1317 lines
44 KiB
TypeScript
1317 lines
44 KiB
TypeScript
import { cloneDeep, first as _first, isNumber, isString, map as _map, isObject } from 'lodash';
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import { from, generate, lastValueFrom, Observable, of } from 'rxjs';
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import { catchError, first, map, mergeMap, skipWhile, throwIfEmpty, tap } from 'rxjs/operators';
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import { SemVer } from 'semver';
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import {
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DataFrame,
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DataLink,
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DataQueryRequest,
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DataQueryResponse,
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DataSourceInstanceSettings,
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DataSourceWithLogsContextSupport,
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DataSourceWithQueryImportSupport,
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DataSourceWithSupplementaryQueriesSupport,
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DateTime,
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dateTime,
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getDefaultTimeRange,
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AbstractQuery,
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LogLevel,
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LogRowModel,
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MetricFindValue,
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ScopedVars,
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TimeRange,
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QueryFixAction,
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CoreApp,
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SupplementaryQueryType,
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DataQueryError,
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rangeUtil,
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LogRowContextQueryDirection,
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LogRowContextOptions,
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SupplementaryQueryOptions,
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toUtc,
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AnnotationEvent,
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DataSourceWithToggleableQueryFiltersSupport,
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QueryFilterOptions,
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ToggleFilterAction,
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DataSourceGetTagValuesOptions,
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AdHocVariableFilter,
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DataSourceWithQueryModificationSupport,
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AdHocVariableModel,
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TypedVariableModel,
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} from '@grafana/data';
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import {
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DataSourceWithBackend,
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getDataSourceSrv,
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BackendSrvRequest,
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TemplateSrv,
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getTemplateSrv,
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config,
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} from '@grafana/runtime';
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import { IndexPattern, intervalMap } from './IndexPattern';
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import LanguageProvider from './LanguageProvider';
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import { ElasticQueryBuilder } from './QueryBuilder';
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import { ElasticsearchAnnotationsQueryEditor } from './components/QueryEditor/AnnotationQueryEditor';
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import { isBucketAggregationWithField } from './components/QueryEditor/BucketAggregationsEditor/aggregations';
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import { bucketAggregationConfig } from './components/QueryEditor/BucketAggregationsEditor/utils';
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import {
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isMetricAggregationWithField,
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isPipelineAggregationWithMultipleBucketPaths,
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} from './components/QueryEditor/MetricAggregationsEditor/aggregations';
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import { metricAggregationConfig } from './components/QueryEditor/MetricAggregationsEditor/utils';
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import { isMetricAggregationWithMeta } from './guards';
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import {
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addAddHocFilter,
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addFilterToQuery,
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addStringFilterToQuery,
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queryHasFilter,
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removeFilterFromQuery,
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} from './modifyQuery';
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import { trackAnnotationQuery, trackQuery } from './tracking';
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import {
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Logs,
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BucketAggregation,
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DataLinkConfig,
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ElasticsearchOptions,
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ElasticsearchQuery,
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TermsQuery,
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Interval,
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ElasticsearchAnnotationQuery,
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RangeMap,
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isElasticsearchResponseWithAggregations,
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isElasticsearchResponseWithHits,
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ElasticsearchHits,
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} from './types';
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import { getScriptValue, isTimeSeriesQuery } from './utils';
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export const REF_ID_STARTER_LOG_VOLUME = 'log-volume-';
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export const REF_ID_STARTER_LOG_SAMPLE = 'log-sample-';
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// Those are metadata fields as defined in https://www.elastic.co/guide/en/elasticsearch/reference/current/mapping-fields.html#_identity_metadata_fields.
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// custom fields can start with underscores, therefore is not safe to exclude anything that starts with one.
