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grafana/public/app/plugins/datasource/dashboard/runSharedRequest.ts

106 lines
2.9 KiB

import { Observable } from 'rxjs';
import {
DataQuery,
DataQueryRequest,
DataSourceApi,
DataSourceRef,
getDefaultTimeRange,
LoadingState,
PanelData,
DataTopic,
} from '@grafana/data';
import { getDashboardSrv } from 'app/features/dashboard/services/DashboardSrv';
import { QueryRunnerOptions } from 'app/features/query/state/PanelQueryRunner';
import { DashboardQuery, SHARED_DASHBOARD_QUERY } from './types';
export function isSharedDashboardQuery(datasource: string | DataSourceRef | DataSourceApi | null) {
if (!datasource) {
// default datasource
return false;
}
if (typeof datasource === 'string') {
return datasource === SHARED_DASHBOARD_QUERY;
}
if ('meta' in datasource) {
return datasource.meta.name === SHARED_DASHBOARD_QUERY || datasource.uid === SHARED_DASHBOARD_QUERY;
}
return datasource.uid === SHARED_DASHBOARD_QUERY;
}
export function runSharedRequest(options: QueryRunnerOptions, query: DashboardQuery): Observable<PanelData> {
return new Observable<PanelData>((subscriber) => {
const dashboard = getDashboardSrv().getCurrent();
const listenToPanelId = getPanelIdFromQuery(options.queries);
if (!listenToPanelId) {
subscriber.next(getQueryError('Missing panel reference ID'));
return undefined;
}
const listenToPanel = dashboard?.getPanelById(listenToPanelId);
if (!listenToPanel) {
subscriber.next(getQueryError('Unknown Panel: ' + listenToPanelId));
return undefined;
}
const listenToRunner = listenToPanel.getQueryRunner();
const subscription = listenToRunner
.getData({
withTransforms: Boolean(query?.withTransforms),
withFieldConfig: false,
})
.subscribe({
next: (data: PanelData) => {
// Use annotation data for series
if (query?.topic === DataTopic.Annotations) {
data = {
...data,
series: data.annotations ?? [],
annotations: undefined, // remove annotations
};
}
subscriber.next(data);
},
});
// If we are in fullscreen the other panel will not execute any queries
// So we have to trigger it from here
if (!listenToPanel.isInView) {
const { datasource, targets } = listenToPanel;
const modified = {
...options,
datasource,
panelId: listenToPanelId,
queries: targets,
};
listenToRunner.run(modified);
}
return () => {
subscription.unsubscribe();
};
});
}
function getPanelIdFromQuery(queries: DataQuery[]): number | undefined {
if (!queries || !queries.length) {
return undefined;
}
return (queries[0] as DashboardQuery).panelId;
}
function getQueryError(msg: string): PanelData {
return {
state: LoadingState.Error,
series: [],
request: {} as DataQueryRequest,
error: { message: msg },
timeRange: getDefaultTimeRange(),
};
}