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Add support for multiple readers (#2596)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,149 @@ | ||
| // <copyright file="CompositeMetricReaderExt.cs" company="OpenTelemetry Authors"> | ||
| // Copyright The OpenTelemetry Authors | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
| // </copyright> | ||
|
|
||
| using System; | ||
| using System.Collections.Generic; | ||
| using System.Diagnostics; | ||
| using System.Diagnostics.Metrics; | ||
|
|
||
| namespace OpenTelemetry.Metrics | ||
| { | ||
| /// <summary> | ||
| /// CompositeMetricReader that deals with adding metrics and recording measurements. | ||
| /// </summary> | ||
| internal sealed partial class CompositeMetricReader | ||
| { | ||
| internal List<Metric> AddMetricsWithNoViews(Instrument instrument) | ||
| { | ||
| var metrics = new List<Metric>(this.count); | ||
| for (var cur = this.head; cur != null; cur = cur.Next) | ||
| { | ||
| var metric = cur.Value.AddMetricWithNoViews(instrument); | ||
| metrics.Add(metric); | ||
| } | ||
|
|
||
| return metrics; | ||
| } | ||
|
|
||
| internal void RecordSingleStreamLongMeasurements(List<Metric> metrics, long value, ReadOnlySpan<KeyValuePair<string, object>> tags) | ||
| { | ||
| Debug.Assert(metrics.Count == this.count, "The count of metrics to be updated for a CompositeReader must match the number of individual readers."); | ||
|
|
||
| int index = 0; | ||
| for (var cur = this.head; cur != null; cur = cur.Next) | ||
| { | ||
| if (metrics[index] != null) | ||
| { | ||
| cur.Value.RecordSingleStreamLongMeasurement(metrics[index], value, tags); | ||
| } | ||
|
|
||
| index++; | ||
| } | ||
| } | ||
|
|
||
| internal void RecordSingleStreamDoubleMeasurements(List<Metric> metrics, double value, ReadOnlySpan<KeyValuePair<string, object>> tags) | ||
| { | ||
| Debug.Assert(metrics.Count == this.count, "The count of metrics to be updated for a CompositeReader must match the number of individual readers."); | ||
|
|
||
| int index = 0; | ||
| for (var cur = this.head; cur != null; cur = cur.Next) | ||
| { | ||
| if (metrics[index] != null) | ||
| { | ||
| cur.Value.RecordSingleStreamDoubleMeasurement(metrics[index], value, tags); | ||
| } | ||
|
|
||
| index++; | ||
| } | ||
| } | ||
|
|
||
| internal List<List<Metric>> AddMetricsSuperListWithViews(Instrument instrument, List<MetricStreamConfiguration> metricStreamConfigs) | ||
| { | ||
| var metricsSuperList = new List<List<Metric>>(this.count); | ||
| for (var cur = this.head; cur != null; cur = cur.Next) | ||
| { | ||
| var metrics = cur.Value.AddMetricsListWithViews(instrument, metricStreamConfigs); | ||
| metricsSuperList.Add(metrics); | ||
| } | ||
|
|
||
| return metricsSuperList; | ||
| } | ||
|
|
||
| internal void RecordLongMeasurements(List<List<Metric>> metricsSuperList, long value, ReadOnlySpan<KeyValuePair<string, object>> tags) | ||
| { | ||
| Debug.Assert(metricsSuperList.Count == this.count, "The count of metrics to be updated for a CompositeReader must match the number of individual readers."); | ||
|
|
||
| int index = 0; | ||
| for (var cur = this.head; cur != null; cur = cur.Next) | ||
| { | ||
| if (metricsSuperList[index].Count > 0) | ||
| { | ||
| cur.Value.RecordLongMeasurement(metricsSuperList[index], value, tags); | ||
| } | ||
|
|
||
| index++; | ||
| } | ||
| } | ||
|
|
||
| internal void RecordDoubleMeasurements(List<List<Metric>> metricsSuperList, double value, ReadOnlySpan<KeyValuePair<string, object>> tags) | ||
| { | ||
| Debug.Assert(metricsSuperList.Count == this.count, "The count of metrics to be updated for a CompositeReader must match the number of individual readers."); | ||
|
|
||
| int index = 0; | ||
| for (var cur = this.head; cur != null; cur = cur.Next) | ||
| { | ||
| if (metricsSuperList[index].Count > 0) | ||
| { | ||
| cur.Value.RecordDoubleMeasurement(metricsSuperList[index], value, tags); | ||
| } | ||
|
|
||
| index++; | ||
| } | ||
| } | ||
|
|
||
| internal void CompleteSingleStreamMeasurements(List<Metric> metrics) | ||
| { | ||
| Debug.Assert(metrics.Count == this.count, "The count of metrics to be updated for a CompositeReader must match the number of individual readers."); | ||
|
|
||
| int index = 0; | ||
| for (var cur = this.head; cur != null; cur = cur.Next) | ||
| { | ||
| if (metrics[index] != null) | ||
| { | ||
| cur.Value.CompleteSingleStreamMeasurement(metrics[index]); | ||
| } | ||
|
|
||
| index++; | ||
| } | ||
| } | ||
|
|
||
| internal void CompleteMesaurements(List<List<Metric>> metricsSuperList) | ||
| { | ||
| Debug.Assert(metricsSuperList.Count == this.count, "The count of metrics to be updated for a CompositeReader must match the number of individual readers."); | ||
|
|
||
| int index = 0; | ||
| for (var cur = this.head; cur != null; cur = cur.Next) | ||
| { | ||
| if (metricsSuperList[index].Count > 0) | ||
| { | ||
| cur.Value.CompleteMeasurement(metricsSuperList[index]); | ||
| } | ||
|
|
||
| index++; | ||
| } | ||
| } | ||
| } | ||
| } |
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