/// <summary>
/// Validate actual trace angainst expected trace.
/// This method validates next same level expected step
/// </summary>
/// <param name="curExpIndex">expected trace step index</param>
/// <param name="actualTrace">actual trace</param>
/// <param name="startIndex">index to start searches from</param>
/// <param name="lastTime">time last step occured at</param>
/// <param name="mustBeAfter">subsequent step must occur after time specified</param>
/// <returns>true if traces match</returns>
private static bool Validate(TraceGroup currentTrace, int curExpIndex, int startIndex, DateTime lastTime, DateTime mustBeAfter)
{
// is this a last step to check?
if (curExpIndex >= currentTrace.Steps.Count)
{
bool match = false;
if (null == currentTrace.parent)
{
//Oracle.LogDebugInfo("End of step list. Verifying completeness");
return(TraceValidator.VerifyAllStepsValidated());
}
else
{
//Oracle.LogDebugInfo("Check next parent step");
if (currentTrace.Async)
{
match = TraceValidator.ValidateNextSibling(currentTrace.parent, currentTrace.indexInParent, currentTrace.startIndex);
}
else
{
if (currentTrace.ordered)
{
match = TraceValidator.ValidateNextSibling(currentTrace.parent, currentTrace.indexInParent, currentTrace.startIndex);
}
else
{
match = TraceValidator.ValidateNextSibling(currentTrace.parent, currentTrace.indexInParent, TraceValidator.GetMaxEndIndex(currentTrace));
}
}
}
return(match);
}
WorkflowTraceStep step = currentTrace.Steps[curExpIndex];
if (step is TraceGroup)
{
// check inner composite step
return(TraceValidator.ValidateFirst((TraceGroup)step, startIndex));
}
else if (step is DelayTrace)
{
mustBeAfter = lastTime.Add(((DelayTrace)step).TimeSpan);
return(TraceValidator.Validate(currentTrace, curExpIndex + 1, startIndex, lastTime, mustBeAfter));
}
else if (step is IActualTraceStep)
{
int[] entryIndexes = TraceValidator.FindAllEntries((IActualTraceStep)step, startIndex, mustBeAfter);
bool match = false;
if (entryIndexes.Length == 0)
{
// step not found
if (!step.Optional)
{
string msg = String.Format("Step '{0}' is not found. Start index {1}", step, startIndex);
//Oracle.LogDebugInfo("Adding error: {0}", msg);
TraceValidator.s_errorList.Add(msg);
}
}
else if (entryIndexes.Length == 1 &&
!step.Optional)
{
// this branch can be commented out
// it's an optimization for the most common case
// only one option
int index = entryIndexes[0];
TraceValidator.MarkAsFound(index, out lastTime);
currentTrace.endIndexes[curExpIndex] = index;
if (currentTrace.ordered && !step.Async)
{
match = TraceValidator.Validate(currentTrace, curExpIndex + 1, index + 1, lastTime, mustBeAfter);
}
else
{
match = TraceValidator.Validate(currentTrace, curExpIndex + 1, startIndex, lastTime, mustBeAfter);
}
}
else
{
// many options. try each choice until succeed
foreach (int index in entryIndexes)
{
TraceValidator.SetRestorePoint();
//this.Dump("After SetRestorePoint");
TraceValidator.MarkAsFound(index, out lastTime);
currentTrace.endIndexes[curExpIndex] = index;
//this.Dump("After mark as found");
if (currentTrace.ordered && !step.Async)
{
match = TraceValidator.Validate(currentTrace, curExpIndex + 1, entryIndexes[0] + 1, lastTime, mustBeAfter);
}
else
{
match = TraceValidator.Validate(currentTrace, curExpIndex + 1, startIndex, lastTime, mustBeAfter);
}
//this.Dump("After searched subsequent steps");
if (match)
{
TraceValidator.Commit();
//this.Dump("After Commit");
break;
}
else
{
TraceValidator.Rollback();
//this.Dump("After Rollback1");
}
}
}
if (!match && step.Optional)
{
//Oracle.LogDebugInfo("Skipping optional step");
match = TraceValidator.Validate(currentTrace, curExpIndex + 1, startIndex, lastTime, mustBeAfter);
}
return(match);
}
else
{
throw new Exception(String.Format(
"Internal validation error. Unknown step type found {0}",
step.GetType().Name));
}
}