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MSSQL: Support request cancellation properly (Uses new backendSrv.fetch Observable request API) (#28809)

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* MSSQL: Support request cancellation properly (Uses new backendSrv.fetch Observable request API)

* Tests: fix test typings
This commit is contained in:
Hugo Häggmark 2020-11-11 06:19:43 +01:00 committed by GitHub
parent 8f4e50f439
commit 7abf0506b1
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3 changed files with 79 additions and 43 deletions
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49
public/app/plugins/datasource/mssql/datasource.ts
View File

@ -1,10 +1,12 @@
import _ from 'lodash';
import ResponseParser from './response_parser';
import { Observable, of } from 'rxjs';
import { catchError, map, mapTo } from 'rxjs/operators';
import { getBackendSrv } from '@grafana/runtime';
import { ScopedVars } from '@grafana/data';
import ResponseParser, { MssqlResponse } from './response_parser';
import { getTemplateSrv, TemplateSrv } from 'app/features/templating/template_srv';
import { getTimeSrv, TimeSrv } from 'app/features/dashboard/services/TimeSrv';
//Types
import { MssqlQueryForInterpolation } from './types';
export class MssqlDatasource {
@ -66,7 +68,7 @@ export class MssqlDatasource {
return expandedQueries;
}
query(options: any) {
query(options: any): Observable<MssqlResponse> {
const queries = _.filter(options.targets, item => {
return item.hide !== true;
}).map(item => {
@ -81,11 +83,11 @@ export class MssqlDatasource {
});
if (queries.length === 0) {
return Promise.resolve({ data: [] });
return of({ data: [] });
}
return getBackendSrv()
.datasourceRequest({
.fetch({
url: '/api/tsdb/query',
method: 'POST',
data: {
@ -94,7 +96,7 @@ export class MssqlDatasource {
queries: queries,
},
})
.then(this.responseParser.processQueryResult);
.pipe(map(this.responseParser.processQueryResult));
}
annotationQuery(options: any) {
@ -110,7 +112,7 @@ export class MssqlDatasource {
};
return getBackendSrv()
.datasourceRequest({
.fetch({
url: '/api/tsdb/query',
method: 'POST',
data: {
@ -119,7 +121,8 @@ export class MssqlDatasource {
queries: [query],
},
})
.then((data: any) => this.responseParser.transformAnnotationResponse(options, data));
.pipe(map((data: any) => this.responseParser.transformAnnotationResponse(options, data)))
.toPromise();
}
metricFindQuery(query: string, optionalOptions: { variable: { name: string } }) {
@ -143,17 +146,18 @@ export class MssqlDatasource {
};
return getBackendSrv()
.datasourceRequest({
.fetch({
url: '/api/tsdb/query',
method: 'POST',
data: data,
})
.then((data: any) => this.responseParser.parseMetricFindQueryResult(refId, data));
.pipe(map((data: any) => this.responseParser.parseMetricFindQueryResult(refId, data)))
.toPromise();
}
testDatasource() {
return getBackendSrv()
.datasourceRequest({
.fetch({
url: '/api/tsdb/query',
method: 'POST',
data: {
@ -171,17 +175,18 @@ export class MssqlDatasource {
],
},
})
.then((res: any) => {
return { status: 'success', message: 'Database Connection OK' };
})
.catch((err: any) => {
console.error(err);
if (err.data && err.data.message) {
return { status: 'error', message: err.data.message };
} else {
return { status: 'error', message: err.status };
}
});
.pipe(
mapTo({ status: 'success', message: 'Database Connection OK' }),
catchError(err => {
console.error(err);
if (err.data && err.data.message) {
return of({ status: 'error', message: err.data.message });
}
return of({ status: 'error', message: err.status });
})
)
.toPromise();
}
targetContainsTemplate(target: any) {

26
public/app/plugins/datasource/mssql/response_parser.ts
View File

@ -1,7 +1,25 @@
import _ from 'lodash';
import { MetricFindValue } from '@grafana/data';
interface TableResponse extends Record<string, any> {
type: string;
refId: string;
meta: any;
}
interface SeriesResponse extends Record<string, any> {
target: string;
refId: string;
meta: any;
datapoints: [any[]];
}
export interface MssqlResponse {
data: Array<TableResponse | SeriesResponse>;
}
export default class ResponseParser {
processQueryResult(res: any) {
processQueryResult(res: any): MssqlResponse {
const data: any[] = [];
if (!res.data.results) {
@ -35,7 +53,7 @@ export default class ResponseParser {
return { data: data };
}
parseMetricFindQueryResult(refId: string, results: any) {
parseMetricFindQueryResult(refId: string, results: any): MetricFindValue[] {
if (!results || results.data.length === 0 || results.data.results[refId].meta.rowCount === 0) {
return [];
}
@ -52,7 +70,7 @@ export default class ResponseParser {
return this.transformToSimpleList(rows);
}
transformToKeyValueList(rows: any, textColIndex: number, valueColIndex: number) {
transformToKeyValueList(rows: any, textColIndex: number, valueColIndex: number): MetricFindValue[] {
const res = [];
for (let i = 0; i < rows.length; i++) {
@ -64,7 +82,7 @@ export default class ResponseParser {
return res;
}
transformToSimpleList(rows: any) {
transformToSimpleList(rows: any): MetricFindValue[] {
const res = [];
for (let i = 0; i < rows.length; i++) {

