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/*
* 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 com.sun.appserv.jdbc.DataSource;
import com.sun.appserv.connectors.internal.api.ConnectorsUtil;
import com.sun.appserv.connectors.internal.api.ConnectorRuntime;
import com.sun.appserv.connectors.internal.spi.ConnectorNamingEventListener;
import com.sun.appserv.connectors.internal.spi.ConnectorNamingEvent;
import com.sun.ejb.containers.EjbContainerUtilImpl;
import com.sun.jdo.api.persistence.support.JDOFatalInternalException;
import com.sun.jdo.api.persistence.support.PersistenceManagerFactory;
import org.glassfish.persistence.common.I18NHelper;
import org.glassfish.internal.api.Globals;
/** Sun specific implementation for TransactionHelper interface.
* This class has a special implementation for
* <code>registerSynchronization</code>, because it uses a special
* object that registers Synchronization instance to be processed after
* any bean's or container beforeCompletion method, but before the corresponding
* afterCompletion.
*/
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<PersistenceManagerFactory> pmf_list;
private final static Object pmf_listSyncObject = new Object();
/**
* Array of registered ApplicationLifeCycleEventListener
*/
private final List<ApplicationLifeCycleEventListener> applicationLifeCycleEventListeners = new ArrayList<ApplicationLifeCycleEventListener>();
/** 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 connectorRuntime = Globals.getDefaultHabitat().getByContract(ConnectorRuntime.class);
connectorRuntime.registerConnectorNamingEventListener(helper);
pmf_list = new ArrayList<PersistenceManagerFactory>();
}
/** 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 managing local transactions.
static private final String AS_TM_NAME = "java:appserver/TransactionManager"; //NOI18N
// TransactionManager instance used for managing local transactions.
static TransactionManager appserverTM = null;
static {
try {
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.appserverTM.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 void registerSynchronization(Transaction jta, Synchronization sync)
throws RollbackException, SystemException {
EjbContainerUtilImpl.getInstance().registerPMSync(jta, sync);
}
/** 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 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 notifyApplicationUnloaded(ClassLoader classLoader) {
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 = ConnectorsUtil.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();
}
}
}
}
}