static void OnWorkflowCompleted(object sender, WorkflowCompletedEventArgs e)
{
ThreadMonitor.WriteToConsole(Thread.CurrentThread, "Host", "Host: Processed WorkflowCompleted Event");
waitHandle.Set();
Console.WriteLine("\n--- Workflow Done ---\n");
}
protected override void Initialize(IServiceProvider provider)
{
ThreadMonitor.WriteToConsole(Thread.CurrentThread, "WaitForMessageActivity", "WaitForMessageActivity: Processed Initialization");
WorkflowQueuingService queuingService = (WorkflowQueuingService)provider.GetService(typeof(WorkflowQueuingService));
this.workflowQueue = queuingService.CreateWorkflowQueue("WaitForMessageActivityQueue", false);
this.workflowQueue.QueueItemAvailable += this.HandleExternalEvent;
}
private void HandleExternalEvent(Object sender, QueueEventArgs args)
{
ThreadMonitor.WriteToConsole(Thread.CurrentThread, "WaitForMessageActivity", "WaitForMessageActivity: Processed External Event");
object data = this.workflowQueue.Dequeue();
ActivityExecutionContext context = sender as ActivityExecutionContext;
context.CloseActivity();
}
static void OnWorkflowIdled(object sender, WorkflowEventArgs e)
{
if (workflowRuntime.GetService <ManualWorkflowSchedulerService>() != null)
{
// Set a system timer to reload this workflow when its next timer expires
SetReloadWorkflowTimer();
}
else
{
readyHandle.Set();
}
ThreadMonitor.WriteToConsole(Thread.CurrentThread, "Host", "Host: Processed WorkflowIdle Event");
Console.WriteLine("\n--- Workflow Idle ---\n");
}
protected override ActivityExecutionStatus Execute(ActivityExecutionContext context)
{
ThreadMonitor.WriteToConsole(Thread.CurrentThread, "WaitForMessageActivity", "WaitForMessageActivity: Processed Waiting For External Event");
return(ActivityExecutionStatus.Executing);
}
private void OnCodeActivity3ExecuteCode(object sender, EventArgs e)
{
ThreadMonitor.WriteToConsole(Thread.CurrentThread, "ThreadingWorkflow", "CodeActivity3: Processed ExecuteCode Event");
}
public ThreadingWorkflow()
{
InitializeComponent();
ThreadMonitor.WriteToConsole(Thread.CurrentThread, "ThreadingWorkflow", "ThreadingWorkflow: Processed Constructor");
}
static void Main(string[] args)
{
if (args.Length < 2)
{
Console.WriteLine("Usage WorkflowThreading.exe [Single | Multi] [Delay | WaitForMessage]");
return;
}
if (!args[0].Equals("Single", StringComparison.OrdinalIgnoreCase) && !args[0].Equals("Multi", StringComparison.OrdinalIgnoreCase))
{
Console.WriteLine("Specify Single or Multi as a first command line parameter");
return;
}
if (!args[1].Equals("Delay", StringComparison.OrdinalIgnoreCase) && !args[1].Equals("WaitForMessage", StringComparison.OrdinalIgnoreCase))
{
Console.WriteLine("Specify Delay or WaitForMessage as a second command line parameter");
return;
}
ThreadMonitor.Enlist(Thread.CurrentThread, "Host");
Console.ForegroundColor = ConsoleColor.White;
// Start the engine
using (workflowRuntime = new WorkflowRuntime())
{
ManualWorkflowSchedulerService scheduler = null;
if (args[0].ToString().Equals("Single", StringComparison.OrdinalIgnoreCase))
{
scheduler = new ManualWorkflowSchedulerService();
workflowRuntime.AddService(scheduler);
}
workflowRuntime.StartRuntime();
// Set up the workflow runtime event handlers
workflowRuntime.WorkflowCompleted += OnWorkflowCompleted;
workflowRuntime.WorkflowTerminated += OnWorkflowTerminated;
workflowRuntime.WorkflowIdled += OnWorkflowIdled;
workflowRuntime.WorkflowCreated += OnWorkflowCreated;
// Load the workflow type
Type type = typeof(ThreadingWorkflow);
Dictionary <string, object> workflowParameters = new Dictionary <string, object>();
workflowParameters.Add("BranchFlag", args[1]);
Console.WriteLine("\n--- Before Starting Workflow ---\n");
// Create an instance of the workflow
workflowInstance = workflowRuntime.CreateWorkflow(type, workflowParameters);
workflowInstance.Start();
Console.WriteLine("\n--- After Starting Workflow ---\n");
if (scheduler != null)
{
scheduler.RunWorkflow(workflowInstance.InstanceId);
}
readyHandle.WaitOne();
if (args[1].Equals("WaitForMessage", StringComparison.OrdinalIgnoreCase))
{
// Send message to WaitForMessageActivity's queue
workflowInstance.EnqueueItem("WaitForMessageActivityQueue", "Hello", null, null);
}
if (scheduler != null)
{
scheduler.RunWorkflow(workflowInstance.InstanceId);
}
waitHandle.WaitOne();
workflowRuntime.StopRuntime();
}
}
static void OnWorkflowCreated(object sender, WorkflowEventArgs e)
{
ThreadMonitor.WriteToConsole(Thread.CurrentThread, "Host", "Host: Processed WorkflowCreated Event");
}
