Package com.sun.messaging.bridge.service.jms

Source Code of com.sun.messaging.bridge.service.jms.DMQ

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package com.sun.messaging.bridge.service.jms;

import java.io.Serializable;
import java.util.Map;
import java.util.HashMap;
import java.util.Properties;
import java.util.Enumeration;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.jms.Queue;
import javax.jms.Topic;
import javax.jms.Destination;
import javax.jms.Message;
import javax.jms.ObjectMessage;
import javax.jms.MessageProducer;
import javax.jms.DeliveryMode;
import javax.jms.Session;
import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.XAConnectionFactory;
import javax.jms.ConnectionMetaData;
import javax.jms.JMSException;
import javax.jms.ExceptionListener;
import com.sun.messaging.bridge.service.Bridge;
import com.sun.messaging.bridge.service.jms.xml.JMSBridgeXMLConstant;
import com.sun.messaging.bridge.service.MessageTransformer;
import com.sun.messaging.bridge.service.FaultInjection;
import com.sun.messaging.bridge.service.jms.resources.JMSBridgeResources;

/**
* a JMS bridge DMQ
*
* @author amyk
*
*/
public class DMQ {

    public static enum DMQReason {
        MESSAGE_EXPIRED,
        TRANSFORMER_FAILURE,
        FIRST_TRANSFORMER_NOTRANSFER,
        FIRST_TRANSFORMER_BRANCHTO,
        FIRST_TRANSFORMER_AS_SOURCE_CHANGE,
        SEND_FAILURE,
        COMMIT_FAILURE,
        ACK_FAILURE
    };

    public enum DMQProperty {

        JMS_SUN_JMSBRIDGE_SOURCE_MESSAGEID,
    JMS_SUN_JMSBRIDGE_SOURCE_TIMESTAMP,
    JMS_SUN_JMSBRIDGE_SOURCE_CORRELATIONID,
    JMS_SUN_JMSBRIDGE_SOURCE_JMSTYPE,
        JMS_SUN_JMSBRIDGE_SOURCE_DESTINATION,
        JMS_SUN_JMSBRIDGE_TARGET_DESTINATION,
        JMS_SUN_JMSBRIDGE_TARGET_CURRENT_DESTINATION,
        JMS_SUN_JMSBRIDGE_SOURCE_PROVIDER,
        JMS_SUN_JMSBRIDGE_TARGET_PROVIDER,
        JMS_SUN_JMSBRIDGE_DMQ_REASON,
        JMS_SUN_JMSBRIDGE_DMQ_EXCEPTION,
        JMS_SUN_JMSBRIDGE_DMQ_TIMESTAMP,
        JMS_SUN_JMSBRIDGE_DMQ_BODY_TRUNCATED,
    };

    private enum DMQState {
        UNINITIALIZED, STARTING, STARTED,
        STOPPING, STOPPED
    };

    private Logger _logger = null;

    private Object _cf = null;
    private Object _dest = null;

    private MessageProducer _producer = null;
    private Session _session = null;
    private Connection _conn = null;

    private Properties _dmqAttrs = null;
    private Properties _dmqProps = null;
    private JMSBridge _parent = null;
    private int _maxAttempts = 0;
    private long _attemptInterval = 0;
    private boolean _stayConnected = true;
    private long _timeToLive = 0;

    private int _maxSendAttempts = 1;
    private long _sendInterval = 5*1000;

    private DMQState _state = DMQState.UNINITIALIZED;
    private String _name = null;
    private boolean _connException = false;
    private String _providerName = null;
    private EventNotifier _notifier = null;

  private MessageTransformer<Message, Message> _msgTransformer = null;

    private FaultInjection _fi = FaultInjection.getInjection();
    private static JMSBridgeResources _jbr = JMSBridge.getJMSBridgeResources();

    public synchronized void init(Properties dmqAttrs,
                                  Properties dmqProps,
                                  JMSBridge parent)
                                  throws Exception {
        _dmqAttrs = dmqAttrs;
        _dmqProps = dmqProps;
        _parent = parent;
        _notifier = parent._notifier;
        if (_dest == null || _cf == null) {
            throw new IllegalStateException(
            "DMQ information unknown !");
        }
        if (_logger == null) {
            throw new IllegalStateException(
            "No logger set for dmq "+this);
        }

        if (_cf instanceof XAConnectionFactory) {
            throw new IllegalArgumentException(
                JMSBridge.getJMSBridgeResources().getKString(
                JMSBridge.getJMSBridgeResources().X_DMQ_NOT_SUPPORT, "XAConnectionFactory"));
        }