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const ELASTIC_META_FIELDS = [
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'_index',
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'_type',
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'_id',
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'_source',
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'_size',
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'_field_names',
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'_ignored',
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'_routing',
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'_meta',
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];
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export class ElasticDatasource
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extends DataSourceWithBackend<ElasticsearchQuery, ElasticsearchOptions>
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implements
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DataSourceWithLogsContextSupport,
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DataSourceWithQueryImportSupport<ElasticsearchQuery>,
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DataSourceWithSupplementaryQueriesSupport<ElasticsearchQuery>,
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DataSourceWithToggleableQueryFiltersSupport<ElasticsearchQuery>,
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DataSourceWithQueryModificationSupport<ElasticsearchQuery>
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{
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basicAuth?: string;
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withCredentials?: boolean;
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url: string;
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name: string;
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index: string;
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timeField: string;
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interval: string;
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maxConcurrentShardRequests?: number;
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queryBuilder: ElasticQueryBuilder;
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indexPattern: IndexPattern;
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intervalPattern?: Interval;
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logLevelField?: string;
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dataLinks: DataLinkConfig[];
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languageProvider: LanguageProvider;
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includeFrozen: boolean;
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isProxyAccess: boolean;
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databaseVersion: SemVer | null;
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constructor(
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instanceSettings: DataSourceInstanceSettings<ElasticsearchOptions>,
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private readonly templateSrv: TemplateSrv = getTemplateSrv()
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) {
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super(instanceSettings);
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this.basicAuth = instanceSettings.basicAuth;
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this.withCredentials = instanceSettings.withCredentials;
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this.url = instanceSettings.url!;
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this.name = instanceSettings.name;
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this.isProxyAccess = instanceSettings.access === 'proxy';
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const settingsData = instanceSettings.jsonData || {};
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// instanceSettings.database is deprecated and should be removed in the future
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this.index = settingsData.index ?? instanceSettings.database ?? '';
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this.timeField = settingsData.timeField;
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this.indexPattern = new IndexPattern(this.index, settingsData.interval);
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this.intervalPattern = settingsData.interval;
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this.interval = settingsData.timeInterval;
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this.maxConcurrentShardRequests = settingsData.maxConcurrentShardRequests;
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this.queryBuilder = new ElasticQueryBuilder({
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timeField: this.timeField,
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});
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this.logLevelField = settingsData.logLevelField || '';
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this.dataLinks = settingsData.dataLinks || [];
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this.includeFrozen = settingsData.includeFrozen ?? false;
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// we want to cache the database version so we don't have to ask for it every time
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this.databaseVersion = null;
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this.annotations = {
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QueryEditor: ElasticsearchAnnotationsQueryEditor,
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};
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if (this.logLevelField === '') {
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this.logLevelField = undefined;
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}
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this.languageProvider = new LanguageProvider(this);
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}
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getResourceRequest(path: string, params?: BackendSrvRequest['params'], options?: Partial<BackendSrvRequest>) {
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return this.getResource(path, params, options);
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}
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postResourceRequest(path: string, data?: BackendSrvRequest['data'], options?: Partial<BackendSrvRequest>) {
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const resourceOptions = options ?? {};
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resourceOptions.headers = resourceOptions.headers ?? {};
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resourceOptions.headers['content-type'] = 'application/x-ndjson';
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return this.postResource(path, data, resourceOptions);
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}
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/**
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* Implemented as part of DataSourceWithQueryImportSupport.
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* Imports queries from AbstractQuery objects when switching between different data source types.
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* @returns A Promise that resolves to an array of ES queries.
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*/
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async importFromAbstractQueries(abstractQueries: AbstractQuery[]): Promise<ElasticsearchQuery[]> {
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return abstractQueries.map((abstractQuery) => this.languageProvider.importFromAbstractQuery(abstractQuery));
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}
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/**
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* Sends a GET request to the specified url on the newest matching and available index.
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*
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* When multiple indices span the provided time range, the request is sent starting from the newest index,
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* and then going backwards until an index is found.
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*/
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private requestAllIndices(range = getDefaultTimeRange()) {
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let indexList = this.indexPattern.getIndexList(range.from, range.to);
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if (!Array.isArray(indexList)) {
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indexList = [this.indexPattern.getIndexForToday()];
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}
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const url = config.featureToggles.elasticsearchCrossClusterSearch ? '_field_caps' : '_mapping';
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const indexUrlList = indexList.map((index) => {
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// make sure `index` does not end with a slash
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index = index.replace(/\/$/, '');
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if (index === '') {
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return url;
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}
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return `${index}/${url}`;
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});
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const maxTraversals = 7; // do not go beyond one week (for a daily pattern)
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const listLen = indexUrlList.length;
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return generate({
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initialState: 0,
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condition: (i) => i < Math.min(listLen, maxTraversals),
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iterate: (i) => i + 1,
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}).pipe(
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mergeMap((index) => {
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// catch all errors and emit an object with an err property to simplify checks later in the pipeline
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const path = indexUrlList[listLen - index - 1];
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return from(this.getResource(path)).pipe(catchError((err) => of({ err })));
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}),
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skipWhile((resp) => resp?.err?.status === 404), // skip all requests that fail because missing Elastic index
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throwIfEmpty(() => 'Could not find an available index for this time range.'), // when i === Math.min(listLen, maxTraversals) generate will complete but without emitting any values which means we didn't find a valid index
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first(), // take the first value that isn't skipped
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map((resp) => {
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if (resp.err) {
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throw resp.err; // if there is some other error except 404 then we must throw it
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}
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return resp;
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})
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);
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}
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/**
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* Implemented as part of the DataSourceAPI. It allows the datasource to serve as a source of annotations for a dashboard.
