// We need to intercept PrepareCommand, not InvalidateCommand since the interception takes
// place beforeQuery EntryWrappingInterceptor and the PrepareCommand is multiplexed into
// InvalidateCommands
// as part of EntryWrappingInterceptor
@Override
public Object visitPrepareCommand(TxInvocationContext ctx, PrepareCommand command)
throws Throwable {
if (ctx.isOriginLocal()) {
// We can't wait to commit phase to remove the entry locally (invalidations are processed in
// 1pc
// on remote nodes, so only local case matters here). The problem is that while the entry is
// locked
// reads still can take place and we can read outdated collection afterQuery reading updated
// entity
// owning this collection from DB; when this happens, the version lock on entity cannot
// protect
// us against concurrent modification of the collection. Therefore, we need to remove the
// entry
// here (even without lock!) and let possible update happen in commit phase.
for (WriteCommand wc : command.getModifications()) {
if (wc instanceof InvalidateCommand) {
// ISPN-5605 InvalidateCommand does not correctly implement getAffectedKeys()
for (Object key : ((InvalidateCommand) wc).getKeys()) {
dataContainer.remove(key);
}
} else {
for (Object key : wc.getAffectedKeys()) {
dataContainer.remove(key);
}
}
}
} else {
for (WriteCommand wc : command.getModifications()) {
if (wc instanceof InvalidateCommand) {
// ISPN-5605 InvalidateCommand does not correctly implement getAffectedKeys()
for (Object key : ((InvalidateCommand) wc).getKeys()) {
if (log.isTraceEnabled()) {
log.tracef("Invalidating key %s with lock owner %s", key, ctx.getLockOwner());
}
putFromLoadValidator.beginInvalidatingKey(ctx.getLockOwner(), key);
}
} else {
Set<Object> keys = wc.getAffectedKeys();
if (log.isTraceEnabled()) {
log.tracef("Invalidating keys %s with lock owner %s", keys, ctx.getLockOwner());
}
for (Object key : keys) {
putFromLoadValidator.beginInvalidatingKey(ctx.getLockOwner(), key);
}
}
}
}
return invokeNextInterceptor(ctx, command);
}
@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 cmd)
throws Throwable {
// first pass up chain
Object o = invokeNextInterceptor(ctx, cmd);
if (!ctx.isOriginLocal() || watchLocal) {
markAsVisited(cmd);
for (WriteCommand mod : cmd.getModifications()) markAsVisited(mod);
}
return o;
}
protected final void wrapEntriesForPrepare(TxInvocationContext ctx, PrepareCommand command)
throws Throwable {
if (!ctx.isOriginLocal() || command.isReplayEntryWrapping()) {
for (WriteCommand c : command.getModifications()) {
c.acceptVisitor(ctx, entryWrappingVisitor);
if (c.hasFlag(Flag.PUT_FOR_X_SITE_STATE_TRANSFER)) {
ctx.getCacheTransaction().setStateTransferFlag(Flag.PUT_FOR_X_SITE_STATE_TRANSFER);
}
}
}
}
/**
* In case of a remotely originating transactions we don't have a chance to visit the single
* commands but receive this "batch". We then need the before-apply snapshot of some types to
* route the cleanup commands to the correct indexes. Note we don't need to visit the
* CommitCommand as the indexing context is registered as a transaction sync.
