Globals.getLogger().log(Logger.DEBUG,
getPrefix() + " replayTransactionEvent");
}
LocalTransactionEvent localTxnEvent = (LocalTransactionEvent) txnEvent;
// replay to store on commit
LocalTransaction localTxn = localTxnEvent.localTransaction;
int state = localTxn.getState();
TransactionUID tid = localTxn.getTid();
if (localTxnEvent.getSubType() == LocalTransactionEvent.Type1PCommitEvent) {
//one phase commit
//Just replay it now
transactionLogManager.transactionLogReplayer.replayTransactionWork(localTxn
.getTransactionWork(), tid, dstLoadedSet);
} else if (localTxnEvent.getSubType() == LocalTransactionEvent.Type2PPrepareEvent) {
// 2-phase prepare
// check if it is stored
// (this should only be the case if a failure occurred between saving
// in prepared txn store and resetting the transaction log
if (incompleteStored.containsKey(tid)) {
if (Store.getDEBUG()) {
String msg = getPrefix()
+ " found matching txn in prepared store on replay "
+ localTxn;
Globals.getLogger().log(Logger.DEBUG, msg);
}
} else {
addToIncompleteUnstored(localTxn);
}
} else if (localTxnEvent.getSubType() == LocalTransactionEvent.Type2PCompleteEvent) {
// we are completing a transaction
// the transaction could be
// a) unstored (prepare replayed earlier)
// b) stored incomplete (prepare occurred before last checkpoint,
// completion not written to prepared store yet)
// This should therefore be the last entry in log.
// c) stored complete (prepare occurred before last checkpoint,
// and failure occurred after completion stored in prepared store
BaseTransaction existingWork = null;
if (incompleteUnstored.containsKey(tid)) {
// a) unstored (prepare replayed earlier)
existingWork = removeFromIncompleteUnstored(tid);
} else if (incompleteStored.containsKey(tid)) {
// b) stored incomplete (prepare occurred before last checkpoint,
// completion not written to prepared store yet)
existingWork = removeFromIncompleteStored(tid);
updateStoredState(tid, state);
addToCompleteStored(existingWork);
} else if (completeStored.containsKey(tid)) {
// c) stored complete (prepare occurred before last checkpoint,
// and failure occurred after completion stored in prepared store
existingWork = completeStored.get(tid);
}
if (existingWork != null) {
if (state == TransactionState.COMMITTED) {
transactionLogManager.transactionLogReplayer.replayTransactionWork(existingWork
.getTransactionWork(), tid, dstLoadedSet);
}
} else {
logger.log(Logger.ERROR,
"Could not find prepared work for completing two-phase transaction "
+ localTxn.getTid());
}
}
}