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* @returns A promise that resolves to an array of AnnotationEvent objects representing the annotations for the dashboard.
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* @todo This is deprecated and it is recommended to use the `AnnotationSupport` feature for annotations.
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*/
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annotationQuery(options: any): Promise<AnnotationEvent[]> {
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const payload = this.prepareAnnotationRequest(options);
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trackAnnotationQuery(options.annotation);
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// TODO: We should migrate this to use query and not resource call
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// The plan is to look at this when we start to work on raw query editor for ES
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// as we will have to explore how to handle any query
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const annotationObservable = from(this.postResourceRequest('_msearch', payload));
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return lastValueFrom(
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annotationObservable.pipe(
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map((res: unknown) => {
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if (!isElasticsearchResponseWithHits(res)) {
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return [];
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}
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const hits = res?.responses[0].hits?.hits ?? [];
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return this.processHitsToAnnotationEvents(options.annotation, hits);
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})
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)
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);
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}
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// Private method used in the `annotationQuery` to prepare the payload for the Elasticsearch annotation request
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private prepareAnnotationRequest(options: {
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annotation: ElasticsearchAnnotationQuery;
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// Should be DashboardModel but cannot import that here from the main app. This is a temporary solution as we need to move from deprecated annotations.
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dashboard: { getVariables: () => TypedVariableModel[] };
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range: TimeRange;
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}) {
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const annotation = options.annotation;
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const timeField = annotation.timeField || '@timestamp';
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const timeEndField = annotation.timeEndField || null;
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const dashboard = options.dashboard;
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// eslint-disable-next-line @typescript-eslint/consistent-type-assertions
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const adhocVariables = dashboard.getVariables().filter((v) => v.type === 'adhoc') as AdHocVariableModel[];
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const annotationRelatedVariables = adhocVariables.filter((v) => v.datasource?.uid === annotation.datasource.uid);
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const filters = annotationRelatedVariables.map((v) => v.filters).flat();
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// the `target.query` is the "new" location for the query.
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// normally we would write this code as
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// try-the-new-place-then-try-the-old-place,
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// but we had the bug at
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// https://github.com/grafana/grafana/issues/61107
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// that may have stored annotations where
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// both the old and the new place are set,
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// and in that scenario the old place needs
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// to have priority.
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const queryString = annotation.query ?? annotation.target?.query ?? '';
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const dateRanges = [];
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const rangeStart: RangeMap = {};
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rangeStart[timeField] = {
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from: options.range.from.valueOf(),
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to: options.range.to.valueOf(),
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format: 'epoch_millis',
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};
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dateRanges.push({ range: rangeStart });
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if (timeEndField) {
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const rangeEnd: RangeMap = {};
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rangeEnd[timeEndField] = {
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from: options.range.from.valueOf(),
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to: options.range.to.valueOf(),
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format: 'epoch_millis',
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};
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dateRanges.push({ range: rangeEnd });
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}
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const queryInterpolated = this.interpolateLuceneQuery(queryString);
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const finalQuery = this.addAdHocFilters(queryInterpolated, filters);
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const query: {
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bool: { filter: Array<Record<string, Record<string, string | number | Array<{ range: RangeMap }>>>> };
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} = {
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bool: {
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filter: [
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{
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bool: {
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should: dateRanges,
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minimum_should_match: 1,
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},
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},
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],
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},
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};
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if (finalQuery) {
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query.bool.filter.push({
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query_string: {
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query: finalQuery,
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},
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});
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}
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const data = {
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query,
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size: 10000,
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};
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const header: Record<string, string | string[] | boolean> = {
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search_type: 'query_then_fetch',
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ignore_unavailable: true,
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};
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// @deprecated
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// Field annotation.index is deprecated and will be removed in the future
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if (annotation.index) {
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header.index = annotation.index;
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} else {
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header.index = this.indexPattern.getIndexList(options.range.from, options.range.to);
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}
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const payload = JSON.stringify(header) + '\n' + JSON.stringify(data) + '\n';
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return payload;
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}
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// Private method used in the `annotationQuery` to process Elasticsearch hits into AnnotationEvents
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private processHitsToAnnotationEvents(annotation: ElasticsearchAnnotationQuery, hits: ElasticsearchHits) {
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const timeField = annotation.timeField || '@timestamp';
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const timeEndField = annotation.timeEndField || null;
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const textField = annotation.textField || 'tags';
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const tagsField = annotation.tagsField || null;
