/**
* participant recovery modules may need to perform special processing when the a recovery scan
* has completed. in particular it is only after the first recovery scan has completed they can
* identify whether locally prepared changes are accompanied by a recreated participant and roll
* back changes for those with no such participant.
*/
public void endScan() {
if (isFirst) {
// let the restaurant and theatre state manager know that the BA log records have all been
// scanned
RestaurantManager.getSingletonInstance().recoveryScanCompleted(TX_TYPE_BA);
isFirst = false;
}
}
/**
* called during recovery processing to allow an application to identify a participant id
* belonging to one of its participants and recreate the participant by deserializing it from the
* supplied object input stream. n.b. this is only appropriate in case the original was a
* ParticipantCompletion participant saved using serialization.
*
* @param id the id used when the participant was created
* @param stream a stream from which the application should deserialise the participant if it
* recognises that the id belongs to the module's application
* @return the deserialized ParticipantCompletion participant if the id identifies a restaurant
* participant otherwise null
* @throws Exception if an error occurs deserializing the ParticipantCompletion participant
*/
public BusinessAgreementWithParticipantCompletionParticipant
deserializeParticipantCompletionParticipant(String id, ObjectInputStream stream)
throws Exception {
if (id.startsWith("org.jboss.jbossts.xts-demo:restaurantBA")) {
System.out.println("xts-demo : attempting to deserialize RestaurantParticipantBA " + id);
RestaurantParticipantBA participant = (RestaurantParticipantBA) stream.readObject();
// ensure that the participant has completed any changes to local service state.
System.out.println("xts-demo : deserialized RestaurantParticipantBA " + id);
if (RestaurantManager.getSingletonInstance().recovered(participant.getTxID(), TX_TYPE_BA)) {
participant.confirmCompleted(true);
}
return participant;
} else if (id.startsWith("org.jboss.jbossts.xts-demo:theatreBA")
|| id.startsWith("org.jboss.jbossts.xts-demo:taxiBA")) {
// this should not get called -- xts-demo WS-BA theatre and taxi participants employ the
// CoordinatorCompletion protocol
throw new Exception(
"xts-demo : invalid request to deserialize as WS-BA ParticipantCompletion participant "
+ id);
}
return null;
}
