public void DefaultState()
{
DateTimeOffset dto = new DateTimeOffset(2017, 10, 2, 17, 5, 0, TimeSpan.FromHours(-7));
var aggregationManager = new MetricAggregationManager();
var measurementMetric = new MetricSeries(
aggregationManager,
"Measurement Metric",
null,
new MetricSeriesConfigurationForMeasurement(restrictToUInt32Values: false));
var accumulatorMetric = new MetricSeries(
aggregationManager,
"Accumulator Metric",
null,
new MetricSeriesConfigurationForAccumulator(restrictToUInt32Values: false));
measurementMetric.TrackValue(1);
accumulatorMetric.TrackValue(2);
AggregationPeriodSummary defaultPeriod = aggregationManager.StartOrCycleAggregators(MetricAggregationCycleKind.Default, dto, futureFilter: null);
Assert.IsNotNull(defaultPeriod);
Assert.IsNotNull(defaultPeriod.NonpersistentAggregates);
Assert.IsNotNull(defaultPeriod.PersistentAggregates);
Assert.AreEqual(1, defaultPeriod.NonpersistentAggregates.Count);
Assert.AreEqual("Measurement Metric", (defaultPeriod.NonpersistentAggregates[0]).MetricId);
Assert.AreEqual(1, defaultPeriod.NonpersistentAggregates[0].Data["Count"]);
Assert.AreEqual(1.0, defaultPeriod.NonpersistentAggregates[0].Data["Sum"]);
Assert.AreEqual(1, defaultPeriod.PersistentAggregates.Count);
Assert.AreEqual("Accumulator Metric", defaultPeriod.PersistentAggregates[0].MetricId);
Assert.AreEqual(2.0, defaultPeriod.PersistentAggregates[0].Data["Sum"]);
AggregationPeriodSummary customPeriod = aggregationManager.StartOrCycleAggregators(MetricAggregationCycleKind.Custom, dto, futureFilter: null);
Assert.IsNotNull(customPeriod);
Assert.IsNotNull(customPeriod.NonpersistentAggregates);
Assert.IsNotNull(customPeriod.PersistentAggregates);
Assert.AreEqual(0, customPeriod.NonpersistentAggregates.Count);
Assert.AreEqual(1, customPeriod.PersistentAggregates.Count);
Assert.AreEqual("Accumulator Metric", customPeriod.PersistentAggregates[0].MetricId);
Assert.AreEqual(2.0, customPeriod.PersistentAggregates[0].Data["Sum"]);
AggregationPeriodSummary quickpulsePeriod = aggregationManager.StartOrCycleAggregators(MetricAggregationCycleKind.QuickPulse, dto, futureFilter: null);
Assert.IsNotNull(quickpulsePeriod);
Assert.IsNotNull(quickpulsePeriod.NonpersistentAggregates);
Assert.IsNotNull(quickpulsePeriod.PersistentAggregates);
Assert.AreEqual(0, quickpulsePeriod.NonpersistentAggregates.Count);
Assert.AreEqual(1, quickpulsePeriod.PersistentAggregates.Count);
Assert.AreEqual("Accumulator Metric", quickpulsePeriod.PersistentAggregates[0].MetricId);
Assert.AreEqual(2.0, quickpulsePeriod.PersistentAggregates[0].Data["Sum"]);
}
public void FetchAndTrackMetrics()
{
// We know that GetNextCycleTargetTime(..) tries to snap cycles to 1 second into each minute.
// But the timer wakes us up *approxumately* at that time. If we are within a few seconds of that time, we will snap exactly to that time.
// If we are further away, we will just snap to a whole second. That way downstream systems do not need to worry about sub-second resolution.
