/*
 * Copyright (c) 2000, 2020 Oracle and/or its affiliates. All rights reserved.
 * Copyright (c) 2020, 2021 Contributors to Eclipse Foundation. 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 jakarta.jms.*;
import javax.naming.NamingException;
import jakarta.resource.NotSupportedException;
import jakarta.resource.ResourceException;
import jakarta.resource.spi.InvalidPropertyException;
import jakarta.resource.spi.endpoint.MessageEndpointFactory;

import com.sun.messaging.ConnectionConfiguration;
import com.sun.messaging.jmq.ClientConstants;

import com.sun.messaging.jmq.jmsservice.JMSService;
import com.sun.messaging.jms.ra.util.CustomTokenizer;

import java.security.AccessController;
import java.security.PrivilegedAction;
import java.util.Enumeration;
import java.util.Hashtable;
import java.util.logging.Logger;

import java.lang.reflect.Method;
import com.sun.messaging.jms.ra.api.JMSRAEndpointConsumer;

/**
 * Encapsulates a message consumer for the Oracle GlassFish(tm) Server Message Queue J2EE Resource Adapter.
 */

public class EndpointConsumer implements jakarta.jms.ExceptionListener, com.sun.messaging.jms.notification.EventListener, JMSRAEndpointConsumer {
    private static final String QUEUE = "jakarta.jms.Queue";
    private static final String TOPIC = "jakarta.jms.Topic";

    /** Resource Adapter holding this epConsumer */
    protected com.sun.messaging.jms.ra.ResourceAdapter ra = null;

    /** XAConnectionFactory for this endpoint (not used for RADirect) */
    private com.sun.messaging.XAConnectionFactory xacf = null;
    /** DirectConnectionFactory for this endpoint (used for RADirect) */
    protected DirectConnectionFactory dcf = null;

    /** The Consumer ID associated with this epConsumer */
    private int cID = 0;

    /** The MessageEndpointFactory ID associated with this epConsumer */
    private int fID = 0;

    /** The destination type associated with this epConsumer */
    private int destinationType = ClientConstants.DESTINATION_TYPE_UNKNOWN;

    /**
     * onMessage delivery related parameters
     */
    protected boolean isDeliveryTransacted = false;
    protected boolean noAckDelivery = false;
    protected Method onMessageMethod = null;

    /** The subscription durability associated with this epConsumer */
    protected boolean isDurable = false;
    protected String clientId = null;
    protected String mName = null;

    /** Flags whether this epConsumer is transcated */
    //////// private boolean transactedDelivery = false;

    /** Flags Deactivation */
    protected boolean deactivated = false;

    /** Connection and Session held by this epConsumer */
    protected com.sun.messaging.jmq.jmsclient.XAConnectionImpl xac = null;
    protected com.sun.messaging.jmq.jmsclient.XASessionImpl xas = null;

    private DirectConnection dc = null;
    private DirectSession ds = null;

    /** MessageListener for this epConsumer */
    protected MessageListener msgListener = null;

    /** MessageConsumer for this epConsumer */
    protected MessageConsumer msgConsumer = null;
    protected MessageConsumer msgConsumer2 = null;

    /** Destination for this epConsumer */
    protected Destination destination = null;

    /** whether this epConsumer is operating in RA direct mode or not */
    protected boolean useRADirect = false;

    protected ActivationSpec aSpec = null;
    protected MessageEndpointFactory endpointFactory = null;

    protected String username = null; // username only used for direct mode
    protected String password = null; // password only used for direct mode
    protected String selector = null;
    protected String subscriptionName = null;
    protected int exRedeliveryAttempts = 0;
    protected int exRedeliveryInterval = 0;

    private boolean stopping = false;

    private boolean logRCFailures = true;
    private int maxLoopDelay = 120000;

    /* Loggers */
    private static transient final String _className = "com.sun.messaging.jms.ra.EndpointConsumer";
    protected static transient final String _lgrNameInboundMessage = "javax.resourceadapter.mqjmsra.inbound.message";
    protected static transient final Logger _loggerIM = Logger.getLogger(_lgrNameInboundMessage);
    protected static transient final String _lgrMIDPrefix = "MQJMSRA_EC";
    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: ";

