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* Copyright 2012 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 copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU Lesser General Public License, v. 2.1.
* This program is distributed in the hope that it will be useful, but WITHOUT A
* 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,
* v.2.1 along with this distribution; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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*/
package org.infinispan.interceptors.xsite;
import org.infinispan.commands.tx.CommitCommand;
import org.infinispan.commands.tx.PrepareCommand;
import org.infinispan.context.impl.TxInvocationContext;
import org.infinispan.remoting.transport.BackupResponse;
/**
* Handles x-site data backups for pessimistic transactional caches.
*
* @author Mircea Markus
* @since 5.2
*/
public class PessimisticBackupInterceptor extends BaseBackupInterceptor {
@Override
public Object visitPrepareCommand(TxInvocationContext ctx, PrepareCommand command) throws Throwable {
//if this is an "empty" tx no point replicating it to other clusters
if (!shouldInvokeRemoteTxCommand(ctx))
return super.visitPrepareCommand(ctx, command);
boolean isTxFromRemoteSite = isTxFromRemoteSite( command.getGlobalTransaction() );
if (isTxFromRemoteSite) {
return invokeNextInterceptor(ctx, command);
}
BackupResponse backupResponse = backupSender.backupPrepare(command);
Object result = invokeNextInterceptor(ctx, command);
backupSender.processResponses(backupResponse, command, ctx.getTransaction());
return result;
}
@Override
public Object visitCommitCommand(TxInvocationContext ctx, CommitCommand command) throws Throwable {
//for pessimistic transaction we don't do a 2PC (as we already own the remote lock) but just
//a 1PC
throw new IllegalStateException("This should never happen!");
}
}