Glassfish example source code file (LegacyJmsRecoveryResourceHandler.java)

This example Glassfish source code file (LegacyJmsRecoveryResourceHandler.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Glassfish tags/keywords

class, class, exception, externaljndiresource, initialcontext, inject, list, log, logging, method, method, naming, object, object, reflection, string, string, util, xaresource

The Glassfish LegacyJmsRecoveryResourceHandler.java source code

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 1997-2010 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
 * Oracle designates this particular file as subject to the "Classpath"
 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
 * "Portions Copyright [year] [name of copyright owner]"
 *
 * Contributor(s):
 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
 * only if the new code is made subject to such option by the copyright
 * holder.
 */

package com.sun.enterprise.connectors.jms.system;

import com.sun.enterprise.config.serverbeans.*;
import com.sun.enterprise.transaction.spi.RecoveryResourceHandler;
import com.sun.enterprise.util.LocalStringManagerImpl;
import com.sun.logging.LogDomains;

import javax.naming.NamingException;
import javax.naming.InitialContext;
import javax.transaction.xa.XAResource;
//import javax.jms.Session;
//import javax.jms.JMSException;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.*;
import java.lang.reflect.Method;


import org.jvnet.hk2.annotations.Service;
import org.jvnet.hk2.annotations.Inject;
import org.jvnet.hk2.component.Habitat;

/**
 * Recovery Handler for JMS Resources
 *
 */
@Service
public class LegacyJmsRecoveryResourceHandler implements RecoveryResourceHandler {

    @Inject
    private TransactionService txService;

    @Inject
    private Resources resources;

    @Inject
    private Habitat connectorRuntimeHabitat;

    static final String JMS_QUEUE_CONNECTION_FACTORY = "javax.jms.QueueConnectionFactory";
    static final String JMS_TOPIC_CONNECTION_FACTORY = "javax.jms.TopicConnectionFactory";

    private static Logger _logger = LogDomains.getLogger(LegacyJmsRecoveryResourceHandler.class, LogDomains.JMS_LOGGER);
    final private static LocalStringManagerImpl localStrings = new LocalStringManagerImpl(LegacyJmsRecoveryResourceHandler.class);


     public void loadXAResourcesAndItsConnections(List xaresList, List connList)
     {
            try {
            Collection<ExternalJndiResource> jndiResources = resources.getResources(ExternalJndiResource.class);
            InitialContext ic = new InitialContext();
            for (ExternalJndiResource jndiResource : jndiResources) {
                if (isEnabled(jndiResource)) {
                    try {
                        ic.lookup(jndiResource.getJndiName());
                         if (!isJMSConnectionFactory(jndiResource)) {
                            continue;
                        }

                        String jndiName = jndiResource.getJndiName();
                        Object jmsXAConnectionFactory;
                        boolean isQueue;
                        if (jndiResource instanceof ExternalJndiResource) {
                            Object objext = ic.lookup(jndiName);
                            if (!instanceOf(objext, "ConnectionFactory")) {
                                throw new NamingException(localStrings.getLocalString("recovery.unexpected_objtype",
                                "Unexpected object type "+objext.getClass().getName()+" for "+ jndiName,
                                new Object[]{objext.getClass().getName(), jndiName}));
                            }
                            jmsXAConnectionFactory = wrapJMSConnectionFactoryObject(objext);
                            isQueue = instanceOf(objext, "QueueConnectionFactory");
                        }
                        else {
                            jmsXAConnectionFactory = ic.lookup(getXAConnectionFactoryName(jndiName));
                            isQueue = instanceOf(jmsXAConnectionFactory, "JMSXAQueueConnectionFactory");
                        }
                        recoverJMSXAResource(xaresList, connList, jmsXAConnectionFactory, isQueue);
                    //} catch (NamingException ne) {
                        //If you are here then it is most probably an embedded RAR resource
                        //So we need to explicitly load that rar and create the resources

                    } catch (Exception ex) {
                        _logger.log(Level.SEVERE, "error.loading.connector.resources.during.recovery", jndiResource.getJndiName());
                        if (_logger.isLoggable(Level.FINE)) {
                            _logger.log(Level.FINE, ex.toString(), ex);
                        }
                    }
                }
            }
        } catch (NamingException ne) {
            _logger.log(Level.SEVERE, "error.loading.connector.resources.during.recovery", ne.getMessage());
            if (_logger.isLoggable(Level.FINE)) {
                _logger.log(Level.FINE, ne.toString(), ne);
            }
        }
     }
     public void closeConnections(List connList) {
        for (Object obj : connList) {
            try {
                 closeXAConnection(obj);
            } catch (Exception ex) {
                _logger.log(Level.WARNING, "Connector Resource could not be closed", ex);
            }
        }
    }
  private boolean isEnabled(ExternalJndiResource resource) {
        return Boolean.valueOf(resource.getEnabled());
    }

 public boolean isJMSConnectionFactory(ExternalJndiResource resType_) {
        if (resType_ == null) return false;

        return (JMS_QUEUE_CONNECTION_FACTORY.equals(resType_.getResType()) ||
                JMS_TOPIC_CONNECTION_FACTORY.equals(resType_.getResType()));
    }

  private boolean instanceOf(Object obj, String interfaceName)
  {
      if(obj==null) return false;
        //Class jmsXAQueueConnectionFactory = Class.forName("JMSXAQueueConnectionFactory");
        Class[] classes = obj.getClass().getInterfaces();
        for (Class aClass : classes) {
            String aClassName = aClass.getName();
            if (aClassName.indexOf(interfaceName) != -1)
                return true;
        }

      return false;

