";
        if (_logFINE) {
            _loggerJS.fine(_lgrMID_INF + "sessionId=" + sessionId + ":" + methodName);
        }
        this._checkIfClosed(methodName);
        switch (this.ackMode) {
        case AUTO_ACKNOWLEDGE:
            return Session.AUTO_ACKNOWLEDGE;
        case CLIENT_ACKNOWLEDGE:
            return Session.CLIENT_ACKNOWLEDGE;
        case DUPS_OK_ACKNOWLEDGE:
            return Session.DUPS_OK_ACKNOWLEDGE;
        case TRANSACTED:
            return Session.SESSION_TRANSACTED;
        case NO_ACKNOWLEDGE:
            return com.sun.messaging.jms.Session.NO_ACKNOWLEDGE;
        default:
            throw new JMSException(methodName + ":Unknown aknowledge mode");
        }
    }

    /**
     * Return the Session's distinguished MessageListener
     */
    public MessageListener getMessageListener() throws JMSException {
        String methodName = "getMessageListener()";
        if (_logFINE) {
            _loggerJS.fine(_lgrMID_INF + "sessionId=" + sessionId + ":" + methodName);
        }
        this._checkIfClosed(methodName);
        return (MessageListener) null;
    }

    /**
     * Return whether the Session is transacted or not
     */
    public boolean getTransacted() throws JMSException {
        String methodName = "getTransacted()";
        if (_logFINE) {
            _loggerJS.fine(_lgrMID_INF + "sessionId=" + sessionId + ":" + methodName);
        }
        this._checkIfClosed(methodName);
        return getTransactedNoCheck();
    }

    protected boolean getTransactedNoCheck() {
        return (this.ackMode == SessionAckMode.TRANSACTED);
    }

    /**
     * Restart this Session's message delivery starting with the oldest unacknowledged message
     */
    public void recover() throws JMSException {
        String methodName = "recover()";
        // JMSServiceReply reply;
        // JMSServiceReply.Status status;
        if (_logFINE) {
            _loggerJS.fine(_lgrMID_INF + "sessionId=" + sessionId + ":" + methodName);
        }
        this._checkIfClosed(methodName);
        this._checkTransactedState(methodName, false); // DONOT allowIfTransacted
        // Session.recover() is a NOP for an MDB Session
        // and
        // all for all Session Acknowledge modes except CLIENT_ACKNOWLEDGE
        if ((this._isMDBSession()) || (this.ackMode != SessionAckMode.CLIENT_ACKNOWLEDGE)) {
            return;
        }
        // XXX:tharakan
        // Stop the sesssion before recover
        // this._stop();
        try {
            // reply = jmsservice.redeliverMessages(this.connectionId, this.sessionId,
            jmsservice.redeliverMessages(this.connectionId, this.sessionId, unackedMessageIDs.toArray(new SysMessageID[0]),
                    unackedConsumerIDs.toArray(new Long[0]), this.transactionId, true);
        } catch (JMSServiceException jmsse) {
            // status = jmsse.getJMSServiceReply().getStatus();
            jmsse.getJMSServiceReply().getStatus();
            String failure_cause = "unknown JMSService error";
            /*
             * switch (status) { case NOT_FOUND: failure_cause = "message not found and cannot be acknowledged"; break; default:
             * failure_cause = "unkown JMSService server error."; }
             */
            String exerrmsg = "redeliverMessage on JMSService:" + jmsservice.getJMSServiceID() + " failed for connectionId:" + this.connectionId
                    + " and sessionId:" + this.sessionId + " due to " + failure_cause;
            _loggerJS.severe(exerrmsg);
            JMSException jmse = new JMSException(exerrmsg);
            jmse.initCause(jmsse);
            throw jmse;
        } finally {
            this.unackedMessageIDs.clear();
            this.unackedConsumerIDs.clear();
            // XXX:tharakan
            // Start the session
            // this._start();
        }
    }

    /**
     * Rollback all messages acknowledged in this transacted session unacknowledged message
     */
    public void rollback() throws JMSException {
        String methodName = "rollback()";
        if (_logFINE) {
            _loggerJS.fine(_lgrMID_INF + "sessionId=" + sessionId + ":" + methodName);
        }
        this._checkIfClosed(methodName);
        this._checkTransactedState(methodName, true); // allow only if transacted
        // XXX:handle rollback inside deliver() includes the current message
        this._rollback(methodName);
        this._startTransaction(methodName);
    }

    /**
     * Run message delivery of the messages that have been loaded in this sesssion.
     */
    public void run() {
        String methodName = "run()";
        if (_logFINE) {
            _loggerJS.fine(_lgrMID_INF + "sessionId=" + sessionId + ":" + methodName);
        }
        try {
            this._checkIfClosed(methodName);
            this._checkTransactedState(methodName, false); // allow only if non-tx
            this._unsupported("Session.recover()");
        } catch (JMSException ex) {
            _loggerJS.severe(this._lgrMID_EXC + "sessionId=" + sessionId + ":" + methodName + ex.getMessage());
            throw new RuntimeException(ex);
        }
    }

    /**
     * Set the Session's distinguished MessageListener
     */
    public void setMessageListener(javax.jms.MessageListener listener) throws JMSException {
        String methodName = "setMessageListener()";
        if (_logFINE) {
            _loggerJS.fine(_lgrMID_INF + "sessionId=" + sessionId + ":" + methodName);
        }
        this._unsupported("Session.setMessageListener()");
        this._checkIfClosed(methodName);
    }

    /**
     * Unsubscribe the durable subscription specified by name
     */
    public void unsubscribe(String name) throws JMSException {
        String methodName = "unsubscribe()";
        if (_logFINE) {
            _loggerJS.fine(_lgrMID_INF + "sessionId=" + sessionId + ":" + methodName);
        }
        this._checkIfClosed(methodName);
        if (name == null || "".equals(name)) {
            throw new InvalidDestinationException("NULL or empty name for unsubscribe");
        }
        // cycle through consumers and check if one of them is lose them one by one
        int t_consumerId;
        DirectConsumer dc = null;
        Iterator<DirectConsumer> k = this.dc._getDurableConsumers().iterator();
        while (k.hasNext()) {
            dc = k.next();
            if (name.equals(dc.getDurableName())) {
                String exErrMsg = _lgrMID_WRN + "sessionId=" + sessionId + ":" + methodName + ":name:" + name + ":Is in use";
                _loggerJS.warning(exErrMsg);
                JMSException jmse = new JMSException(exErrMsg);
                throw jmse;
            }
        }
        try {
            // this method returns a JMSServiceReply but we don't need to check it since
            // an exception will be thrown if it is not OK
            jmsservice.deleteConsumer(this.connectionId, this.sessionId, 0L, null, false, name, this.dc._getClientID());
        } catch (JMSServiceException jmsse) {
            String exErrMsg = _lgrMID_EXC + "sessionId=" + sessionId + ":" + methodName + ":name:" + name + ":error=" + jmsse.getMessage();
            _loggerJS.warning(exErrMsg);
            JMSException jmse = new InvalidDestinationException(exErrMsg);
            jmse.initCause(jmsse);
            throw jmse;
        }
    }