    /** Create an EndpointConsumer for Direct mode */
    public EndpointConsumer(com.sun.messaging.jms.ra.ResourceAdapter ra, MessageEndpointFactory endpointFactory, jakarta.resource.spi.ActivationSpec spec)
            throws ResourceException {
        if (ra == null || endpointFactory == null || spec == null) {
            throw new NotSupportedException("MQRA:EC:const:null RA||EPF||AS");
        }
        if (!(spec instanceof com.sun.messaging.jms.ra.ActivationSpec)) {
            throw new NotSupportedException("MQRA:EC:const:" + "Unsupported ActivationSpec Class-" + spec.getClass());
        }
        this.aSpec = (ActivationSpec) spec;
        this.endpointFactory = endpointFactory;
        this.ra = ra;

        _init();
    }

    protected void _init() throws ResourceException {
        if (!this.ra.getInAppClientContainer()) {
            AccessController.doPrivileged(new PrivilegedAction<Object>() {
                @Override
                public Object run() {
                    System.setProperty("imq.DaemonThreads", "true");
                    return null;
                }
            });
            // System.setProperty("imq.DaemonThreads", "true");
        }

        // ask the activation spec whether this endpoint should use RADirect
        // it will return true if the RA is configured to use RADirect and we haven't overridden addressList in the activation
        // spec
        useRADirect = this.aSpec.useRADirect();

        Object cfObj = null;
        String connectionFactoryLookup = aSpec.getConnectionFactoryLookup();
        if (connectionFactoryLookup != null) {
            try {
                cfObj = Util.jndiLookup(connectionFactoryLookup);
            } catch (NamingException e) {
                String errorMessage = "MQRA:EC:Invalid connectionFactoryLookup " + connectionFactoryLookup
                        + " configured in ActivationSpec of MDB for no JNDI name found";
                throw new ResourceException(errorMessage, e);
            }
        }

        // Configure connection factory
        if (useRADirect) {
            JMSService jmsservice = this.ra._getJMSService();
            this.dcf = new com.sun.messaging.jms.ra.DirectConnectionFactory(jmsservice, null);

            if (cfObj != null) {
                DirectConnectionFactory cfd = (DirectConnectionFactory) cfObj;
                ManagedConnectionFactory mcf = cfd.getMCF();
                cfd.setMCF(mcf);
                aSpec.setMCF(mcf);
            }
            this.username = this.aSpec.getUserName();
            this.password = this.aSpec.getPassword();
        } else {
            xacf = new com.sun.messaging.XAConnectionFactory();
            try {
                if (cfObj != null) {
                    ConnectionFactoryAdapter cfa = (ConnectionFactoryAdapter) cfObj;
                    ManagedConnectionFactory mcf = cfa.getMCF();
                    aSpec.setMCF(mcf);
                }

                // get addressList from activation spec or (suitably adjusted) from the resource adapter
                this.xacf.setProperty(ConnectionConfiguration.imqAddressList, aSpec._AddressList());

                // get addressListBehavior from activation spec or resource adapter
                xacf.setProperty(ConnectionConfiguration.imqAddressListBehavior, aSpec.getAddressListBehavior());

                // get username from activation spec or resource adapter
                this.xacf.setProperty(ConnectionConfiguration.imqDefaultUsername, aSpec.getUserName());

                // get password from activation spec or resource adapter
                this.xacf.setProperty(ConnectionConfiguration.imqDefaultPassword, aSpec.getPassword());

                // get addressListIterations from activation spec or resource adapter
                xacf.setProperty(ConnectionConfiguration.imqAddressListIterations, Integer.toString(aSpec.getAddressListIterations()));

                // get reconnectAttempts from activation spec or resource adapter
                this.xacf.setProperty(ConnectionConfiguration.imqReconnectAttempts, Integer.toString(aSpec.getReconnectAttempts()));

                // get reconnectEnabled from activation spec
                this.xacf.setProperty(ConnectionConfiguration.imqReconnectEnabled, Boolean.toString(aSpec.getReconnectEnabled()));

                // get reconnectInterval from activation spec or resource adapter
                this.xacf.setProperty(ConnectionConfiguration.imqReconnectInterval, Integer.toString(aSpec.getReconnectInterval()));

                // configure xacf with any additional connection factory properties defined in the activation spec
                setAdditionalConnectionFactoryProperties(aSpec.getOptions());

            } catch (JMSException jmse) {
                System.err.println("MQRA:EC:constr:Exception setting connection factory properties: " + jmse.getMessage());
            }
        }

        this.onMessageMethod = this.ra._getOnMessageMethod();
        this.exRedeliveryAttempts = this.aSpec.getEndpointExceptionRedeliveryAttempts();
        this.exRedeliveryInterval = this.aSpec.getEndpointExceptionRedeliveryInterval();
        this.mName = this.aSpec.getMdbName();
        this.selector = this.aSpec.getMessageSelector();
        this.subscriptionName = this.aSpec.getSubscriptionName();

