/*
* JBoss, Home of Professional Open Source
* Copyright 2011 Red Hat Inc. and/or its affiliates and other
* contributors as indicated by the @author tags. All rights reserved.
* See the copyright.txt 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.infinispan.transaction.xa.recovery;
import org.infinispan.marshall.Ids;
import org.infinispan.remoting.transport.Address;
import org.infinispan.transaction.xa.DldGlobalTransaction;
import org.infinispan.transaction.xa.GlobalTransaction;
import org.infinispan.transaction.xa.TransactionFactory;
import org.infinispan.util.Util;
import javax.transaction.xa.Xid;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import java.util.Set;
import static java.util.Collections.emptySet;
/**
* DldGlobalTransaction that also holds xid information, required for recovery.
* The purpose of this class is to avoid the serialization of Xid objects over the wire in the case recovery is not
* enabled.
*
* @author Mircea.Markus@jboss.com
* @since 5.0
*/
public class RecoveryAwareDldGlobalTransaction extends DldGlobalTransaction implements RecoverableTransactionIdentifier {
public RecoveryAwareDldGlobalTransaction() {
}
public RecoveryAwareDldGlobalTransaction(Address addr, boolean remote) {
super(addr, remote);
}
private volatile Xid xid;
private volatile long internalId;
@Override
public Xid getXid() {
return xid;
}
@Override
public void setXid(Xid xid) {
this.xid = xid;
}
@Override
public long getInternalId() {
return internalId;
}
@Override
public void setInternalId(long internalId) {
this.internalId = internalId;
}
public static class Externalizer extends GlobalTransaction.AbstractGlobalTxExternalizer<RecoveryAwareDldGlobalTransaction> {
@Override
public void writeObject(ObjectOutput output, RecoveryAwareDldGlobalTransaction globalTransaction) throws IOException {
super.writeObject(output, globalTransaction);
output.writeLong(globalTransaction.getCoinToss());
if (globalTransaction.locksAtOrigin.isEmpty()) {
output.writeObject(null);
} else {
output.writeObject(globalTransaction.locksAtOrigin);
}
output.writeObject(globalTransaction.xid);
output.writeLong(globalTransaction.internalId);
}
@Override
protected RecoveryAwareDldGlobalTransaction createGlobalTransaction() {
return (RecoveryAwareDldGlobalTransaction) TransactionFactory.TxFactoryEnum.DLD_RECOVERY_XA.newGlobalTransaction();
}
@Override
@SuppressWarnings("unchecked")
public RecoveryAwareDldGlobalTransaction readObject(ObjectInput input) throws IOException, ClassNotFoundException {
RecoveryAwareDldGlobalTransaction globalTransaction = super.readObject(input);
globalTransaction.setCoinToss(input.readLong());
Object locksAtOriginObj = input.readObject();
if (locksAtOriginObj == null) {
globalTransaction.setLocksHeldAtOrigin(emptySet());
} else {
globalTransaction.setLocksHeldAtOrigin((Set<Object>) locksAtOriginObj);
}
Xid xid = (Xid) input.readObject();
globalTransaction.setXid(xid);
globalTransaction.setInternalId(input.readLong());
return globalTransaction;
}
@Override
public Integer getId() {
return Ids.XID_DEADLOCK_DETECTING_GLOBAL_TRANSACTION;
}
@Override
public Set<Class<? extends RecoveryAwareDldGlobalTransaction>> getTypeClasses() {
return Util.<Class<? extends RecoveryAwareDldGlobalTransaction>>asSet(RecoveryAwareDldGlobalTransaction.class);
}
}
@Override
public String toString() {
return getClass().getSimpleName() +
"{xid=" + xid +
", internalId=" + internalId +
"} " + super.toString();
}
}