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* add and expose new function * change node version in release.yml * add customSpanProcessor * update version * rename function
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,83 @@ | ||
| import { Context } from '@opentelemetry/api'; | ||
| import { Span, ReadableSpan, SpanProcessor } from '@opentelemetry/sdk-trace-base'; | ||
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| /** | ||
| * SpanProcessor for special operations | ||
| */ | ||
| export class CustomSpanProcessor implements SpanProcessor { | ||
|
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| /** | ||
| * Map of custom attributes that should be added to all spans | ||
| */ | ||
| private customAttributes:Map<string,string>; | ||
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| constructor() { | ||
| this.customAttributes = new Map<string, string>(); | ||
| } | ||
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| forceFlush(): Promise<void> { | ||
| return Promise.resolve(undefined); | ||
| } | ||
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| onEnd(span: ReadableSpan): void { | ||
| // No operation necessary | ||
| } | ||
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| onStart(span: Span, parentContext: Context): void { | ||
| if(this.customAttributes.size > 0) { | ||
| this.customAttributes.forEach( | ||
| // For some reason forEach() twists key and value | ||
| (value:string, key:string) => span.setAttribute(key,value) | ||
| ) | ||
| } | ||
| } | ||
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| shutdown(): Promise<void> { | ||
| return Promise.resolve(undefined); | ||
| } | ||
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| public addCustomAttribute(key:string, value:string) { | ||
| this.customAttributes.set(key, value); | ||
| } | ||
| } | ||
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| /** | ||
| * Storage to allow the use of multiple SpanProcessors | ||
| */ | ||
| export class MultiSpanProcessor implements SpanProcessor { | ||
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| private readonly spanProcessors: SpanProcessor[]; | ||
| constructor(spanProcessors: SpanProcessor[]) { | ||
| this.spanProcessors = spanProcessors; | ||
| } | ||
|
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| forceFlush(): Promise<void> { | ||
| return Promise.all( | ||
| this.spanProcessors.map((processor) => { | ||
| if (processor.forceFlush) { | ||
| return processor.forceFlush(); | ||
| } | ||
| return Promise.resolve(); | ||
| }) | ||
| ).then(() => {}); | ||
| } | ||
|
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| onEnd(span: ReadableSpan): void { | ||
| for (const processor of this.spanProcessors) { | ||
| processor.onEnd(span); | ||
| } | ||
| } | ||
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| onStart(span: Span, parentContext: Context): void { | ||
| for (const processor of this.spanProcessors) { | ||
| processor.onStart(span, parentContext); | ||
| } | ||
| } | ||
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| shutdown(): Promise<void> { | ||
| return Promise.all( | ||
| this.spanProcessors.map((processor) => processor.shutdown()) | ||
| ).then(() => {}); | ||
| } | ||
| } | ||
|
|
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