/// <summary>
/// This method removes all of the non-acitivity traces, and then orders the activity traces so they will match
/// more closely the expected traces. This is required for complex parallel traces.
/// </summary>
public void OrderTraces()
{
List <ActivityTrace> traceSteps = new List <ActivityTrace>();
List <UserTrace> userTraces = new List <UserTrace>();
// Find the starting node
lock (this.Steps)
{
foreach (IActualTraceStep ts in this.Steps)
{
if (ts is ActivityTrace)
{
traceSteps.Add(ts as ActivityTrace);
}
else if (ts is UserTrace)
{
userTraces.Add(ts as UserTrace);
}
else
{
//Log.TraceInternal("[ActualTrace]ParallelValidation removing trace " + ts.ToString());
}
}
}
Dictionary <string, ATNode> sortedSteps = new Dictionary <string, ATNode>();
ATNode rootNode = null;
this.Steps.Clear();
// do this until we have completely constructed the tree, in case traces get written out in
// an order we arent expecting, loop until either we cant make any more changes, or until
// all the traces have been ordered.
bool changed;
while (traceSteps.Count > 0)
{
changed = false;
for (int x = 0; x < traceSteps.Count; x++)
{
ActivityTrace at = traceSteps[x];
ATNode parentnode;
// If a new activity was scheduled
if (at.IsScheduled)
{
// When activityID is null, this is the root activity.
if (at.ActivityId == null)
{
rootNode = new ATNode()
{
trace = at,
};
// add root node to the tree using its' activity id and instanceid (for when activities get
// instantiated multiple times, like with parallelforeach
sortedSteps[1 + ":" + 1] = rootNode;
traceSteps.RemoveAt(x--);
changed = true;
}
// otherwise, if parent has already been found, add this node
else if (sortedSteps.TryGetValue(at.ActivityId + ":" + at.ActivityInstanceId, out parentnode))
{
ATNode newnode = new ATNode()
{
trace = at,
parent = parentnode
};
// add the node to its parent.
sortedSteps[at.ChildActivityId + ":" + at.ChildActivityInstanceId] = newnode;
parentnode.children.Add(newnode);
traceSteps.RemoveAt(x--);
changed = true;
}
}
else
{
if (sortedSteps.TryGetValue(at.ActivityId + ":" + at.ActivityInstanceId, out parentnode))
{
ATNode node = new ATNode()
{
trace = at,
parent = parentnode.parent
};
// if root node, just add as the last child, if it ends up being out of order the
// validation logic will correct it.
if (parentnode.parent == null)
{
parentnode.children.Add(node);
}
else
{
// otherwise just setup parent
parentnode.parent.children.Add(node);
}
traceSteps.RemoveAt(x--);
changed = true;
}
}
}
if (rootNode == null)
{
// there is no root node, we cant construct without it
//Log.TraceInternal("[ActualTrace]Parallel tracing couldnt find a root node, using the unordered traces.");
return;
}
if (!changed)
{
// the tree is in a state that we cant reconstruct
//Log.TraceInternal("[ActualTrace]Parallel tracing couldnt find the parent for a node, using the unordered traces");
return;
}
}
foreach (UserTrace ut in userTraces)
{
(sortedSteps[ut.ActivityParent]).userTraces.Add(ut);
}
lock (this.Steps)
{
this.Steps.AddRange(rootNode.GetTraces());
}
}