/*
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* Copyright 2000 - 2008, Red Hat Middleware LLC, 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.infinispan.interceptors;
import org.infinispan.commands.LockControlCommand;
import org.infinispan.commands.VisitableCommand;
import org.infinispan.commands.tx.CommitCommand;
import org.infinispan.commands.tx.PrepareCommand;
import org.infinispan.commands.tx.RollbackCommand;
import org.infinispan.context.InvocationContext;
import org.infinispan.context.impl.TxInvocationContext;
import org.infinispan.interceptors.base.CommandInterceptor;
/**
* Always at the end of the chain, directly in front of the cache. Simply calls into the cache using reflection. If the
* call resulted in a modification, add the Modification to the end of the modification list keyed by the current
* transaction.
*
* @author Bela Ban
* @since 4.0
*/
public class CallInterceptor extends CommandInterceptor {
@Override
public Object visitPrepareCommand(TxInvocationContext ctx, PrepareCommand command) throws Throwable {
if (trace) log.trace("Suppressing invocation of method handlePrepareCommand.");
return null;
}
@Override
public Object visitCommitCommand(TxInvocationContext ctx, CommitCommand command) throws Throwable {
if (trace) log.trace("Suppressing invocation of method handleCommitCommand.");
return null;
}
@Override
public Object visitRollbackCommand(TxInvocationContext ctx, RollbackCommand command) throws Throwable {
if (trace) log.trace("Suppressing invocation of method handleRollbackCommand.");
return null;
}
@Override
public Object visitLockControlCommand(InvocationContext ctx, LockControlCommand c) throws Throwable {
if (trace) log.trace("Suppressing invocation of method handleLockControlCommand.");
return null;
}
@Override
final public Object handleDefault(InvocationContext ctx, VisitableCommand command) throws Throwable {
if (trace) log.trace("Executing command: " + command + ".");
Object retval;
try {
retval = command.perform(ctx);
}
catch (Throwable t) {
if (ctx.isInTxScope()) {
TxInvocationContext txContext = (TxInvocationContext) ctx;
if (txContext.isValidRunningTx()) {
txContext.getRunningTransaction().setRollbackOnly();
}
}
throw t;
}
return retval;
}
}