*/
@Override
public Object visitPrepareCommand(TxInvocationContext ctx, PrepareCommand command)
throws Throwable {
final WriteCommand[] writeCommands = command.getModifications();
final Object[] stateBeforePrepare = new Object[writeCommands.length];
for (int i = 0; i < writeCommands.length; i++) {
final WriteCommand writeCommand = writeCommands[i];
if (writeCommand instanceof PutKeyValueCommand) {
InternalCacheEntry internalCacheEntry =
dataContainer.get(((PutKeyValueCommand) writeCommand).getKey());
stateBeforePrepare[i] = internalCacheEntry != null ? internalCacheEntry.getValue() : null;
} else if (writeCommand instanceof PutMapCommand) {
stateBeforePrepare[i] = getPreviousValues(((PutMapCommand) writeCommand).getMap().keySet());
} else if (writeCommand instanceof RemoveCommand) {
InternalCacheEntry internalCacheEntry =
dataContainer.get(((RemoveCommand) writeCommand).getKey());
stateBeforePrepare[i] = internalCacheEntry != null ? internalCacheEntry.getValue() : null;
} else if (writeCommand instanceof ReplaceCommand) {
InternalCacheEntry internalCacheEntry =
dataContainer.get(((ReplaceCommand) writeCommand).getKey());
stateBeforePrepare[i] = internalCacheEntry != null ? internalCacheEntry.getValue() : null;
}
}
final Object toReturn = super.visitPrepareCommand(ctx, command);
if (ctx.isTransactionValid()) {
final TransactionContext transactionContext = makeTransactionalEventContext();
for (int i = 0; i < writeCommands.length; i++) {
final WriteCommand writeCommand = writeCommands[i];
if (writeCommand instanceof PutKeyValueCommand) {
processPutKeyValueCommand(
(PutKeyValueCommand) writeCommand, ctx, stateBeforePrepare[i], transactionContext);
} else if (writeCommand instanceof PutMapCommand) {
processPutMapCommand(
(PutMapCommand) writeCommand,
ctx,
(Map<Object, Object>) stateBeforePrepare[i],
transactionContext);
} else if (writeCommand instanceof RemoveCommand) {
processRemoveCommand(
(RemoveCommand) writeCommand, ctx, stateBeforePrepare[i], transactionContext);
} else if (writeCommand instanceof ReplaceCommand) {
processReplaceCommand(
(ReplaceCommand) writeCommand, ctx, stateBeforePrepare[i], transactionContext);
} else if (writeCommand instanceof ClearCommand) {
processClearCommand((ClearCommand) writeCommand, ctx, transactionContext);
}
}
}
return toReturn;
}
@Override
public Object visitPrepareCommand(TxInvocationContext ctx, PrepareCommand command)
throws Throwable {
Object retval = invokeNextInterceptor(ctx, command);
log.tracef("Entering InvalidationInterceptor's prepare phase. Ctx flags are empty");
// fetch the modifications before the transaction is committed (and thus removed from the
// txTable)
if (shouldInvokeRemoteTxCommand(ctx)) {
if (ctx.getTransaction() == null)
throw new IllegalStateException("We must have an associated transaction");
List<WriteCommand> mods = Arrays.asList(command.getModifications());
broadcastInvalidateForPrepare(mods, ctx);
} else {
log.tracef("Nothing to invalidate - no modifications in the transaction.");
}
return retval;
}
/** @param isRemote true if the command is deserialized and is executed remote. */
@Override
public void initializeReplicableCommand(ReplicableCommand c, boolean isRemote) {
if (c == null) return;
switch (c.getCommandId()) {
case PutKeyValueCommand.COMMAND_ID:
((PutKeyValueCommand) c).init(notifier, configuration);
break;
case ReplaceCommand.COMMAND_ID:
((ReplaceCommand) c).init(notifier, configuration);
break;
case PutMapCommand.COMMAND_ID:
((PutMapCommand) c).init(notifier);
break;
case RemoveCommand.COMMAND_ID:
((RemoveCommand) c).init(notifier, configuration);
break;
case MultipleRpcCommand.COMMAND_ID:
MultipleRpcCommand rc = (MultipleRpcCommand) c;
rc.init(interceptorChain, icf);
if (rc.getCommands() != null)
for (ReplicableCommand nested : rc.getCommands()) {
initializeReplicableCommand(nested, false);