DateTimeOffset now = DateTimeOffset.Now;
if (new DateTimeOffset(now.Year, now.Month, now.Day, now.Hour, now.Minute, 0, now.Offset) <= now &&
new DateTimeOffset(now.Year, now.Month, now.Day, now.Hour, now.Minute, 4, now.Offset) >= now)
{
now = new DateTimeOffset(now.Year, now.Month, now.Day, now.Hour, now.Minute, 1, now.Offset);
}
else
{
now = Util.RoundDownToSecond(now);
}
AggregationPeriodSummary aggregates = _aggregationManager.StartOrCycleAggregators(
MetricAggregationCycleKind.Default,
futureFilter: null,
tactTimestamp: now);
if (aggregates != null)
{
Task fireAndForget = Task.Run(() => _metricManager.TrackMetricAggregates(aggregates, flush: false));
}
}
/// <summary>
///
/// </summary>
public void Flush()
{
DateTimeOffset now = DateTimeOffset.Now;
AggregationPeriodSummary aggregates = _aggregationManager.StartOrCycleAggregators(MetricAggregationCycleKind.Default, futureFilter: null, tactTimestamp: now);
TrackMetricAggregates(aggregates, flush: true);
}
public void StartOrCycleAggregators()
{
StartOrCycleAggregatorsTest(MetricAggregationCycleKind.Default, supportsSettingFilters: false);
StartOrCycleAggregatorsTest(MetricAggregationCycleKind.QuickPulse, supportsSettingFilters: true);
StartOrCycleAggregatorsTest(MetricAggregationCycleKind.Custom, supportsSettingFilters: true);
{
DateTimeOffset dto = new DateTimeOffset(2017, 10, 2, 17, 5, 0, TimeSpan.FromHours(-7));
var aggregationManager = new MetricAggregationManager();
Assert.ThrowsException <ArgumentException>(() => aggregationManager.StartOrCycleAggregators((MetricAggregationCycleKind)42, dto, futureFilter: null));
}
}
public void StopAggregators()
{
DateTimeOffset dto = new DateTimeOffset(2017, 10, 2, 17, 5, 0, TimeSpan.FromHours(-7));
var aggregationManager = new MetricAggregationManager();
var measurementMetric = new MetricSeries(
aggregationManager,
"Measurement Metric",
null,
new MetricSeriesConfigurationForMeasurement(restrictToUInt32Values: false));
var accumulatorMetric = new MetricSeries(
aggregationManager,
"Accumulator Metric",
null,
new MetricSeriesConfigurationForAccumulator(restrictToUInt32Values: false));
// Cannot stop default:
Assert.ThrowsException <ArgumentException>(() => aggregationManager.StopAggregators(MetricAggregationCycleKind.Default, dto));
// Stop cycles that never started:
AggregationPeriodSummary customPeriod = aggregationManager.StopAggregators(MetricAggregationCycleKind.Custom, dto);
Assert.IsNotNull(customPeriod);
Assert.IsNotNull(customPeriod.NonpersistentAggregates);
Assert.IsNotNull(customPeriod.PersistentAggregates);
Assert.AreEqual(0, customPeriod.NonpersistentAggregates.Count);
Assert.AreEqual(0, customPeriod.PersistentAggregates.Count);
AggregationPeriodSummary quickpulsePeriod = aggregationManager.StopAggregators(MetricAggregationCycleKind.QuickPulse, dto);
Assert.IsNotNull(quickpulsePeriod);
Assert.IsNotNull(quickpulsePeriod.NonpersistentAggregates);
Assert.IsNotNull(quickpulsePeriod.PersistentAggregates);
Assert.AreEqual(0, quickpulsePeriod.NonpersistentAggregates.Count);
Assert.AreEqual(0, quickpulsePeriod.PersistentAggregates.Count);
// Track a value. Stop cycles that never started again. Observe that persistent cycle was active by default:
measurementMetric.TrackValue(1);
accumulatorMetric.TrackValue(2);
customPeriod = aggregationManager.StopAggregators(MetricAggregationCycleKind.Custom, dto);
Assert.IsNotNull(customPeriod);
Assert.IsNotNull(customPeriod.NonpersistentAggregates);
Assert.IsNotNull(customPeriod.PersistentAggregates);
Assert.AreEqual(0, customPeriod.NonpersistentAggregates.Count);
Assert.AreEqual(1, customPeriod.PersistentAggregates.Count);
Assert.AreEqual("Accumulator Metric", customPeriod.PersistentAggregates[0].MetricId);
Assert.AreEqual(2.0, customPeriod.PersistentAggregates[0].Data["Sum"]);
quickpulsePeriod = aggregationManager.StopAggregators(MetricAggregationCycleKind.QuickPulse, dto);
Assert.IsNotNull(quickpulsePeriod);
Assert.IsNotNull(quickpulsePeriod.NonpersistentAggregates);
Assert.IsNotNull(quickpulsePeriod.PersistentAggregates);
Assert.AreEqual(0, quickpulsePeriod.NonpersistentAggregates.Count);
