/*
* Copyright 2012 Red Hat, Inc. and/or its affiliates.
*
* 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 library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA
*/
package org.infinispan.transaction;
import org.infinispan.commands.CommandsFactory;
import org.infinispan.commands.remote.recovery.TxCompletionNotificationCommand;
import org.infinispan.configuration.cache.Configuration;
import org.infinispan.configuration.cache.Configurations;
import org.infinispan.interceptors.locking.ClusteringDependentLogic;
import org.infinispan.remoting.rpc.RpcManager;
import org.infinispan.remoting.transport.Address;
import org.infinispan.transaction.xa.CacheTransaction;
import org.infinispan.transaction.xa.GlobalTransaction;
import org.infinispan.util.logging.Log;
import org.infinispan.util.logging.LogFactory;
import java.util.Collection;
/**
* Base class for both Sync and XAResource enlistment adapters.
*
* @author Mircea Markus
* @since 5.1
*/
public abstract class AbstractEnlistmentAdapter {
private static Log log = LogFactory.getLog(AbstractEnlistmentAdapter.class);
private final CommandsFactory commandsFactory;
private final RpcManager rpcManager;
private final TransactionTable txTable;
private final ClusteringDependentLogic clusteringLogic;
private final int hashCode;
private final boolean isSecondPhaseAsync;
private final boolean isPessimisticLocking;
public AbstractEnlistmentAdapter(CacheTransaction cacheTransaction,
CommandsFactory commandsFactory, RpcManager rpcManager,
TransactionTable txTable, ClusteringDependentLogic clusteringLogic,
Configuration configuration) {
this.commandsFactory = commandsFactory;
this.rpcManager = rpcManager;
this.txTable = txTable;
this.clusteringLogic = clusteringLogic;
this.isSecondPhaseAsync = Configurations.isSecondPhaseAsync(configuration);
this.isPessimisticLocking = configuration.transaction().lockingMode() == LockingMode.PESSIMISTIC;
hashCode = preComputeHashCode(cacheTransaction);
}
public AbstractEnlistmentAdapter(CommandsFactory commandsFactory,
RpcManager rpcManager, TransactionTable txTable,
ClusteringDependentLogic clusteringLogic, Configuration configuration) {
this.commandsFactory = commandsFactory;
this.rpcManager = rpcManager;
this.txTable = txTable;
this.clusteringLogic = clusteringLogic;
this.isSecondPhaseAsync = Configurations.isSecondPhaseAsync(configuration);
this.isPessimisticLocking = configuration.transaction().lockingMode() == LockingMode.PESSIMISTIC;
hashCode = 31;
}
protected final void releaseLocksForCompletedTransaction(LocalTransaction localTransaction) {
final GlobalTransaction gtx = localTransaction.getGlobalTransaction();
txTable.removeLocalTransaction(localTransaction);
removeTransactionInfoRemotely(localTransaction, gtx);
}
private void removeTransactionInfoRemotely(LocalTransaction localTransaction, GlobalTransaction gtx) {
if (mayHaveRemoteLocks(localTransaction) && isClustered() && !isSecondPhaseAsync) {
final TxCompletionNotificationCommand command = commandsFactory.buildTxCompletionNotificationCommand(null, gtx);
final Collection<Address> owners = clusteringLogic.getOwners(localTransaction.getAffectedKeys());
Collection<Address> commitNodes = localTransaction.getCommitNodes(owners, rpcManager.getTopologyId(), rpcManager.getMembers());
log.tracef("About to invoke tx completion notification on commitNodes: %s", commitNodes);
rpcManager.invokeRemotely(commitNodes, command, false, true);
}
}
private boolean mayHaveRemoteLocks(LocalTransaction lt) {
return (lt.getRemoteLocksAcquired() != null && !lt.getRemoteLocksAcquired().isEmpty()) ||
(lt.getModifications() != null && !lt.getModifications().isEmpty()) ||
(isPessimisticLocking && lt.getTopologyId() != rpcManager.getTopologyId());
}
/**
* Invoked by TransactionManagers, make sure it's an efficient implementation.
* System.identityHashCode(x) is NOT an efficient implementation.
*/
@Override
public final int hashCode() {
return this.hashCode;
}
private static int preComputeHashCode(final CacheTransaction cacheTx) {
return 31 + cacheTx.hashCode();
}
private boolean isClustered() {
return rpcManager != null;
}
}