        _maxAttempts = Integer.valueOf(_dmqAttrs.getProperty(
                         JMSBridgeXMLConstant.CF.CONNECTATTEMPTS,
                         JMSBridgeXMLConstant.CF.CONNECTATTEMPTS_DEFAULT));
        _attemptInterval = Long.valueOf(_dmqAttrs.getProperty(
                       JMSBridgeXMLConstant.CF.CONNECTATTEMPTINTERVAL,
                       JMSBridgeXMLConstant.CF.CONNECTATTEMPTINTERVAL_DEFAULT));
        if (_attemptInterval < 0) _attemptInterval = 0;
        _attemptInterval = _attemptInterval*1000;

        String val = _dmqAttrs.getProperty(JMSBridgeXMLConstant.DMQ.STAYCONNECTED,
                                           JMSBridgeXMLConstant.DMQ.STAYCONNECTED_DEFAULT);
        _stayConnected = Boolean.valueOf(val).booleanValue();

        val = _dmqAttrs.getProperty(JMSBridgeXMLConstant.DMQ.TIMETOLIVE,
                                    JMSBridgeXMLConstant.DMQ.TIMETOLIVE_DEFAULT);
        _timeToLive = Long.valueOf(val).longValue();

        val = _dmqAttrs.getProperty(JMSBridgeXMLConstant.DMQ.SENDATTEMPTS,
                                    JMSBridgeXMLConstant.DMQ.SENDATTEMPTS_DEFAULT);
        _maxSendAttempts = Integer.valueOf(val).intValue();
        if (_maxSendAttempts <= 0) {
            _maxSendAttempts = 1;
        }

        val = _dmqAttrs.getProperty(JMSBridgeXMLConstant.DMQ.SENDATTEMPTINTERVAL,
                                    JMSBridgeXMLConstant.DMQ.SENDATTEMPTINTERVAL_DEFAULT);
        _sendInterval = Long.valueOf(val).longValue()*1000;
        if (_sendInterval < 0) _sendInterval = 0;

        String cn = _dmqAttrs.getProperty(JMSBridgeXMLConstant.DMQ.MTFCLASS);
        if (cn != null ) {
            _msgTransformer = (MessageTransformer<Message, Message>)
                                     Class.forName(cn).newInstance();
        }

        _state = DMQState.STOPPED;
    }

    public boolean isEnabled() {
        return Boolean.valueOf(_dmqAttrs.getProperty(
               JMSBridgeXMLConstant.DMQ.ENABLED,
               JMSBridgeXMLConstant.DMQ.ENABLED_DEFAULT)).booleanValue();
    }

    public synchronized void start(boolean doReconnect) throws Exception {

        if (_state == DMQState.UNINITIALIZED) {
            throw new IllegalStateException(
                JMSBridge.getJMSBridgeResources().getKString(
                JMSBridge.getJMSBridgeResources().X_DMQ_NOT_INITED, this.toString()));
        }
        if (_state == DMQState.STARTED) {
            _logger.log(Level.INFO, JMSBridge.getJMSBridgeResources().getString(
                              JMSBridgeResources.I_DMQ_ALREADY_STARTED, this.toString()));
            return;
        }
        _state = DMQState.STARTING;

        try {
            if (_stayConnected) {
                initJMS(true, doReconnect);
            }
            _state = DMQState.STARTED;

        } catch (Exception e) {
            _logger.log(Level.SEVERE, JMSBridge.getJMSBridgeResources().getKString(
                    JMSBridgeResources.E_UNABLE_START_DMQ, this.toString(), e.getMessage()), e);
            try {
                stop();
            } catch (Throwable t) {
                _logger.log(Level.WARNING, JMSBridge.getJMSBridgeResources().getKString(
                     JMSBridgeResources.W_UNABLE_STOP_DMQ_AFTER_FAILED_START, this.toString()), t);
            }
            throw e;
        }
    }

    public void stop() throws Throwable {

        _notifier.notifyEvent(EventListener.EventType.DMQ_STOP, this);

        synchronized(this) {
            _state = DMQState.STOPPING;
            closeJMS();
            _state = DMQState.STOPPED;
        }
        