Assert.AreEqual(1, quickpulsePeriod.PersistentAggregates.Count);
Assert.AreEqual("Accumulator Metric", quickpulsePeriod.PersistentAggregates[0].MetricId);
Assert.AreEqual(2.0, quickpulsePeriod.PersistentAggregates[0].Data["Sum"]);
// Now start cycles, track values and stop them again. Observe that values were tracked:
aggregationManager.StartOrCycleAggregators(MetricAggregationCycleKind.Custom, dto, futureFilter: null);
aggregationManager.StartOrCycleAggregators(MetricAggregationCycleKind.QuickPulse, dto, futureFilter: null);
measurementMetric.TrackValue(3);
accumulatorMetric.TrackValue(4);
customPeriod = aggregationManager.StopAggregators(MetricAggregationCycleKind.Custom, dto);
Assert.IsNotNull(customPeriod);
Assert.IsNotNull(customPeriod.NonpersistentAggregates);
Assert.IsNotNull(customPeriod.PersistentAggregates);
Assert.AreEqual(1, customPeriod.NonpersistentAggregates.Count);
Assert.AreEqual("Measurement Metric", customPeriod.NonpersistentAggregates[0].MetricId);
Assert.AreEqual(1, customPeriod.NonpersistentAggregates[0].Data["Count"]);
Assert.AreEqual(3.0, customPeriod.NonpersistentAggregates[0].Data["Sum"]);
Assert.AreEqual(1, customPeriod.PersistentAggregates.Count);
Assert.AreEqual("Accumulator Metric", customPeriod.PersistentAggregates[0].MetricId);
Assert.AreEqual(6.0, customPeriod.PersistentAggregates[0].Data["Sum"]);
quickpulsePeriod = aggregationManager.StopAggregators(MetricAggregationCycleKind.QuickPulse, dto);
Assert.IsNotNull(quickpulsePeriod);
Assert.IsNotNull(quickpulsePeriod.NonpersistentAggregates);
Assert.IsNotNull(quickpulsePeriod.PersistentAggregates);
Assert.AreEqual(1, quickpulsePeriod.NonpersistentAggregates.Count);
Assert.AreEqual("Measurement Metric", quickpulsePeriod.NonpersistentAggregates[0].MetricId);
Assert.AreEqual(1, quickpulsePeriod.NonpersistentAggregates[0].Data["Count"]);
Assert.AreEqual(3.0, quickpulsePeriod.NonpersistentAggregates[0].Data["Sum"]);
Assert.AreEqual(1, quickpulsePeriod.PersistentAggregates.Count);
Assert.AreEqual("Accumulator Metric", quickpulsePeriod.PersistentAggregates[0].MetricId);
Assert.AreEqual(6.0, quickpulsePeriod.PersistentAggregates[0].Data["Sum"]);
measurementMetric.TrackValue(5);
accumulatorMetric.TrackValue(6);
quickpulsePeriod = aggregationManager.StopAggregators(MetricAggregationCycleKind.Custom, dto);
Assert.IsNotNull(quickpulsePeriod);
Assert.IsNotNull(quickpulsePeriod.NonpersistentAggregates);
Assert.IsNotNull(quickpulsePeriod.PersistentAggregates);
Assert.AreEqual(0, quickpulsePeriod.NonpersistentAggregates.Count);
Assert.AreEqual(1, customPeriod.PersistentAggregates.Count);
Assert.AreEqual("Accumulator Metric", customPeriod.PersistentAggregates[0].MetricId);
Assert.AreEqual(6.0, customPeriod.PersistentAggregates[0].Data["Sum"]);
quickpulsePeriod = aggregationManager.StopAggregators(MetricAggregationCycleKind.QuickPulse, dto);
Assert.IsNotNull(quickpulsePeriod);
Assert.IsNotNull(quickpulsePeriod.NonpersistentAggregates);
Assert.IsNotNull(quickpulsePeriod.PersistentAggregates);
Assert.AreEqual(0, quickpulsePeriod.NonpersistentAggregates.Count);
Assert.AreEqual(1, quickpulsePeriod.PersistentAggregates.Count);
Assert.AreEqual("Accumulator Metric", quickpulsePeriod.PersistentAggregates[0].MetricId);
Assert.AreEqual(12.0, quickpulsePeriod.PersistentAggregates[0].Data["Sum"]);
}
private static void StartOrCycleAggregatorsTest(MetricAggregationCycleKind cycleKind, bool supportsSettingFilters)
{
DateTimeOffset dto = new DateTimeOffset(2017, 10, 2, 17, 5, 0, TimeSpan.FromHours(-7));
var aggregationManager = new MetricAggregationManager();
var measurementMetric = new MetricSeries(
aggregationManager,
"Measurement Metric",
null,
new MetricSeriesConfigurationForMeasurement(restrictToUInt32Values: false));
var accumulatorMetric = new MetricSeries(
aggregationManager,
"Accumulator Metric",
null,
new MetricSeriesConfigurationForAccumulator(restrictToUInt32Values: false));
// Cycle once, get nothing:
AggregationPeriodSummary period = aggregationManager.StartOrCycleAggregators(cycleKind, dto, futureFilter: null);
