internal MeterProviderBuilder AddView(string instrumentName, MetricStreamConfiguration metricStreamConfiguration)
{
if (instrumentName.IndexOf('*') != -1)
{
var pattern = '^' + Regex.Escape(instrumentName).Replace("\\*", ".*");
var regex = new Regex(pattern, RegexOptions.Compiled | RegexOptions.IgnoreCase);
return(this.AddView(instrument => regex.IsMatch(instrument.Name) ? metricStreamConfiguration : null));
}
else
{
return(this.AddView(instrument => instrument.Name.Equals(instrumentName, StringComparison.OrdinalIgnoreCase) ? metricStreamConfiguration : null));
}
}
public MetricStreamIdentity(Instrument instrument, MetricStreamConfiguration metricStreamConfiguration)
{
this.MeterName = instrument.Meter.Name;
this.MeterVersion = instrument.Meter.Version ?? string.Empty;
this.InstrumentName = metricStreamConfiguration?.Name ?? instrument.Name;
this.Unit = instrument.Unit ?? string.Empty;
this.Description = metricStreamConfiguration?.Description ?? instrument.Description ?? string.Empty;
this.InstrumentType = instrument.GetType();
this.ViewId = metricStreamConfiguration?.ViewId;
this.MetricStreamName = $"{this.MeterName}.{this.MeterVersion}.{this.InstrumentName}";
this.TagKeys = metricStreamConfiguration?.CopiedTagKeys;
this.HistogramBucketBounds = (metricStreamConfiguration as ExplicitBucketHistogramConfiguration)?.CopiedBoundaries;
unchecked
{
var hash = 17;
hash = (hash * 31) + this.InstrumentType.GetHashCode();
hash = (hash * 31) + this.MeterName.GetHashCode();
hash = (hash * 31) + this.MeterVersion.GetHashCode();
hash = (hash * 31) + this.InstrumentName.GetHashCode();
hash = this.Unit == null ? hash : (hash * 31) + this.Unit.GetHashCode();
hash = this.Description == null ? hash : (hash * 31) + this.Description.GetHashCode();
hash = !this.ViewId.HasValue ? hash : (hash * 31) + this.ViewId.Value;
hash = this.TagKeys == null ? hash : (hash * 31) + StringArrayComparer.GetHashCode(this.TagKeys);
if (this.HistogramBucketBounds != null)
{
var len = this.HistogramBucketBounds.Length;
for (var i = 0; i < len; ++i)
{
hash = (hash * 31) + this.HistogramBucketBounds[i].GetHashCode();
}
}
this.hashCode = hash;
}
}
/// <summary>
/// Add metric view, which can be used to customize the Metrics outputted
/// from the SDK. The views are applied in the order they are added.
/// </summary>
/// <param name="meterProviderBuilder"><see cref="MeterProviderBuilder"/>.</param>
/// <param name="instrumentName">Name of the instrument, to be used as part of Instrument selection criteria.</param>
/// <param name="metricStreamConfiguration">Aggregation configuration used to produce metrics stream.</param>
/// <returns><see cref="MeterProvider"/>.</returns>
/// <remarks>See View specification here : https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/metrics/sdk.md#view.</remarks>
public static MeterProviderBuilder AddView(this MeterProviderBuilder meterProviderBuilder, string instrumentName, MetricStreamConfiguration metricStreamConfiguration)
{
if (metricStreamConfiguration == null)
{
throw new ArgumentNullException($"Metric stream configuration cannot be null.", nameof(metricStreamConfiguration));
}
if (!MeterProviderBuilderSdk.IsValidViewName(metricStreamConfiguration.Name))
{
throw new ArgumentException($"Custom view name {metricStreamConfiguration.Name} is invalid.", nameof(metricStreamConfiguration.Name));
}
if (metricStreamConfiguration is ExplicitBucketHistogramConfiguration histogramConfiguration)
{
// Validate histogram boundaries
if (histogramConfiguration.Boundaries != null && !IsSortedAndDistinct(histogramConfiguration.Boundaries))
{
throw new ArgumentException($"Histogram boundaries must be in ascending order with distinct values", nameof(histogramConfiguration.Boundaries));
}
}
if (meterProviderBuilder is MeterProviderBuilderBase meterProviderBuilderBase)
{
return(meterProviderBuilderBase.AddView(instrumentName, metricStreamConfiguration));
}
return(meterProviderBuilder);
}
/// <summary>
/// Add metric view, which can be used to customize the Metrics outputted
/// from the SDK. The views are applied in the order they are added.