    }

    private void initJMS() throws Exception {
        initJMS(false, true);
    }

    private void initJMS(boolean start, boolean doReconnect) throws Exception {
        _connException = false;

        String val = _dmqAttrs.getProperty(JMSBridgeXMLConstant.DMQ.CLIENTID);
        if (_stayConnected || val != null) {

            String[] param = {"DMQ", this.toString(),
                              (val == null ? "":_jbr.getString(_jbr.M_WITH_CLIENTID, val))};
            _logger.log(Level.INFO, _jbr.getString(_jbr.I_CREATE_DEDICATED_CONN, param));

            EventListener l = new EventListener(this);
            try {
                _notifier.addEventListener(EventListener.EventType.DMQ_STOP, l);
                _notifier.addEventListener(EventListener.EventType.BRIDGE_STOP, l);
                _conn = JMSBridge.openConnection(_cf, _parent.getCFAttributes(_cf),
                                                    "DMQ", this, l, _logger, doReconnect);
            } finally {
                _notifier.removeEventListener(l);
            }
            if (val != null) _conn.setClientID(val);
        } else {
            _conn = _parent.obtainConnection(_cf, "DMQ", this, doReconnect);
        }

        _conn.setExceptionListener( new ExceptionListener() {

            public void onException(JMSException exception) {
                _logger.log(Level.WARNING, _jbr.getKString(
                            _jbr.W_ON_CONN_EXCEPTION, this.toString()), exception);
                _connException = true;
                if (_conn instanceof PooledConnection) {
                    ((PooledConnection)_conn).invalid();
                } else if (_conn instanceof SharedConnection) {
                    ((SharedConnection)_conn).invalid();
                }
            }
        });

        try {
            ConnectionMetaData md = _conn.getMetaData();
            _providerName = md.getJMSProviderName();
        } catch (Exception e) {
            _providerName = null;
            _logger.log(Level.WARNING,
            "Unable to get JMSProvider from conn "+_conn+
            " in dmq "+this+": "+e.getMessage());
        }

        _session = _conn.createSession(false, Session.AUTO_ACKNOWLEDGE);

        if (_dest instanceof Destination) {
            _producer = _session.createProducer((Destination)_dest);
        } else if (_dest instanceof AutoDestination) {
            AutoDestination ad = (AutoDestination)_dest;
            if (ad.isQueue()) {
                _producer = _session.createProducer(
                                 _session.createQueue(ad.getName()));
            } else {
                _producer = _session.createProducer(
                                 _session.createTopic(ad.getName()));
            }
        } else {
           throw new IllegalArgumentException(
           "Unknown destination type: "+_dest.getClass().getName()+ " in dmq "+this);
        }
    }

    private synchronized void closeJMS() {
        _connException = false;
        if (_conn == null) return;

        if (_conn instanceof SharedConnection ||
            _conn instanceof PooledConnection) {
            try {
                 _parent.returnConnection(_conn, _cf);
            } catch (Throwable t) {
                 logWarning(_jbr.getKString(_jbr.W_UNABLE_RETURN_CONN, _conn, this.toString()), t);
            }
            return;
        }

        try {
             _logger.log(Level.INFO, _jbr.getString(_jbr.I_CLOSE_DMQ_CONNECTION,
                         _conn.getClass().getName()+'@'+Integer.toHexString(_conn.hashCode()), this.toString()));
            _conn.close();
        } catch (Throwable t) {
            _logger.log(Level.WARNING, _jbr.getKString(_jbr.W_UNABLE_CLOSE_CONN, _conn, this.toString()), t);
        }
    }

    private void logWarning(String msg, Throwable t) {
        if (_state == DMQState.STOPPING || _state == DMQState.STOPPED) {
            _logger.log(Level.WARNING, msg+": "+t.getMessage());
        } else {
            _logger.log(Level.WARNING, msg, t);
        }
    }

    private long msgCount = 0;
    public synchronized void sendMessage(Message m, String mid,
                                         DMQReason reason,
                                         Throwable ex, Link l)
                                         throws Exception {
        if (_state == DMQState.STOPPING || _state == DMQState.STOPPED) {
            throw new JMSException(_jbr.getKString(_jbr.X_STOPPED, this.toString()));
        }

        if (_connException) {
            closeJMS();
            initJMS();
        } else if (!_stayConnected) { 
            initJMS();
        }