    /////////////////////////////////////////////////////////////////////////
    // end javax.jms.Session
    /////////////////////////////////////////////////////////////////////////
    /////////////////////////////////////////////////////////////////////////
    // methods that implement javax.jms.QueueSession
    /////////////////////////////////////////////////////////////////////////
    /**
     * Create a QueueReceiver for the specified Queue
     */
    public QueueReceiver createReceiver(Queue queue) throws JMSException {
        return (QueueReceiver) this._createAndAddConsumer("createReceiver(Queue)", queue, null, false);
    }

    /**
     * Create a QueueReceiver for the specified Queue with the specified selector
     */
    public QueueReceiver createReceiver(Queue queue, String selector) throws JMSException {
        return (QueueReceiver) this._createAndAddConsumer("createReceiver(Queue, selector)", queue, selector, false);
    }

    /**
     * Create a QueueSender for the specified Queue
     *
     * @param queue The Queue to be used when creating the QueueSender
     */
    public QueueSender createSender(Queue queue) throws JMSException {
        return (QueueSender) this._createAndAddProducer("createSender(Queue)", queue);
        /*
         * String methodName = "createSender(Queue)"; String _name = null; if (queue != null){ _name = queue.getQueueName(); }
         * if (_logFINE){ _loggerJS.fine(_lgrMID_INF + "sessionId=" + sessionId+":"+ methodName + ":Queue="+_name); }
         * this._checkIfClosed(methodName); com.sun.messaging.jmq.jmsservice.Destination.Life _life =
         * com.sun.messaging.jmq.jmsservice.Destination.Life.STANDARD; if (queue !=null) { //Spcified destination case if (queue
         * instanceof javax.jms.TemporaryQueue){ _life = com.sun.messaging.jmq.jmsservice.Destination.Life.TEMPORARY; }
         * com.sun.messaging.jmq.jmsservice.Destination _destination = new com.sun.messaging.jmq.jmsservice.Destination(_name,
         * com.sun.messaging.jmq.jmsservice.Destination.Type.QUEUE, _life); dc._createDestination(_destination); long producerId
         * = _createProducerId(_destination); DirectProducer dp = new DirectProducer(this, this.jmsservice, producerId, queue,
         * _destination); this.addProducer(dp); return (QueueSender)dp; } else { DirectProducer dp = new DirectProducer(this,
         * this.jmsservice); this.addProducer(dp); return (QueueSender)dp; }
         */
    }

    /////////////////////////////////////////////////////////////////////////
    // end javax.jms.QueueSession
    /////////////////////////////////////////////////////////////////////////
    /////////////////////////////////////////////////////////////////////////
    // methods that implement javax.jms.TopicSession
    /////////////////////////////////////////////////////////////////////////
    /**
     * Create a TopicPublisher for the specified Topic
     *
     * @param topic The Topic to be used when creating the TopicPublisher
     */
    public TopicPublisher createPublisher(Topic topic) throws JMSException {
        return (TopicPublisher) this._createAndAddProducer("createPublisher()", topic);
        /*
         * String methodName = "createPublisher(Topic)"; String _name = null; if (topic != null) { _name = topic.getTopicName();
         * } com.sun.messaging.jmq.jmsservice.Destination.Life _life =
         * com.sun.messaging.jmq.jmsservice.Destination.Life.STANDARD; if (_logFINE){ _loggerJS.fine(_lgrMID_INF + "sessionId="
         * + sessionId+":"+ methodName + "=" + _name); } this._checkIfClosed(methodName); if (topic !=null) { //Spcified
         * destination case if (topic instanceof javax.jms.TemporaryTopic){ _life =
         * com.sun.messaging.jmq.jmsservice.Destination.Life.TEMPORARY; } com.sun.messaging.jmq.jmsservice.Destination
         * _destination = new com.sun.messaging.jmq.jmsservice.Destination(_name,
         * com.sun.messaging.jmq.jmsservice.Destination.Type.TOPIC, _life); //XXX:tharakan:Need to Verify Destination first ???
         * //dc._verifyDestination(_destination); dc._createDestination(_destination); long producerId =
         * _createProducerId(_destination); DirectProducer dp = new DirectProducer(this, this.jmsservice, producerId, topic,
         * _destination); this.addProducer(dp); return (TopicPublisher)dp; } else { DirectProducer dp = new DirectProducer(this,
         * this.jmsservice); this.addProducer(dp); return (TopicPublisher)dp; }
         */
    }

    /**
     * Create a TopicSubscriber for the specified Topic.
     */
    public TopicSubscriber createSubscriber(Topic topic) throws JMSException {
        return (TopicSubscriber) this._createAndAddConsumer("createSubscriber(Topic)", topic, null, false);
    }

    /**
     * Create a TopicSubscriber for the specified Topic using a selector and specifying whether messages published by its
     * own connection should be delivered to it.
     */
    public TopicSubscriber createSubscriber(Topic topic, String selector, boolean noLocal) throws JMSException {
        return (TopicSubscriber) this._createAndAddConsumer("createSubscriber(Topic, selector, noLocal)", topic, selector, noLocal);
    }

    /////////////////////////////////////////////////////////////////////////
    // methods that implement javax.jms.TopicSession
    /////////////////////////////////////////////////////////////////////////
    /////////////////////////////////////////////////////////////////////////
    // MQ methods
    /////////////////////////////////////////////////////////////////////////
    /**
     * Initialize this DirectSession - this is overridden by sub classes
     */
    protected void _initSession() throws JMSException {
        String methodName = "_initSession()";
        _loggerOC.entering(_className, methodName);
        this.isAsync = false;
        this.inDeliver = false;
        this.isClosed = false;
        this.isClosing = false;
        this.isStopped = true;
        this.ackOnFetch = (((this.ackMode == JMSService.SessionAckMode.AUTO_ACKNOWLEDGE) || (this.ackMode == JMSService.SessionAckMode.TRANSACTED)
                || (this.ackMode == JMSService.SessionAckMode.DUPS_OK_ACKNOWLEDGE)) ? true : false);
        if (this.isTransacted() && !this.dc.isManaged()) {
            this._startTransaction(methodName);
        }
        if (!this.dc.isStopped()) {
            this._start();
        }
    }

    /**
     * Start the JMS Session
     */
    protected void _start() {
        this.isStopped = false;
        try {
            jmsservice.startSession(this.connectionId, this.sessionId);
        } catch (JMSServiceException jmsse) {
            _loggerJS.warning(
                    _lgrMID_WRN + "sessionId=" + sessionId + ":" + "_start():" + "JMSService.startSession():" + "JMSServiceException=" + jmsse.getMessage());
        }
    }

