public string[][] GetUniqueIndexes(NamedWindowProcessorInstance processorInstance)
{
IList <string[]> unique = null;
if (processorInstance != null)
{
var indexDescriptors = processorInstance.IndexDescriptors;
foreach (var index in indexDescriptors)
{
if (!index.IsUnique)
{
continue;
}
var uniqueKeys = IndexedPropDesc.GetIndexProperties(index.HashIndexedProps);
if (unique == null)
{
unique = new List <string[]>();
}
unique.Add(uniqueKeys);
}
}
if (_optionalUniqueKeyProps != null)
{
if (unique == null)
{
unique = new List <string[]>();
}
unique.Add(_optionalUniqueKeyProps.ToArray());
}
if (unique == null)
{
return(null);
}
return(unique.ToArray());
}
public NamedWindowConsumerView AddConsumer(NamedWindowConsumerDesc consumerDesc, bool isSubselect)
{
var consumerCallback = new ProxyNamedWindowConsumerCallback()
{
ProcGetEnumerator = () => {
NamedWindowProcessorInstance instance = _namedWindowProcessor.GetProcessorInstance(_agentInstanceContext);
if (instance == null)
{
// this can happen on context-partition "output when terminated"
return(GetEnumerator());
}
return(instance.TailViewInstance.GetEnumerator());
},
ProcStopped = (namedWindowConsumerView) => {
RemoveConsumer(namedWindowConsumerView);
}
};
// Construct consumer view, allow a callback to this view to remove the consumer
bool audit = AuditEnum.STREAM.GetAudit(consumerDesc.AgentInstanceContext.StatementContext.Annotations) != null;
var consumerView = new NamedWindowConsumerView(ExprNodeUtility.GetEvaluators(consumerDesc.FilterList), consumerDesc.OptPropertyEvaluator, _tailView.EventType, consumerCallback, consumerDesc.AgentInstanceContext, audit);
// indicate to virtual data window that a consumer was added
VirtualDWView virtualDWView = _rootViewInstance.VirtualDataWindow;
if (virtualDWView != null)
{
virtualDWView.VirtualDataWindow.HandleEvent(
new VirtualDataWindowEventConsumerAdd(_tailView.EventType.Name, consumerView, consumerDesc.AgentInstanceContext.StatementName, consumerDesc.AgentInstanceContext.AgentInstanceId, ExprNodeUtility.ToArray(consumerDesc.FilterList), _agentInstanceContext));
}
// Keep a list of consumer views per statement to accommodate joins and subqueries
var viewsPerStatements = _consumersInContext.Get(consumerDesc.AgentInstanceContext.EpStatementAgentInstanceHandle);
if (viewsPerStatements == null)
{
viewsPerStatements = new CopyOnWriteList <NamedWindowConsumerView>();
// avoid concurrent modification as a thread may currently iterate over consumers as its dispatching
// without the engine lock
var newConsumers = NamedWindowUtil.CreateConsumerMap(_tailView.IsPrioritized);
newConsumers.PutAll(_consumersInContext);
newConsumers.Put(consumerDesc.AgentInstanceContext.EpStatementAgentInstanceHandle, viewsPerStatements);
_consumersInContext = newConsumers;
}
if (isSubselect)
{
viewsPerStatements.Insert(0, consumerView);
}
else
{
viewsPerStatements.Add(consumerView);
}
return(consumerView);
}
public void ClearProcessorInstances()
{
if (_contextName == null)
{
NamedWindowProcessorInstance instance = ProcessorInstanceNoContext;
if (instance != null)
{
instance.Dispose();
}
return;
}
var cpids = ProcessorInstancesAll;
foreach (int cpid in cpids)
{
NamedWindowProcessorInstance instance = GetProcessorInstance(cpid);
if (instance != null)
{
instance.Dispose();
}
return;
}
}