}
break;
case SingleRpcCommand.COMMAND_ID:
SingleRpcCommand src = (SingleRpcCommand) c;
src.init(interceptorChain, icf);
if (src.getCommand() != null) initializeReplicableCommand(src.getCommand(), false);
break;
case InvalidateCommand.COMMAND_ID:
InvalidateCommand ic = (InvalidateCommand) c;
ic.init(notifier, configuration);
break;
case InvalidateL1Command.COMMAND_ID:
InvalidateL1Command ilc = (InvalidateL1Command) c;
ilc.init(configuration, distributionManager, notifier, dataContainer);
break;
case PrepareCommand.COMMAND_ID:
case VersionedPrepareCommand.COMMAND_ID:
case TotalOrderNonVersionedPrepareCommand.COMMAND_ID:
case TotalOrderVersionedPrepareCommand.COMMAND_ID:
PrepareCommand pc = (PrepareCommand) c;
pc.init(interceptorChain, icf, txTable);
pc.initialize(notifier, recoveryManager);
if (pc.getModifications() != null)
for (ReplicableCommand nested : pc.getModifications()) {
initializeReplicableCommand(nested, false);
}
pc.markTransactionAsRemote(isRemote);
if (configuration.deadlockDetection().enabled() && isRemote) {
DldGlobalTransaction transaction = (DldGlobalTransaction) pc.getGlobalTransaction();
transaction.setLocksHeldAtOrigin(pc.getAffectedKeys());
}
break;
case CommitCommand.COMMAND_ID:
case VersionedCommitCommand.COMMAND_ID:
case TotalOrderCommitCommand.COMMAND_ID:
case TotalOrderVersionedCommitCommand.COMMAND_ID:
CommitCommand commitCommand = (CommitCommand) c;
commitCommand.init(interceptorChain, icf, txTable);
commitCommand.markTransactionAsRemote(isRemote);
break;
case RollbackCommand.COMMAND_ID:
case TotalOrderRollbackCommand.COMMAND_ID:
RollbackCommand rollbackCommand = (RollbackCommand) c;
rollbackCommand.init(interceptorChain, icf, txTable);
rollbackCommand.markTransactionAsRemote(isRemote);
break;
case ClearCommand.COMMAND_ID:
ClearCommand cc = (ClearCommand) c;
cc.init(notifier, dataContainer);
break;
case ClusteredGetCommand.COMMAND_ID:
ClusteredGetCommand clusteredGetCommand = (ClusteredGetCommand) c;
clusteredGetCommand.initialize(
icf,
this,
entryFactory,
interceptorChain,
distributionManager,
txTable,
configuration.dataContainer().keyEquivalence());
break;
case LockControlCommand.COMMAND_ID:
LockControlCommand lcc = (LockControlCommand) c;
lcc.init(interceptorChain, icf, txTable);
lcc.markTransactionAsRemote(isRemote);
if (configuration.deadlockDetection().enabled() && isRemote) {
DldGlobalTransaction gtx = (DldGlobalTransaction) lcc.getGlobalTransaction();
RemoteTransaction transaction = txTable.getRemoteTransaction(gtx);
if (transaction != null) {
if (!configuration.clustering().cacheMode().isDistributed()) {
Set<Object> keys = txTable.getLockedKeysForRemoteTransaction(gtx);
GlobalTransaction gtx2 = transaction.getGlobalTransaction();
((DldGlobalTransaction) gtx2).setLocksHeldAtOrigin(keys);
gtx.setLocksHeldAtOrigin(keys);
} else {
GlobalTransaction gtx2 = transaction.getGlobalTransaction();
((DldGlobalTransaction) gtx2).setLocksHeldAtOrigin(gtx.getLocksHeldAtOrigin());
}
}
}
break;
case StateRequestCommand.COMMAND_ID:
((StateRequestCommand) c).init(stateProvider);
break;
case StateResponseCommand.COMMAND_ID:
((StateResponseCommand) c).init(stateConsumer);
break;
case GetInDoubtTransactionsCommand.COMMAND_ID:
GetInDoubtTransactionsCommand gptx = (GetInDoubtTransactionsCommand) c;
gptx.init(recoveryManager);
break;
case TxCompletionNotificationCommand.COMMAND_ID:
TxCompletionNotificationCommand ftx = (TxCompletionNotificationCommand) c;
ftx.init(txTable, lockManager, recoveryManager, stateTransferManager);
break;
case MapCombineCommand.COMMAND_ID:
MapCombineCommand mrc = (MapCombineCommand) c;
mrc.init(mapReduceManager);
break;
case ReduceCommand.COMMAND_ID:
ReduceCommand reduceCommand = (ReduceCommand) c;
reduceCommand.init(mapReduceManager);
break;
case DistributedExecuteCommand.COMMAND_ID:
