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nexpie-grafana-theme
Commit ed019210 by Ryan McKinley Committed by GitHub
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refactor: Merge PanelChrome and DataPanel, do query execution in PanelQueryRunner (#16632) 

Moves query execution logic to PanelQueryRunner and structures PanelChrome so it subscribes to the query results rather than necessarily controlling their execution.
parent 36d64fec
Showing with 227 additions and 282 deletions
packages/grafana-ui/src/types/panel.ts
import { ComponentClass } from 'react';
import { LoadingState, SeriesData } from './data';
import { TimeRange } from './time';
import { ScopedVars, DataRequestInfo, DataQueryError } from './datasource';
import { ScopedVars, DataRequestInfo, DataQueryError, LegacyResponseData } from './datasource';
export type InterpolateFunction = (value: string, scopedVars?: ScopedVars, format?: string | Function) => string;
......@@ -10,6 +10,9 @@ export interface PanelData {
series: SeriesData[];
request?: DataRequestInfo;
error?: DataQueryError;
// Data format expected by Angular panels
legacy?: LegacyResponseData[];
}
export interface PanelProps<T = any> {
......
public/app/features/dashboard/dashgrid/DashboardPanel.tsx
......@@ -19,6 +19,7 @@ import { PanelResizer } from './PanelResizer';
import { PanelModel, DashboardModel } from '../state';
import { PanelPlugin } from 'app/types';
import { AngularPanelPlugin, ReactPanelPlugin } from '@grafana/ui/src/types/panel';
import { AutoSizer } from 'react-virtualized';
export interface Props {
panel: PanelModel;
......@@ -153,14 +154,25 @@ export class DashboardPanel extends PureComponent<Props, State> {
const { plugin } = this.state;
return (
<AutoSizer>
{({ width, height }) => {
if (width === 0) {
return null;
}
return (
<PanelChrome
plugin={plugin}
panel={panel}
dashboard={dashboard}
isFullscreen={isFullscreen}
isEditing={isEditing}
width={width}
height={height}
/>
);
}}
</AutoSizer>
);
}
renderAngularPanel() {
......
public/app/features/dashboard/dashgrid/DataPanel.tsx deleted 100644 → 0
// Library
import React, { Component } from 'react';
// Services
import { DatasourceSrv, getDatasourceSrv } from 'app/features/plugins/datasource_srv';
// Utils
import kbn from 'app/core/utils/kbn';
// Types
import {
DataQueryError,
LoadingState,
SeriesData,
TimeRange,
ScopedVars,
toSeriesData,
guessFieldTypes,
DataQuery,
PanelData,
DataRequestInfo,
} from '@grafana/ui';
interface RenderProps {
data: PanelData;
}
export interface Props {
datasource: string | null;
queries: DataQuery[];
panelId: number;
dashboardId?: number;
isVisible?: boolean;
timeRange?: TimeRange;
widthPixels: number;
refreshCounter: number;
minInterval?: string;
maxDataPoints?: number;
scopedVars?: ScopedVars;
children: (r: RenderProps) => JSX.Element;
onDataResponse?: (data?: SeriesData[]) => void;
onError: (message: string, error: DataQueryError) => void;
}
export interface State {
isFirstLoad: boolean;
data: PanelData;
}
/**
* All panels will be passed tables that have our best guess at colum type set
*
* This is also used by PanelChrome for snapshot support
*/
export function getProcessedSeriesData(results?: any[]): SeriesData[] {
if (!results) {
return [];
}
const series: SeriesData[] = [];
for (const r of results) {
if (r) {
series.push(guessFieldTypes(toSeriesData(r)));
}
}
return series;
}
export class DataPanel extends Component<Props, State> {
static defaultProps = {
isVisible: true,
dashboardId: 1,
};
dataSourceSrv: DatasourceSrv = getDatasourceSrv();
isUnmounted = false;
constructor(props: Props) {
super(props);
this.state = {
isFirstLoad: true,
data: {
state: LoadingState.NotStarted,
series: [],
},
};
}
componentDidMount() {
this.issueQueries();
}
componentWillUnmount() {
this.isUnmounted = true;
}
async componentDidUpdate(prevProps: Props) {
if (!this.hasPropsChanged(prevProps)) {
return;
}
this.issueQueries();
}
hasPropsChanged(prevProps: Props) {
return this.props.refreshCounter !== prevProps.refreshCounter;
}
private issueQueries = async () => {
const {
isVisible,
queries,
datasource,
panelId,
dashboardId,
timeRange,
widthPixels,
maxDataPoints,
scopedVars,
onDataResponse,
onError,
} = this.props;
if (!isVisible) {
return;
}
if (!queries.length) {
this.setState({
data: {
state: LoadingState.Done,
series: [],
},
});
return;
}
this.setState({
data: {
...this.state.data,