        ObjectMessage om = _session.createObjectMessage();
        if (mid != null) {
            try {
            om.setStringProperty(
               DMQProperty.JMS_SUN_JMSBRIDGE_SOURCE_MESSAGEID.toString(), mid);
            } catch (Exception e) {
            _logger.log(Level.WARNING,
            "Exception in setting JMSMessageID to DMQ message from message "+
             m+ " for link "+l, e);
            }
        }
        long timestamp = 0;
        try {
            timestamp = m.getJMSTimestamp();
        } catch (Exception e) {
            _logger.log(Level.WARNING,
            "Exception in getting JMSTimestamp from message "+m+ " for link "+l, e);
        }
        if (timestamp != 0) {
            try {
            om.setLongProperty(
               DMQProperty.JMS_SUN_JMSBRIDGE_SOURCE_TIMESTAMP.toString(), Long.valueOf(timestamp));
            } catch (Exception e) {
            _logger.log(Level.WARNING,
            "Exception in setting source timestamp to DMQ message from message "+
             m+ " for link "+l, e);
            }
        }
        String val = null;
        try {
            val = m.getJMSCorrelationID();
        } catch (Exception e) {
            _logger.log(Level.WARNING,
            "Exception in getting JMSCorrelationID from message "+m+ " for link "+l, e);
        }
        if (val != null) {
            try {
            om.setStringProperty(
               DMQProperty.JMS_SUN_JMSBRIDGE_SOURCE_CORRELATIONID.toString(), val);
            } catch (Exception e) {
            _logger.log(Level.WARNING,
            "Exception in setting source correlation id to DMQ message from message "+
             m+ " for link "+l, e);
            }
        }
        val = null;
        try {
            val = m.getJMSType();
        } catch (Exception e) {
            _logger.log(Level.WARNING,
            "Exception in getting JMSType from message "+m+ " for "+l, e);
        }
        if (val != null)  {
            try {
            om.setStringProperty(
               DMQProperty.JMS_SUN_JMSBRIDGE_SOURCE_JMSTYPE.toString(), val);
            } catch (Exception e) {
            _logger.log(Level.WARNING,
            "Exception in setting source JMS type to DMQ message from message "+
             m+ " for link "+l, e);
            }
        }
        Enumeration en = null;
        try {
        en = m.getPropertyNames();
        } catch (Exception e) {
            _logger.log(Level.WARNING,
            "Exception in getting PropertyNames from message "+m+" in "+l, e);
        }
        String key = null;
        Object value = null;
        while (en != null && en.hasMoreElements()) {
            key = (String)en.nextElement();
            value = m.getObjectProperty(key);
            try {
            om.setObjectProperty(key, value);
            } catch (Exception e) {
            String[] eparam = {key+"="+value, ""+mid, l.toString()};
            _logger.log(Level.WARNING, _jbr.getKString(_jbr.X_EXCEPTION_SET_DMQ_PROPERTY, eparam), e);
            }
        }

        try {
            om.setStringProperty(
               DMQProperty.JMS_SUN_JMSBRIDGE_SOURCE_DESTINATION.toString(),
               l.getSourceDestinationName());
        } catch (Exception e) {
            _logger.log(Level.WARNING,
            "Exception in setting source destination to DMQ message for message "+
             m+ " in "+l, e);
        }

        try {
            om.setStringProperty(
               DMQProperty.JMS_SUN_JMSBRIDGE_TARGET_DESTINATION.toString(),
               l.getTargetDestinationName());
        } catch (Exception e) {
            _logger.log(Level.WARNING,
            "Exception in setting target destination "+
             l.getTargetDestinationName()+" to DMQ message for message "+
             m+ " in "+l, e);
        }