        String cId = this.aSpec.getClientId();
        if ((cId != null) && !("".equals(cId)) && (cId.length() > 0)) {
            this.clientId = cId;
        } else {
            this.clientId = null;
        }
        try {
            this.isDeliveryTransacted = this.endpointFactory.isDeliveryTransacted(this.onMessageMethod);
        } catch (NoSuchMethodException ex) {
            // Assume delivery is non-transacted
            // Fix to throw NotSupportedException on activation
            // ex.printStackTrace();
        }
        setDestinationType();
        if (this.destinationType == ClientConstants.DESTINATION_TYPE_TOPIC) {
            // Will throw NotSupportedException if clientId not set properly
            setIsDurable();
        }

        checkSubscriptionScopeAndClientId();
        if (this.isDurable) {
            if (!aSpec.isUseSharedSubscriptionInClusteredContainer())
                throw new NotSupportedException("MQRA:EC:Error:Must not set useSharedSubscriptionInClusteredContainer flag for durable subscriptions");

            if (this.clientId == null && aSpec.getSubscriptionScope() == null) {
                // automatically generate client identifier
                if (aSpec._getGroupName() != null) {
                    this.clientId = aSpec._getGroupName() + "{m:" + mName + "}";
                } else {
                    this.clientId = "{m:" + mName + "}";
                }
            }
        } else {
            if ((aSpec._isNoAckDeliverySet()) && (this.destination instanceof com.sun.messaging.Topic) && (!this.isDeliveryTransacted)) {
                this.noAckDelivery = true;
            }
            if (aSpec._isInClusteredContainerSet() && aSpec.isUseSharedSubscriptionInClusteredContainer()) {
                if (this.clientId == null && aSpec.getSubscriptionScope() == null) {
                    if ((mName == null) || ("".equals(mName))) {
                        throw new NotSupportedException("MQRA:EC:Error:Clustered Message Consumer requires"
                                + " non-null clientID OR mdbName:clientID="
                                + this.clientId + ":mdbName=" + mName);
                    } else {
                        // set effective clientId from mName
                        if (aSpec._getGroupName() != null) {
                            this.clientId = aSpec._getGroupName() + "{m:" + mName + "}";
                        } else {
                            this.clientId = "{m:" + mName + "}";
                        }

                    }
                }
            }
        }

        if (this.useRADirect) {
            this.createDirectMessageConsumer();
        } else {
            this.createRemoteMessageConsumer();
        }
    }

    // jakarta.jms.ExceptionListener interface method
    @Override
    public void onException(JMSException exception) {
        _loggerIM.severe(_lgrMID_EXC + "onException:" + exception.getMessage());
        // System.err.println("MQRA:EC:EL:Got Connection Exception:"+exception.getMessage());
        logRCFailures = true;
        if (msgListener != null) {
            // System.err.println("MQRA:EC:EL:invalidatingOMRs");
            msgListener.invalidateOnMessageRunners();
        }
        int loopDelay = aSpec.getReconnectInterval();
        int loopCount = 0;
        while (!stopping) {
            // wait till initial interval expires
            try {
                Thread.sleep(loopDelay);
            } catch (Exception ie) {
            }
            try {
                loopCount += 1;
                if (logRCFailures) {
                    _loggerIM.severe(_lgrMID_EXC + "onException:" + aSpec.toString());
                    // System.err.println("MQRA:EC:EL:"+aSpec.toString());
                }
                _loggerIM.severe(_lgrMID_EXC + "onException:reconnect attempt loop# " + loopCount + " :Delayed " + loopDelay + " milliseconds.");
                // System.err.println("MQRA:EC:EL:addressList reconnect attempt_loop#"+loopCount+":Delayed "+loopDelay+"
                // milliseconds.");
                synchronized (this) {
                    if (!stopping) {
                        createRemoteMessageConsumer();
                        _loggerIM.severe(_lgrMID_EXC + "onException:reconnect success on loop# " + loopCount + " for " + aSpec.toString());
                        // System.err.println("MQRA:EC:EL:RE-CONNECTED consumer:on loop#"+loopCount+" for "+aSpec.toString());
                    }
                }
                break;
            } catch (Exception e) {
                if (logRCFailures) {
                    _loggerIM.severe(_lgrMID_EXC + "onException:Unable to re-establish connection for " + aSpec.toString() + "\nin " + ra.toString());
                    // System.err.println("MQRA:EC:EL:Exception SEVERE:Unable to re-establish connection for
                    // "+aSpec.toString()+"\n"+ra.toString());
                } else {
                    logRCFailures = false;
                }
                if (loopDelay < maxLoopDelay) {
                    loopDelay *= 3;
                    if (loopDelay > maxLoopDelay)
                        loopDelay = maxLoopDelay;
                }
            }
        }
    }

