/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 1997-2007 Sun Microsystems, Inc. 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.html
* or glassfish/bootstrap/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 glassfish/bootstrap/legal/LICENSE.txt.
* Sun designates this particular file as subject to the "Classpath" exception
* as provided by Sun in the GPL Version 2 section of the License file that
* accompanied this code. If applicable, add the following below the License
* Header, with the fields enclosed by brackets [] replaced by your own
* identifying information: "Portions Copyrighted [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.
*/
/*
* SunTransactionHelper.java
*
* Created on March 13, 2003.
*/
package com.sun.jdo.spi.persistence.support.sqlstore.ejb;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.ResourceBundle;
import javax.transaction.*;
import javax.naming.InitialContext;
import javax.ejb.EJBObject;
import javax.ejb.EJBLocalObject;
import javax.ejb.EJBContext;
import javax.ejb.EntityContext;
import com.sun.jts.jta.*;
import com.sun.appserv.jdbc.DataSource;
import com.sun.jdo.api.persistence.support.JDOFatalInternalException;
import com.sun.jdo.api.persistence.support.PersistenceManagerFactory;
import com.sun.jdo.spi.persistence.utility.I18NHelper;
import com.sun.enterprise.connectors.ConnectorNamingEvent;
import com.sun.enterprise.connectors.ConnectorNamingEventListener;
import com.sun.enterprise.connectors.ConnectorRuntime;
import com.sun.enterprise.resource.ResourceInstaller;
import com.sun.enterprise.server.event.ApplicationEvent;
import com.sun.enterprise.server.event.ApplicationLoaderEventListener;
import com.sun.enterprise.server.event.ApplicationLoaderEventNotifier;
import com.sun.enterprise.server.event.EjbContainerEvent;
/** Sun specific implementation for TransactionHelper interface.
* Though this class does not have special implementation for
* <code>registerSynchronization</code>, it uses a special Transaction
* object that registers Synchronization instance to be processed after
* any bean's beforeCompletion method.
*/
public class SunTransactionHelper extends TransactionHelperImpl
implements ApplicationLoaderEventListener,
ConnectorNamingEventListener
{
/** I18N message handler */
private final static ResourceBundle messages = I18NHelper.loadBundle(
"com.sun.jdo.spi.persistence.support.sqlstore.Bundle", // NOI18N
SunTransactionHelper.class.getClassLoader());
private static List pmf_list;
private final static Object pmf_listSyncObject = new Object();
/**
* Array of registered ApplicationLifeCycleEventListener
*/
private List applicationLifeCycleEventListeners = new ArrayList();
/** Garantees singleton.
* Registers itself during initial load
*/
static {
SunTransactionHelper helper = new SunTransactionHelper();
EJBHelper.registerTransactionHelper (helper);
// Register with ApplicationLoaderEventNotifier to receive Sun
// Application Server specific lifecycle events.
ApplicationLoaderEventNotifier.getInstance().addListener(helper);
ConnectorRuntime.getRuntime().getResourceRebindEventNotifier().addListener(helper);
pmf_list = new ArrayList();
}
/** Default constructor should not be public */
SunTransactionHelper() { }
// helper class for looking up the TransactionManager instances.
static private class TransactionManagerFinder {
// JNDI name of the TransactionManager used for transaction synchronization.
static private final String PM_TM_NAME = "java:pm/TransactionManager"; //NOI18N
// JNDI name of the TransactionManager used for managing local transactions.
static private final String AS_TM_NAME = "java:appserver/TransactionManager"; //NOI18N
// TransactionManager instance used for transaction synchronization.
static TransactionManager tm = null;
// TransactionManager instance used for managing local transactions.
static TransactionManager appserverTM = null;
static {
try {
tm = (TransactionManager) (new InitialContext()).lookup(PM_TM_NAME);
appserverTM = (TransactionManager) (new InitialContext()).lookup(AS_TM_NAME);
} catch (Exception e) {
throw new JDOFatalInternalException(e.getMessage());
}
}
}
/** SunTransactionHelper specific code */
public Transaction getTransaction(){
try{
return TransactionManagerFinder.tm.getTransaction();
} catch (Exception e) {
throw new JDOFatalInternalException(e.getMessage());
} catch (ExceptionInInitializerError err) {
throw new JDOFatalInternalException(err.getMessage());
}
}
/** SunTransactionHelper specific code */
public UserTransaction getUserTransaction() {
try {
InitialContext ctx =
(InitialContext) Class.forName("javax.naming.InitialContext").newInstance(); //NOI18N
return (UserTransaction)ctx.lookup("java:comp/UserTransaction"); //NOI18N
} catch (Exception e) {
throw new JDOFatalInternalException(e.getMessage());
}
}
/** SunTransactionHelper specific code */
public PersistenceManagerFactory replaceInternalPersistenceManagerFactory(
PersistenceManagerFactory pmf) {
synchronized(pmf_listSyncObject) {
int i = pmf_list.indexOf(pmf);
if (i == -1) {
// New PersistenceManagerFactory. Remember it.
