/**
* Reserves files (with the given fileID) in the specified journal, and places a {@link
* FileWrapperJournal} in place to store messages while synchronization is going on.
*
* @param packet
* @throws Exception
* @return if the incoming packet indicates the synchronization is finished then return an
* acknowledgement otherwise return an empty response
*/
private ReplicationResponseMessageV2 handleStartReplicationSynchronization(
final ReplicationStartSyncMessage packet) throws Exception {
ReplicationResponseMessageV2 replicationResponseMessage = new ReplicationResponseMessageV2();
if (activation.isRemoteBackupUpToDate()) {
throw ActiveMQMessageBundle.BUNDLE.replicationBackupUpToDate();
}
synchronized (this) {
if (!started) return replicationResponseMessage;
if (packet.isSynchronizationFinished()) {
finishSynchronization(packet.getNodeID());
replicationResponseMessage.setSynchronizationIsFinishedAcknowledgement(true);
return replicationResponseMessage;
}
switch (packet.getDataType()) {
case LargeMessages:
for (long msgID : packet.getFileIds()) {
createLargeMessage(msgID, true);
}
break;
case JournalBindings:
case JournalMessages:
if (wantedFailBack && !packet.isServerToFailBack()) {
ActiveMQServerLogger.LOGGER.autoFailBackDenied();
}
final JournalContent journalContent =
SyncDataType.getJournalContentType(packet.getDataType());
final Journal journal = journalsHolder.get(journalContent);
if (packet.getNodeID() != null) {
// At the start of replication, we still do not know which is the nodeID that the live
// uses.
// This is the point where the backup gets this information.
backupQuorum.liveIDSet(packet.getNodeID());
}
Map<Long, JournalSyncFile> mapToFill = filesReservedForSync.get(journalContent);
for (Entry<Long, JournalFile> entry :
journal.createFilesForBackupSync(packet.getFileIds()).entrySet()) {
mapToFill.put(entry.getKey(), new JournalSyncFile(entry.getValue()));
}
FileWrapperJournal syncJournal = new FileWrapperJournal(journal);
registerJournal(journalContent.typeByte, syncJournal);
break;
default:
throw ActiveMQMessageBundle.BUNDLE.replicationUnhandledDataType();
}
}
return replicationResponseMessage;
}
public void compareJournalInformation(final JournalLoadInformation[] journalInformation)
throws ActiveMQException {
if (!activation.isRemoteBackupUpToDate()) {
throw ActiveMQMessageBundle.BUNDLE.journalsNotInSync();
}
if (journalLoadInformation == null
|| journalLoadInformation.length != journalInformation.length) {
throw ActiveMQMessageBundle.BUNDLE.replicationTooManyJournals();
}
for (int i = 0; i < journalInformation.length; i++) {
if (!journalInformation[i].equals(journalLoadInformation[i])) {
ActiveMQServerLogger.LOGGER.journalcomparisonMismatch(
journalParametersToString(journalInformation));
throw ActiveMQMessageBundle.BUNDLE.replicationTooManyJournals();
}
}
}