/*
* JBoss, Home of Professional Open Source.
* Copyright 2014, 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.txn.ee.concurrency;
import org.jboss.as.ee.concurrent.handle.ContextHandleFactory;
import org.jboss.as.ee.concurrent.handle.ResetContextHandle;
import org.jboss.as.ee.concurrent.handle.SetupContextHandle;
import org.jboss.as.txn.logging.TransactionLogger;
import org.jboss.msc.inject.InjectionException;
import org.jboss.msc.inject.Injector;
import javax.enterprise.concurrent.ContextService;
import javax.transaction.Status;
import javax.transaction.SystemException;
import javax.transaction.Transaction;
import javax.transaction.TransactionManager;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.Map;
/**
* A context handle factory which is responsible for preventing transaction leaks.
*
* @author Eduardo Martins
*/
public class TransactionLeakContextHandleFactory implements ContextHandleFactory, Injector<TransactionManager> {
public static final String NAME = "TRANSACTION_LEAK";
private TransactionManager transactionManager;
@Override
public SetupContextHandle saveContext(ContextService contextService, Map<String, String> contextObjectProperties) {
return new TransactionLeakSetupContextHandle(transactionManager);
}
@Override
public String getName() {
return NAME;
}
@Override
public int getChainPriority() {
// must be higher/after other ee setup actions, which include the connector invocation context setup
return 600;
}
@Override
public void writeSetupContextHandle(SetupContextHandle contextHandle, ObjectOutputStream out) throws IOException {
}
@Override
public SetupContextHandle readSetupContextHandle(ObjectInputStream in) throws IOException, ClassNotFoundException {
return new TransactionLeakSetupContextHandle(transactionManager);
}
@Override
public void inject(TransactionManager value) throws InjectionException {
transactionManager = value;
}
@Override
public void uninject() {
transactionManager = null;
}
private static class TransactionLeakSetupContextHandle implements SetupContextHandle {
private final TransactionManager transactionManager;
private TransactionLeakSetupContextHandle(TransactionManager transactionManager) {
this.transactionManager = transactionManager;
}
@Override
public ResetContextHandle setup() throws IllegalStateException {
Transaction transactionOnSetup = null;
if(transactionManager != null) {
try {
transactionOnSetup = transactionManager.getTransaction();
} catch (SystemException e) {
throw new IllegalStateException(e);
}
}
return new TransactionLeakResetContextHandle(transactionManager, transactionOnSetup);
}
@Override
public String getFactoryName() {
return NAME;
}
// serialization
private void writeObject(ObjectOutputStream out) throws IOException {
throw TransactionLogger.ROOT_LOGGER.serializationMustBeHandledByTheFactory();
}
private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException {
throw TransactionLogger.ROOT_LOGGER.serializationMustBeHandledByTheFactory();
}
}
private static class TransactionLeakResetContextHandle implements ResetContextHandle {
private final TransactionManager transactionManager;
private final Transaction transactionOnSetup;
private TransactionLeakResetContextHandle(TransactionManager transactionManager, Transaction transactionOnSetup) {
this.transactionManager = transactionManager;
this.transactionOnSetup = transactionOnSetup;
}
@Override
public void reset() {
if(transactionManager != null) {
try {
final Transaction transactionOnReset = transactionManager.getTransaction();
if(transactionOnReset != null && !transactionOnReset.equals(transactionOnSetup)) {
switch (transactionOnReset.getStatus()) {
case Status.STATUS_ACTIVE:
case Status.STATUS_COMMITTING:
case Status.STATUS_MARKED_ROLLBACK:
case Status.STATUS_PREPARING:
case Status.STATUS_ROLLING_BACK:
case Status.STATUS_PREPARED:
try {
TransactionLogger.ROOT_LOGGER.rollbackOfTransactionStartedInEEConcurrentInvocation();
transactionManager.rollback();
} catch (Throwable e) {
TransactionLogger.ROOT_LOGGER.failedToRollbackTransaction(e);
} finally {
try {
transactionManager.suspend();
} catch (Throwable e) {
TransactionLogger.ROOT_LOGGER.failedToSuspendTransaction(e);
}
}
}
}
} catch (SystemException e) {
TransactionLogger.ROOT_LOGGER.systemErrorWhileCheckingForTransactionLeak(e);
}
}
}
@Override
public String getFactoryName() {
return NAME;
}
// serialization
private void writeObject(ObjectOutputStream out) throws IOException {
throw TransactionLogger.ROOT_LOGGER.serializationMustBeHandledByTheFactory();
}
private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException {
throw TransactionLogger.ROOT_LOGGER.serializationMustBeHandledByTheFactory();
}
}
}