    // com.sun.messaging.jms.notification.EventListener interface method
    @Override
    public void onEvent(com.sun.messaging.jms.notification.Event evnt) {
        _loggerIM.entering(_className, "onEvent()", evnt);
        _loggerIM.info(_lgrMID_INF + "onEvent:Connection Event:" + evnt.toString());
    }

    // Public Methods
    //

    /**
     * Returns the ResourceAdapter associated with this EndpointConsumer
     *
     * @return The ResourceAdapter
     */
    public com.sun.messaging.jms.ra.ResourceAdapter getResourceAdapter() {
        return ra;
    }

    /**
     * Returns the consumerID associated with this EndpointConsumer
     *
     * @return The consumerID
     */
    public int getConsumerID() {
        return cID;
    }

    /*
     * Returns the factoryID for the MessageFactory associated with this EndpointConsumer
     *
     * @return The factoryID
     */
    public int getFactoryID() {
        return fID;
    }

    /**
     * Returns the MessageEndpointFactory associated with this EndpointConsumer
     *
     * @return The MessageEndpointFactory
     */
    public MessageEndpointFactory getMessageEndpointFactory() {
        // System.out.println("MQRA:EC:getMsgEpFctry:fID="+fID);
        MessageEndpointFactory epf = ra._getMessageFactory(fID);
        return epf;
    }

    /**
     * Returns the XASession associated with this EndpointConsumer
     *
     * @return The XASession
     */
    @Override
    public jakarta.jms.XASession getXASession() {
        return xas;
    }

    public DirectSession getDirectSession() {
        return this.ds;
    }

    /**
     * Sets this EndpointConsumer to Deactivated
     *
     */
    public void setDeactivated() {
        deactivated = true;
    }

    /**
     * Creates a MessageConsumer associated with this EndpointConsumer after validating the passed in ActivationSpec
     * parameter. The MessageConsumer delivers the messages to a MessageEndpoint manufactured using the
     * MessageEndpointFactory passed in.
     * 
     */
    public void createRemoteMessageConsumer() throws ResourceException {

        try {
            xac = (com.sun.messaging.jmq.jmsclient.XAConnectionImpl) xacf.createXAConnection();
            if (xac == null) // This should never happen
                throw new ResourceException("MQRA:EC:Error:createRemoteMessageConsumer failed: cannot create XAConnection");

            if ((aSpec._isInClusteredContainerSet()) && aSpec.isUseSharedSubscriptionInClusteredContainer()) {
                xac.setRANamespaceUID(aSpec._getRAUID());
            }
            _loggerIM.fine("MQRA:EC:createRemoteMessageConsumer setting clientID to " + this.clientId);
            if (this.clientId != null) {
                xac.setClientID(this.clientId);
            }
            xac.setExceptionListener(this);
            xac.setEventListener(this);
        } catch (JMSException jmse) {
            if (xac != null) {
                try {
                    xac.close();
                } catch (JMSException jmsecc) {
                }
                xac = null;
            }

            if (logRCFailures) {
                jmse.printStackTrace();
            }
            NotSupportedException nse = new NotSupportedException("MQRA:EC:Error:createRemoteMessageConsumer failed:aborting due to:" + jmse.getMessage());
            nse.initCause(jmse);
            throw nse;
        }

        // success
        try {
            if (this.isDurable) {
                this.xas = (com.sun.messaging.jmq.jmsclient.XASessionImpl) xac.createSession(false, Session.CLIENT_ACKNOWLEDGE);
            } else {
                if (noAckDelivery) {
                    this.xas = (com.sun.messaging.jmq.jmsclient.XASessionImpl) xac.createSession(com.sun.messaging.jms.Session.NO_ACKNOWLEDGE);
                } else {
                    this.xas = (com.sun.messaging.jmq.jmsclient.XASessionImpl) xac.createSession(false, Session.CLIENT_ACKNOWLEDGE);
                }
            }
            xas._setRAEndpointSession();

