@Override
public Object visitPrepareCommand(TxInvocationContext ctx, PrepareCommand command)
throws Throwable {
wrapEntriesForPrepare(ctx, command);
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, null);
return retval;
}
@Override
public Object visitPrepareCommand(TxInvocationContext ctx, PrepareCommand command)
throws Throwable {
Object retVal = invokeNextInterceptor(ctx, command);
boolean sync = isSynchronous(ctx);
if (shouldInvokeRemoteTxCommand(ctx)) {
int newCacheViewId = -1;
stateTransferLock.waitForStateTransferToEnd(ctx, command, newCacheViewId);
if (command.isOnePhaseCommit())
flushL1Caches(ctx); // if we are one-phase, don't block on this future.
Collection<Address> recipients = dm.getAffectedNodes(ctx.getAffectedKeys());
prepareOnAffectedNodes(ctx, command, recipients, sync);
((LocalTxInvocationContext) ctx).remoteLocksAcquired(recipients);
} else if (isL1CacheEnabled
&& command.isOnePhaseCommit()
&& !ctx.isOriginLocal()
&& !ctx.getLockedKeys().isEmpty()) {
// We fall into this block if we are a remote node, happen to be the primary data owner and
// have locked keys.
// it is still our responsibility to invalidate L1 caches in the cluster.
flushL1Caches(ctx);
}
return retVal;
}
@Override
public Object visitPrepareCommand(TxInvocationContext ctx, PrepareCommand command)
throws Throwable {
GMUPrepareCommand spc = convert(command, GMUPrepareCommand.class);
if (ctx.isOriginLocal()) {
spc.setVersion(ctx.getTransactionVersion());
spc.setReadSet(ctx.getReadSet());
} else {
ctx.setTransactionVersion(spc.getPrepareVersion());
}
wrapEntriesForPrepare(ctx, command);
performValidation(ctx, spc);
Object retVal = invokeNextInterceptor(ctx, command);
if (ctx.isOriginLocal() && command.getModifications().length > 0) {
EntryVersion commitVersion =
calculateCommitVersion(
ctx.getTransactionVersion(),
versionGenerator,
cll.getWriteOwners(ctx.getCacheTransaction()));
ctx.setTransactionVersion(commitVersion);
} else {
retVal = ctx.getTransactionVersion();
}
if (command.isOnePhaseCommit()) {
commitContextEntries.commitContextEntries(ctx);
}
return retVal;
}
@Override
public Object visitPrepareCommand(TxInvocationContext ctx, PrepareCommand command)
throws Throwable {
if (isStoreEnabled()) {
if (getLog().isTraceEnabled())
getLog().trace("Transactional so don't put stuff in the cache store yet.");
prepareCacheLoader(ctx, command.getGlobalTransaction(), ctx, command.isOnePhaseCommit());
}
return invokeNextInterceptor(ctx, command);
}
@Override
public Object visitPrepareCommand(TxInvocationContext ctx, PrepareCommand command)
throws Throwable {
boolean isTransactional = isTransactional();
if (isTransactional) {
// Sanity check -- if the remote tx doesn't have modifications, it never should have been
// propagated!
if (!command.hasModifications()) {
throw new IllegalStateException("TxInvocationContext has no modifications!");
}
replayModificationsInTransaction(command, command.isOnePhaseCommit());
} else {
replayModifications(command);
}
return null;
}
/**
* total order condition: only commits when it is remote context and the prepare has the flag 1PC
* set
*
* @param command the prepare command
* @param ctx the invocation context
* @return true if the modification should be committed, false otherwise
*/
protected boolean shouldCommitDuringPrepare(PrepareCommand command, TxInvocationContext ctx) {
boolean isTotalOrder = cacheConfiguration.transaction().transactionProtocol().isTotalOrder();
return isTotalOrder
? command.isOnePhaseCommit() && (!ctx.isOriginLocal() || !command.hasModifications())
: command.isOnePhaseCommit();
}