public IExecutionStep Execute(IFreeformEntity_Msg request)
{
using (ILogMethod method = Log.LogMethod(this.DYN_MODULE_NAME, "ProcessMessage"))
{
try
{
ExecutionStep step = null;
this.ExecutionResult = ExecutionStepResult.None;
ExecutionStepKeyValue pair =
new ExecutionStepKeyValue(request.EntityUniqueKeyString, request.FlowDirection);
string uniqueKey = pair.FullKey;
// current execution step
if (this.CanExecute(pair, request))
{
step = this;
}
// next step is responsible
else if (_nextStep != null &&
_nextStep.CanExecute(pair, request))
{
step = _nextStep as ExecutionStep;
}
// any of the next steps is responsible
else if (_hasNextSteps)
{
if (_nextStepsCached.ContainsKey(uniqueKey))
{
step = _nextStepsCached[uniqueKey];
}
else
{
foreach (var nextStep in this.NextSteps)
{
if (nextStep.CanExecute(pair, request))
{
step = nextStep as ExecutionStep;
_nextStepsCached.Add(uniqueKey, step);
break;
}
}
}
}
// any thing is responsible?
if (step != null)
{
return(step.ExecuteInternal(method, request));
}
}
catch (Exception ex)
{
method.Exception(ex);
}
return(null);
}
}