            if (aSpec.getSubscriptionScope() != null) {
                subscriptionName = getSubscriptionName();
                if (this.isDurable) {
                    msgConsumer = xas.createSharedDurableConsumer((Topic) destination, subscriptionName, aSpec.getMessageSelector());
                } else {
                    msgConsumer = xas.createSharedConsumer((Topic) destination, subscriptionName, aSpec.getMessageSelector());
                }
            } else {
                if (this.isDurable) {
                    msgConsumer = xas.createDurableSubscriber((Topic) destination, aSpec.getSubscriptionName(), aSpec.getMessageSelector(), false);
                } else {
                    msgConsumer = xas.createConsumer(destination, aSpec.getMessageSelector());
                    // test to see if Queue is enabled for more than one consumer when InClustered true
                    if (destination instanceof jakarta.jms.Queue && aSpec._isInClusteredContainerSet()) {
                        // Fail activation if it is not
                        try {
                            msgConsumer2 = xas.createConsumer(destination, aSpec.getMessageSelector());
                            msgConsumer2.close();
                            msgConsumer2 = null;
                        } catch (JMSException jmse) {
                            try {
                                xac.close();
                            } catch (JMSException jmsecc) {
                                // System.out.println("MQRA:EC:closed xac on conn creation exception-"+jmsecc.getMessage());
                            }
                            xac = null;

                            NotSupportedException nse = new NotSupportedException(
                                    "MQRA:EC:Error clustering multiple consumers on Queue:\n" + jmse.getMessage());
                            nse.initCause(jmse);
                            throw nse;
                        }
                    }
                }
            }
            msgListener = new MessageListener(this, this.endpointFactory, aSpec);
            // System.out.println("MQRA:EC:Created msgListener");
            // msgConsumer.setMessageListener(new MessageListener(this, epFactory, spec));
            msgConsumer.setMessageListener(msgListener);
            // System.out.println("MQRA:EC:Set msgListener");
            // System.out.println("MQRA:EC:Starting Connection");
            xac.start();
            updateFactoryConsumerTables(this.endpointFactory);

        } catch (JMSException jmse) {
            if (xac != null) {
                try {
                    xac.close();
                } catch (JMSException jmsecc) {
                    // System.out.println("MQRA:EC:closed xac on conn creation exception-"+jmsecc.getMessage());
                }
                xac = null;
            }
            NotSupportedException nse = new NotSupportedException("MQRA:EC:Error creating Remote Message Consumer:\n" + jmse.getMessage());
            nse.initCause(jmse);
            throw nse;
        }
    }

    /**
     * Set additional arbitrary connection factory properties
     * 
     * The properties must be specified as a String containing a comma-separated list of name=value pairs e.g.
     * prop1=value1,prop2=value2 If a value contains a = or , you can either place the whole value between quotes
     * (prop1="val=ue") or use \ as an escape character (prop1=val\,ue)
     * 
     * This method cannot be used to set properties which are configured internally or which have their own setter methods.
     * These are: imqReconnectEnabled, imqReconnectAttempts, imqReconnectInterval, imqDefaultUsername, imqDefaultPassword,
     * imqAddressList, imqAddressListIterations, imqAddressListBehavior
     * 
     * Any values specified for those properties will be ignored
     *
     * @param stringProps connection factory properties as a comma-separated list of name=value pairs
     */
    private void setAdditionalConnectionFactoryProperties(String stringProps) {
        if (stringProps == null)
            return;

        Hashtable<String, String> props = null;
        try {
            props = CustomTokenizer.parseToProperties(stringProps);
        } catch (InvalidPropertyException ipe) {
            // syntax error in properties
            IllegalArgumentException iae = new IllegalArgumentException(_lgrMID_EXC + "Invalid value for activation spec property options: " + stringProps);
            iae.initCause(ipe);
            throw iae;
        }

        for (Enumeration<String> keysEnum = props.keys(); keysEnum.hasMoreElements();) {
            String thisPropertyName = keysEnum.nextElement();