pmf_list.add(pmf);
return pmf;
}
return (PersistenceManagerFactory)pmf_list.get(i);
}
}
/**
* Returns name prefix for DDL files extracted from the info instance by the
* application server specific code.
* SunTransactionHelper specific code. Delegates the actual implementation
* to DeploymentHelper#getDDLNamePrefix(Object);
*
* @param info the instance to use for the name generation.
* @return name prefix as String.
*/
public String getDDLNamePrefix(Object info) {
return DeploymentHelper.getDDLNamePrefix(info);
}
/** Called in a managed environment to get a Connection from the application
* server specific resource. In a non-managed environment returns null as
* it should not be called.
* SunTransactionHelper specific code uses com.sun.appserv.jdbc.DataSource
* to get a Connection.
*
* @param resource the application server specific resource.
* @param username the resource username. If null, Connection is requested
* without username and password validation.
* @param password the password for the resource username.
* @return a Connection.
* @throws java.sql.SQLException.
*/
public java.sql.Connection getNonTransactionalConnection(
Object resource, String username, String password)
throws java.sql.SQLException {
java.sql.Connection rc = null;
// resource is expected to be com.sun.appserv.jdbc.DataSource
if (resource instanceof DataSource) {
DataSource ds = (DataSource)resource;
if (username == null) {
rc = ds.getNonTxConnection();
} else {
rc = ds.getNonTxConnection(username, password);
}
} else {
throw new JDOFatalInternalException(I18NHelper.getMessage(
messages, "ejb.SunTransactionHelper.wrongdatasourcetype", //NOI18N
resource.getClass().getName()));
}
return rc;
}
/** SunTransactionHelper specific code */
public TransactionManager getLocalTransactionManager() {
try {
return TransactionManagerFinder.appserverTM;
} catch (ExceptionInInitializerError err) {
throw new JDOFatalInternalException(err.getMessage());
}
}
/**
* @inheritDoc
*/
public void registerApplicationLifeCycleEventListener(
ApplicationLifeCycleEventListener listener) {
synchronized(applicationLifeCycleEventListeners) {
applicationLifeCycleEventListeners.add(listener);
}
}
//-------------------ApplicationLifeCycleEventListener Methods --------------//
/**
* @inheritDoc
*/
public void handleApplicationEvent(ApplicationEvent event) {
// Change to switch-case if handling more than one events.
if(ApplicationEvent.AFTER_APPLICATION_UNLOAD == event.getEventType() ) {
ClassLoader classLoader = event.getClassLoader();
for (Iterator iterator = applicationLifeCycleEventListeners.iterator();
iterator.hasNext();) {
ApplicationLifeCycleEventListener applicationLifeCycleEventListener =
(ApplicationLifeCycleEventListener) iterator.next();
applicationLifeCycleEventListener.notifyApplicationUnloaded(classLoader);
}
}
}
/**
* @inheritDoc
*/
public void handleEjbContainerEvent(EjbContainerEvent event) {
//Ignore EjbContainerEvents
}
/**
* @inheritDoc
*/
public void connectorNamingEventPerformed(ConnectorNamingEvent event){
if(event.getEventType() == ConnectorNamingEvent.EVENT_OBJECT_REBIND){
String dsName = ResourceInstaller.getPMJndiName(event.getJndiName());
cleanUpResources(dsName);
} // Ignore all other events.
}
/**
* Removes all entries that correspond to the same connection factory name.
* @param name the connection factory name.
*/
private void cleanUpResources(String name) {
synchronized(pmf_listSyncObject) {
for (Iterator it = pmf_list.iterator(); it.hasNext(); ) {
PersistenceManagerFactory pmf = (PersistenceManagerFactory)it.next();
if (pmf.getConnectionFactoryName().equals(name)) {
it.remove();
}
}
}
}
}
|