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

    /**
     * Rollback the transaction for this session
     */
    protected void _rollback(String methodName) throws JMSException {
        // JMSServiceReply reply = null;
        try {
            // XXX:Set the Redelivered Flag until CTS changes the test
            // reply = jmsservice.rollbackTransaction(this.connectionId,
            jmsservice.rollbackTransaction(this.connectionId, this.transactionId, null, true, true);
            // XXX:Set the Redelivered Flag until CTS changes the test
        } catch (JMSServiceException jmsse) {
            _loggerJS.warning(_lgrMID_WRN + "sessionId=" + sessionId + ":" + methodName + ":JMSServiceException=" + jmsse.getMessage());
        }
    }

    /**
     * Stop the JMS Session
     */
    protected void _stop() {
        try {
            jmsservice.stopSession(this.connectionId, this.sessionId, true);
        } catch (JMSServiceException jmsse) {
            _loggerJS.warning(
                    _lgrMID_WRN + "sessionId=" + sessionId + ":" + "_stop():" + "JMSService.stopSession():" + "JMSServiceException=" + jmsse.getMessage());
        }
    }

    /**
     * Return the DirectConnection for this DirectSession
     */
    public final DirectConnection getConnection() {
        return this.dc;
    }

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

    /**
     * Return the sessionId for this DirectSession
     *
     * @return The sessionId
     */
    public final long getSessionId() {
        return this.sessionId;
    }

    protected long _getTransactionId() {
        return this.transactionId;
    }

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

    /**
     * Return the Async state of this DirectSession
     *
     * @return {@code true} if this session is dedicated to async consumption {@code false} otherwise
     */
    public synchronized boolean isAsync() {
        return this.isAsync;
    }

    /**
     * Set the Async state of this DirectSession
     * 
     * 
     * @param isAsync The value to set the async state of this DirectSession
     */
    protected synchronized void _setAsync(boolean isAsync) {
        this.isAsync = isAsync;
        // If the dc has started,then start this session
        // else when the dc starts start this session
        // only if this is asynch?
    }

    protected synchronized final boolean inDeliver() {
        return this.inDeliver;
    }

    /**
     * Return the XATransacted state of this DirectSession
     *
     * @return {@code true} if this session is involved in an XA Transaction {@code false} if it is not involved in an XA
     * Transaction
     */
    public synchronized boolean isXATransacted() {
        return this.isXATransacted;
    }

    /**
     * Return the Transacted state of this DirectSession
     *
     * @return {@code true} if this session is involved in a JMS Transaction {@code false} if it is not involved in a JMS
     * Transaction
     */
    public boolean isTransacted() {
        return (this.ackMode == SessionAckMode.TRANSACTED);
    }

    /**
     * Check if the DirectSession is closed prior to performing an operation an throw a JMSException if the session 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 + "Session is closed:Id=" + sessionId;
            _loggerJS.warning(closedmsg);
            throw new javax.jms.IllegalStateException(closedmsg);
        }
    }

    /**
     * Check whether the Session transacted state is legal.
     * <p>
     * If the DirectSession is transacted, then it is illegal to call non-transacted APIs.<br>
     * If the DirectSession is non-transacted, then it is illegal to call transacted APIs.
     *
     * @param methodname The method from which this check is called
     * @param allowIfTransacted Indicates whether to allow an operation for a transacted session or disallow it.<br>
     * If {@code true} then the operation will be allowed on a transacted session. i.e. it will <b>not</b> throw an
     * IllegalStateException if the session is transacted.<br>
     * If {@code false} then the operation will be allowed only if the session is a non-transacted session. i.e. it will
     * <b>not</b> throw an IllegalStateException if the session is non-transacted.<br>
     *
     * @throws IllegalStateException if the operation is illegal
     */
    private void _checkTransactedState(String methodName, boolean allowIfTransacted) throws JMSException {
        String illegalStateMsg = null;
        if (this.isTransacted() && !allowIfTransacted) {
            illegalStateMsg = this._lgrMID_EXC + methodName + ":Illegal for a transacted Session:sessionId=" + this.sessionId;
        } else {
            if (!this.isTransacted() && allowIfTransacted) {
                illegalStateMsg = this._lgrMID_EXC + methodName + ":Illegal for a non-transacted Session:sessionId=" + this.sessionId;
            }
        }
        if (illegalStateMsg != null) {
            _loggerJS.warning(illegalStateMsg);
            throw new javax.jms.IllegalStateException(illegalStateMsg);
        }
    }

    /**
     * Check whether the Session acknowledge mode is legal.
     * <p>
     * If the DirectSession is transacted, then it is illegal to call non-transacted APIs.<br>
     * If the DirectSession is non-transacted, then it is illegal to call transacted APIs.
     *
     * @param methodname The method from which this check is called
     * @param validAckMode
     * 
     * Indicates whether to allow an operation for a transacted session or disallow it.<br>
     * If {@code true} then the operation will be allowed on a transacted session. i.e. it will <b>not</b> throw an
     * IllegalStateException if the session is transacted.<br>
     * If {@code false} then the operation will be allowed only if the session is a non-transacted session. i.e. it will
     * <b>not</b> throw an IllegalStateException if the session is non-transacted.<br>
     *
     * @throws IllegalStateException if the operation is illegal
     *
     * private void _checkAcknowledgeMode(String methodName, JMSService.SessionAckMode validAckMode) throws JMSException {
     * String illegalStateMsg = null; if (this.isTransacted() && !allowIfTransacted){ illegalStateMsg = this._lgrMID_EXC +
     * methodName + ":Illegal for a transacted Session:sessionId=" + this.sessionId; } else { if (!this.isTransacted() &&
     * allowIfTransacted){ illegalStateMsg = this._lgrMID_EXC + methodName + ":Illegal for a non-transacted
     * Session:sessionId=" + this.sessionId; } } if (illegalStateMsg != null) { _loggerJS.warning(illegalStateMsg); throw
     * new javax.jms.IllegalStateException(illegalStateMsg); } }
     */

    /**
     * Close Session intended for use when connection.close() is used
     */
    protected synchronized void _close() throws JMSException {
        // harmless if already closed
        if (isClosed) {
            return;
        } else {
            this.isClosing = true;
            if (this.isTransacted() && !this.dc.isManaged()) {
                this._rollback("_close()");
            }
            this._closeAndClearProducers();
            this._stop();
            this._closeAndClearConsumers();
            this._closeAndClearBrowsers();
        }
        try {
            // System.out.println("DS:Destroying sessionId="+sessionId+":connectionId="+connectionId);
            jmsservice.destroySession(connectionId, sessionId);
        } catch (JMSServiceException jmsse) {
            _loggerJS.warning(
                    _lgrMID_WRN + "sessionId=" + sessionId + ":" + "close():" + "JMSService.destroySession():" + "JMSServiceException=" + jmsse.getMessage());
        }
        this.isClosed = true;
        this.isClosing = false;
    }

