using System.Collections.Generic; using System.Threading; namespace System.Diagnostics.Metrics { internal sealed class MultiSizeLabelNameDictionary<TAggregator> where TAggregator : Aggregator { private TAggregator NoLabelAggregator; private FixedSizeLabelNameDictionary<StringSequence1, ObjectSequence1, TAggregator> Label1; private FixedSizeLabelNameDictionary<StringSequence2, ObjectSequence2, TAggregator> Label2; private FixedSizeLabelNameDictionary<StringSequence3, ObjectSequence3, TAggregator> Label3; private FixedSizeLabelNameDictionary<StringSequenceMany, ObjectSequenceMany, TAggregator> LabelMany; public MultiSizeLabelNameDictionary(object initialLabelNameDict) { NoLabelAggregator = null; Label1 = null; Label2 = null; Label3 = null; LabelMany = null; TAggregator val = initialLabelNameDict as TAggregator; if (val == null) { FixedSizeLabelNameDictionary<StringSequence1, ObjectSequence1, TAggregator> fixedSizeLabelNameDictionary = initialLabelNameDict as FixedSizeLabelNameDictionary<StringSequence1, ObjectSequence1, TAggregator>; if (fixedSizeLabelNameDictionary == null) { FixedSizeLabelNameDictionary<StringSequence2, ObjectSequence2, TAggregator> fixedSizeLabelNameDictionary2 = initialLabelNameDict as FixedSizeLabelNameDictionary<StringSequence2, ObjectSequence2, TAggregator>; if (fixedSizeLabelNameDictionary2 == null) { FixedSizeLabelNameDictionary<StringSequence3, ObjectSequence3, TAggregator> fixedSizeLabelNameDictionary3 = initialLabelNameDict as FixedSizeLabelNameDictionary<StringSequence3, ObjectSequence3, TAggregator>; if (fixedSizeLabelNameDictionary3 == null) { FixedSizeLabelNameDictionary<StringSequenceMany, ObjectSequenceMany, TAggregator> fixedSizeLabelNameDictionary4 = initialLabelNameDict as FixedSizeLabelNameDictionary<StringSequenceMany, ObjectSequenceMany, TAggregator>; if (fixedSizeLabelNameDictionary4 != null) LabelMany = fixedSizeLabelNameDictionary4; } else Label3 = fixedSizeLabelNameDictionary3; } else Label2 = fixedSizeLabelNameDictionary2; } else Label1 = fixedSizeLabelNameDictionary; } else NoLabelAggregator = val; } public TAggregator GetNoLabelAggregator(Func<TAggregator> createFunc) { if (NoLabelAggregator == null) { TAggregator val = createFunc(); if (val != null) Interlocked.CompareExchange<TAggregator>(ref NoLabelAggregator, val, (TAggregator)null); } return NoLabelAggregator; } public FixedSizeLabelNameDictionary<TStringSequence, TObjectSequence, TAggregator> GetFixedSizeLabelNameDictionary<TStringSequence, TObjectSequence>() where TStringSequence : IStringSequence, IEquatable<TStringSequence> where TObjectSequence : IObjectSequence, IEquatable<TObjectSequence> { TStringSequence val = default(TStringSequence); if (((object)val) is StringSequence1) { if (this.Label1 == null) Interlocked.CompareExchange<FixedSizeLabelNameDictionary<StringSequence1, ObjectSequence1, TAggregator>>(ref this.Label1, new FixedSizeLabelNameDictionary<StringSequence1, ObjectSequence1, TAggregator>(), (FixedSizeLabelNameDictionary<StringSequence1, ObjectSequence1, TAggregator>)null); return (FixedSizeLabelNameDictionary<TStringSequence, TObjectSequence, TAggregator>)this.Label1; } if (((object)val) is StringSequence2) { if (this.Label2 == null) Interlocked.CompareExchange<FixedSizeLabelNameDictionary<StringSequence2, ObjectSequence2, TAggregator>>(ref this.Label2, new FixedSizeLabelNameDictionary<StringSequence2, ObjectSequence2, TAggregator>(), (FixedSizeLabelNameDictionary<StringSequence2, ObjectSequence2, TAggregator>)null); return (FixedSizeLabelNameDictionary<TStringSequence, TObjectSequence, TAggregator>)this.Label2; } if (((object)val) is StringSequence3) { if (this.Label3 == null) Interlocked.CompareExchange<FixedSizeLabelNameDictionary<StringSequence3, ObjectSequence3, TAggregator>>(ref this.Label3, new FixedSizeLabelNameDictionary<StringSequence3, ObjectSequence3, TAggregator>(), (FixedSizeLabelNameDictionary<StringSequence3, ObjectSequence3, TAggregator>)null); return (FixedSizeLabelNameDictionary<TStringSequence, TObjectSequence, TAggregator>)this.Label3; } if (((object)val) is StringSequenceMany) { if (this.LabelMany == null) Interlocked.CompareExchange<FixedSizeLabelNameDictionary<StringSequenceMany, ObjectSequenceMany, TAggregator>>(ref this.LabelMany, new FixedSizeLabelNameDictionary<StringSequenceMany, ObjectSequenceMany, TAggregator>(), (FixedSizeLabelNameDictionary<StringSequenceMany, ObjectSequenceMany, TAggregator>)null); return (FixedSizeLabelNameDictionary<TStringSequence, TObjectSequence, TAggregator>)this.LabelMany; } return null; } public void Collect(Action<LabeledAggregationStatistics> visitFunc) { if (NoLabelAggregator != null) { IAggregationStatistics stats = NoLabelAggregator.Collect(); visitFunc(new LabeledAggregationStatistics(stats, Array.Empty<KeyValuePair<string, string>>())); } Label1?.Collect(visitFunc); Label2?.Collect(visitFunc); Label3?.Collect(visitFunc); LabelMany?.Collect(visitFunc); } } }