loading: LoadingState.Loading,
},
});
try {
const ds = await this.dataSourceSrv.get(datasource, scopedVars);
const minInterval = this.props.minInterval || ds.interval;
const intervalRes = kbn.calculateInterval(timeRange, widthPixels, minInterval);
// make shallow copy of scoped vars,
// and add built in variables interval and interval_ms
const scopedVarsWithInterval = Object.assign({}, scopedVars, {
__interval: { text: intervalRes.interval, value: intervalRes.interval },
__interval_ms: { text: intervalRes.intervalMs.toString(), value: intervalRes.intervalMs },
});
const request: DataRequestInfo = {
timezone: 'browser',
panelId: panelId,
dashboardId: dashboardId,
range: timeRange,
rangeRaw: timeRange.raw,
interval: intervalRes.interval,
intervalMs: intervalRes.intervalMs,
targets: queries,
maxDataPoints: maxDataPoints || widthPixels,
scopedVars: scopedVarsWithInterval,
cacheTimeout: null,
startTime: Date.now(),
};
const resp = await ds.query(request);
request.endTime = Date.now();
if (this.isUnmounted) {
return;
}
// Make sure the data is SeriesData[]
const series = getProcessedSeriesData(resp.data);
if (onDataResponse) {
onDataResponse(series);
}
this.setState({
isFirstLoad: false,
data: {
state: LoadingState.Done,
series,
request,
},
});
} catch (err) {
console.log('DataPanel error', err);
let message = 'Query error';
if (err.message) {
message = err.message;
} else if (err.data && err.data.message) {
message = err.data.message;
} else if (err.data && err.data.error) {
message = err.data.error;
} else if (err.status) {
message = `Query error: ${err.status} ${err.statusText}`;
}
onError(message, err);
this.setState({
isFirstLoad: false,
data: {
...this.state.data,
loading: LoadingState.Error,
},
});
}
};
render() {
const { queries } = this.props;
const { isFirstLoad, data } = this.state;
const { state } = data;
// do not render component until we have first data
if (isFirstLoad && (state === LoadingState.Loading || state === LoadingState.NotStarted)) {
return this.renderLoadingState();
}
if (!queries.length) {
return (
<div className="panel-empty">
<p>Add a query to get some data!</p>
</div>
);
}
return (
<>
{state === LoadingState.Loading && this.renderLoadingState()}
{this.props.children({ data })}
</>
);
}
private renderLoadingState(): JSX.Element {
return (
<div className="panel-loading">
<i className="fa fa-spinner fa-spin" />
</div>
);
}
}
public/app/features/dashboard/dashgrid/PanelChrome.test.tsx
......@@ -11,10 +11,8 @@ describe('PanelChrome', () => {
bbb: { value: 'BBB', text: 'upperB' },
},
},
dashboard: {},
plugin: {},
isFullscreen: false,
});
} as any);
});
it('Should replace a panel variable', () => {
......
public/app/features/dashboard/dashgrid/DataPanel.test.tsx → public/app/features/dashboard/state/PanelQueryRunner.test.ts
// Library
import React from 'react';
import { DataPanel, getProcessedSeriesData } from './DataPanel';
describe('DataPanel', () => {
let dataPanel: DataPanel;
beforeEach(() => {
dataPanel = new DataPanel({
queries: [],
panelId: 1,
widthPixels: 100,
refreshCounter: 1,
datasource: 'xxx',
children: r => {
return <div>hello</div>;
},
onError: (message, error) => {},
});
});
it('starts with unloaded state', () => {
expect(dataPanel.state.isFirstLoad).toBe(true);
});
import { getProcessedSeriesData } from './PanelQueryRunner';
describe('QueryRunner', () => {
it('converts timeseries to table skipping nulls', () => {
const input1 = {
target: 'Field Name',
......
public/app/features/dashboard/state/PanelQueryRunner.ts 0 → 100644
import { getDatasourceSrv } from 'app/features/plugins/datasource_srv';
import { Subject, Unsubscribable, PartialObserver } from 'rxjs';
import {
guessFieldTypes,
toSeriesData,
PanelData,
LoadingState,
DataQuery,
TimeRange,
ScopedVars,
DataRequestInfo,
SeriesData,
DataQueryError,
toLegacyResponseData,
isSeriesData,
DataSourceApi,
} from '@grafana/ui';
import cloneDeep from 'lodash/cloneDeep';
import kbn from 'app/core/utils/kbn';
export interface QueryRunnerOptions {
ds?: DataSourceApi; // if they already have the datasource, don't look it up
datasource: string | null;
queries: DataQuery[];
panelId: number;
dashboardId?: number;
timezone?: string;
timeRange?: TimeRange;
widthPixels: number;
minInterval?: string;
maxDataPoints?: number;
scopedVars?: ScopedVars;
cacheTimeout?: string;
delayStateNotification?: number; // default 100ms.
