public RFProcessingResult Process(RFInstruction i, IRFProcessingContext processingContext)
{
try
{
if (i is RFProcessInstruction)
{
var pi = i as RFProcessInstruction;
if (_processes.ContainsKey(pi.ProcessName))
{
var process = _processes[pi.ProcessName];
return(ProcessInstruction(process, i as RFProcessInstruction, processingContext));
}
else
{
var msg = String.Format("Process {0} referenced by instruction {1} not found in engine configuration.", pi.ProcessName, i);
Log.Error(this, msg);
return(RFProcessingResult.Error(new string[] { msg }, false));
}
}
}
catch (Exception ex)
{
Log.Exception(this, ex, "Exception processing instruction {0}", i);
return(RFProcessingResult.Error(new string[] { ex.Message }, false));
}
return(new RFProcessingResult());
}
private void ProcessInstructionThread(RFWorkQueueItem i)
{
try
{
// To make transaction work we'd have to use a single SQL connection to do all reads and writes
/* using (var ts = new TransactionScope(TransactionScopeOption.Required, new TransactionOptions
* {
* IsolationLevel = System.Transactions.IsolationLevel.ReadCommitted,
* Timeout = TimeSpan.FromSeconds(30)
* }))*/
{
Log.Debug(this, "Started thread to process instruction {0}", i.Item as RFProcessInstruction);
var sink = new RFBufferingSink(); // create thread-local manager to buffer events and instructions, then send them back in bulk
RFProcessingResult result = null;
try
{
result = _context.Engine.Process(i.Item as RFInstruction, _context.GetProcessingContext(i.ProcessingKey, sink, sink, null));
}
catch (Exception ex)
{
Log.Exception(this, ex, "Exception Thread processing queue item ", i);
result = RFProcessingResult.Error(new string[] { ex.Message }, ex is DbException || ex is TimeoutException);
}
// send result and all buffered events/instructions to external event manager (since
// we can't guarantee delivery order with MSMQ)
_eventSink.RaiseEvent(this, new RFProcessingFinishedEvent(i, result, sink.GetItems()), i.ProcessingKey);
//ts.Complete();
}
}
catch (Exception ex)
{
Log.Exception(this, ex, "Exception Thread processing queue item ", i);
}
}
private void ProcessInstructionThread(RFWorkQueueItem i)
{
try
{
Log.Debug(this, "Started thread to process instruction {0}", i.Item as RFProcessInstruction);
var result = _context.Engine.Process(i.Item as RFInstruction, _context.GetProcessingContext(i.ProcessingKey, _instructionSink, _eventSink, this));
_eventSink.RaiseEvent(this, new RFProcessingFinishedEvent(i, result, null), i.ProcessingKey); // we do not store work queue items in-proc
}
catch (Exception ex)
{
Log.Exception(this, ex, "Exception Thread processing queue item ", i);
_eventSink.RaiseEvent(this, new RFProcessingFinishedEvent(i, RFProcessingResult.Error(new string[] { ex.Message }, false), null), i.ProcessingKey);
}
}