    /**
     * Checks a Destination for consumption
     *
     * @param destination The JMS Destination that needs to be checked for validity of creating a consumer
     *
     * @return The com.sun.messaging.jmq.jmsservice.Destination to use in creating the DirectConsumer
     */
    private com.sun.messaging.jmq.jmsservice.Destination _checkDestinationForConsumer(Destination destination) throws JMSException {
        JMSException jmse;
        String jmserrmsg;
        com.sun.messaging.jmq.jmsservice.Destination _destination = null;
        if (destination == null) {
            jmserrmsg = _lgrMID_EXC + "_checkDestination:Destination is null";
            jmse = new InvalidDestinationException(jmserrmsg);
            _loggerJS.severe(jmserrmsg);
            throw jmse;
        }
        String _name = null;
        com.sun.messaging.jmq.jmsservice.Destination.Type _type = com.sun.messaging.jmq.jmsservice.Destination.Type.QUEUE;
        com.sun.messaging.jmq.jmsservice.Destination.Life _life = com.sun.messaging.jmq.jmsservice.Destination.Life.STANDARD;
        if (destination instanceof TemporaryDestination) {
            if (!dc._hasTemporaryDestination((TemporaryDestination) destination)) {
                jmserrmsg = _lgrMID_EXC + "_checkDestination:Temporary Destination not owned by " + " parent connectionId=" + dc.getConnectionId();
                jmse = new JMSException(jmserrmsg);
                _loggerJS.severe(jmserrmsg);
                throw jmse;
            }
            _life = com.sun.messaging.jmq.jmsservice.Destination.Life.TEMPORARY;
        }
        if (destination instanceof javax.jms.Queue) {
            _name = ((Queue) destination).getQueueName();
            _type = com.sun.messaging.jmq.jmsservice.Destination.Type.QUEUE;
        }
        if (destination instanceof javax.jms.Topic) {
            _name = ((Topic) destination).getTopicName();
            _type = com.sun.messaging.jmq.jmsservice.Destination.Type.TOPIC;
        }
        _destination = new com.sun.messaging.jmq.jmsservice.Destination(_name, _type, _life);
        // XXX:tharakan:Need to Verify Destination first.
        // dc._verifyDestination(_destination);
        dc._createDestination(_destination);
        return _destination;
    }

    /**
     * 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 + "sessionId=" + sessionId + ":" + methodname;
        _loggerJS.warning(unsupported);
        throw new JMSException(unsupported);
    }

    /**
     * Add a Consumer to the list of JMS MessageConsumer objects created by this DirectSession.
     *
     * @param consumer The DirectConsumer to be added
     */
    protected void addConsumer(DirectConsumer consumer) {
        this.consumers.add(consumer);
    }

    /**
     * Remove a Consumer from the list of JMS MessageConsumer objects created by this DirectSession.
     *
     * @param consumer The DirectConsumer to be removed
     */
    protected void removeConsumer(DirectConsumer consumer) {
        boolean result = this.consumers.remove(consumer);
        // This session *has* to be in the list else something went wrong :)
        assert (result == true);
    }

    /**
     * Add a Producer to the list of JMS MessageProducer objects created by this DirectSession.
     *
     * @param producer The DirectProducer to be added
     */
    protected void addProducer(DirectProducer producer) {
        this.producers.add(producer);
    }

    /**
     * Remove a Producer from the list of JMS MessageProducer objects created by this DirectSession.
     *
     * @param producer The DirectProducer to be removed
     */
    protected void removeProducer(DirectProducer producer) {
        boolean result = this.producers.remove(producer);
        // This session *has* to be in the list else something went wrong :)
        assert (result == true);
    }

    /**
     * Add a QueueBrowser to the list of JMS QueueBrowsers objects created by this DirectSession.
     *
     * @param browser The DirectQueueBrowser to be added
     */
    protected void addBrowser(DirectQueueBrowser browser) {
        this.browsers.add(browser);
    }

    /**
     * Remove a QueueBrowser from the list of JMS QueueBrowser objects created by this DirectSession.
     *
     * @param browser The DirectQueueBrowser to be removed
     */
    protected void removeBrowser(DirectQueueBrowser browser) {
        boolean result = this.browsers.remove(browser);
        // This session *has* to be in the list else something went wrong :)
        assert (result == true);
    }

    /**
     * Create a producer with the jmsservice and return a producerId.
     * <p>
     * Used by createAndAddProducer in DirectSession as well as _createAndAddProducerId method in DirectProducer when a JMS
     * message is produced using a DirectProducer that was created using an unspeificed JMS Destination (i.e. null)
     *
     * @param destination The com.sun.messaging.jmsservice.Destination object identifying the destination on which the
     * producer is to be created.
     *
     * @return The producerId to be used by the DirectProducer object that is returned by the JMS API method
     *
     * @throws JMSException if any JMS server error occurred
     */
    protected long _createProducerId(com.sun.messaging.jmq.jmsservice.Destination destination) throws JMSException {
        JMSServiceReply reply;
        long producerId = 0L;
        try {
            reply = jmsservice.addProducer(this.connectionId, this.sessionId, destination);
            try {
                producerId = reply.getJMQProducerID();
            } catch (NoSuchFieldException nsfe) {
                String exerrmsg = _lgrMID_EXC + "JMSServiceException:Missing JMQProducerID";
                JMSException jmse = new JMSException(exerrmsg);
                jmse.initCause(nsfe);
                _loggerJS.severe(exerrmsg);
                throw jmse;
            }

        } catch (JMSServiceException jse) {
            JMSServiceReply.Status status = jse.getJMSServiceReply().getStatus();
            String failure_cause;
            String exerrmsg = "createProducer on JMSService:" + jmsservice.getJMSServiceID() + " failed for connectionId:" + connectionId + " and sessionId:"
                    + sessionId + " due to ";
            JMSException jmsse = null;
            switch (status) {
            case FORBIDDEN:
                failure_cause = "client forbidden to send messages to this destination.";
                exerrmsg = exerrmsg + failure_cause;
                jmsse = new JMSSecurityException(exerrmsg, jse.getJMSServiceReply().getErrorCode());
                break;
            case NOT_FOUND:
                failure_cause = "destination not found and cannot be auto-created.";
                break;
            case CONFLICT:
                failure_cause = "destination limit for number of producers exceeded.";
                break;
            default:
                failure_cause = "unkown JMSService server error.";
            }
            _loggerJS.severe(exerrmsg);
            if (jmsse == null) {
                jmsse = new JMSException(exerrmsg + failure_cause);
            }
            jmsse.initCause(jse);
            throw jmsse;
        }
        return producerId;
    }