DistributedExecuteCommand dec = (DistributedExecuteCommand) c;
dec.init(cache);
break;
case GetInDoubtTxInfoCommand.COMMAND_ID:
GetInDoubtTxInfoCommand gidTxInfoCommand = (GetInDoubtTxInfoCommand) c;
gidTxInfoCommand.init(recoveryManager);
break;
case CompleteTransactionCommand.COMMAND_ID:
CompleteTransactionCommand ccc = (CompleteTransactionCommand) c;
ccc.init(recoveryManager);
break;
case ApplyDeltaCommand.COMMAND_ID:
break;
case CreateCacheCommand.COMMAND_ID:
CreateCacheCommand createCacheCommand = (CreateCacheCommand) c;
createCacheCommand.init(cache.getCacheManager());
break;
case XSiteAdminCommand.COMMAND_ID:
XSiteAdminCommand xSiteAdminCommand = (XSiteAdminCommand) c;
xSiteAdminCommand.init(backupSender);
break;
case CancelCommand.COMMAND_ID:
CancelCommand cancelCommand = (CancelCommand) c;
cancelCommand.init(cancellationService);
break;
case XSiteStateTransferControlCommand.COMMAND_ID:
XSiteStateTransferControlCommand xSiteStateTransferControlCommand =
(XSiteStateTransferControlCommand) c;
xSiteStateTransferControlCommand.initialize(
xSiteStateProvider, xSiteStateConsumer, xSiteStateTransferManager);
break;
case XSiteStatePushCommand.COMMAND_ID:
XSiteStatePushCommand xSiteStatePushCommand = (XSiteStatePushCommand) c;
xSiteStatePushCommand.initialize(xSiteStateConsumer);
break;
case EntryRequestCommand.COMMAND_ID:
EntryRequestCommand entryRequestCommand = (EntryRequestCommand) c;
entryRequestCommand.init(entryRetriever);
break;
case EntryResponseCommand.COMMAND_ID:
EntryResponseCommand entryResponseCommand = (EntryResponseCommand) c;
entryResponseCommand.init(entryRetriever);
break;
case GetKeysInGroupCommand.COMMAND_ID:
GetKeysInGroupCommand getKeysInGroupCommand = (GetKeysInGroupCommand) c;
getKeysInGroupCommand.setGroupManager(groupManager);
break;
case ClusteredGetAllCommand.COMMAND_ID:
ClusteredGetAllCommand clusteredGetAllCommand = (ClusteredGetAllCommand) c;
clusteredGetAllCommand.init(
icf,
this,
entryFactory,
interceptorChain,
txTable,
configuration.dataContainer().keyEquivalence());
break;
case StreamRequestCommand.COMMAND_ID:
StreamRequestCommand streamRequestCommand = (StreamRequestCommand) c;
streamRequestCommand.inject(localStreamManager);
break;
case StreamResponseCommand.COMMAND_ID:
StreamResponseCommand streamResponseCommand = (StreamResponseCommand) c;
streamResponseCommand.inject(clusterStreamManager);
break;
case StreamSegmentResponseCommand.COMMAND_ID:
StreamSegmentResponseCommand streamSegmentResponseCommand =
(StreamSegmentResponseCommand) c;
streamSegmentResponseCommand.inject(clusterStreamManager);
break;
case RemoveExpiredCommand.COMMAND_ID:
RemoveExpiredCommand removeExpiredCommand = (RemoveExpiredCommand) c;
removeExpiredCommand.init(notifier, configuration);
break;
default:
ModuleCommandInitializer mci = moduleCommandInitializers.get(c.getCommandId());
if (mci != null) {
mci.initializeReplicableCommand(c, isRemote);
} else {
if (trace) log.tracef("Nothing to initialize for command: %s", c);
}
}
}
/** @param isRemote true if the command is deserialized and is executed remote. */
public void initializeReplicableCommand(ReplicableCommand c, boolean isRemote) {
if (c == null) return;
switch (c.getCommandId()) {
case PutKeyValueCommand.COMMAND_ID:
((PutKeyValueCommand) c).init(notifier);
break;
case PutMapCommand.COMMAND_ID:
((PutMapCommand) c).init(notifier);
break;
case RemoveCommand.COMMAND_ID:
((RemoveCommand) c).init(notifier);
break;
case MultipleRpcCommand.COMMAND_ID:
MultipleRpcCommand rc = (MultipleRpcCommand) c;
rc.init(interceptorChain, icc);
if (rc.getCommands() != null)
for (ReplicableCommand nested : rc.getCommands()) {
initializeReplicableCommand(nested, false);
}
break;
case SingleRpcCommand.COMMAND_ID:
SingleRpcCommand src = (SingleRpcCommand) c;
src.init(interceptorChain, icc);
if (src.getCommand() != null) initializeReplicableCommand(src.getCommand(), false);
