internal void HandleEvent(ActivityExecutionContext context, SubscriptionEventArg e)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
if (e == null)
{
throw new ArgumentNullException("e");
}
ConditionedActivityGroup activity = context.Activity as ConditionedActivityGroup;
if (activity == null)
{
throw new ArgumentException(SR.GetString("Error_InvalidCAGActivityType"), "activity");
}
if (activity.ExecutionStatus != ActivityExecutionStatus.Closed)
{
EventType subscriptionType = e.SubscriptionType;
ActivityExecutionStatusChangedEventArgs args = (ActivityExecutionStatusChangedEventArgs)e.Args;
bool flag = false;
Dictionary <string, CAGChildStats> childrenStats = activity.CAGState.ChildrenStats;
if (childrenStats.ContainsKey(args.Activity.QualifiedName))
{
if (args.ExecutionStatus != ActivityExecutionStatus.Executing)
{
childrenStats[args.Activity.QualifiedName].State = CAGChildState.Idle;
}
if (args.ExecutionStatus == ActivityExecutionStatus.Closed)
{
CAGChildStats local1 = childrenStats[args.Activity.QualifiedName];
local1.ExecutedCount++;
}
try
{
if (activity.ExecutionStatus == ActivityExecutionStatus.Executing)
{
flag = this.EvaluateConditions(activity, context);
}
}
finally
{
this.CleanupChildAtClosure(context, args.Activity);
}
}
else if (activity.ExecutionStatus == ActivityExecutionStatus.Executing)
{
flag = this.EvaluateConditions(activity, context);
}
if (flag)
{
this.Cleanup(activity, context);
}
else if (activity.CAGState.Completed)
{
if (this.AllChildrenQuiet(activity, context))
{
context.CloseActivity();
}
}
else
{
this.TriggerChildren(activity, context);
}
}
}
internal void HandleEvent(ActivityExecutionContext context, SubscriptionEventArg e)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
if (e == null)
{
throw new ArgumentNullException("e");
}
ConditionedActivityGroup cag = context.Activity as ConditionedActivityGroup;
if (cag == null)
{
throw new ArgumentException(SR.GetString(SR.Error_InvalidCAGActivityType), "activity");
}
// Already done the cleanup from another child's signalling
if (cag.ExecutionStatus == ActivityExecutionStatus.Closed)
{
return;
}
if (e.SubscriptionType != EventType.StatusChange)
{
// split into seperate test to keep FxCop happy (only place SubscriptionType used)
Debug.Assert(false, "This CAG activity handler does not handle this event");
}
ActivityExecutionStatusChangedEventArgs args1 = (ActivityExecutionStatusChangedEventArgs)e.Args;
#if LOG
Log("HandleEvent for " + cag.QualifiedName);
Log("event = " + e.ToString());
Log("activity = " + args1.Activity.QualifiedName);
#endif
bool timeToQuit = false;
// is this event is for an immediate child?
Debug.Assert(cag == args1.Activity.Parent, "Received event for non-child of CAG");
Dictionary <string, CAGChildStats> childrenStats = cag.CAGState.ChildrenStats;
// it is possible that dynamic update has removed the child before we get the closed event
// if that is the case, we don't need to update it's stats since it's not there
if (childrenStats.ContainsKey(args1.Activity.QualifiedName))
{
// update our state about the child
if (args1.ExecutionStatus != ActivityExecutionStatus.Executing)
{
childrenStats[args1.Activity.QualifiedName].State = CAGChildState.Idle;
}
// @undone: this will break if scopes move to "Delayed" closing after Completed.
if (args1.ExecutionStatus == ActivityExecutionStatus.Closed)
{
childrenStats[args1.Activity.QualifiedName].ExecutedCount++;
}
try
{
// re-evaluate the conditions on any status change, as long as the CAG is still executing
if (cag.ExecutionStatus == ActivityExecutionStatus.Executing)
{
timeToQuit = EvaluateConditions(cag, context);
}
}
finally
{
// get rid of the child that just completed
// do this in the finally so that the child is cleaned up,
// even if EvaluateConditions throws beause the CAG is stalled
CleanupChildAtClosure(context, args1.Activity);
}
}
else
{
// child has been removed
// we still need to see if the CAG is done, provided we are still executing
if (cag.ExecutionStatus == ActivityExecutionStatus.Executing)
{
timeToQuit = EvaluateConditions(cag, context);
}
}
// is the CAG just completed?
if (timeToQuit)
{
Cleanup(cag, context);
}
else if (cag.CAGState.Completed)
{
// if the CAG is simply waiting for all children to complete, see if this is the last one
if (AllChildrenQuiet(cag, context))
{
// Mark the CAG as closed, if it hasn't already been marked so.
context.CloseActivity();
}
}
else
{
// CAG not done, so see if any children need to start
TriggerChildren(cag, context);
}
}