/*
* Copyright 2011 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.interceptors;
import org.infinispan.commands.tx.CommitCommand;
import org.infinispan.commands.tx.PrepareCommand;
import org.infinispan.commands.tx.VersionedCommitCommand;
import org.infinispan.commands.tx.VersionedPrepareCommand;
import org.infinispan.commands.write.WriteCommand;
import org.infinispan.container.entries.CacheEntry;
import org.infinispan.container.versioning.EntryVersion;
import org.infinispan.container.versioning.EntryVersionsMap;
import org.infinispan.container.versioning.VersionGenerator;
import org.infinispan.context.InvocationContext;
import org.infinispan.context.impl.TxInvocationContext;
import org.infinispan.factories.annotations.Inject;
import org.infinispan.transaction.LocalTransaction;
import org.infinispan.util.logging.Log;
import org.infinispan.util.logging.LogFactory;
/**
* Interceptor in charge with wrapping entries and add them in caller's context.
*
* @author Mircea Markus
* @since 5.1
*/
public class VersionedEntryWrappingInterceptor extends EntryWrappingInterceptor {
private VersionGenerator versionGenerator;
private static final Log log = LogFactory.getLog(VersionedEntryWrappingInterceptor.class);
@Override
protected Log getLog() {
return log;
}
@Inject
public void initialize(VersionGenerator versionGenerator) {
this.versionGenerator = versionGenerator;
}
@Override
public Object visitPrepareCommand(TxInvocationContext ctx, PrepareCommand command) throws Throwable {
if (!ctx.isOriginLocal() || command.isReplayEntryWrapping()) {
for (WriteCommand c : command.getModifications()) c.acceptVisitor(ctx, entryWrappingVisitor);
}
EntryVersionsMap newVersionData= null;
if (ctx.isOriginLocal() && !((LocalTransaction)ctx.getCacheTransaction()).isFromStateTransfer()) newVersionData = cdl.createNewVersionsAndCheckForWriteSkews(versionGenerator, ctx, (VersionedPrepareCommand) command);
Object retval = invokeNextInterceptor(ctx, command);
if (!ctx.isOriginLocal()) newVersionData = cdl.createNewVersionsAndCheckForWriteSkews(versionGenerator, ctx, (VersionedPrepareCommand) command);
if (command.isOnePhaseCommit()) ctx.getCacheTransaction().setUpdatedEntryVersions(((VersionedPrepareCommand) command).getVersionsSeen());
if (newVersionData != null) retval = newVersionData;
if (command.isOnePhaseCommit()) commitContextEntries(ctx, false, isFromStateTransfer(ctx));
return retval;
}
@Override
public Object visitCommitCommand(TxInvocationContext ctx, CommitCommand command) throws Throwable {
try {
if (ctx.isOriginLocal())
((VersionedCommitCommand) command).setUpdatedVersions(ctx.getCacheTransaction().getUpdatedEntryVersions());
return invokeNextInterceptor(ctx, command);
} finally {
if (!ctx.isOriginLocal())
ctx.getCacheTransaction().setUpdatedEntryVersions(((VersionedCommitCommand) command).getUpdatedVersions());
commitContextEntries(ctx, false, isFromStateTransfer(ctx));
}
}
@Override
protected void commitContextEntry(CacheEntry entry, InvocationContext ctx, boolean skipOwnershipCheck) {
if (ctx.isInTxScope() && !isFromStateTransfer(ctx)) {
EntryVersion version = ((TxInvocationContext) ctx).getCacheTransaction().getUpdatedEntryVersions().get(entry.getKey());
cdl.commitEntry(entry, version, skipOwnershipCheck, ctx);
} else {
// This could be a state transfer call!
cdl.commitEntry(entry, entry.getVersion(), skipOwnershipCheck, ctx);
}
}
}