47
public/app/plugins/datasource/mssql/specs/datasource.test.ts
View File

@ -1,10 +1,12 @@
import { of } from 'rxjs';
import { dateTime } from '@grafana/data';
import { MssqlDatasource } from '../datasource';
import { TimeSrvStub } from 'test/specs/helpers';
import { dateTime } from '@grafana/data';
import { TemplateSrv } from 'app/features/templating/template_srv';
import { backendSrv } from 'app/core/services/backend_srv';
import { initialCustomVariableModelState } from '../../../../features/variables/custom/reducer'; // will use the version in __mocks__
import { initialCustomVariableModelState } from '../../../../features/variables/custom/reducer';
import { FetchResponse } from '@grafana/runtime'; // will use the version in __mocks__
jest.mock('@grafana/runtime', () => ({
...((jest.requireActual('@grafana/runtime') as unknown) as object),
@ -13,7 +15,7 @@ jest.mock('@grafana/runtime', () => ({
describe('MSSQLDatasource', () => {
const templateSrv: TemplateSrv = new TemplateSrv();
const datasourceRequestMock = jest.spyOn(backendSrv, 'datasourceRequest');
const fetchMock = jest.spyOn(backendSrv, 'fetch');
const ctx: any = {
timeSrv: new TimeSrvStub(),
@ -61,7 +63,7 @@ describe('MSSQLDatasource', () => {
};
beforeEach(() => {
datasourceRequestMock.mockImplementation((options: any) => Promise.resolve({ data: response, status: 200 }));
fetchMock.mockImplementation(() => of(createFetchResponse(response)));
return ctx.ds.annotationQuery(options).then((data: any) => {
results = data;
@ -107,7 +109,7 @@ describe('MSSQLDatasource', () => {
};
beforeEach(() => {
datasourceRequestMock.mockImplementation((options: any) => Promise.resolve({ data: response, status: 200 }));
fetchMock.mockImplementation(() => of(createFetchResponse(response)));
return ctx.ds.metricFindQuery(query).then((data: any) => {
results = data;
@ -146,7 +148,7 @@ describe('MSSQLDatasource', () => {
};
beforeEach(() => {
datasourceRequestMock.mockImplementation((options: any) => Promise.resolve({ data: response, status: 200 }));
fetchMock.mockImplementation(() => of(createFetchResponse(response)));
return ctx.ds.metricFindQuery(query).then((data: any) => {
results = data;
@ -187,7 +189,7 @@ describe('MSSQLDatasource', () => {
};
beforeEach(() => {
datasourceRequestMock.mockImplementation((options: any) => Promise.resolve({ data: response, status: 200 }));
fetchMock.mockImplementation(() => of(createFetchResponse(response)));
return ctx.ds.metricFindQuery(query).then((data: any) => {
results = data;
});
@ -201,7 +203,6 @@ describe('MSSQLDatasource', () => {
});
describe('When performing metricFindQuery', () => {
let results: any;
const query = 'select * from atable';
const response = {
results: {
@ -227,19 +228,17 @@ describe('MSSQLDatasource', () => {
beforeEach(() => {
ctx.timeSrv.setTime(time);
datasourceRequestMock.mockImplementation((options: any) => {
results = options.data;
return Promise.resolve({ data: response, status: 200 });
});
fetchMock.mockImplementation(() => of(createFetchResponse(response)));
return ctx.ds.metricFindQuery(query);
});
it('should pass timerange to datasourceRequest', () => {
expect(results.from).toBe(time.from.valueOf().toString());
expect(results.to).toBe(time.to.valueOf().toString());
expect(results.queries.length).toBe(1);
expect(results.queries[0].rawSql).toBe(query);
expect(fetchMock).toBeCalledTimes(1);
expect(fetchMock.mock.calls[0][0].data.from).toBe(time.from.valueOf().toString());
expect(fetchMock.mock.calls[0][0].data.to).toBe(time.to.valueOf().toString());
expect(fetchMock.mock.calls[0][0].data.queries.length).toBe(1);
expect(fetchMock.mock.calls[0][0].data.queries[0].rawSql).toBe(query);
});
});
@ -335,3 +334,17 @@ describe('MSSQLDatasource', () => {
});
});
});
function createFetchResponse<T>(data: T): FetchResponse<T> {
return {
data,
status: 200,
url: 'http://localhost:3000/api/query',
config: { url: 'http://localhost:3000/api/query' },
type: 'basic',
statusText: 'Ok',
redirected: false,
headers: ({} as unknown) as Headers,
ok: true,
};
}