/// <summary>
/// Starts a new AppDomain to accept workflow execution requests.
/// </summary>
public void Start(Scheduler scheduler, bool interactive)
{
if (interactive)
{
Console.WriteLine("Staring new host in AppDomain: {0}", ID);
}
lastTimeActive = DateTime.Now;
// Create the new WorkflowHost inside the new AppDomain and unwrap the proxy
workflowHost = (WorkflowApplicationHost)appDomain.CreateInstanceAndUnwrap(
typeof(Jhu.Graywulf.Scheduler.WorkflowApplicationHost).Assembly.FullName,
typeof(Jhu.Graywulf.Scheduler.WorkflowApplicationHost).FullName);
workflowHost.ContextGuid = contextGuid;
// Now create a reference to the event handler and cache it in
// workflowEventHandler. This is necessary to keep the delegate alive because
// workflowHost is a proxy class and events are marshaled accross AppDomain
// boundaries.
workflowEventHandler = new EventHandler <HostEventArgs>(workflowHost_WorkflowEvent);
workflowHost.WorkflowEvent += workflowEventHandler;
// Start the new workflow host inside the new AppDomain
workflowHost.Start(scheduler, interactive);
}
private void InitializeMembers()
{
this.contextGuid = Guid.Empty;
this.lastTimeActive = DateTime.MinValue;
this.appDomain = null;
this.workflowHost = null;
this.WorkflowEvent = null;
this.workflowEventHandler = null;
}
/// <summary>
/// Drain-stops the workflows hosted inside the app domain
/// and unloads the AppDomain itself.
/// </summary>
public void Stop(TimeSpan timeout, bool interactive)
{
if (interactive)
{
Console.WriteLine("Stopping AppDomain: {0}", ID);
}
workflowHost.Stop(timeout);
workflowHost = null;
// TODO: implement this using the AppDomainManager
//AppDomain.Unload(appDomain);
}
private void InitializeMembers()
{
this.contextGuid = Guid.Empty;
this.lastTimeActive = DateTime.MinValue;
this.appDomain = null;
this.workflowHost = null;
this.WorkflowEvent = null;
this.workflowEventHandler = null;
}
/// <summary>
/// Drain-stops the workflows hosted inside the app domain
/// and unloads the AppDomain itself.
/// </summary>
public void Stop(TimeSpan timeout, bool interactive)
{
if (interactive)
{
Console.WriteLine("Stopping AppDomain: {0}", ID);
}
workflowHost.Stop(timeout);
workflowHost = null;
// TODO: implement this using the AppDomainManager
//AppDomain.Unload(appDomain);
}
/// <summary>
/// Starts a new AppDomain to accept workflow execution requests.
/// </summary>
public void Start(Scheduler scheduler, bool interactive)
{
if (interactive)
{
Console.WriteLine("Staring new host in AppDomain: {0}", ID);
}
lastTimeActive = DateTime.Now;
// Create the new WorkflowHost inside the new AppDomain and unwrap the proxy
workflowHost = (WorkflowApplicationHost)appDomain.CreateInstanceAndUnwrap(
typeof(Jhu.Graywulf.Scheduler.WorkflowApplicationHost).Assembly.FullName,
typeof(Jhu.Graywulf.Scheduler.WorkflowApplicationHost).FullName);
workflowHost.ContextGuid = contextGuid;
// Now create a reference to the event handler and cache it in
// workflowEventHandler. This is necessary to keep the delegate alive because
// workflowHost is a proxy class and events are marshaled accross AppDomain
// boundaries.
workflowEventHandler = new EventHandler<HostEventArgs>(workflowHost_WorkflowEvent);
workflowHost.WorkflowEvent += workflowEventHandler;
// Start the new workflow host inside the new AppDomain
workflowHost.Start(scheduler, interactive);
}