    /**
     * Create a MessageProducer object that can be returned by the JMS API method.
     * <p>
     * This method is used by the methods implementing javax.jms.Session, javax,jms.QueueSession, and
     * javax.jms.TopicSession<br>
     * A successfully created DirectProducer is added to the table of Producer objects maintained by this DirectSession.<br>
     * If the destination was explicitly specified, then a producerId is created with the jmsservice.<br>
     * If the destination was not specified, then a producerId of 0L is used along with a null (unspecified) destination. In
     * this case, a producerId is only created when a message is produced if no producerId for that destination exists.
     *
     * @param methodName The JMS API method that was called.
     * @param destination The JMS Destination object identifying the destination on which the producer is to be created.
     * This can be null.
     *
     * @return The DirectProduder object to be returned by the JMS API method.
     *
     * @throws JMSException if any JMS error occurred.
     */
    private DirectProducer _createAndAddProducer(String methodName, Destination destination) throws JMSException {
        long producerId = 0L;
        com.sun.messaging.jmq.jmsservice.Destination jmsservice_dest = null;

        if (_logFINE) {
            _loggerJS.fine(_lgrMID_INF + "sessionId=" + this.sessionId + ":" + methodName + ":Destination=" + destination);
        }
        this._checkIfClosed(methodName);
        if (destination != null) {
            // Spcified destination case
            String _name = null;
            com.sun.messaging.jmq.jmsservice.Destination.Type _type = com.sun.messaging.jmq.jmsservice.Destination.Type.QUEUE;
            com.sun.messaging.jmq.jmsservice.Destination.Life _life = com.sun.messaging.jmq.jmsservice.Destination.Life.STANDARD;

            if (destination instanceof javax.jms.Queue) {
                _name = ((Queue) destination).getQueueName();
                _type = com.sun.messaging.jmq.jmsservice.Destination.Type.QUEUE;
                if (destination instanceof javax.jms.TemporaryQueue) {
                    _life = com.sun.messaging.jmq.jmsservice.Destination.Life.TEMPORARY;
                }
            }
            if (destination instanceof javax.jms.Topic) {
                _name = ((Topic) destination).getTopicName();
                _type = com.sun.messaging.jmq.jmsservice.Destination.Type.TOPIC;
                if (destination instanceof javax.jms.TemporaryTopic) {
                    _life = com.sun.messaging.jmq.jmsservice.Destination.Life.TEMPORARY;
                }
            }
            jmsservice_dest = new com.sun.messaging.jmq.jmsservice.Destination(_name, _type, _life);
            // XXX:tharakan:Need to Verify Destination first.
            // dc._verifyDestination(_destination);
            dc._createDestination(jmsservice_dest);
            producerId = _createProducerId(jmsservice_dest);
        }
        // producerId and destination will be 0L and null unless destination
        // is specified in the JMS API method call to create the MessageProducer
        DirectProducer dp = new DirectProducer(this, this.jmsservice, producerId, destination, jmsservice_dest);
        this.addProducer(dp);
        return dp;
    }

    private DirectConsumer _createAndAddConsumer(String methodName, Destination destination, String selector, boolean noLocal) throws JMSException {

        return _createAndAddConsumer(methodName, destination, selector, null, false, false, false, noLocal);
    }

    /**
     * Create a consumerId with the jmsservice and return a MessageConsumer object that can be returned by the JMS API
     * method.
     * <p>
     * This method is used by the methods implementing javax.jms.Session, javax,jms.QueueSession, and
     * javax.jms.TopicSession<br>
     * A successfully created DirectConsumer is added to the table of Consumer objects maintained by this DirectSession.<br>
     * A successfully created durable DirectConsumer is added to the table of durable Consumer objects maintained by the
     * DirectConnection of this DirectSession.
     *
     * @param methodName The JMS API method that was called.
     * @param destination The JMS Destination object identifying the destination on which the consumer is to be created.
     * @param selector The JMS Message selector to be used.
     * @param subscriptionName if dest is Topic and if either durable true or share true, the subscription name
     * @param durable if dest is Topic, if true, this is a durable subscription
     * @param share if dest is Topic, if true, this is a shared subscription
     * @param jmsshare if dest is Topic, if true and share true, this is a JMS 2.0 Shared Subscription if false and share
     * true, this is a MQ Shared Subscription
     *
     * MQ Shared Subscription: messages will be shared with other consumers in the same group that have the same
     * clientId+DurableName for Shared Durable Subscriptions
     * <p>
     * OR
     * <p>
     * clientId+TopicName+Selector for Shared Non-Durable Sunscriptions
     *
     * @param noLocal If {@code true} then this consumer does not want to messages produced on it'sconnection to be
     * delivered to it.
     *
     * @return The DirectConsumer object to be returned by the JMS API method.
     *
     * @throws JMSException if any JMS error occurred.
     */
    private DirectConsumer _createAndAddConsumer(String methodName, Destination destination, String selector, String subscriptionName, boolean durable,
            boolean share, boolean jmsshare, boolean noLocal) throws JMSException {

        JMSServiceReply reply;
        long consumerId = 0L;
        com.sun.messaging.jmq.jmsservice.Destination jmsservice_dest;

        if (_logFINE) {
            _loggerJS.fine(_lgrMID_INF + "sessionId=" + this.sessionId + ":" + methodName + ":Destination=" + destination + ":Selector=" + selector
                    + ":subscriptionName=" + subscriptionName + ":durable=" + durable + ":share=" + share + ":jmsshare=" + jmsshare + ":noLocal=" + noLocal);
        }
        this._checkIfClosed(methodName);

        jmsservice_dest = this._checkDestinationForConsumer(destination);
        String duraname = (durable ? subscriptionName : null);
        DirectConsumer consumer = new DirectConsumer(this, jmsservice, destination, jmsservice_dest, noLocal, selector, duraname);
        try {
            // adjusted for JMS 2.0
            reply = jmsservice.addConsumer(connectionId, sessionId, jmsservice_dest, selector, subscriptionName, durable, share, jmsshare,
                    this.getConnection()._getClientID(), noLocal);
            /*
             * reply = jmsservice.addConsumer(connectionId, sessionId, jmsservice_dest, selector, durableName,
             * this.getConnection()._getClientID(), noLocal, //XXX:tharakan:using false for shared temporarily false, false);
             */
            try {
                // Set consumerId right away
                consumerId = reply.getJMQConsumerID();
                consumer._setConsumerId(consumerId);
            } catch (NoSuchFieldException nsfe) {
                String exerrmsg = _lgrMID_EXC + "JMSServiceException:Missing JMQConsumerID";
                JMSException jmse = new JMSException(exerrmsg);
                jmse.initCause(nsfe);
                _loggerJS.severe(exerrmsg);
                throw jmse;
            }