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const list: AnnotationEvent[] = [];
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const getFieldFromSource = (source: any, fieldName: string | null) => {
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if (!fieldName) {
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return;
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}
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const fieldNames = fieldName.split('.');
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let fieldValue = source;
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for (let i = 0; i < fieldNames.length; i++) {
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fieldValue = fieldValue[fieldNames[i]];
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if (!fieldValue) {
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return '';
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}
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}
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return fieldValue;
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};
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for (let i = 0; i < hits.length; i++) {
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const source = hits[i]._source;
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let time = getFieldFromSource(source, timeField);
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if (typeof hits[i].fields !== 'undefined') {
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const fields = hits[i].fields;
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if (typeof fields === 'object' && (isString(fields[timeField]) || isNumber(fields[timeField]))) {
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time = fields[timeField];
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}
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}
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const event: AnnotationEvent = {
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annotation: annotation,
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time: toUtc(time).valueOf(),
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text: getFieldFromSource(source, textField),
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};
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if (timeEndField) {
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const timeEnd = getFieldFromSource(source, timeEndField);
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if (timeEnd) {
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event.timeEnd = toUtc(timeEnd).valueOf();
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}
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}
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// legacy support for title field
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if (annotation.titleField) {
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const title = getFieldFromSource(source, annotation.titleField);
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if (title) {
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event.text = title + '\n' + event.text;
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}
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}
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const tags = getFieldFromSource(source, tagsField);
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if (typeof tags === 'string') {
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event.tags = tags.split(',');
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} else {
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event.tags = tags;
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}
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list.push(event);
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}
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return list;
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}
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// Replaces variables in a Lucene query string
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interpolateLuceneQuery(queryString: string, scopedVars?: ScopedVars) {
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return this.templateSrv.replace(queryString, scopedVars, 'lucene');
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}
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/**
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* Implemented as a part of DataSourceApi. Interpolates variables and adds ad hoc filters to a list of ES queries.
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* @returns An array of ES queries with interpolated variables and ad hoc filters using `applyTemplateVariables`.
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*/
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interpolateVariablesInQueries(
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queries: ElasticsearchQuery[],
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scopedVars: ScopedVars,
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filters?: AdHocVariableFilter[]
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): ElasticsearchQuery[] {
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return queries.map((q) => this.applyTemplateVariables(q, scopedVars, filters));
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}
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// Private method used in `getTerms` to get the header for the Elasticsearch query
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private getQueryHeader(searchType: string, timeFrom?: DateTime, timeTo?: DateTime): string {
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const queryHeader = {
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search_type: searchType,
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ignore_unavailable: true,
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index: this.indexPattern.getIndexList(timeFrom, timeTo),
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};
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return JSON.stringify(queryHeader);
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}
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/**
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* Implemented as part of DataSourceApi. Converts a ES query to a simple text string.
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* Used, for example, in Query history.
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* @returns A text representation of the query.
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*/
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getQueryDisplayText(query: ElasticsearchQuery) {
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// TODO: This might be refactored a bit.
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const metricAggs = query.metrics;
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const bucketAggs = query.bucketAggs;
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let text = '';
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if (query.query) {
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text += 'Query: ' + query.query + ', ';
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}
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text += 'Metrics: ';
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text += metricAggs?.reduce((acc, metric) => {
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const metricConfig = metricAggregationConfig[metric.type];
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let text = metricConfig.label + '(';
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if (isMetricAggregationWithField(metric)) {
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text += metric.field;
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}
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if (isPipelineAggregationWithMultipleBucketPaths(metric)) {
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text += getScriptValue(metric).replace(new RegExp('params.', 'g'), '');
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}
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text += '), ';
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return `${acc} ${text}`;
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}, '');
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text += bucketAggs?.reduce((acc, bucketAgg, index) => {
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const bucketConfig = bucketAggregationConfig[bucketAgg.type];
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let text = '';
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if (index === 0) {
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text += ' Group by: ';
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}
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text += bucketConfig.label + '(';
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if (isBucketAggregationWithField(bucketAgg)) {
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text += bucketAgg.field;
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}
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return `${acc} ${text}), `;
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}, '');
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if (query.alias) {
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text += 'Alias: ' + query.alias;
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}
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return text;
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}
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/**
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* Part of `DataSourceWithLogsContextSupport`, used to retrieve log context for a log row.
