internal OletxTransaction PSPEPromote(InternalTransaction tx)
{
TransactionState state = tx.State;
base.CommonEnterState(tx);
OletxTransaction oletxTransactionFromTransmitterPropigationToken = null;
try
{
byte[] propagationToken = tx.promoter.Promote();
if (propagationToken == null)
{
throw TransactionException.CreateInvalidOperationException(System.Transactions.SR.GetString("TraceSourceLtm"), System.Transactions.SR.GetString("PromotedReturnedInvalidValue"), null);
}
try
{
oletxTransactionFromTransmitterPropigationToken = TransactionInterop.GetOletxTransactionFromTransmitterPropigationToken(propagationToken);
}
catch (ArgumentException exception)
{
throw TransactionException.CreateInvalidOperationException(System.Transactions.SR.GetString("TraceSourceLtm"), System.Transactions.SR.GetString("PromotedReturnedInvalidValue"), exception);
}
if (TransactionManager.FindPromotedTransaction(oletxTransactionFromTransmitterPropigationToken.Identifier) != null)
{
oletxTransactionFromTransmitterPropigationToken.Dispose();
throw TransactionException.CreateInvalidOperationException(System.Transactions.SR.GetString("TraceSourceLtm"), System.Transactions.SR.GetString("PromotedTransactionExists"), null);
}
}
finally
{
state.CommonEnterState(tx);
}
return(oletxTransactionFromTransmitterPropigationToken);
}
public static Transaction GetTransactionFromTransmitterPropagationToken(
byte[] propagationToken
)
{
if (!TransactionManager._platformValidated)
{
TransactionManager.ValidatePlatform();
}
Transaction returnValue = null;
if (null == propagationToken)
{
throw new ArgumentNullException("propagationToken");
}
if (propagationToken.Length < 24)
{
throw new ArgumentException(SR.GetString(SR.InvalidArgument), "propagationToken");
}
if (DiagnosticTrace.Verbose)
{
MethodEnteredTraceRecord.Trace(SR.GetString(SR.TraceSourceOletx),
"TransactionInterop.GetTransactionFromTransmitterPropagationToken"
);
}
// Extract the transaction guid from the propagation token to see if we already have a
// transaction object for the transaction.
byte[] guidByteArray = new byte[16];
for (int i = 0; i < guidByteArray.Length; i++)
{
// In a propagation token, the transaction guid is preceeded by two version DWORDs.
guidByteArray[i] = propagationToken[i + 8];
}
Guid txId = new Guid(guidByteArray);
// First check to see if there is a promoted LTM transaction with the same ID. If there
// is, just return that.
Transaction tx = TransactionManager.FindPromotedTransaction(txId);
if (null != tx)
{
if (DiagnosticTrace.Verbose)
{
MethodExitedTraceRecord.Trace(SR.GetString(SR.TraceSourceOletx),
"TransactionInterop.GetTransactionFromTransmitterPropagationToken"
);
}
return(tx);
}
OletxTransaction oleTx = TransactionInterop.GetOletxTransactionFromTransmitterPropigationToken(propagationToken);
// If a transaction is found then FindOrCreate will Dispose the oletx
// created.
returnValue = TransactionManager.FindOrCreatePromotedTransaction(txId, oleTx);
if (DiagnosticTrace.Verbose)
{
MethodExitedTraceRecord.Trace(SR.GetString(SR.TraceSourceOletx),
"TransactionInterop.GetTransactionFromTransmitterPropagationToken"
);
}
return(returnValue);
}