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//-----------------------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//-----------------------------------------------------------------------------
namespace System.Activities.Runtime
{
using System;
using System.Runtime;
using System.Reflection;
using System.Runtime.Serialization;
using System.Diagnostics.CodeAnalysis;
[DataContract]
abstract class ActivityExecutionWorkItem : WorkItem
{
bool skipActivityInstanceAbort;
// Used by subclasses in the pooled case
protected ActivityExecutionWorkItem()
{
}
public ActivityExecutionWorkItem(ActivityInstance activityInstance)
: base(activityInstance)
{
}
public override bool IsValid
{
get
{
return this.ActivityInstance.State == ActivityInstanceState.Executing;
}
}
public override ActivityInstance PropertyManagerOwner
{
get
{
return this.ActivityInstance;
}
}
protected override void ClearForReuse()
{
base.ClearForReuse();
this.skipActivityInstanceAbort = false;
}
protected void SetExceptionToPropagateWithoutAbort(Exception exception)
{
this.ExceptionToPropagate = exception;
this.skipActivityInstanceAbort = true;
}
public override void PostProcess(ActivityExecutor executor)
{
if (this.ExceptionToPropagate != null && !skipActivityInstanceAbort)
{
executor.AbortActivityInstance(this.ActivityInstance, this.ExceptionToPropagate);
}
else if (this.ActivityInstance.UpdateState(executor))
{
// NOTE: exceptionToPropagate could be non-null here if this is a Fault work item.
// That means that the next line could potentially overwrite the exception with a
// new exception.
Exception newException = executor.CompleteActivityInstance(this.ActivityInstance);
if (newException != null)
{
this.ExceptionToPropagate = newException;
}
}
}
}
}
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