        if (l.getTargetCurrentDestinationName() != null) {
            try {
                om.setStringProperty(
                   DMQProperty.JMS_SUN_JMSBRIDGE_TARGET_CURRENT_DESTINATION.toString(),
                   l.getTargetCurrentDestinationName());
            } catch (Exception e) {
                _logger.log(Level.WARNING,
                "Exception in setting target current destination "+
                 l.getTargetCurrentDestinationName()+" to DMQ message for message "+
                 m+ " in "+l, e);
            }
        }

        try {
            om.setStringProperty(
               DMQProperty.JMS_SUN_JMSBRIDGE_SOURCE_PROVIDER.toString(),
               l.getSourceProviderName());
        } catch (Exception e) {
            _logger.log(Level.WARNING,
            "Exception in setting source provider to DMQ message for message "+
             m+ " in "+l, e);
        }

        try {
            om.setStringProperty(
               DMQProperty.JMS_SUN_JMSBRIDGE_TARGET_PROVIDER.toString(),
               l.getTargetProviderName());
        } catch (Exception e) {
            _logger.log(Level.WARNING,
            "Exception in setting target provider to DMQ message for message "+
             m+ " in "+l, e);
        }

        try {
            om.setStringProperty(
               DMQProperty.JMS_SUN_JMSBRIDGE_DMQ_REASON.toString(), reason.toString());
        } catch (Exception e) {
            _logger.log(Level.WARNING,
            "Exception in setting dmq reason "+reason+ " to DMQ message for message "+
             m+ " in "+l, e);
        }

        if (ex != null && ex.getMessage() !=null) {
            try {
            om.setStringProperty(
               DMQProperty.JMS_SUN_JMSBRIDGE_DMQ_EXCEPTION.toString(), ex.getMessage());
            } catch (Exception e) {
            _logger.log(Level.WARNING,
            "Exception in setting dmq reason "+reason+ " to DMQ message for message "+
             m+ " in "+l, e);
            }
        }

        try {
            om.setLongProperty(
               DMQProperty.JMS_SUN_JMSBRIDGE_DMQ_TIMESTAMP.toString(),
               new Long(System.currentTimeMillis()));
        } catch (Exception e) {
            _logger.log(Level.WARNING,
            "Exception in setting dmq timestamp to DMQ message for message "+
             m+ " in "+l, e);
        }
        int deliveryMode = DeliveryMode.PERSISTENT;
        try {
            deliveryMode = m.getJMSDeliveryMode();
        } catch (Exception e) {
            deliveryMode = DeliveryMode.PERSISTENT;
            _logger.log(Level.WARNING,
            "Exception in getting JMSDeliveryMode: "+e.getMessage()+" for message "+
             m+" in "+l, e);
        }

        int priority = 4;
        try {
            priority = m.getJMSPriority();
        } catch (Exception e) {
            priority = 4;
            _logger.log(Level.WARNING,
            "Exception in getting JMSPriority: "+e.getMessage()+" for message "+
             m+" in "+l, e);
        }

        boolean sent = false;
        int attempts = 0;
        EventListener el = new EventListener(this);
        _notifier.addEventListener(EventListener.EventType.DMQ_STOP, el);
        _notifier.addEventListener(EventListener.EventType.BRIDGE_STOP, el);
        Message msgToSend = m;
        try {
            do {
                if (Thread.currentThread().isInterrupted()) {
                    throw new InterruptedException(_jbr.getKString(
                    _jbr.X_DMQ_SENDRETRY_INTERRUPTED, mid, this.toString()));
                }
                if (attempts > 0 && _sendInterval > 0) {
                    Thread.sleep(_sendInterval);
                }
                try {
                    if (_connException) {
                        closeJMS();
                        initJMS();
                    } else if (!_stayConnected) {
                        initJMS();
                    }
                    if (attempts == 0) {
                        if (_msgTransformer != null) {
                            _msgTransformer.init(_session, Bridge.JMS_TYPE);
                            try {
                           