        } catch (JMSServiceException jse) {
            JMSServiceReply.Status status = jse.getJMSServiceReply().getStatus();
            String failure_cause;
            JMSException jmsse = null;
            String exerrmsg = "createConsumer on JMSService:" + jmsservice.getJMSServiceID() + " failed for connectionId:" + connectionId + " and sessionId:"
                    + sessionId + " due to ";
            switch (status) {
            case FORBIDDEN:
                failure_cause = "client forbidden to receive messages from this destination.";
                exerrmsg = exerrmsg + failure_cause;
                jmsse = new JMSSecurityException(exerrmsg, jse.getJMSServiceReply().getErrorCode());
                break;
            case NOT_FOUND:
                failure_cause = "destination not found and cannot be auto-created.";
                break;
            case CONFLICT:
                failure_cause = "destination limit for number of consumers exceeded.";
                break;
            case BAD_REQUEST:
                failure_cause = "invalid selector=" + selector;
                exerrmsg = exerrmsg + failure_cause;
                jmsse = new InvalidSelectorException(exerrmsg);
                break;
            case PRECONDITION_FAILED:
                if (jse.getCause() != null && jse.getCause() instanceof BrokerException) {
                    failure_cause = jse.getCause().getMessage();
                    exerrmsg = exerrmsg + failure_cause;
                    jmsse = new IllegalStateException(exerrmsg, ((BrokerException) jse.getCause()).getErrorCode());
                    break;
                }
            default:
                failure_cause = "unknown JMSService server error.";
            }
            _loggerJS.severe(exerrmsg);
            if (jmsse == null) {
                exerrmsg = exerrmsg + failure_cause;
                jmsse = new JMSException(exerrmsg);
            }
            jmsse.initCause(jse);
            throw jmsse;
        }
        this.addConsumer(consumer);
        if (subscriptionName != null && durable) {
            this.dc.addDurableConsumer(consumer);
        }
        if (destination instanceof TemporaryDestination) {
            this.dc._incrementTemporaryDestinationUsage((TemporaryDestination) destination);
        }
        return consumer;
    }

    /**
     * Create a Browser with the jmsservice and return a consumerId. Used by the methods implementing javax.jms.Session,
     * javax,jms.QueueSession, and javax.jms.TopicSession
     *
     * @param methodName The JMS API method that was called.
     * @param destination The JMS Destination object identifying the destination on which the browser is to be created.
     * @param selector The JMS Message selector to be used.
     *
     * @return The DirectQueueBrowser object to be returned by the JMS API method.
     *
     * @throws JMSException if any JMS error occurred.
     */
    private DirectQueueBrowser _createAndAddBrowser(String methodName, Queue destination, String selector) throws JMSException {
        JMSServiceReply reply;
        long consumerId = 0L;
        DirectQueueBrowser browser = null;
        com.sun.messaging.jmq.jmsservice.Destination jmsservice_dest;

        if (_logFINE) {
            _loggerJS.fine(_lgrMID_INF + "sessionId=" + sessionId + ":" + methodName + ":Destination=" + destination + ":selector=" + selector);
        }
        this._checkIfClosed(methodName);

        jmsservice_dest = this._checkDestinationForConsumer(destination);
        try {
            reply = jmsservice.addBrowser(connectionId, sessionId, jmsservice_dest, selector);
            try {
                // Must get a consumerId from the addBrowser method
                consumerId = reply.getJMQConsumerID();
            } catch (NoSuchFieldException nsfe) {
                String exerrmsg = _lgrMID_EXC + methodName + "JMSServiceException:Missing JMQConsumerID";
                JMSException jmse = new JMSException(exerrmsg);
                jmse.initCause(nsfe);
                _loggerJS.severe(exerrmsg);
                throw jmse;
            }
            browser = new DirectQueueBrowser(this, jmsservice, consumerId, destination, jmsservice_dest, selector);
        } catch (JMSServiceException jse) {
            JMSServiceReply.Status status = jse.getJMSServiceReply().getStatus();
            String failure_cause;
            JMSException jmsse = null;
            String exerrmsg = "createBrowser on JMSService:" + jmsservice.getJMSServiceID() + " failed for connectionId:" + connectionId + " and sessionId:"
                    + sessionId + " due to ";
            switch (status) {
            case FORBIDDEN:
                failure_cause = "client forbidden to browse messages from this destination.";
                exerrmsg = exerrmsg + failure_cause;
                jmsse = new JMSSecurityException(exerrmsg, jse.getJMSServiceReply().getErrorCode());
                break;
            case NOT_FOUND:
                failure_cause = "destination not found and cannot be auto-created.";
                break;
            case CONFLICT:
                failure_cause = "destination limit for number of consumers exceeded.";
                break;
            case BAD_REQUEST:
                failure_cause = "invalid selector=" + selector;
                exerrmsg = exerrmsg + failure_cause;
                jmsse = new InvalidSelectorException(exerrmsg);
                break;
            default:
                failure_cause = "unkown JMSService server error.";
            }
            _loggerJS.severe(exerrmsg);
            if (jmsse == null) {
                exerrmsg = exerrmsg + failure_cause;
                jmsse = new JMSException(exerrmsg);
            }
            jmsse.initCause(jse);
            throw jmsse;
        }
        this.addBrowser(browser);
        return browser;
    }

    /**
     * Close and clear producers table
     */
    private void _closeAndClearProducers() {
        // cycle through producers and close them one by one
        DirectProducer dp = null;
        Iterator<DirectProducer> k = this.producers.iterator();
        while (k.hasNext()) {
            dp = k.next();
            try {
                dp._close();
                k.remove();
            } catch (JMSException jmsedpc) {
                _loggerJS.warning(_lgrMID_WRN + "sessionId=" + sessionId + ":" + "close_producer:" + "producerId:" + dp.getProducerId() + ":JMSException="
                        + jmsedpc.getMessage());
            }
        }
        this.producers.clear();
    }

    /**
     * Close and clear consumers table
     */
    private void _closeAndClearConsumers() {
        // cycle through consumers and close them one by one
        int t_consumerId;
        DirectConsumer dc = null;
        Iterator<DirectConsumer> k = this.consumers.iterator();
        while (k.hasNext()) {
            dc = k.next();
            try {
                dc._close();
                k.remove();
            } catch (JMSException jmsedcc) {
                _loggerJS.warning(_lgrMID_WRN + "sessionId=" + sessionId + ":" + "close_consumer:" + "consumerId:" + dc.getConsumerId() + ":JMSException="
                        + jmsedcc.getMessage());
            }
        }
        this.consumers.clear();
    }

    /**
     * Close and clear browsers table
     */
    private void _closeAndClearBrowsers() {
        // cycle through browsers and close them one by one
        DirectQueueBrowser dqb = null;
        Iterator<DirectQueueBrowser> k = this.browsers.iterator();
        while (k.hasNext()) {
            dqb = k.next();
            try {
                dqb._close();
                k.remove();
            } catch (JMSException jmsedpc) {
                _loggerJS.warning(_lgrMID_WRN + "sessionId=" + sessionId + ":" + "close_producer:" + "consumerId:" + dqb.getConsumerId() + ":JMSException="
                        + jmsedpc.getMessage());
            }
        }
        this.browsers.clear();
    }

    /**
     * Send a message from this DirectSession - only one thread can do this at a time. Note that it is ok to do this from a
     * Message Consumer
     */
    protected synchronized void _sendMessage(JMSPacket msgPkt) throws JMSException {
        // Add transactionId if needed
        if (ResourceAdapter._isFixBUGDB18849350()) {

            if (this.dc.isManaged() && this.dc.isEnlisted()) {
                msgPkt.getPacket().setTransactionID(this.dc._getXAResource()._getTransactionId());
            } else if (this.transactionId != 0L) {
                msgPkt.getPacket().setTransactionID(this.transactionId);
            } else {
                // Clear it out
                msgPkt.getPacket().setTransactionID(0L);
                msgPkt.getPacket().setIsTransacted(false);
            }

