private MetricStatsEngineQueue ReplaceStatsEngineQueue()
{
MetricStatsEngineQueue oldMetricStatsEngineQueue = _metricStatsEngineQueue;
_metricStatsEngineQueue = CreateMetricStatsEngineQueue();
return(oldMetricStatsEngineQueue);
}
public MetricAggregator(IDataTransportService dataTransportService, IMetricBuilder metricBuilder, IMetricNameService metricNameService, IEnumerable <IOutOfBandMetricSource> outOfBandMetricSources, IProcessStatic processStatic, IScheduler scheduler)
: base(dataTransportService, scheduler, processStatic)
{
_metricBuilder = metricBuilder;
_metricNameService = metricNameService;
_outOfBandMetricSources = outOfBandMetricSources;
foreach (var source in outOfBandMetricSources)
{
if (source != null)
{
source.RegisterPublishMetricHandler(Collect);
}
}
_metricStatsEngineQueue = CreateMetricStatsEngineQueue();
}
/// <summary>
/// Replaces the current MetricStatsEngineQueue with a new one and combines all the StatsEngines in the
/// old queue into a single MetricStatsCollection that can serve as the source of aggregated metrics to
/// send to the collector.
/// </summary>
/// <returns></returns>
private MetricStatsCollection GetStatsEngineForHarvest()
{
MetricStatsEngineQueue oldMetricStatsEngineQueue = ReplaceStatsEngineQueue();
return(oldMetricStatsEngineQueue.GetStatsEngineForHarvest());
}