|
|
* @returns A promise that resolves to an object containing the log context data as DataFrames.
|
|
*/
|
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getLogRowContext = async (row: LogRowModel, options?: LogRowContextOptions): Promise<{ data: DataFrame[] }> => {
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const contextRequest = this.makeLogContextDataRequest(row, options);
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return lastValueFrom(
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this.query(contextRequest).pipe(
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|
catchError((err) => {
|
|
const error: DataQueryError = {
|
|
message: 'Error during context query. Please check JS console logs.',
|
|
status: err.status,
|
|
statusText: err.statusText,
|
|
};
|
|
throw error;
|
|
})
|
|
)
|
|
);
|
|
};
|
|
|
|
/**
|
|
* Implemented for DataSourceWithSupplementaryQueriesSupport.
|
|
* It generates a DataQueryRequest for a specific supplementary query type.
|
|
* @returns A DataQueryRequest for the supplementary queries or undefined if not supported.
|
|
*/
|
|
getSupplementaryRequest(
|
|
type: SupplementaryQueryType,
|
|
request: DataQueryRequest<ElasticsearchQuery>
|
|
): DataQueryRequest<ElasticsearchQuery> | undefined {
|
|
switch (type) {
|
|
case SupplementaryQueryType.LogsVolume:
|
|
return this.getLogsVolumeDataProvider(request);
|
|
case SupplementaryQueryType.LogsSample:
|
|
return this.getLogsSampleDataProvider(request);
|
|
default:
|
|
return undefined;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Implemented for DataSourceWithSupplementaryQueriesSupport.
|
|
* It returns the supplementary types that the data source supports.
|
|
* @returns An array of supported supplementary query types.
|
|
*/
|
|
getSupportedSupplementaryQueryTypes(): SupplementaryQueryType[] {
|
|
return [SupplementaryQueryType.LogsVolume, SupplementaryQueryType.LogsSample];
|
|
}
|
|
|
|
/**
|
|
* Implemented for DataSourceWithSupplementaryQueriesSupport.
|
|
* It retrieves supplementary queries based on the provided options and ES query.
|
|
* @returns A supplemented ES query or undefined if unsupported.
|
|
*/
|
|
getSupplementaryQuery(options: SupplementaryQueryOptions, query: ElasticsearchQuery): ElasticsearchQuery | undefined {
|
|
let isQuerySuitable = false;
|
|
|
|
if (query.hide) {
|
|
return undefined;
|
|
}
|
|
|
|
switch (options.type) {
|
|
case SupplementaryQueryType.LogsVolume:
|
|
// it has to be a logs-producing range-query
|
|
isQuerySuitable = !!(query.metrics?.length === 1 && query.metrics[0].type === 'logs');
|
|
if (!isQuerySuitable) {
|
|
return undefined;
|
|
}
|
|
const bucketAggs: BucketAggregation[] = [];
|
|
const timeField = this.timeField ?? '@timestamp';
|
|
|
|
if (this.logLevelField) {
|
|
bucketAggs.push({
|
|
id: '2',
|
|
type: 'terms',
|
|
settings: {
|
|
min_doc_count: '0',
|
|
size: '0',
|
|
order: 'desc',
|
|
orderBy: '_count',
|
|
missing: LogLevel.unknown,
|
|
},
|
|
field: this.logLevelField,
|
|
});
|
|
}
|
|
bucketAggs.push({
|
|
id: '3',
|
|
type: 'date_histogram',
|
|
settings: {
|
|
interval: 'auto',
|
|
min_doc_count: '0',
|
|
trimEdges: '0',
|
|
},
|
|
field: timeField,
|
|
});
|
|
|
|
return {
|
|
refId: `${REF_ID_STARTER_LOG_VOLUME}${query.refId}`,
|
|
query: query.query,
|
|
metrics: [{ type: 'count', id: '1' }],
|
|
timeField,
|
|
bucketAggs,
|
|
};
|
|
|
|
case SupplementaryQueryType.LogsSample:
|
|
isQuerySuitable = isTimeSeriesQuery(query);
|
|
|
|
if (!isQuerySuitable) {
|
|
return undefined;
|
|
}
|
|
|
|
if (options.limit) {
|
|
return {
|
|
refId: `${REF_ID_STARTER_LOG_SAMPLE}${query.refId}`,
|
|
query: query.query,
|
|
metrics: [{ type: 'logs', id: '1', settings: { limit: options.limit.toString() } }],
|
|
};
|
|
}
|
|
|
|
return {
|
|
refId: `${REF_ID_STARTER_LOG_SAMPLE}${query.refId}`,
|
|
query: query.query,
|
|
metrics: [{ type: 'logs', id: '1' }],
|
|
};
|
|
|
|
default:
|
|
return undefined;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Private method used in the `getDataProvider` for DataSourceWithSupplementaryQueriesSupport, specifically for Logs volume queries.