}
export enum PanelQueryRunnerFormat {
series = 'series',
legacy = 'legacy',
}
export class PanelQueryRunner {
private subject?: Subject<PanelData>;
private sendSeries = false;
private sendLegacy = false;
private data = {
state: LoadingState.NotStarted,
series: [],
} as PanelData;
/**
* Listen for updates to the PanelData. If a query has already run for this panel,
* the results will be immediatly passed to the observer
*/
subscribe(observer: PartialObserver<PanelData>, format = PanelQueryRunnerFormat.series): Unsubscribable {
if (!this.subject) {
this.subject = new Subject(); // Delay creating a subject until someone is listening
}
if (format === PanelQueryRunnerFormat.legacy) {
this.sendLegacy = true;
} else {
this.sendSeries = true;
}
// Send the last result
if (this.data.state !== LoadingState.NotStarted) {
// TODO: make sure it has legacy if necessary
observer.next(this.data);
}
return this.subject.subscribe(observer);
}
async run(options: QueryRunnerOptions): Promise<PanelData> {
if (!this.subject) {
this.subject = new Subject();
}
const {
queries,
timezone,
datasource,
panelId,
dashboardId,
timeRange,
cacheTimeout,
widthPixels,
maxDataPoints,
scopedVars,
delayStateNotification,
} = options;
const request: DataRequestInfo = {
timezone,
panelId,
dashboardId,
range: timeRange,
rangeRaw: timeRange.raw,
interval: '',
intervalMs: 0,
targets: cloneDeep(queries),
maxDataPoints: maxDataPoints || widthPixels,
scopedVars: scopedVars || {},
cacheTimeout,
startTime: Date.now(),
};
if (!queries) {
this.data = {
state: LoadingState.Done,
series: [], // Clear the data
legacy: [],
request,
};
this.subject.next(this.data);
return this.data;
}
try {
const ds = options.ds ? options.ds : await getDatasourceSrv().get(datasource, request.scopedVars);
const minInterval = options.minInterval || ds.interval;
const norm = kbn.calculateInterval(timeRange, widthPixels, minInterval);
// make shallow copy of scoped vars,
// and add built in variables interval and interval_ms
request.scopedVars = Object.assign({}, request.scopedVars, {
__interval: { text: norm.interval, value: norm.interval },
__interval_ms: { text: norm.intervalMs, value: norm.intervalMs },
});
request.interval = norm.interval;
request.intervalMs = norm.intervalMs;
// Send a loading status event on slower queries
setTimeout(() => {
if (!request.endTime) {
this.data = {
...this.data,
state: LoadingState.Loading,
request,
};
this.subject.next(this.data);
}
}, delayStateNotification || 100);
const resp = await ds.query(request);
request.endTime = Date.now();
// Make sure the response is in a supported format
const series = this.sendSeries ? getProcessedSeriesData(resp.data) : [];
const legacy = this.sendLegacy
? resp.data.map(v => {
if (isSeriesData(v)) {
return toLegacyResponseData(v);
}
return v;
})
: undefined;
// The Result
this.data = {
state: LoadingState.Done,
series,
legacy,
request,
};
this.subject.next(this.data);
return this.data;
} catch (err) {
const error = err as DataQueryError;
if (!error.message) {
err.message = 'Query Error';
}
this.data = {
...this.data, // ?? Should we keep existing data, or clear it ???
state: LoadingState.Error,
error: error,
};
this.subject.next(this.data);
return this.data;
}
}
}
/**
* All panels will be passed tables that have our best guess at colum type set
*
* This is also used by PanelChrome for snapshot support
*/
export function getProcessedSeriesData(results?: any[]): SeriesData[] {
if (!results) {
return [];
}
const series: SeriesData[] = [];
for (const r of results) {
if (r) {
series.push(guessFieldTypes(toSeriesData(r)));
}
}
return series;
}
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