private static CounterInfo BuildCounterInfo(Counter counter, DimensionSpecification queryParameters)
{
var counterInfo = new CounterInfo
{
Name = counter.Name,
Type = counter.Type,
StartTime = counter.StartTime.ToMillisecondTimestamp(),
EndTime = counter.EndTime.ToMillisecondTimestamp(),
Dimensions = counter.Dimensions.ToList(),
DimensionValues = null, // null this out by default to avoid response bloat.
};
// Queries for dimension values will come with a 'dimension=pattern' query parameter.
// Dimension values can be further filtered with '<dimensionName>=pattern'
string dimensionPattern;
if (queryParameters.TryGetValue(ReservedDimensions.DimensionDimension, out dimensionPattern))
{
counterInfo.DimensionValues = new Dictionary <string, ISet <string> >();
// We want to be able to filter dimension values by time (and only time)
var dimensionQuery = new DimensionSpecification();
string timeValue;
if (!queryParameters.TryGetValue(ReservedDimensions.StartTimeDimension, out timeValue))
{
timeValue = MinimumStartTime;
}
dimensionQuery[ReservedDimensions.StartTimeDimension] = timeValue;
if (!queryParameters.TryGetValue(ReservedDimensions.EndTimeDimension, out timeValue))
{
timeValue = MaximumEndTime;
}
dimensionQuery[ReservedDimensions.EndTimeDimension] = timeValue;
foreach (var dim in counter.Dimensions.Where(d => d.MatchGlob(dimensionPattern)))
{
string filterPattern;
if (queryParameters.TryGetValue(dimensionPattern, out filterPattern))
{
counterInfo.AddDimensionValues(dim,
counter.GetDimensionValues(dim, dimensionQuery)
.Where(dimensionValue =>
dimensionValue.MatchGlob(filterPattern)));
}
else
{
counterInfo.AddDimensionValues(dim, counter.GetDimensionValues(dim, dimensionQuery));
}
}
}
return(counterInfo);
}
/// <summary>
/// Ask the counter aggregator to do all percentile computation as opposed to any metric system server. This will
/// strip out the 'percentile=xxx' parameter in the request and return the filtered parameter list. If a
/// percentile request was present, this will apply the percentile calculation in the final calculation of this object
/// </summary>
/// <param name="queryParameters">Parameters to filter</param>
/// <returns>Filtered parameter set</returns>
public IDictionary<string, string> ApplyPercentileCalculationAggregation(IDictionary<string, string> queryParameters)
{
if (queryParameters == null)
{
return new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
}
string percentileParameter;
double percentileRequested;
var dimensionSpec = new DimensionSpecification(queryParameters);
if (!dimensionSpec.TryGetValue(ReservedDimensions.PercentileDimension, out percentileParameter) ||
!double.TryParse(percentileParameter, out percentileRequested) ||
percentileRequested < 0 || percentileRequested > 100)
{
this.shouldFilterToFinalPercentile = false;
return queryParameters;
}
this.shouldFilterToFinalPercentile = true;
this.requestedPercentile = percentileRequested;
var retVal = new Dictionary<string, string>(dimensionSpec, StringComparer.OrdinalIgnoreCase);
retVal.Remove(ReservedDimensions.PercentileDimension);
return retVal;
}
/// <summary>
/// Ask the counter aggregator to do all percentile computation as opposed to any metric system server. This will
/// strip out the 'percentile=xxx' parameter in the request and return the filtered parameter list. If a
/// percentile request was present, this will apply the percentile calculation in the final calculation of this object
/// </summary>
/// <param name="queryParameters">Parameters to filter</param>
/// <returns>Filtered parameter set</returns>
public IDictionary <string, string> ApplyPercentileCalculationAggregation(IDictionary <string, string> queryParameters)
{
if (queryParameters == null)
{
return(new Dictionary <string, string>(StringComparer.OrdinalIgnoreCase));
}
string percentileParameter;
double percentileRequested;
var dimensionSpec = new DimensionSpecification(queryParameters);
if (!dimensionSpec.TryGetValue(ReservedDimensions.PercentileDimension, out percentileParameter) ||
!double.TryParse(percentileParameter, out percentileRequested) ||
percentileRequested < 0 || percentileRequested > 100)
{
this.shouldFilterToFinalPercentile = false;
return(queryParameters);
}
this.shouldFilterToFinalPercentile = true;
this.requestedPercentile = percentileRequested;
var retVal = new Dictionary <string, string>(dimensionSpec, StringComparer.OrdinalIgnoreCase);
retVal.Remove(ReservedDimensions.PercentileDimension);
return(retVal);
}
private static CounterInfo BuildCounterInfo(Counter counter, DimensionSpecification queryParameters)
{
var counterInfo = new CounterInfo
{
Name = counter.Name,
Type = counter.Type,
StartTime = counter.StartTime.ToMillisecondTimestamp(),
EndTime = counter.EndTime.ToMillisecondTimestamp(),
Dimensions = counter.Dimensions.ToList(),
DimensionValues = null, // null this out by default to avoid response bloat.
};
// Queries for dimension values will come with a 'dimension=pattern' query parameter.
// Dimension values can be further filtered with '<dimensionName>=pattern'
string dimensionPattern;
if (queryParameters.TryGetValue(ReservedDimensions.DimensionDimension, out dimensionPattern))
{
counterInfo.DimensionValues = new Dictionary<string, ISet<string>>();
// We want to be able to filter dimension values by time (and only time)
var dimensionQuery = new DimensionSpecification();
string timeValue;
if (!queryParameters.TryGetValue(ReservedDimensions.StartTimeDimension, out timeValue))
{
timeValue = MinimumStartTime;
}
dimensionQuery[ReservedDimensions.StartTimeDimension] = timeValue;
if (!queryParameters.TryGetValue(ReservedDimensions.EndTimeDimension, out timeValue))
{
timeValue = MaximumEndTime;
}
dimensionQuery[ReservedDimensions.EndTimeDimension] = timeValue;
foreach (var dim in counter.Dimensions.Where(d => d.MatchGlob(dimensionPattern)))
{
string filterPattern;
if (queryParameters.TryGetValue(dimensionPattern, out filterPattern))
{
counterInfo.AddDimensionValues(dim,
counter.GetDimensionValues(dim, dimensionQuery)
.Where(dimensionValue =>
dimensionValue.MatchGlob(filterPattern)));
}
else
{
counterInfo.AddDimensionValues(dim, counter.GetDimensionValues(dim, dimensionQuery));
}
}
}
return counterInfo;
}