/// <summary>
/// Creates an aggregated group enumerator.
/// </summary>
/// <param name="sourceIterator">The source iterator.</param>
/// <param name="resultSetProcessor">The result set processor.</param>
/// <param name="aggregationService">The aggregation service.</param>
/// <param name="exprEvaluatorContext">The expr evaluator context.</param>
/// <returns></returns>
public static IEnumerator<EventBean> Create(
IEnumerator<EventBean> sourceIterator,
ResultSetProcessorAggregateGrouped resultSetProcessor,
AggregationService aggregationService,
ExprEvaluatorContext exprEvaluatorContext)
{
EventBean[] eventsPerStream = new EventBean[1];
while (sourceIterator.MoveNext()) {
eventsPerStream[0] = sourceIterator.Current;
var groupKey = resultSetProcessor.GenerateGroupKeySingle(eventsPerStream, true);
aggregationService.SetCurrentAccess(groupKey, exprEvaluatorContext.AgentInstanceId, null);
if (resultSetProcessor.HasHavingClause) {
var pass = resultSetProcessor.EvaluateHavingClause(eventsPerStream, true, exprEvaluatorContext);
if (!pass) {
continue;
}
}
yield return resultSetProcessor.SelectExprProcessor.Process(
eventsPerStream,
true,
true,
exprEvaluatorContext);
}
}
public ResultSetProcessorAggregateGroupedOutputLastHelper MakeRSAggregateGroupedOutputLastOpt(
AgentInstanceContext agentInstanceContext,
ResultSetProcessorAggregateGrouped processor,
Type[] groupKeyTypes,
DataInputOutputSerde serde)
{
return new ResultSetProcessorAggregateGroupedOutputLastHelperImpl(processor);
}
/// <summary>
/// Ctor.
/// </summary>
/// <param name="sourceIterator">is the parent iterator</param>
/// <param name="resultSetProcessor">for constructing result rows</param>
/// <param name="aggregationService">for pointing to the right aggregation row</param>
/// <param name="exprEvaluatorContext">context for expression evalauation</param>
public ResultSetAggregateGroupedIterator(
IEnumerator <EventBean> sourceIterator,
ResultSetProcessorAggregateGrouped resultSetProcessor,
AggregationService aggregationService,
ExprEvaluatorContext exprEvaluatorContext)
{
_sourceIterator = sourceIterator;
_resultSetProcessor = resultSetProcessor;
_aggregationService = aggregationService;
_eventsPerStream = new EventBean[1];
_exprEvaluatorContext = exprEvaluatorContext;
_currResult = null;
_iterate = true;
}
public ResultSetProcessorAggregateGroupedOutputLastHelperImpl(ResultSetProcessorAggregateGrouped processor)
{
_processor = processor;
_outputLastUnordGroupNew = new LinkedHashMap <object, EventBean>();
_outputLastUnordGroupOld = new LinkedHashMap <object, EventBean>();
}
public ResultSetProcessorAggregateGroupedOutputLastHelper MakeRSAggregateGroupedOutputLastOpt(AgentInstanceContext agentInstanceContext, ResultSetProcessorAggregateGrouped resultSetProcessorAggregateGrouped, ResultSetProcessorAggregateGroupedFactory prototype)
{
return(new ResultSetProcessorAggregateGroupedOutputLastHelperImpl(resultSetProcessorAggregateGrouped));
}
public ResultSetProcessorAggregateGroupedOutputAllHelper MakeRSAggregateGroupedOutputAll(AgentInstanceContext agentInstanceContext, ResultSetProcessorAggregateGrouped processor, ResultSetProcessorAggregateGroupedFactory prototype)
{
return(new ResultSetProcessorAggregateGroupedOutputAllHelperImpl(processor));
}
public ResultSetProcessorAggregateGroupedOutputAllHelperImpl(ResultSetProcessorAggregateGrouped processor)
{
_processor = processor;
}
