33 lines
1.0 KiB
TypeScript
33 lines
1.0 KiB
TypeScript
import { from, Observable, of } from 'rxjs';
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import { catchError } from 'rxjs/operators';
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import { AnnotationEvent, DataSourceApi } from '@grafana/data';
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import { shouldUseLegacyRunner } from 'app/features/annotations/standardAnnotationSupport';
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import { AnnotationQueryRunner, AnnotationQueryRunnerOptions } from './types';
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import { handleAnnotationQueryRunnerError } from './utils';
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export class LegacyAnnotationQueryRunner implements AnnotationQueryRunner {
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canRun(datasource?: DataSourceApi): boolean {
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if (!datasource) {
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return false;
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}
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if (shouldUseLegacyRunner(datasource)) {
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return true;
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}
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return Boolean(datasource.annotationQuery && !datasource.annotations);
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}
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run({ annotation, datasource, dashboard, range }: AnnotationQueryRunnerOptions): Observable<AnnotationEvent[]> {
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if (!this.canRun(datasource)) {
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return of([]);
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}
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return from(datasource!.annotationQuery!({ range, rangeRaw: range.raw, annotation, dashboard })).pipe(
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catchError(handleAnnotationQueryRunnerError)
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);
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}
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}
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