Assert.IsNotNull(period);
Assert.IsNotNull(period.NonpersistentAggregates);
Assert.IsNotNull(period.PersistentAggregates);
Assert.AreEqual(0, period.NonpersistentAggregates.Count);
Assert.AreEqual(0, period.PersistentAggregates.Count);
// Record something, cycle, check for it:
measurementMetric.TrackValue(1);
accumulatorMetric.TrackValue(2);
period = aggregationManager.StartOrCycleAggregators(cycleKind, dto, futureFilter: null);
Assert.IsNotNull(period);
Assert.IsNotNull(period.NonpersistentAggregates);
Assert.IsNotNull(period.PersistentAggregates);
Assert.AreEqual(1, period.NonpersistentAggregates.Count);
Assert.AreEqual(1, period.PersistentAggregates.Count);
Assert.IsNotNull(period.NonpersistentAggregates[0]);
Assert.IsNotNull(period.PersistentAggregates[0]);
Assert.AreEqual("Measurement Metric", period.NonpersistentAggregates[0].MetricId);
Assert.AreEqual(1, period.NonpersistentAggregates[0].Data["Count"]);
Assert.AreEqual(1.0, period.NonpersistentAggregates[0].Data["Sum"]);
Assert.AreEqual("Accumulator Metric", period.PersistentAggregates[0].MetricId);
Assert.AreEqual(2.0, period.PersistentAggregates[0].Data["Sum"]);
// Now we should be empty again for non-persistent. Persistent stays:
period = aggregationManager.StartOrCycleAggregators(cycleKind, dto, futureFilter: null);
Assert.IsNotNull(period);
Assert.IsNotNull(period.NonpersistentAggregates);
Assert.IsNotNull(period.PersistentAggregates);
Assert.AreEqual(0, period.NonpersistentAggregates.Count);
Assert.AreEqual(1, period.PersistentAggregates.Count);
Assert.IsNotNull(period.PersistentAggregates[0]);
Assert.AreEqual("Accumulator Metric", period.PersistentAggregates[0].MetricId);
Assert.AreEqual(2.0, period.PersistentAggregates[0].Data["Sum"]);
// Now set a deny filter. Track. Expect to get nothng.
// Note: for persistent, values tracked under Deny filter should persist for the future, for non-persistent they are just discarded.
if (false == supportsSettingFilters)
{
Assert.ThrowsException <ArgumentException>(() => aggregationManager.StartOrCycleAggregators(
cycleKind,
dto,
futureFilter: new AcceptAllFilter()));
}
else
{
period = aggregationManager.StartOrCycleAggregators(cycleKind, dto, futureFilter: new DenyAllFilter());
Assert.IsNotNull(period);
Assert.IsNotNull(period.NonpersistentAggregates);
Assert.IsNotNull(period.PersistentAggregates);
measurementMetric.TrackValue(3);
accumulatorMetric.TrackValue(4);
period = aggregationManager.StartOrCycleAggregators(cycleKind, dto, futureFilter: null);
Assert.IsNotNull(period);
Assert.IsNotNull(period.NonpersistentAggregates);
Assert.IsNotNull(period.PersistentAggregates);
Assert.AreEqual(0, period.NonpersistentAggregates.Count);
Assert.AreEqual(0, period.PersistentAggregates.Count);
period = aggregationManager.StartOrCycleAggregators(cycleKind, dto, futureFilter: null);
Assert.IsNotNull(period);
Assert.IsNotNull(period.NonpersistentAggregates);
Assert.IsNotNull(period.PersistentAggregates);
Assert.AreEqual(0, period.NonpersistentAggregates.Count);
Assert.AreEqual(1, period.PersistentAggregates.Count);
Assert.IsNotNull(period.PersistentAggregates[0]);
Assert.AreEqual("Accumulator Metric", period.PersistentAggregates[0].MetricId);
Assert.AreEqual(6.0, period.PersistentAggregates[0].Data["Sum"]);
// Validate that deny filter was removed:
measurementMetric.TrackValue(5);
accumulatorMetric.TrackValue(6);
period = aggregationManager.StartOrCycleAggregators(cycleKind, dto, futureFilter: null);
Assert.IsNotNull(period);
Assert.IsNotNull(period.NonpersistentAggregates);
Assert.IsNotNull(period.PersistentAggregates);
Assert.AreEqual(1, period.NonpersistentAggregates.Count);
Assert.AreEqual(1, period.PersistentAggregates.Count);
Assert.IsNotNull(period.PersistentAggregates[0]);
Assert.IsNotNull(period.NonpersistentAggregates[0]);
Assert.AreEqual("Accumulator Metric", period.PersistentAggregates[0].MetricId);
Assert.AreEqual(12.0, period.PersistentAggregates[0].Data["Sum"]);
Assert.AreEqual("Measurement Metric", period.NonpersistentAggregates[0].MetricId);
Assert.AreEqual(5.0, period.NonpersistentAggregates[0].Data["Sum"]);
}
}