public override void Run()
{
try
{
StoreWorker.TransactionLog.LogStartTransaction(this);
var writeStore = StoreWorker.WriteStore;
// process preconditions
Logging.LogInfo("UpdateTransaction {0} - processing preconditions", JobId);
try
{
var preconditionSink = new PreconditionSink(writeStore);
var parser = new NTriplesParser();
parser.Parse(new StringReader(_preconditions), preconditionSink, _defaultGraphUri);
if (preconditionSink.FailedPreconditionCount > 0)
{
throw new PreconditionFailedException(preconditionSink.FailedPreconditionCount, preconditionSink.GetFailedPreconditions());
}
}
catch (RdfParserException parserException)
{
throw new BrightstarClientException("Syntax error in preconditions.", parserException);
}
// process deletes
Logging.LogInfo("UpdateTransaction {0} - processing deletes", JobId);
try
{
var delSink = new DeletePatternSink(writeStore);
var parser = new NTriplesParser();
parser.Parse(new StringReader(_deletePatterns), delSink, _defaultGraphUri);
}
catch (RdfParserException parserException)
{
throw new BrightstarClientException("Syntax error in delete patterns.", parserException);
}
try
{
// insert data
Logging.LogInfo("UpdateTransaction {0} - processing inserts", JobId);
var parser = new NTriplesParser();
parser.Parse(new StringReader(_insertData),
new StoreTripleSink(writeStore, JobId, Configuration.TransactionFlushTripleCount),
_defaultGraphUri);
}
catch (RdfParserException parserException)
{
throw new BrightstarClientException("Syntax error in triples to add.", parserException);
}
// commit changes
Logging.LogInfo("UpdateTransaction {0} - committing changes", JobId);
writeStore.Commit(JobId);
// change read store
Logging.LogInfo("UpdateTransaction {0} - invalidating read store", JobId);
StoreWorker.InvalidateReadStore();
// log txn completed
Logging.LogInfo("UpdateTransaction {0} - logging completion", JobId);
StoreWorker.TransactionLog.LogEndSuccessfulTransaction(this);
Logging.LogInfo("UpdateTransaction {0} - done", JobId);
}
catch (PreconditionFailedException ex)
{
StoreWorker.TransactionLog.LogEndFailedTransaction(this);
Logging.LogInfo("Preconditions failed in UpdateTransaction ({0}): Count={1}, Triples={2}", JobId, ex.FailureCount, ex.FailedTriples);
throw;
}
catch (BrightstarClientException ex)
{
StoreWorker.TransactionLog.LogEndFailedTransaction(this);
Logging.LogError(BrightstarEventId.TransactionClientError,
"Client error reported in UpdateTransaction ({0}): {1}", JobId, ex.InnerException.ToString());
throw;
}
catch (Exception ex)
{
StoreWorker.TransactionLog.LogEndFailedTransaction(this);
Logging.LogError(BrightstarEventId.TransactionServerError,
"Unexpected exception caught in UpdateTransaction ({0}): {1}",JobId, ex);
throw;
}
}
public override void Run()
{
try
{
StoreWorker.TransactionLog.LogStartTransaction(this);
var writeStore = StoreWorker.WriteStore;
// process preconditions
Logging.LogInfo("UpdateTransaction {0} - processing preconditions", JobId);
try
{
var preconditionSink = new PreconditionSink(writeStore, PreconditionSink.PreconditionType.ExistsPrecondition);
var parser = new NTriplesParser();
parser.Parse(new StringReader(_preconditions), preconditionSink, _defaultGraphUri);
if (preconditionSink.FailedPreconditionCount > 0)
{
throw new PreconditionFailedException(preconditionSink.FailedPreconditionCount, preconditionSink.GetFailedPreconditions(),
0, String.Empty);
}
}
catch (RdfParserException parserException)
{
throw new BrightstarClientException("Syntax error in preconditions.", parserException);
}
// process deletes
Logging.LogInfo("UpdateTransaction {0} - processing deletes", JobId);
try
{
var delSink = new DeletePatternSink(writeStore);
var parser = new NTriplesParser();
parser.Parse(new StringReader(_deletePatterns), delSink, _defaultGraphUri);
}
catch (RdfParserException parserException)
{
throw new BrightstarClientException("Syntax error in delete patterns.", parserException);
}
try
{
// insert data
Logging.LogInfo("UpdateTransaction {0} - processing inserts", JobId);
var parser = new NTriplesParser();
parser.Parse(new StringReader(_insertData),
new StoreTripleSink(writeStore, JobId, Configuration.TransactionFlushTripleCount),
_defaultGraphUri);
}
catch (RdfParserException parserException)
{
throw new BrightstarClientException("Syntax error in triples to add.", parserException);
}
// commit changes
Logging.LogInfo("UpdateTransaction {0} - committing changes", JobId);
writeStore.Commit(JobId);
// change read store
Logging.LogInfo("UpdateTransaction {0} - invalidating read store", JobId);
StoreWorker.InvalidateReadStore();
// log txn completed
Logging.LogInfo("UpdateTransaction {0} - logging completion", JobId);
StoreWorker.TransactionLog.LogEndSuccessfulTransaction(this);
Logging.LogInfo("UpdateTransaction {0} - done", JobId);
}
catch (PreconditionFailedException ex)
{
StoreWorker.TransactionLog.LogEndFailedTransaction(this);
Logging.LogInfo("Preconditions failed in UpdateTransaction ({0}): Count={1}, Triples={2}", JobId, ex.ExistenceFailureCount, ex.ExistenceFailedTriples);
throw;
}
catch (BrightstarClientException ex)
{
StoreWorker.TransactionLog.LogEndFailedTransaction(this);
Logging.LogError(BrightstarEventId.TransactionClientError,
"Client error reported in UpdateTransaction ({0}): {1}", JobId, ex.InnerException.ToString());
throw;
}
catch (Exception ex)
{
StoreWorker.TransactionLog.LogEndFailedTransaction(this);
Logging.LogError(BrightstarEventId.TransactionServerError,
"Unexpected exception caught in UpdateTransaction ({0}): {1}", JobId, ex);
throw;
}
}