break;
case InvalidateCommand.COMMAND_ID:
InvalidateCommand ic = (InvalidateCommand) c;
ic.init(notifier);
break;
case InvalidateL1Command.COMMAND_ID:
InvalidateL1Command ilc = (InvalidateL1Command) c;
ilc.init(configuration, distributionManager, notifier, dataContainer);
break;
case PrepareCommand.COMMAND_ID:
PrepareCommand pc = (PrepareCommand) c;
pc.init(interceptorChain, icc, txTable);
pc.initialize(notifier, recoveryManager);
if (pc.getModifications() != null)
for (ReplicableCommand nested : pc.getModifications()) {
initializeReplicableCommand(nested, false);
}
pc.markTransactionAsRemote(isRemote);
if (configuration.isEnableDeadlockDetection() && isRemote) {
DldGlobalTransaction transaction = (DldGlobalTransaction) pc.getGlobalTransaction();
transaction.setLocksHeldAtOrigin(pc.getAffectedKeys());
}
break;
case CommitCommand.COMMAND_ID:
CommitCommand commitCommand = (CommitCommand) c;
commitCommand.init(interceptorChain, icc, txTable);
commitCommand.markTransactionAsRemote(isRemote);
break;
case RollbackCommand.COMMAND_ID:
RollbackCommand rollbackCommand = (RollbackCommand) c;
rollbackCommand.init(interceptorChain, icc, txTable);
rollbackCommand.markTransactionAsRemote(isRemote);
break;
case ClearCommand.COMMAND_ID:
ClearCommand cc = (ClearCommand) c;
cc.init(notifier);
break;
case ClusteredGetCommand.COMMAND_ID:
ClusteredGetCommand clusteredGetCommand = (ClusteredGetCommand) c;
clusteredGetCommand.initialize(icc, this, interceptorChain, distributionManager);
break;
case LockControlCommand.COMMAND_ID:
LockControlCommand lcc = (LockControlCommand) c;
lcc.init(interceptorChain, icc, txTable);
lcc.markTransactionAsRemote(isRemote);
if (configuration.isEnableDeadlockDetection() && isRemote) {
DldGlobalTransaction gtx = (DldGlobalTransaction) lcc.getGlobalTransaction();
RemoteTransaction transaction = txTable.getRemoteTransaction(gtx);
if (transaction != null) {
if (!configuration.getCacheMode().isDistributed()) {
Set<Object> keys = txTable.getLockedKeysForRemoteTransaction(gtx);
GlobalTransaction gtx2 = transaction.getGlobalTransaction();
((DldGlobalTransaction) gtx2).setLocksHeldAtOrigin(keys);
gtx.setLocksHeldAtOrigin(keys);
} else {
GlobalTransaction gtx2 = transaction.getGlobalTransaction();
((DldGlobalTransaction) gtx2).setLocksHeldAtOrigin(gtx.getLocksHeldAtOrigin());
}
}
}
break;
case RehashControlCommand.COMMAND_ID:
RehashControlCommand rcc = (RehashControlCommand) c;
rcc.init(distributionManager, configuration, dataContainer, this);
break;
case GetInDoubtTransactionsCommand.COMMAND_ID:
GetInDoubtTransactionsCommand gptx = (GetInDoubtTransactionsCommand) c;
gptx.init(recoveryManager);
break;
case RemoveRecoveryInfoCommand.COMMAND_ID:
RemoveRecoveryInfoCommand ftx = (RemoveRecoveryInfoCommand) c;
ftx.init(recoveryManager);
break;
case MapReduceCommand.COMMAND_ID:
MapReduceCommand mrc = (MapReduceCommand) c;
mrc.init(
this,
interceptorChain,
icc,
distributionManager,
cache.getAdvancedCache().getRpcManager().getAddress());
break;
case DistributedExecuteCommand.COMMAND_ID:
DistributedExecuteCommand dec = (DistributedExecuteCommand) c;
dec.init(cache);
break;
case GetInDoubtTxInfoCommand.COMMAND_ID:
GetInDoubtTxInfoCommand gidTxInfoCommand = (GetInDoubtTxInfoCommand) c;
gidTxInfoCommand.init(recoveryManager);
break;
case CompleteTransactionCommand.COMMAND_ID:
CompleteTransactionCommand ccc = (CompleteTransactionCommand) c;
ccc.init(recoveryManager);
break;
default:
ModuleCommandInitializer mci = moduleCommandInitializers.get(c.getCommandId());
if (mci != null) {
mci.initializeReplicableCommand(c, isRemote);
} else {
if (trace) log.tracef("Nothing to initialize for command: %s", c);
}
}
}
private void replayModifications(PrepareCommand command) throws Throwable {
for (WriteCommand c : command.getModifications()) {
c.acceptVisitor(null, this);
}
}