        } else {

            if (this.transactionId != 0L) {
                msgPkt.getPacket().setTransactionID(this.transactionId);
            } else {
                if (this.dc.isManaged() && this.dc.isEnlisted()) {
                    msgPkt.getPacket().setTransactionID(this.dc._getXAResource()._getTransactionId());
                } else {
                    // Clear it out
                    msgPkt.getPacket().setTransactionID(0L);
                    msgPkt.getPacket().setIsTransacted(false);
                }
            }
        }
        try {
            this.jmsservice.sendMessage(this.connectionId, msgPkt);
        } catch (JMSServiceException jmsse) {
            String exerrmsg = _lgrMID_EXC + "JMSServiceException on send message:" + jmsse.getMessage();
            JMSException jmse = new JMSException(exerrmsg);
            jmse.initCause(jmsse);
            _loggerJS.severe(exerrmsg);
            throw jmse;
        }
    }

    /**
     * Deliver a message from this DirectSession - only one thread can do this at a time.
     */
    protected synchronized JMSAck _deliverMessage(javax.jms.MessageListener msgListener, JMSPacket jmsPacket, long consumerId)
            throws ConsumerClosedNoDeliveryException {
        JMSAck jmsAck = null;
        SysMessageID messageID = null;
        long xaTxnId = 0L;
        if (this.enableThreadCheck) {
            // Relies on the *same* thread being used to deliver all messages
            // while this sesion is alive
            long tId = Thread.currentThread().getId();
            if (this.deliverThreadId == 0L) {
                // first time
                this.deliverThreadId = tId;
            } else {
                if (this.deliverThreadId != tId) {
                    throw new RuntimeException("Invalid to call deliver from two different threads!");
                }
            }
        }
        javax.jms.Message jmsMsg = null;
        if (msgListener == null) {
            throw new RuntimeException("DirectConsumer:MessageListener not set!");
        }
        if (jmsPacket == null) {
            throw new RuntimeException("DirectConsumer:JMSPacket is null!");
        }
        try {
            jmsMsg = DirectPacket.constructMessage(jmsPacket, consumerId, this, this.jmsservice, false);
        } catch (Exception e) {

        }

        if (jmsMsg == null) {
            throw new RuntimeException("DirectConsumer:JMS Message in Packet is null!");
        }
        try {
            this.inDeliver = true;
            msgListener.onMessage(jmsMsg);
            // this.ds._deliverMessage(this.msgListener, jmsMsg);
            this.inDeliver = false;
            messageID = ((DirectPacket) jmsMsg).getReceivedSysMessageID();
            if (this.ackMode != SessionAckMode.CLIENT_ACKNOWLEDGE) {
                /*
                 * if (this.dc.isManaged() && this.dc.isEnlisted()){ xaTxnId = this.dc._getXAResource()._getTransactionId(); } else {
                 * xaTxnId = this._getTransactionId(); }
                 */
                xaTxnId = this._getTransactionId();
                jmsAck = new DirectAck(this.connectionId, this.sessionId, consumerId, messageID, xaTxnId, JMSService.MessageAckType.ACKNOWLEDGE);
            } else {
                // Do not need to recover an MDB Session
                if (!this._isMDBSession()) {
                    // Insert message's SysMessageID and consumerId for recover
                    // for non-MDB Session
                    unackedMessageIDs.add(messageID);
                    unackedConsumerIDs.add(consumerId);
                }
            }
        } catch (ConsumerClosedNoDeliveryException e) {
            throw e;
        } catch (Exception e) {
            System.out.println("DirectConsumer:Caught Exception delivering message" + e.getMessage());
            // Re-attempt redelivery semantics here
            // Ack UNDELIVERABLE or DEAD
        }
        return jmsAck;
    }

    /**
     * Fetch a message for a consumer performing a sync receive.
     * <p>
     * Only one thread in a session can do this at a time.
     */
    protected synchronized javax.jms.Message _fetchMessage(DirectConsumer consumer, long consumerId, long timeout, String methodName) throws JMSException {
        JMSPacket jmsPacket = null;
        javax.jms.Message jmsMsg = null;
        SysMessageID messageID = null;
        long xaTxnId = 0L;
        if (false && this.dc.isStopped()) {
            String excMsg = _lgrMID_INF + "consumerId=" + consumerId + ":" + methodName + ":Connection has not been started!";
            _loggerJS.warning(excMsg);
            throw new JMSException(excMsg);
        }
        if (this.dc.isManaged() && this.dc.isEnlisted()) {
            xaTxnId = this.dc._getXAResource()._getTransactionId();
        } else {
            xaTxnId = this._getTransactionId();
        }
        try {
            jmsPacket = this.jmsservice.fetchMessage(this.connectionId, this.sessionId, consumerId, timeout, this.ackOnFetch, xaTxnId);
        } catch (JMSServiceException jmsse) {

        }
        if (jmsPacket == null) {
            return null;
        } else {
            try {
                jmsMsg = DirectPacket.constructMessage(jmsPacket, consumerId, this, this.jmsservice, false);
                consumer.setLastMessageSeen(((DirectPacket) jmsMsg).getReceivedSysMessageID());
                if (this.ackMode == SessionAckMode.CLIENT_ACKNOWLEDGE) {
                    messageID = ((DirectPacket) jmsMsg).getReceivedSysMessageID();
                    // Insert the message's ReceivedSysMessageID + consumerId
                    // for recover
                    unackedMessageIDs.add(messageID);
                    unackedConsumerIDs.add(consumerId);
                }
                return jmsMsg;
            } catch (Exception e) {
                String exerrmsg = _lgrMID_EXC + "receive:Exception constructing message:" + e.getMessage();
                JMSException jmse = new JMSException(exerrmsg);
                jmse.initCause(e);
                _loggerJS.warning(exerrmsg);
                throw jmse;
            }
        }
    }