                            msgToSend = _msgTransformer.transform(m, true, null,
                                                        l.getSourceProviderName(),
                                                        l.getTargetProviderName(),
                                                        _dmqProps);
                            if (_fi.FAULT_INJECTION) {
                                Map p = new HashMap();
                                p.put(FaultInjection.DMQ_NAME_PROP, _name);
                                _fi.setLogger(_logger);
                                _fi.checkFaultAndThrowException(FaultInjection.FAULT_DMQ_TRANSFORM_2, p, "javax.jms.JMSException", true);
                            }

                            } catch (Exception e) {
                            msgToSend = m;
                            String[] eparam = {"MessageTransformer", ""+mid, l.toString()};
                            _logger.log(Level.WARNING, _jbr.getKString(_jbr.W_EXCEPTION_DMQ_MSG, eparam), e);
                            }
                        }
                        boolean truncate = true;
                        if (msgToSend instanceof Serializable) {
                            truncate = false;
                            try {
                            om.setObject((Serializable)msgToSend);
                            } catch (Exception e) {
                            truncate = true;
                            String[] eparam = {"ObjectMessage.setObject()", ""+mid, l.toString()};
                            _logger.log(Level.WARNING, _jbr.getKString(_jbr.W_EXCEPTION_DMQ_MSG, eparam), e);
                            }
                        }
                        if (truncate) {
                            try {
                            om.setBooleanProperty(
                               DMQProperty.JMS_SUN_JMSBRIDGE_DMQ_BODY_TRUNCATED.toString(),
                               Boolean.valueOf("true"));
                            } catch (Exception e) {
                            _logger.log(Level.WARNING,
                            "Exception in setting DMQ body-truncated property for DMQ message "+
                             m+ "in "+l, e);
                            }
                            try {
                            om.setObject((Serializable)msgToSend.toString());
                            } catch (Exception e) {
                            String[] eparam = {"ObjectMessage.setObject()", ""+mid, l.toString()};
                            _logger.log(Level.WARNING, _jbr.getKString(_jbr.W_EXCEPTION_TRUNCATE_DMQ_MSG, eparam), e);
                            }
                        }
                    }
          
                    if (_fi.FAULT_INJECTION) {
                        Map p = new HashMap();
                        p.put(FaultInjection.DMQ_NAME_PROP, _name);
                        _fi.setLogger(_logger);
                        _fi.checkFaultAndThrowException(FaultInjection.FAULT_DMQ_SEND_1, p, "javax.jms.JMSException", true);
                    }
                    _producer.send(om, deliveryMode, priority, _timeToLive);
                    msgCount++;
                    sent = true;

                } catch (Throwable t) {
                    attempts++;
                    _connException = true;
                    String[] eparam = {""+mid, this.toString(), l.toString(), attempts+"("+_sendInterval+")"};
                    _logger.log(Level.SEVERE, _jbr.getKString(_jbr.E_FAIL_SEND_ATTEMPTS, eparam), t);
                }
            } while (!sent && attempts <= _maxSendAttempts && !el.hasEventOccurred());
        } finally {
             _notifier.removeEventListener(el);
            if (!_stayConnected) {
                closeJMS();
            }
        }
    }