  }
 //-------------------------

   /* private void recoverJMSXAResources(Context ic,
    Vector xaresList, Vector connList, Set jmsRes) {
        for(Iterator iter = jmsRes.iterator(); iter.hasNext();) {
            J2EEResource next = (J2EEResource)iter.next();
            if (next instanceof ExternalJndiResource) {
                if (!((ExternalJndiResource)next).isJMSConnectionFactory()) {
                    continue;
                }
            }

            String jndiName = next.getName();
            try {
                Object jmsXAConnectionFactory;
                boolean isQueue;
                if (next instanceof ExternalJndiResource) {
                    Object objext = ic.lookup(jndiName);
                    if (!(objext instanceof javax.jms.ConnectionFactory)) {
                        throw new NamingException(localStrings.getLocalString("recovery.unexpected_objtype",
                        "Unexpected object type "+objext.getClass().getName()+" for "+ jndiName,
                        new Object[]{objext.getClass().getName(), jndiName}));
                    }
                    jmsXAConnectionFactory = wrapJMSConnectionFactoryObject(objext);
                    isQueue = (objext instanceof javax.jms.QueueConnectionFactory);
                }
                else {
                    jmsXAConnectionFactory = ic.lookup(getXAConnectionFactoryName(jndiName));
                    isQueue = (jmsXAConnectionFactory instanceof JMSXAQueueConnectionFactory);
                }
                recoverJMSXAResource(xaresList, connList, jmsXAConnectionFactory, isQueue);
            } catch (Exception ex) {
                _logger.log(Level.SEVERE,"datasource.xadatasource_error",jndiName);
                _logger.log(Level.SEVERE,"datasource.xadatasource_error_excp",ex);
            }
        }
    }  */


    private void recoverJMSXAResource(List xaresList, List connList,
    Object jmsXAConnectionFactory, boolean isQueue ) throws Exception {
        if (isQueue) {
           // JMSXAQueueConnectionFactory fac =
            //(JMSXAQueueConnectionFactory) obj;

            Object jmsXAQueueConnection = getXAConnection (jmsXAConnectionFactory, "createXAQueueConnection");
            connList.add(jmsXAQueueConnection);

            XAResource xares = getXAResource(jmsXAQueueConnection, "createXAQueueSession");//con.createXAQueueSession
            //(true, Session.AUTO_ACKNOWLEDGE).getXAResource();
            xaresList.add(xares);
        } else {
            // XATopicConnectionFactory
            //JMSXATopicConnectionFactory fac =
            //(JMSXATopicConnectionFactory) obj;
            Object jmsXATopicConnection = getXAConnection(jmsXAConnectionFactory, "createXATopicConnection");
            connList.add(jmsXATopicConnection);

            XAResource xares = getXAResource(jmsXATopicConnection, "createXATopicSession");
            //XAResource xares = con.createXATopicSession
            //(true, Session.AUTO_ACKNOWLEDGE).getXAResource();
            xaresList.add(xares);
        }
    }
    private Object jmsAdmin = null;
    private Object getJmsAdmin()
    {
        if (jmsAdmin != null)  return jmsAdmin;
        try{
               Class jmsAdminFactoryClass = Class.forName("com.sun.messaging.jmq.admin.jmsspi.JMSAdminFactoryImpl");
               Object jmsAdminFactory = jmsAdminFactoryClass.newInstance();

               Method m = jmsAdminFactoryClass.getMethod("getJMSAdmin", null);
               jmsAdmin = m.invoke(jmsAdminFactory, null);
               return jmsAdmin;
           }catch (Exception ex){
                  throw new RuntimeException ("Unable to create an JmsAdmin object. Cause - " + ex.getMessage(), ex);
           }

    }

    /**
         * Form the name of the internal XA Connection Factory
         * for each javax.jms.ConnectionFactory
         */
      private String getXAConnectionFactoryName(String connectionFactoryName) {
            return "JMSXA" + connectionFactoryName + "__jmsxa";
        }

    /**
     * wrap a JMS standard XAQueue/TopicConnectionFactory or Queue/TopicConnectionFactory
     *
     * This method is used for foreign (non-built-in) JMS provider
     *
     * @return a Object of JMSXAConnectionFactory
     * @throws Exception if syntax error
     */
    private Object wrapJMSConnectionFactoryObject(Object obj)
        throws Exception {

        Method m = getJmsAdmin().getClass().getMethod("wrapJMSConnectionFactoryObject", obj.getClass());
        return  m.invoke(getJmsAdmin(), obj);
    }
   private Object getXAConnection(Object XAconnectionFactory, String methodName)
   {
       try{
         Class connectionFactoryClass = XAconnectionFactory.getClass();
         Method m = connectionFactoryClass.getMethod(methodName, null);
         return m.invoke(XAconnectionFactory, null);
       }catch(Exception e){
           //todo: need to handle this better
       }
       return null;

   }
   private XAResource getXAResource(Object XAConnection, String methodName)
   {
       try{
         Class connectionClass = XAConnection.getClass();
         Class[] paramtypes = {boolean.class, int.class};
         Method m = connectionClass.getMethod(methodName, paramtypes);
         Object jmsXASession = m.invoke(XAConnection, new Object[]{true, 1}); //Session.AUTO_ACKNOWLEDGE});

         Class xaSessionClass =  jmsXASession.getClass();
         Method m1 = xaSessionClass.getMethod("getXAResource", null);
         return (XAResource) m1.invoke(jmsXASession, null);
       }catch(Exception e){
           //todo: need to handle this better
       }
       return null;
   }
    private void closeXAConnection(Object jmsXAConnection){

        try{
        Class jmsXAConnectionClass = jmsXAConnection.getClass();
        Method m = jmsXAConnectionClass.getMethod("close", null);
        m.invoke(jmsXAConnection, null);
        }catch (Exception e){
            //todo: need to handle this better
        }

    }
}