private static void TestWorkflowEngine()
{
var workflowRunner = new WorkflowRunner();
workflowRunner.Add(new UploadVideoToCloudStorageActivity());
workflowRunner.Add(new PostToYoutubeActivity());
workflowRunner.Run();
}
internal static int LaunchWorkflowPlayer(
string fileName,
string layoutPath,
PackageConfiguration packageConfiguration,
Dictionary <string, string> propertyAssignments)
{
if (string.IsNullOrEmpty(fileName))
{
Console.WriteLine("No workflow file was specified.");
return(Program.NormalExitCode);
}
var visualizerProvider = Observable.Defer(() =>
{
EditorBootstrapper.EnableVisualStyles();
return(TypeVisualizerLoader.GetVisualizerTypes(packageConfiguration));
});
WorkflowRunner.Run(fileName, propertyAssignments, visualizerProvider, layoutPath);
return(Program.NormalExitCode);
}
/// <summary>
/// The worker should:
/// 1. Load a list of workflows that need to be run.
/// 2. For each workflow, grab a new instance from the workflow repo just in case updates were made while other workflows were running.
/// 3. After each workflow is run, the source file system is asked if it has more files to process (could have been added since the initial file listing was taken).
/// a. If more files ARE available, a flag is set so the delay at the end of the run is skipped and we immediately start back at step 1.
/// 4 If the skipDelay flag hasn't been set, we wait 2 minutes before going back to step 1.
/// </summary>
protected override async Task ExecuteAsync(CancellationToken stoppingToken)
{
_logger.LogInformation("Worker Service Started");
IReadOnlyCollection <Workflow> workflows = Array.Empty <Workflow>();
while (!stoppingToken.IsCancellationRequested)
{
bool skipDelay = false;
try
{
workflows = await _workflowRepository.List();
}
catch (Exception ex)
{
_logger.LogError(ex, "Failed to load workflows.");
}
foreach (var workflowRef in workflows)
{
var workflow = await _workflowRepository.Get(workflowRef.Id);
if (workflow == null)
{
continue;
}
if (!workflow.Enabled)
{
_logger.LogInformation("Workflow {WorkflowName} is disabled and will be skipped.", workflow.Name);
continue;
}
try
{
_logger.LogDebug("Begin running workflow {WorkflowName}.", workflow.Name);
var hasMoreFiles = await _workflowRunner.Run(workflow);
skipDelay = skipDelay || hasMoreFiles;
_logger.LogDebug("Done running workflow {WorkflowName}.", workflow.Name);
}
catch (Exception ex)
{
_logger.LogError(ex, "Failed to run workflow {WorkflowName}.", workflow.Name);
}
}
if (skipDelay)
{
_logger.LogDebug("Skipping delay - there are already more files to process!");
}
else
{
var workerDelay = _coreOptions.CurrentValue.WorkerDelay;
if (workerDelay.TotalMinutes < 5)
{
_logger.LogWarning("WorkerDelay was set to {OriginalWorkerDelay}, which is less than the minimum delay of 5 minutes. The configured value will be ignored.", workerDelay);
workerDelay = TimeSpan.FromMinutes(5);
}
_logger.LogDebug("Waiting {WorkerDelay} until the next run.", _coreOptions.CurrentValue.WorkerDelay);
await Task.Delay(_coreOptions.CurrentValue.WorkerDelay);
}
}
_logger.LogInformation("Worker Service Stopped");
}
