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https://github.com/grafana/grafana.git
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da03175d0b
* Fallback to default data source in Explore and use uid for history uid is used to allow changing the name of the datasource and preserve history * Remove redundant console logs
101 lines
2.7 KiB
TypeScript
101 lines
2.7 KiB
TypeScript
import {
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DataSourceApi,
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EventBusExtended,
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ExploreUrlState,
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getDefaultTimeRange,
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HistoryItem,
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LoadingState,
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LogsDedupStrategy,
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PanelData,
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} from '@grafana/data';
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import { ExploreItemState } from 'app/types/explore';
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import { getDatasourceSrv } from '../../plugins/datasource_srv';
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import store from '../../../core/store';
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import { clearQueryKeys, lastUsedDatasourceKeyForOrgId } from '../../../core/utils/explore';
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import { toRawTimeRange } from '../utils/time';
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export const DEFAULT_RANGE = {
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from: 'now-6h',
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to: 'now',
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};
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/**
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* Returns a fresh Explore area state
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*/
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export const makeExplorePaneState = (): ExploreItemState => ({
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containerWidth: 0,
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datasourceInstance: null,
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datasourceMissing: false,
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history: [],
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queries: [],
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initialized: false,
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range: {
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from: null,
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to: null,
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raw: DEFAULT_RANGE,
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} as any,
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absoluteRange: {
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from: null,
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to: null,
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} as any,
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scanning: false,
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loading: false,
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queryKeys: [],
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latency: 0,
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isLive: false,
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isPaused: false,
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queryResponse: createEmptyQueryResponse(),
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tableResult: null,
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graphResult: null,
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logsResult: null,
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dedupStrategy: LogsDedupStrategy.none,
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eventBridge: (null as unknown) as EventBusExtended,
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});
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export const createEmptyQueryResponse = (): PanelData => ({
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state: LoadingState.NotStarted,
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series: [],
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timeRange: getDefaultTimeRange(),
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});
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export async function loadAndInitDatasource(
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orgId: number,
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datasourceName?: string
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): Promise<{ history: HistoryItem[]; instance: DataSourceApi }> {
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let instance;
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try {
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instance = await getDatasourceSrv().get(datasourceName);
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} catch (error) {
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// Falling back to the default data source in case the provided data source was not found.
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// It may happen if last used data source or the data source provided in the URL has been
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// removed or it is not provisioned anymore.
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instance = await getDatasourceSrv().get();
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}
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if (instance.init) {
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try {
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instance.init();
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} catch (err) {
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// TODO: should probably be handled better
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console.error(err);
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}
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}
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const historyKey = `grafana.explore.history.${instance.meta?.id}`;
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const history = store.getObject(historyKey, []);
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// Save last-used datasource
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store.set(lastUsedDatasourceKeyForOrgId(orgId), instance.uid);
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return { history, instance };
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}
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export function getUrlStateFromPaneState(pane: ExploreItemState): ExploreUrlState {
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return {
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// datasourceInstance should not be undefined anymore here but in case there is some path for it to be undefined
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// lets just fallback instead of crashing.
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datasource: pane.datasourceInstance?.name || '',
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queries: pane.queries.map(clearQueryKeys),
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range: toRawTimeRange(pane.range),
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};
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}
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