    /**
     * Fetch the body of a message for a consumer performing a sync receive.
     * <p>
     * Only one thread in a session can do this at a time.
     */
    protected synchronized <T> T _fetchMessageBody(DirectConsumer consumer, long consumerId, long timeout, Class<T> c, String methodName) throws JMSException {
        T body = null;
        MessageFormatException savedMFE = null;
        JMSPacket jmsPacket = null;
        javax.jms.Message jmsMsg = null;
        SysMessageID messageID = null;
        long xaTxnId = 0L;
        if (false && this.dc.isStopped()) {
            String excMsg = _lgrMID_INF + "consumerId=" + consumerId + ":" + methodName + ":Connection has not been started!";
            _loggerJS.warning(excMsg);
            throw new JMSException(excMsg);
        }
        if (this.dc.isManaged() && this.dc.isEnlisted()) {
            xaTxnId = this.dc._getXAResource()._getTransactionId();
        } else {
            xaTxnId = this._getTransactionId();
        }
        try {
            // get the next message but don't auto-acknowledge it
            boolean autoAcknowledge = false;
            jmsPacket = this.jmsservice.fetchMessage(this.connectionId, this.sessionId, consumerId, timeout, autoAcknowledge, xaTxnId);
        } catch (JMSServiceException jmsse) {
            throw new com.sun.messaging.jms.JMSException(jmsse.getMessage(), null, jmsse);
        }
        if (jmsPacket != null) {
            try {
                jmsMsg = DirectPacket.constructMessage(jmsPacket, consumerId, this, this.jmsservice, false);
                if (this.ackMode == SessionAckMode.CLIENT_ACKNOWLEDGE) {
                    messageID = ((DirectPacket) jmsMsg).getReceivedSysMessageID();
                    // Insert the message's ReceivedSysMessageID + consumerId
                    // for recover
                    unackedMessageIDs.add(messageID);
                    unackedConsumerIDs.add(consumerId);
                }
            } catch (Exception e) {
                String exerrmsg = _lgrMID_EXC + "receive:Exception constructing message:" + e.getMessage();
                JMSException jmse = new JMSException(exerrmsg);
                jmse.initCause(e);
                _loggerJS.warning(exerrmsg);
                throw jmse;
            }
            try {
                body = returnPayload(jmsMsg, c);
                consumer.setLastMessageSeen(((DirectPacket) jmsMsg).getReceivedSysMessageID());
            } catch (MessageFormatException mfe) {
                // message could not be converted
                if (xaTxnId == 0L && (getAcknowledgeMode() == Session.AUTO_ACKNOWLEDGE || getAcknowledgeMode() == Session.DUPS_OK_ACKNOWLEDGE)) {
                    // put the message back
                    // note that we don't call setLastMessageSeen in this case
                    try {
                        SysMessageID[] messageIDs = new SysMessageID[1];
                        messageIDs[0] = jmsPacket.getPacket().getSysMessageID();
                        Long[] consumerIDs = new Long[1];
                        consumerIDs[0] = consumerId;
                        boolean setRedelivered = false;
                        jmsservice.redeliverMessages(this.connectionId, this.sessionId, messageIDs, consumerIDs, xaTxnId, setRedelivered);
                    } catch (JMSServiceException jmsse) {
                        throw new com.sun.messaging.jms.JMSException(jmsse.getMessage(), null, jmsse);
                    }
                    // throw now before we acknowledge it
                    throw mfe;
                } else {
                    consumer.setLastMessageSeen(((DirectPacket) jmsMsg).getReceivedSysMessageID());
                    // throw at end of method
                    savedMFE = mfe;
                }
            }
            if (this.ackOnFetch) {
                try {
                    // ??
                    SysMessageID sysMessageID = jmsPacket.getPacket().getSysMessageID();
                    jmsservice.acknowledgeMessage(connectionId, sessionId, consumerId, sysMessageID, xaTxnId, MessageAckType.ACKNOWLEDGE);
                } catch (JMSServiceException e) {
                }
            }
        }

        if (savedMFE != null)
            throw savedMFE;
        return body;
    }

    private <T> T returnPayload(Message message, Class<T> c) throws JMSException {
        T body;
        body = message.getBody(c);
        if (body == null) {
            // must be a Message
            // this doesn't have a payload, and we can't return null because this would clash with the "no message received" case,
            // so we throw an exception
            // "Message has no body and so cannot be returned using this method"
            String errorString = AdministeredObject.cr.getKString(ClientResources.X_MESSAGE_HAS_NO_BODY);
            JMSException jmse = new javax.jms.MessageFormatException(errorString, ClientResources.X_MESSAGE_HAS_NO_BODY);
            ExceptionHandler.throwJMSException(jmse);
        }
        return body;
    }

    /**
     * Acknowledgea a single message in an outbound session
     */
    protected void _acknowledgeThisMessage(DirectPacket msgPkt, long consumerId, JMSService.MessageAckType ackType) throws JMSException {
        long transactionId = 0L;
        if (this.dc.isManaged()) {
            DirectXAResource dxar = this.dc._getXAResource();
            if (dxar != null && dxar.isEnlisted()) {
                transactionId = dxar._getTransactionId();
            }
        } else {
            transactionId = this.transactionId;
        }
        this._acknowledgeMessage(msgPkt, consumerId, transactionId, ackType, -1);
        // Remove the specific message from the UnackedMsgIDs
        SysMessageID _sysMsgID = msgPkt.getReceivedSysMessageID();
        int index = this.unackedMessageIDs.indexOf(_sysMsgID);
        this.unackedMessageIDs.remove(index);
        this.unackedConsumerIDs.remove(index);
    }

    /**
     * Acknowledge a single message in an MDB session
     */
    protected void _acknowledgeThisMessageForMDB(DirectPacket msgPkt, long consumerId, JMSService.MessageAckType ackType, DirectXAResource dxar, int retryCount)
            throws JMSException {
        long transactionId = 0L;
        if (dxar != null && dxar.isEnlisted()) {
            transactionId = dxar._getTransactionId();
        }
        this._acknowledgeMessage(msgPkt, consumerId, transactionId, ackType, retryCount);
    }

    protected void _acknowledgeMessage(DirectPacket msgPkt, long consumerId, long transactionId, JMSService.MessageAckType ackType, int retryCount)
            throws JMSException {
        JMSServiceReply.Status status;
        try {
            if (retryCount > 0) {
                jmsservice.acknowledgeMessage(this.connectionId, this.sessionId, consumerId, msgPkt.getReceivedSysMessageID(), transactionId, ackType,
                        retryCount);
            } else {
                jmsservice.acknowledgeMessage(this.connectionId, this.sessionId, consumerId, msgPkt.getReceivedSysMessageID(), transactionId, ackType);
            }
        } catch (JMSServiceException jmsse) {
            status = jmsse.getJMSServiceReply().getStatus();
            String failure_cause;
            switch (status) {
            case NOT_FOUND:
                failure_cause = "message not found and cannot be acknowledged";
                break;
            default:
                failure_cause = "unkown JMSService server error.";
            }
            String exerrmsg = "acknowledgeMessage on JMSService:" + jmsservice.getJMSServiceID() + " failed for connectionId:" + this.connectionId
                    + " and sessionId:" + this.sessionId + " and consumerId:" + consumerId + " due to " + failure_cause;
            _loggerJS.severe(exerrmsg);
            JMSException jmse = new JMSException(exerrmsg);
            jmse.initCause(jmsse);
            throw jmse;
        }
    }

    /**
     * Set this session to indicate that it is being used by an MDB
     */
    protected void _setMDBSession(boolean isMDBSession) {
        this.isMDBSession = isMDBSession;
    }

    /**
     * Returns whether this DirectSession is used by an MDB
     */
    protected boolean _isMDBSession() {
        return this.isMDBSession;
    }
    /////////////////////////////////////////////////////////////////////////
    // end MQ methods
    /////////////////////////////////////////////////////////////////////////
}
