public void ShouldParseAndPrioritizeTimePeriodGivenTimeSpanAndStartAndEndTimes()
{
var timePeriod = TimePeriodUtils.Parse(10000, 20000, "5m");
timePeriod.Should().NotBeNull();
(timePeriod.EndTimestamp - timePeriod.StartTimestamp).Should().Be(300);
}
public void ShouldParseTimePeriodGivenTimeSpan()
{
var timePeriod = TimePeriodUtils.Parse(null, null, "5m");
timePeriod.Should().NotBeNull();
(timePeriod.EndTimestamp - timePeriod.StartTimestamp).Should().Be(300);
}
public void ShouldParseTimePeriodGivenStartAndEndTime()
{
var timePeriod = TimePeriodUtils.Parse(10000, 20000, null);
timePeriod.Should().NotBeNull();
timePeriod.StartTimestamp.Should().Be(10000);
timePeriod.EndTimestamp.Should().Be(20000);
}
public async Task <MetricsTimeSeriesResultDto> Handle(GetMetricTimeSeriesQuery request, CancellationToken cancellationToken)
{
var dbMetrics = await ValidateMetrics(request);
if (dbMetrics.Count == 0)
{
return(new MetricsTimeSeriesResultDto());
}
var timePeriod = TimePeriodUtils.Parse(request.StartTimestamp, request.EndTimestamp, request.LiveSpan);
MetricsTimeSeriesResultDto result = new MetricsTimeSeriesResultDto();
for (int i = 0; i < request.Metrics.Count; i++)
{
var requestMetric = request.Metrics[i];
var dbMetric = dbMetrics.FirstOrDefault(x => x.Name.Equals(requestMetric.MetricName) && x.Namespace.Equals(requestMetric.Namespace));
if (dbMetric == null)
{
continue;
}
// Retrieve the metrics
var metricValues = await metricsRetriever.QueryAsync(dbMetric, timePeriod);
// Down sample the metrics
var samplingResult = metricDownSampler.DownSample(metricValues, request.SamplingTime, timePeriod.StartTimestamp, timePeriod.EndTimestamp);
var metricValue = GetMetricTimeSeriesValueForSamplingType(requestMetric, samplingResult);
result.Values.Add(metricValue);
if (i == 0)
{
result.Timestamps = samplingResult.MetricValues.Select(x => x.TimeStamp).ToList();
result.Count = samplingResult.MetricValues.Count;
result.SamplingValue = samplingResult.DownsamplingValue;
}
}
return(result);
}
public async Task <List <MetricAggregatedValueDto> > Handle(GetMetricsAggregatedValueQuery request, CancellationToken cancellationToken)
{
var dbMetrics = await ValidateMetrics(request);
if (dbMetrics.Count == 0)
{
return(new List <MetricAggregatedValueDto>());
}
var timePeriod = TimePeriodUtils.Parse(request.StartTimestamp, request.EndTimestamp, request.LiveSpan);
var result = new List <MetricAggregatedValueDto>();
for (int i = 0; i < request.Metrics.Count; i++)
{
var requestMetric = request.Metrics[i];
var dbMetric = dbMetrics.FirstOrDefault(x => x.Name.Equals(requestMetric.MetricName) && x.Namespace.Equals(requestMetric.Namespace));
if (dbMetric == null)
{
continue;
}
// Retrieve the metrics
var metricValues = await metricsRetriever.QueryAsync(dbMetric, new TimePeriod()
{
StartTimestamp = timePeriod.StartTimestamp, EndTimestamp = timePeriod.EndTimestamp
});
var metricValue = GetMetricTimeSeriesValue(requestMetric, metricValues);
result.Add(metricValue);
}
return(result);
}
public void ShouldThrowExceptionIfNoStartTimeOrLiveSpanProvided()
{
Assert.Throws <Exception>(() => TimePeriodUtils.Parse(null, 20000, null));
}