public void Handle(PerformOCRJob message)
{
this.Data.RequestId = message.RequestId;
this.Data.JobId = Guid.NewGuid();
this.Data.StartedAt = DateTime.Now;
this.Data.SourceImagePath = message.SourceImagePath;
try
{
using (OCRWorkerService.WorkerServiceClient client = new OCRWorkerService.WorkerServiceClient())
{
client.StartJob(this.Data.JobId, this.Data.SourceImagePath);
}
this.RequestTimeout(TimeSpan.FromSeconds(5), new CheckPendingJobTimeout());
}
catch //handle ony WCF errors instead of all
{
this.Bus.Publish <IOCRJobFailed>(e =>
{
e.JobId = this.Data.JobId;
e.RequestId = this.Data.RequestId;
e.Error = "Cannot connect to the OCR worker.";
});
this.MarkAsComplete();
}
}
public void Timeout(CheckPendingJobTimeout state)
{
try
{
using (OCRWorkerService.WorkerServiceClient client = new OCRWorkerService.WorkerServiceClient())
{
var status = client.GetJobStaus(this.Data.JobId);
switch (status.Status)
{
case OCRWorkerService.Status.Completed:
this.Bus.Publish <IOCRJobCompleted>(e =>
{
e.JobId = this.Data.JobId;
e.RequestId = this.Data.RequestId;
});
this.MarkAsComplete();
break;
case OCRWorkerService.Status.InProgress:
this.Bus.Publish <IOCRJobInProgress>(e =>
{
e.JobId = this.Data.JobId;
e.RequestId = this.Data.RequestId;
});
this.RequestTimeout(TimeSpan.FromSeconds(5), new CheckPendingJobTimeout());
break;
case OCRWorkerService.Status.Unknown:
this.Bus.Publish <IOCRJobFailed>(e =>
{
e.JobId = this.Data.JobId;
e.RequestId = this.Data.RequestId;
e.Error = "Cannot connect to the OCR worker.";
});
this.MarkAsComplete();
break;
case OCRWorkerService.Status.Failed:
this.Bus.Publish <IOCRJobFailed>(e =>
{
e.JobId = this.Data.JobId;
e.RequestId = this.Data.RequestId;
e.Error = status.Error;
});
this.MarkAsComplete();
break;
}
}
this.RequestTimeout(TimeSpan.FromSeconds(5), new CheckPendingJobTimeout());
}
catch //handle ony WCF errors instead of all
{
this.Bus.Publish <IOCRJobFailed>(e =>
{
e.JobId = this.Data.JobId;
e.RequestId = this.Data.RequestId;
e.Error = "Cannot connect to the OCR worker.";
});
this.MarkAsComplete();
}
}