/// </summary>
/// <param name="meterProviderBuilder"><see cref="MeterProviderBuilder"/>.</param>
/// <param name="instrumentName">Name of the instrument, to be used as part of Instrument selection criteria.</param>
/// <param name="metricStreamConfiguration">Aggregation configuration used to produce metrics stream.</param>
/// <returns><see cref="MeterProvider"/>.</returns>
/// <remarks>See View specification here : https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/metrics/sdk.md#view.</remarks>
public static MeterProviderBuilder AddView(this MeterProviderBuilder meterProviderBuilder, string instrumentName, MetricStreamConfiguration metricStreamConfiguration)
{
if (metricStreamConfiguration == null)
{
throw new ArgumentNullException($"Metric stream configuration cannot be null.", nameof(metricStreamConfiguration));
}
if (!MeterProviderBuilderSdk.IsValidViewName(metricStreamConfiguration.Name))
{
throw new ArgumentException($"Custom view name {metricStreamConfiguration.Name} is invalid.", nameof(metricStreamConfiguration.Name));
}
if (metricStreamConfiguration.Name != null && instrumentName.IndexOf('*') != -1)
{
throw new ArgumentException(
$"Instrument selection criteria is invalid. Instrument name '{instrumentName}' " +
$"contains a wildcard character. This is not allowed when using a view to " +
$"rename a metric stream as it would lead to conflicting metric stream names.",
nameof(instrumentName));
}
if (metricStreamConfiguration is ExplicitBucketHistogramConfiguration histogramConfiguration)
{
// Validate histogram boundaries
if (histogramConfiguration.Boundaries != null && !IsSortedAndDistinct(histogramConfiguration.Boundaries))
{
throw new ArgumentException($"Histogram boundaries must be in ascending order with distinct values", nameof(histogramConfiguration.Boundaries));
}
}
if (meterProviderBuilder is MeterProviderBuilderBase meterProviderBuilderBase)
{
return(meterProviderBuilderBase.AddView(instrumentName, metricStreamConfiguration));
}
return(meterProviderBuilder);
}
/// <summary>
/// Add metric view, which can be used to customize the Metrics outputted
/// from the SDK. The views are applied in the order they are added.
/// </summary>
/// <param name="meterProviderBuilder"><see cref="MeterProviderBuilder"/>.</param>
/// <param name="instrumentName">Name of the instrument, to be used as part of Instrument selection criteria.</param>
/// <param name="metricStreamConfiguration">Aggregation configuration used to produce metrics stream.</param>
/// <returns><see cref="MeterProvider"/>.</returns>
/// <remarks>See View specification here : https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/metrics/sdk.md#view.</remarks>
public static MeterProviderBuilder AddView(this MeterProviderBuilder meterProviderBuilder, string instrumentName, MetricStreamConfiguration metricStreamConfiguration)
{
if (meterProviderBuilder is MeterProviderBuilderBase meterProviderBuilderBase)
{
return(meterProviderBuilderBase.AddView(instrumentName, metricStreamConfiguration));
}
return(meterProviderBuilder);
}
/// <summary>
/// Add metric view, which can be used to customize the Metrics outputted
/// from the SDK. The views are applied in the order they are added.
/// </summary>
/// <param name="meterProviderBuilder"><see cref="MeterProviderBuilder"/>.</param>
/// <param name="instrumentName">Name of the instrument, to be used as part of Instrument selection criteria.</param>
/// <param name="metricStreamConfiguration">Aggregation configuration used to produce metrics stream.</param>
/// <returns><see cref="MeterProvider"/>.</returns>
/// <remarks>See View specification here : https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/metrics/sdk.md#view.</remarks>
public static MeterProviderBuilder AddView(this MeterProviderBuilder meterProviderBuilder, string instrumentName, MetricStreamConfiguration metricStreamConfiguration)
{
Guard.ThrowIfNull(metricStreamConfiguration);
if (metricStreamConfiguration.Name != null && instrumentName.IndexOf('*') != -1)
{
throw new ArgumentException(
$"Instrument selection criteria is invalid. Instrument name '{instrumentName}' " +
$"contains a wildcard character. This is not allowed when using a view to " +
$"rename a metric stream as it would lead to conflicting metric stream names.",
nameof(instrumentName));
}
if (meterProviderBuilder is MeterProviderBuilderBase meterProviderBuilderBase)
{
return(meterProviderBuilderBase.AddView(instrumentName, metricStreamConfiguration));
}
return(meterProviderBuilder);
}