/// <summary>
/// Handles the receipt of a response message coming from a remote platform by resuming the workflow run and handing the
/// messages to the relevant CAST activity implementation.
/// </summary>
/// <param name="request">The original request message.</param>
/// <param name="response">The response message to process.</param>
public async void Process(TRequest request, TResponse response)
{
using (new DeferredChannelMessageContext())
using (CastService.GetCastContext())
{
try
{
var run = EntityRepository.Get <WorkflowRun>(request.RunId, WorkflowRunPreload);
if (run == null)
{
throw new Exception(string.Format("CAST workflow activity could not resume. Workflow run ({0}) not found.", request.RunId));
}
// let the workflow or caching or whatever, catch up before officially responding to RabbitMQ
if (run.RunStepCounter <= request.RunStep)
{
var state = await WaitForRunStep(run.Id, request.RunStep);
if (state < request.RunStep)
{
throw new Exception(string.Format("CAST workflow activity could not resume. Workflow run ({0}) wasn't in step.", request.RunId));
}
}
var castEvent = new CastActivityResponseEvent <TRequest, TResponse>(request, response);
WorkflowRunner.ResumeWorkflowAsync(run, castEvent);
}
catch (Exception err)
{
EventLog.Application.WriteError("Failed to process CAST response. {0}", err);
}
}
}