            // don't allow properties that are, or can be, set elsewhere to be overridden here as this might have unexpected results
            if (thisPropertyName.equals(ConnectionConfiguration.imqReconnectEnabled) || thisPropertyName.equals(ConnectionConfiguration.imqReconnectInterval)
                    || thisPropertyName.equals(ConnectionConfiguration.imqDefaultUsername)
                    || thisPropertyName.equals(ConnectionConfiguration.imqDefaultPassword) || thisPropertyName.equals(ConnectionConfiguration.imqAddressList)
                    || thisPropertyName.equals(ConnectionConfiguration.imqAddressListIterations)
                    || thisPropertyName.equals(ConnectionConfiguration.imqAddressListBehavior)
                    || thisPropertyName.equals(ConnectionConfiguration.imqReconnectAttempts)) {
                _loggerIM.warning(_lgrMID_WRN + "Cannot use activation spec property options to set property " + thisPropertyName + ": ignoring");
                continue;
            }

            try {
                xacf.setProperty(thisPropertyName, props.get(thisPropertyName));
            } catch (JMSException e) {
                IllegalArgumentException iae = new IllegalArgumentException(_lgrMID_EXC + "Error setting connection factory property " + thisPropertyName
                        + " (defined in activation spec property options) to " + props.get(thisPropertyName));
                iae.initCause(e);
                throw iae;
            }
        }
    }

    protected void startMessageConsumer() throws Exception {

    }

    /**
     * Stop a consumer and connections associated with this EndpointConsumer
     */
    public void stopMessageConsumer() throws Exception {
        if (this.useRADirect) {
            stopDirectMessageConsumer();
        } else {
            stopRemoteMessageConsumer();
        }
    }

    /**
     * Stops a consumer and connections associated with this EndpointConsumer
     */
    public void stopRemoteMessageConsumer() throws Exception {
        stopping = true;
        synchronized (this) {
            com.sun.messaging.jmq.jmsclient.SessionImpl mqsess;
            // System.out.println("MQRA:EC:stopMessageConsumer()");
            if (msgConsumer != null) {
                try {
                    if (msgListener != null) {
                        mqsess = xas;
                        // System.out.println("MQRA:EC:stopMessageConsumer:_stopFromRA:sessionId="+mqsess.getBrokerSessionID());
                        mqsess._stopFromRA();
                        // System.out.println("MQRA:EC:stopMessageConsumer:_stopFromRA-done/wfOMRs");
                        msgListener.waitForAllOnMessageRunners();
                        // System.out.println("MQRA:EC:stopMessageConsumer:wfOMRs-done/releaseOMRs");
                        msgListener.releaseOnMessageRunners();
                        // System.out.println("MQRA:EC:stopMessageConsumer:Done releasing OMRs/session.close()");
                        xas.close();
                        // System.out.println("MQRA:EC:stopMessageConsumer:Done session.close()");
                    }
                    // System.out.println("MQRA:EC:stopMessageConsumer:_stopFromRA");
                    //////// <---((com.sun.messaging.jmq.jmsclient.SessionImpl)xas)._stopFromRA();
                    // System.out.println("MQRA:EC:stopMessageConsumer:done _stopFromRA");
                    // System.out.println("MQRA:EC:stopMessageConsumer:closing msgConsumer");
                    /////////////// msgConsumer.close();
                    // System.out.println("MQRA:EC:stopMessageConsumer:closed msgConsumer...........................");
                } catch (JMSException jmse) {
                    ResourceException re = new ResourceException("MQRA:EC:Error on closing MessageConsumer");
                    re.initCause(jmse);
                    throw re;
                }
            }
            if (xac != null) {
                try {
                    xac.close();
                } catch (JMSException jmse) {
                    ResourceException re = new ResourceException("MQRA:EC:Error closing JMS Connection");
                    re.initCause(jmse);
                    throw re;
                }
            }
        }
    }

    /**
     * Updates the factory and consumer tables held by the resource adapter
     *
     */
    private void updateFactoryConsumerTables(MessageEndpointFactory endpointFactory) {
        cID = ra.addEndpointConsumer(this);
        fID = ra.addMessageFactory(endpointFactory);
        ra.addFactorytoConsumerLink(fID, cID);
        // System.out.println("MQRA:EC:updateFactoryConsumerTables:fID="+fID+" cID="+cID+":"+spec.toString());
    }

