@Override
public int getOrCreate(
AbstractTransactionManager txManager,
EntityIdGenerator idGenerator,
PersistenceManager persistence,
String name) {
Response<Integer> response =
master.createPropertyKey(requestContextFactory.newRequestContext(), name);
xaDsm.applyTransactions(response);
return response.response().intValue();
}
private void checkDataConsistencyWithMaster(
URI availableMasterId,
Master master,
NeoStoreXaDataSource nioneoDataSource,
TransactionIdStore transactionIdStore)
throws IOException {
long myLastCommittedTx = transactionIdStore.getLastCommittingTransactionId();
int myMaster = -1;
long myChecksum = 0;
TransactionMetadataCache.TransactionMetadata metadata =
nioneoDataSource
.getDependencyResolver()
.resolveDependency(LogicalTransactionStore.class)
.getMetadataFor(myLastCommittedTx);
myMaster = metadata.getMasterId();
myChecksum = metadata.getChecksum();
HandshakeResult handshake;
try (Response<HandshakeResult> response =
master.handshake(myLastCommittedTx, nioneoDataSource.getStoreId())) {
handshake = response.response();
requestContextFactory.setEpoch(handshake.epoch());
} catch (BranchedDataException e) {
// Rethrow wrapped in a branched data exception on our side, to clarify where the problem
// originates.
throw new BranchedDataException(
"The database stored on this machine has diverged from that "
+ "of the master. This will be automatically resolved.",
e);
} catch (RuntimeException e) {
// Checked exceptions will be wrapped as the cause if this was a serialized
// server-side exception
if (e.getCause() instanceof MissingLogDataException) {
/*
* This means the master was unable to find a log entry for the txid we just asked. This
* probably means the thing we asked for is too old or too new. Anyway, since it doesn't
* have the tx it is better if we just throw our store away and ask for a new copy. Next
* time around it shouldn't have to even pass from here.
*/
throw new StoreOutOfDateException(
"The master is missing the log required to complete the " + "consistency check",
e.getCause());
}
throw e;
}
if (myMaster != -1
&& (myMaster != handshake.txAuthor() || myChecksum != handshake.txChecksum())) {
String msg =
"The cluster contains two logically different versions of the database.. This will be "
+ "automatically resolved. Details: I (machineId:"
+ config.get(ClusterSettings.server_id)
+ ") think machineId for txId ("
+ myLastCommittedTx
+ ") is "
+ myMaster
+ ", but master (machineId:"
+ getServerId(availableMasterId)
+ ") says that it's "
+ handshake;
throw new BranchedDataException(msg);
}
msgLog.logMessage(
"Master id for last committed tx ok with highestTxId="
+ myLastCommittedTx
+ " with masterId="
+ myMaster,
true);
}
