//throws InterruptedException
public void processTpcMessage(TPCMessage msg)
{
String transactionId = msg.getTransactionId();
if (msg is CanCommitMessage)
{
// check if cohort already exists
if (cohorts.ContainsKey(transactionId))
{
Logger.getInstance().log(
"Cohort already exists for tid: " + transactionId,
LOGGING_NAME,
Logger.Level.WARNING);
return;
}
Logger.getInstance().log(
"Creating new cohort with tid " + transactionId + " : " + msg.toString(),
LOGGING_NAME,
Logger.Level.INFO);
// create cohort and start his job
Cohort coh = new CohortImpl();
cohorts[transactionId] = coh;
coh.setTransactionId(transactionId);
coh.setCoordinatorAddress(msg.getSender());
coh.setDatabaseState(DatabaseStateImpl.getInstance());
coh.setConnector(DbConnectorImpl.getInstance());
coh.addEndTransactionListener(this);
coh.processMessage(msg);
}
else if (msg is PreCommitMessage
|| msg is DoCommitMessage
|| msg is AbortMessage)
{
Logger.getInstance().log(
"Dispatching to cohort with tid " + transactionId + " : " + msg.toString(),
LOGGING_NAME,
Logger.Level.INFO);
// check if cohort exists
Cohort cohort = null;
if (cohorts.ContainsKey(transactionId))
{
cohort = cohorts[transactionId];
}
if (cohort == null)
{
Logger.getInstance().log(
"No cohort for tid" + transactionId,
LOGGING_NAME,
Logger.Level.WARNING);
return;
}
cohort.processMessage(msg);
}
else if (msg is YesForCommitMessage
|| msg is NoForCommitMessage
|| msg is AckPreCommitMessage
|| msg is HaveCommittedMessage
|| msg is RBD.TPC.Msg.ErrorMessage)
{
Logger.getInstance().log(
"Dispatching to coordinator with tid " + transactionId + " : " + msg.toString(),
LOGGING_NAME,
Logger.Level.INFO);
// send to COORDINATOR
Coordinator coordinator = null;
if (coordinators.ContainsKey(transactionId))
{
coordinator = coordinators[transactionId];
}
if (coordinator == null)
{
// Logger.getInstance().log(
// "No coordinator for tid" + transactionId,
// LOGGING_NAME,
// Logger.Level.WARNING);
return;
}
coordinator.processMessage(msg);
}
}
/**
* Wyslij wiadomosc do wszystkich wezlow bioracych udzial w transakcji.
* @param message
* @generated "UML to Java (com.ibm.xtools.transform.uml2.java5.internal.UML2JavaTransform)"
*/
public void broadcastMessage(TPCMessage message)
{
this.clearAnswers();
message.TransactionId = this.TransactionId;
TcpSender.getInstance().sendToAllServerNodes(message);
}
public abstract void replyToCoordinator(TPCMessage message);
/**
* <!-- begin-UML-doc -->
* <p>
* Obsluguje odpowiedz wezla na wiadomosc.
* </p>
* <p>
* Jezeli nie jest to ostatni wezel, to koordynator czeka na nastepna wiadomosc.
* </p>
* <p>
* Jezeli jest to ostatni wezel, to koordynator wysyla nastepna wiadomosc do wszystkich wezlow uczestniczacych w
* transakcji oraz zmienia stan.
* </p>
* <!-- end-UML-doc -->
* @param node <p>
* Wezel, ktory odpowiedzial na poprzednia wiadomosc.
* /p>
* @param message Nastepna wiadomosc do wyslania do wszystkich wezlow uczestniczacych w transakcji.
* @param nextState Nastepny stan.
* @generated "UML to Java (com.ibm.xtools.transform.uml2.java5.internal.UML2JavaTransform)"
*/
public void processAnswer(IPEndPoint node, TPCMessage message, CoordinatorState nextState)
{
addAnswer(node);
if(checkAnswers()) {
broadcastMessage(message);
changeState(nextState);
}
}
public override void replyToCoordinator(TPCMessage message)
{
message.setTransactionId(getTransactionId());
TcpSender.getInstance().sendToNode(message, getCoordinatorAddress());
}