    /**
     * Sets destinationType from the ActivationSpec instance passed in and validates related configs
     */
    private void setDestinationType() throws ResourceException {
        String destName = aSpec.getDestination();
        String destinationLookup = aSpec.getDestinationLookup();
        Object destObj = null;
        if (destinationLookup != null) {
            try {
                destObj = Util.jndiLookup(destinationLookup);
            } catch (NamingException e) {
                String errorMessage = "MQRA:EC:Invalid destinationLookup " + destinationLookup + " configured in ActivationSpec of MDB for no JNDI name found";
                throw new ResourceException(errorMessage, e);
            }
            if (destObj != null) {
                if (destObj instanceof com.sun.messaging.Destination) {
                    destName = ((com.sun.messaging.Destination) destObj).getName();
                } else {
                    String errorMessage = "MQRA:EC:Invalid destinationLookup " + destinationLookup
                            + " configured in ActivationSpec of MDB, The JNDI object is required to be a Destination";
                    throw new NotSupportedException(errorMessage);
                }
            } else {
                String errorMessage = "MQRA:EC:Invalid destinationLookup " + destinationLookup + " configured in ActivationSpec of MDB for JNDI object is null";
                throw new NotSupportedException(errorMessage);
            }
        }
        try {
            if (destObj != null) {
                if (destObj instanceof com.sun.messaging.Queue) {
                    if (aSpec._isDestTypeTopicSet())
                        throw new InvalidPropertyException("MQRA:EC:Inconsistent destinationType is set for destinationLookup " + destinationLookup);
                    this.destination = new com.sun.messaging.Queue(destName);
                    this.destinationType = ClientConstants.DESTINATION_TYPE_QUEUE;
                } else {
                    if (destObj instanceof com.sun.messaging.Topic) {
                        if (aSpec._isDestTypeQueueSet())
                            throw new InvalidPropertyException("MQRA:EC:Inconsistent destinationType is set for destinationLookup " + destinationLookup);
                        this.destination = new com.sun.messaging.Topic(destName);
                        this.destinationType = ClientConstants.DESTINATION_TYPE_TOPIC;
                    }
                }
            } else if (aSpec._isDestTypeQueueSet()) {
                this.destination = new com.sun.messaging.Queue(destName);
                this.destinationType = ClientConstants.DESTINATION_TYPE_QUEUE;
            } else {
                // destinationType is TOPIC by default
                this.destination = new com.sun.messaging.Topic(destName);
                this.destinationType = ClientConstants.DESTINATION_TYPE_TOPIC;
            }
        } catch (JMSException jmse) {
            String errorMessage;
            if (destName == null) {
                errorMessage = "MQRA:EC:No destination configured in ActivationSpec of MDB";
            } else {
                errorMessage = "MQRA:EC:Invalid destination " + destName + " configured in ActivationSpec of MDB";
            }
            NotSupportedException nse = new NotSupportedException(errorMessage);
            nse.initCause(jmse);
            throw nse;
        }
        // XXX:Does MDB Deployment need physical dest to exist?
        // If so need Admin API to check

        // XXX:Can MDB depoyment handle destname as resource-ref vs. physical dest name?
        // If so, need to handle in ActivationSpec (how will AS handle this?)
    }

    /**
     * Sets isDurable from the ActivationSpec instance passed in and validates related configs
     */
    private void setIsDurable() throws NotSupportedException {
        // If durable subscription, validate subscriptionName
        if (aSpec._isDurableSet()) {
            if (aSpec.getSubscriptionScope() == null) {
                String sName = this.subscriptionName;
                if ((sName == null) || (sName.length() <= 0)) {
                    throw new NotSupportedException("MQRA:EC:Need Valid SubscriptionName-" + sName);
                }
            }
            // Setting this indicates everything is valid
            this.isDurable = true;
        }
    }

    /**
     * Create a direct mode message consumer
     */
    protected void createDirectMessageConsumer() throws NotSupportedException {

        try {
            // Use method that avoids allocation via the ConnectionManager
            this.dc = (DirectConnection) dcf._createConnection(username, password);
            if (this.clientId != null) {
                this.dc._setClientID(this.clientId);
            }

            if (ResourceAdapter._isFixCR6760301()) {
                this.ds = (DirectSession) this.dc.createSessionForRAEndpoint();
            } else {
                this.ds = (DirectSession) this.dc.createSession(false, Session.CLIENT_ACKNOWLEDGE);
            }

