private static EvalFactoryNode RecursiveAddAuditNode(
PatternNodeFactory patternNodeFactory,
EvalFactoryNode parentNode,
bool auditPattern,
bool auditPatternInstance,
EvalFactoryNode evalNode,
EvalAuditInstanceCount instanceCount)
{
var writer = new StringWriter();
evalNode.ToEPL(writer, PatternExpressionPrecedenceEnum.MINIMUM);
var expressionText = writer.ToString();
var filterChildNonQuitting = parentNode != null && parentNode.IsFilterChildNonQuitting;
EvalFactoryNode audit = patternNodeFactory.MakeAuditNode(
auditPattern, auditPatternInstance, expressionText, instanceCount, filterChildNonQuitting);
audit.AddChildNode(evalNode);
IList <EvalFactoryNode> newChildNodes = new List <EvalFactoryNode>();
foreach (var child in evalNode.ChildNodes)
{
newChildNodes.Add(
RecursiveAddAuditNode(
patternNodeFactory, evalNode, auditPattern, auditPatternInstance, child, instanceCount));
}
evalNode.ChildNodes.Clear();
evalNode.AddChildNodes(newChildNodes);
return(audit);
}
private PatternStreamSpecCompiled CompileInternal(
StatementContext context,
ICollection <string> eventTypeReferences,
bool isInsertInto,
ICollection <int> assignedTypeNumberStack,
MatchEventSpec tags,
IEnumerable <string> priorAllTags,
bool isJoin,
bool isContextDeclaration,
bool isOnTrigger)
{
// validate
if ((_suppressSameEventMatches || _discardPartialsOnMatch) &&
(isJoin || isContextDeclaration || isOnTrigger))
{
throw new ExprValidationException(
"Discard-partials and suppress-matches is not supported in a joins, context declaration and on-action");
}
if (tags == null)
{
tags = new MatchEventSpec();
}
var subexpressionIdStack = new ArrayDeque <int>(assignedTypeNumberStack);
var evaluatorContextStmt = new ExprEvaluatorContextStatement(context, false);
var nodeStack = new Stack <EvalFactoryNode>();
// detemine ordered tags
var filterFactoryNodes = EvalNodeUtil.RecursiveGetChildNodes(
_evalFactoryNode, FilterForFilterFactoryNodes.INSTANCE);
var allTagNamesOrdered = new LinkedHashSet <string>();
if (priorAllTags != null)
{
allTagNamesOrdered.AddAll(priorAllTags);
}
foreach (var filterNode in filterFactoryNodes)
{
var factory = (EvalFilterFactoryNode)filterNode;
int tagNumber;
if (factory.EventAsName != null)
{
if (!allTagNamesOrdered.Contains(factory.EventAsName))
{
allTagNamesOrdered.Add(factory.EventAsName);
tagNumber = allTagNamesOrdered.Count - 1;
}
else
{
tagNumber = FindTagNumber(factory.EventAsName, allTagNamesOrdered);
}
factory.EventAsTagNumber = tagNumber;
}
}
RecursiveCompile(
_evalFactoryNode, context, evaluatorContextStmt, eventTypeReferences, isInsertInto, tags,
subexpressionIdStack, nodeStack, allTagNamesOrdered);
var auditPattern = AuditEnum.PATTERN.GetAudit(context.Annotations);
var auditPatternInstance = AuditEnum.PATTERNINSTANCES.GetAudit(context.Annotations);
var compiledEvalFactoryNode = _evalFactoryNode;
if (context.PatternNodeFactory.IsAuditSupported && (auditPattern != null || auditPatternInstance != null))
{
var instanceCount = new EvalAuditInstanceCount();
compiledEvalFactoryNode = RecursiveAddAuditNode(
context.PatternNodeFactory, null, auditPattern != null, auditPatternInstance != null,
_evalFactoryNode, instanceCount);
}
return(new PatternStreamSpecCompiled(
compiledEvalFactoryNode, tags.TaggedEventTypes, tags.ArrayEventTypes, allTagNamesOrdered, ViewSpecs,
OptionalStreamName, Options, _suppressSameEventMatches, _discardPartialsOnMatch));
}
