/*
* JBoss, Home of Professional Open Source.
* Copyright 2011, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.as.ejb3.remote;
import com.arjuna.ats.arjuna.common.Uid;
import com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple;
import com.arjuna.ats.internal.jta.transaction.arjunacore.jca.SubordinateTransaction;
import com.arjuna.ats.internal.jta.transaction.arjunacore.jca.SubordinationManager;
import com.arjuna.ats.internal.jta.transaction.arjunacore.jca.TransactionImporter;
import org.jboss.ejb.client.UserTransactionID;
import org.jboss.ejb.client.XidTransactionID;
import org.jboss.msc.inject.Injector;
import org.jboss.msc.service.Service;
import org.jboss.msc.service.ServiceName;
import org.jboss.msc.service.StartContext;
import org.jboss.msc.service.StartException;
import org.jboss.msc.service.StopContext;
import org.jboss.msc.value.InjectedValue;
import javax.transaction.NotSupportedException;
import javax.transaction.SystemException;
import javax.transaction.Transaction;
import javax.transaction.TransactionManager;
import javax.transaction.UserTransaction;
import javax.transaction.xa.XAException;
import javax.transaction.xa.Xid;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
/**
* @author Jaikiran Pai
*/
public class EJBRemoteTransactionsRepository implements Service<EJBRemoteTransactionsRepository> {
public static final ServiceName SERVICE_NAME = ServiceName.JBOSS.append("ejb").append("remote-transactions-repository");
private final InjectedValue<TransactionManager> transactionManagerInjectedValue = new InjectedValue<TransactionManager>();
private final InjectedValue<UserTransaction> userTransactionInjectedValue = new InjectedValue<UserTransaction>();
private final Map<UserTransactionID, Uid> userTransactions = Collections.synchronizedMap(new HashMap<UserTransactionID, Uid>());
@Override
public void start(StartContext context) throws StartException {
}
@Override
public void stop(StopContext context) {
}
@Override
public EJBRemoteTransactionsRepository getValue() throws IllegalStateException, IllegalArgumentException {
return this;
}
public TransactionManager getTransactionManager() {
return this.transactionManagerInjectedValue.getValue();
}
/**
* Removes any references maintained for the passed <code>{@link UserTransactionID}</code>
* @param userTransactionID User transaction id
* @return Returns the {@link Transaction} corresponding to the passed <code>userTransactionID</code>. If there
* is no such transaction, then this method returns null
*/
public Transaction removeUserTransaction(final UserTransactionID userTransactionID) {
final Uid uid = this.userTransactions.remove(userTransactionID);
if (uid == null) {
return null;
}
return TransactionImple.getTransaction(uid);
}
/**
* @param userTransactionID User transaction id
* @return Returns the {@link Transaction} corresponding to the passed <code>userTransactionID</code>. If there
* is no such transaction, then this method returns null
*/
public Transaction getUserTransaction(final UserTransactionID userTransactionID) {
final Uid uid = this.userTransactions.get(userTransactionID);
if (uid == null) {
return null;
}
return TransactionImple.getTransaction(uid);
}
/**
* {@link javax.transaction.UserTransaction#begin() Begins} a new {@link UserTransaction} and
* associates it with the passed {@link UserTransactionID}.
* @param userTransactionID
* @return Returns the transaction that has begun
* @throws SystemException
* @throws NotSupportedException
*/
Transaction beginUserTransaction(final UserTransactionID userTransactionID) throws SystemException, NotSupportedException {
this.getUserTransaction().begin();
// get the tx that just got created and associated with the transaction manager
final TransactionImple newlyAssociatedTx = TransactionImple.getTransaction();
final Uid uid = newlyAssociatedTx.get_uid();
this.userTransactions.put(userTransactionID, uid);
return newlyAssociatedTx;
}
/**
* Returns a {@link SubordinateTransaction} associated with the passed {@link XidTransactionID}.
* If there's no such transaction, then this method returns null.
*
* @param xidTransactionID The {@link XidTransactionID}
* @return
* @throws XAException
*/
public SubordinateTransaction getImportedTransaction(final XidTransactionID xidTransactionID) throws XAException {
final Xid xid = xidTransactionID.getXid();
final TransactionImporter transactionImporter = SubordinationManager.getTransactionImporter();
return transactionImporter.getImportedTransaction(xid);
}
/**
* Imports a {@link Transaction} into the {@link SubordinationManager} and associates it with the
* passed {@link org.jboss.ejb.client.XidTransactionID#getXid()} Xid}. Returns the imported transaction
*
* @param xidTransactionID The {@link XidTransactionID}
* @param txTimeout The transaction timeout
* @return
* @throws XAException
*/
Transaction importTransaction(final XidTransactionID xidTransactionID, final int txTimeout) throws XAException {
final TransactionImporter transactionImporter = SubordinationManager.getTransactionImporter();
return transactionImporter.importTransaction(xidTransactionID.getXid(), txTimeout);
}
public UserTransaction getUserTransaction() {
return this.userTransactionInjectedValue.getValue();
}
public Injector<TransactionManager> getTransactionManagerInjector() {
return this.transactionManagerInjectedValue;
}
public Injector<UserTransaction> getUserTransactionInjector() {
return this.userTransactionInjectedValue;
}
}