            // Set the Session to be an MDB Session
            this.ds._setMDBSession(true);
            if (aSpec.getSubscriptionScope() != null) {
                subscriptionName = getSubscriptionName();
                if (this.isDurable) {
                    this.msgConsumer = this.ds.createSharedDurableConsumer((Topic) this.destination, subscriptionName, this.selector);
                } else {
                    this.msgConsumer = this.ds.createSharedConsumer((Topic) this.destination, subscriptionName, this.selector);
                }
            } else {
                if (this.isDurable) {
                    this.msgConsumer = this.ds.createDurableSubscriber((Topic) this.destination, this.subscriptionName, this.selector, false);
                } else {
                    this.msgConsumer = this.ds.createConsumer(this.destination, this.selector);
                }
            }
            this.msgListener = new MessageListener(this, this.endpointFactory, this.aSpec, this.noAckDelivery, this.useRADirect);
            this.msgConsumer.setMessageListener(this.msgListener);
            this.dc.start();
            updateFactoryConsumerTables(this.endpointFactory);
        } catch (JMSException jmse) {
            if (this.dc != null) {
                try {
                    this.dc.close();
                } catch (JMSException jmsecc) {
                    // System.out.println("MQRA:EC:closed xac on conn creation exception-"+jmsecc.getMessage());
                }
                this.dc = null;
            }
            NotSupportedException nse = new NotSupportedException("MQRA:EC:Error creating Direct Message Consumer:\n" + jmse.getMessage());
            nse.initCause(jmse);
            throw nse;
        }
    }

    /**
     * Start the Direct MessageConsumer
     */
    protected void startDirectConsumer() throws NotSupportedException {

    }

    /**
     * Stop the Direct MessageConsumer
     */
    protected void stopDirectMessageConsumer() throws Exception {
        stopping = true;
        synchronized (this) {
            if (this.msgConsumer != null) {
                try {
                    if (this.msgListener != null) {
                        this.ds._stop();
                        msgListener.waitForAllOnMessageRunners();
                        msgListener.releaseOnMessageRunners();
                        // this.ds._close(); //Will be done by dc.close
                    }
                } catch (JMSException jmse) {
                    ResourceException re = new ResourceException("MQRA:EC:Error on closing Direct MessageConsumer");
                    re.initCause(jmse);
                    throw re;
                }
            }
            if (this.dc != null) {
                try {
                    this.dc.close();
                } catch (JMSException jmse) {
                    ResourceException re = new ResourceException("MQRA:EC:Error closing DircetConnection");
                    re.initCause(jmse);
                    throw re;
                }
            }
        }
    }

    /**
     * Get or generate the subscription name
     */
    protected String getSubscriptionName() {
        if (aSpec.getSubscriptionScope() == null)
            return aSpec.getSubscriptionName();

        String subscriptionName = null;
        if (aSpec.getSubscriptionName() == null) {
            // user doesn't specify activationSpec property subscriptionName,
            // so we generate a name according to chapter 12.1 of jms20 spec
            String activationName = this.endpointFactory.getActivationName();
            if (aSpec.getSubscriptionScope().equals("Cluster")) {
                // Cluster scope
                subscriptionName = activationName;
            } else {
                // Instance scope
                if (aSpec._isInClusteredContainerSet()) {
                    // it is in a glassfish cluster
//                    String instanceName = this.ra.getBootstrapContext().getInstanceName();
//                    subscriptionName = instanceName + "_" + activationName;
                } else {
                    // it is standalone glassfish instance
                    subscriptionName = activationName;
                }
            }
        } else {
            // user specifies activationSpec property subscriptionName
            if (aSpec.getSubscriptionScope().equals("Instance")) {
                // Instance scope
                if (aSpec._isInClusteredContainerSet()) {
                    // it is in a glassfish cluster
//                    String instanceName = this.ra.getBootstrapContext().getInstanceName();
//                    subscriptionName = instanceName + "_" + aSpec.getSubscriptionName();
                } else {
                    // it is standalone glassfish instance
                    subscriptionName = aSpec.getSubscriptionName();
                }
            } else {
                // Cluster scope
                subscriptionName = aSpec.getSubscriptionName();
            }
        }
        _loggerIM.fine("MQRA:EC:Use subscription name '" + subscriptionName + "' for endpoint activation");
        return subscriptionName;
    }

    protected void checkSubscriptionScopeAndClientId() throws NotSupportedException {
        if (aSpec.getSubscriptionScope() != null) {
            if (QUEUE.equals(aSpec.getDestinationType())) {
                NotSupportedException nse = new NotSupportedException("MQRA:EC:Error:Bad parameter");
                nse.initCause(new InvalidPropertyException(_lgrMID_EXC + "subscriptionScope must not be set if destinationType is " + QUEUE));
                throw nse;
            } else if (TOPIC.equals(aSpec.getDestinationType()) && clientId != null) {
                NotSupportedException nse = new NotSupportedException("MQRA:EC:Error:Bad parameter");
                nse.initCause(new InvalidPropertyException(_lgrMID_EXC + "clientId must not be set if subscriptionScope is set"));
                throw nse;
            }
        }
    }
}