    public static void logMessage(Message msg, String mid, Link l, Logger logger) {

        StringBuffer buf = new  StringBuffer();
        try {

        buf.append("Logging message going to DMQ for "+l);
        buf.append("\n");
        buf.append("\tJMS Headers:");
        buf.append("\n");
        try {
            buf.append("\tJMSMessageID="+msg.getJMSMessageID());
        } catch (Throwable t) {
            buf.append("\tUnable to get JMSMessageID header from message "+mid+" for "+l+": "+t.getMessage());
        }
        buf.append("\n");
        try {
            buf.append("\tJMSDestination="+msg.getJMSDestination());
        } catch (Throwable t) {
            buf.append("\tUnable to get JMSDestination header from message "+mid+" for "+l+": "+t.getMessage());
        }
        buf.append("\n");
        try {
            buf.append("\tJMSTimestamp="+msg.getJMSTimestamp());
        } catch (Throwable t) {
            buf.append("\tUnable to get JMSTimestamp header from message "+mid+" for "+l+": "+t.getMessage());
        }
        buf.append("\n");
        try {
            buf.append("\tJMSExpiration="+msg.getJMSExpiration());
        } catch (Throwable t) {
            buf.append("\tUnable to get JMSExpiration header from message "+mid+" for "+l+": "+t.getMessage());
        }
        buf.append("\n");
        try {
            buf.append("\tJMSDeliveryMode="+msg.getJMSDeliveryMode());
        } catch (Throwable t) {
            buf.append("\tUnable to get JMSDeliveryMode header from message "+mid+" for "+l+": "+t.getMessage());
        }
        buf.append("\n");
        try {
            buf.append("\tJMSCorrelationID="+msg.getJMSCorrelationID());
        } catch (Throwable t) {
            buf.append("\tUnable to get JMSCorrelationID header from message "+mid+" for "+l+": "+t.getMessage());
        }
        buf.append("\n");
        try {
            buf.append("\tJMSPriority="+msg.getJMSPriority());
        } catch (Throwable t) {
            buf.append("\tUnable to get JMSPriority header from message "+mid+" for "+l+": "+t.getMessage());
        }
        buf.append("\n");
        try {
            buf.append("\tJMSRedelivered="+msg.getJMSRedelivered());
        } catch (Throwable t) {
            buf.append("\tUnable to get JMSRedelivered header from message "+mid+" for "+l+": "+t.getMessage());
        }
        buf.append("\n");
        try {
            buf.append("\tJMSReplyTo="+msg.getJMSReplyTo());
        } catch (Throwable t) {
            buf.append("\tUnable to get JMSReplyTo header from message "+mid+" for "+l+": "+t.getMessage());
        }
        buf.append("\n");
        try {
            buf.append("\tJMSType="+msg.getJMSType());
        } catch (Throwable t) {
            buf.append("\tUnable to get JMSType header from message "+mid+" for "+l+": "+t.getMessage());
        }
        buf.append("\n");

        buf.append("\n");
        buf.append("\tJMS Properties:");
        buf.append("\n");
        Enumeration en = null;
        try {
        en = msg.getPropertyNames();
        } catch (Throwable t) {
            buf.append("Unable to get PropertyNames from message "+mid+" for "+l+": "+ t.getMessage());
        }
        buf.append("\n");
        String key = null;
        Object value = null;
        while (en != null && en.hasMoreElements()) {
            key = (String)en.nextElement();
            try {
            buf.append("\t"+key+"="+msg.getObjectProperty(key));
            } catch (Throwable t) {
            buf.append("Unable to get property "+key+" value from message "+mid+" for "+l+": "+t.getMessage());
            }
            buf.append("\n");
        }
        buf.append("\n");
        buf.append("\tMessage.toString:");
        buf.append("\n");
        try {
            buf.append("\ttoString="+msg);
        } catch (Throwable t) {
            buf.append("\tUnable to get Message.toString() from message "+mid+" for "+l+": "+t.getMessage());
        }

        } finally {
            logger.log(Level.INFO, buf.toString());
        }
    }
    public String toString() {
        StringBuffer sb = new StringBuffer();
        sb.append("dmq("+getName()+")[");
        sb.append(((Refable)_cf).getRef()).append("::");
        sb.append(getDestinationName());
        sb.append("]");
        return sb.toString();
    }

    public String getName() {
        return _name;
    }

    public void setName(String name) {
        _name = name;
    }

    public String getProviderName() {
        String pn = _providerName;
        if (pn != null) return pn;

        return ((Refable)_cf).getRefed().getClass().getName();
    }

    public String getDestinationName() {
        try {

        if (_dest instanceof Queue) {
            return "queue:"+((Queue)(_dest)).getQueueName();
        } else if (_dest instanceof Topic) {
            return "topic:"+((Topic)(_dest)).getTopicName();
        } else {
            return _dest.toString();
        }

        } catch (Exception e) {
            _logger.log(Level.WARNING,
            "Exception in get destination name for dmq "+this, e);
            return _dest.toString();
        }
    }

    public void setConnectionFactory(Object cf) {
        _cf = cf;
    }

    public void setDestination(Object dest) {
        _dest = dest;
    }

    public Object getDestination() {
        return _dest;
    }

    public void setLogger(Logger l) {
        _logger = l;
    }
}
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