|
|
* @returns An Observable of DataQueryResponse or undefined if no suitable queries are found.
|
|
*/
|
|
private getLogsVolumeDataProvider(
|
|
request: DataQueryRequest<ElasticsearchQuery>
|
|
): DataQueryRequest<ElasticsearchQuery> | undefined {
|
|
const logsVolumeRequest = cloneDeep(request);
|
|
const targets = logsVolumeRequest.targets
|
|
.map((target) => this.getSupplementaryQuery({ type: SupplementaryQueryType.LogsVolume }, target))
|
|
.filter((query): query is ElasticsearchQuery => !!query);
|
|
|
|
if (!targets.length) {
|
|
return undefined;
|
|
}
|
|
|
|
return { ...logsVolumeRequest, targets };
|
|
}
|
|
|
|
/**
|
|
* Private method used in the `getDataProvider` for DataSourceWithSupplementaryQueriesSupport, specifically for Logs sample queries.
|
|
* @returns An Observable of DataQueryResponse or undefined if no suitable queries are found.
|
|
*/
|
|
private getLogsSampleDataProvider(
|
|
request: DataQueryRequest<ElasticsearchQuery>
|
|
): DataQueryRequest<ElasticsearchQuery> | undefined {
|
|
const logsSampleRequest = cloneDeep(request);
|
|
const targets = logsSampleRequest.targets;
|
|
const queries = targets.map((query) => {
|
|
return this.getSupplementaryQuery({ type: SupplementaryQueryType.LogsSample, limit: 100 }, query);
|
|
});
|
|
const elasticQueries = queries.filter((query): query is ElasticsearchQuery => !!query);
|
|
|
|
if (!elasticQueries.length) {
|
|
return undefined;
|
|
}
|
|
return { ...logsSampleRequest, targets: elasticQueries };
|
|
}
|
|
|
|
/**
|
|
* Required by DataSourceApi. It executes queries based on the provided DataQueryRequest.
|
|
* @returns An Observable of DataQueryResponse containing the query results.
|
|
*/
|
|
query(request: DataQueryRequest<ElasticsearchQuery>): Observable<DataQueryResponse> {
|
|
const start = new Date();
|
|
return super.query(request).pipe(
|
|
tap((response) => trackQuery(response, request, start)),
|
|
map((response) => {
|
|
response.data.forEach((dataFrame) => {
|
|
enhanceDataFrameWithDataLinks(dataFrame, this.dataLinks);
|
|
});
|
|
return response;
|
|
})
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Filters out queries that are hidden. Used when running queries through backend.
|
|
* It is called from DatasourceWithBackend.
|
|
* @returns `true` if the query is not hidden.
|
|
*/
|
|
filterQuery(query: ElasticsearchQuery): boolean {
|
|
if (query.hide) {
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
// Private method used in the `getFields` to check if a field is a metadata field.
|
|
private isMetadataField(fieldName: string) {
|
|
return ELASTIC_META_FIELDS.includes(fieldName);
|
|
}
|
|
|
|
/**
|
|
* Get the list of the fields to display in query editor or used for example in getTagKeys.
|
|
* @todo instead of being a string, this could be a custom type representing all the elastic types
|
|
* @fixme This doesn't seem to return actual MetricFindValues, we should either change the return type
|
|
* or fix the implementation.
|
|
*/
|
|
getFields(type?: string[], range?: TimeRange): Observable<MetricFindValue[]> {
|
|
if (config.featureToggles.elasticsearchCrossClusterSearch) {
|
|
return this.getFieldsCrossCluster(type, range);
|
|
}
|
|
|
|
const typeMap: Record<string, string> = {
|
|
float: 'number',
|
|
double: 'number',
|
|
integer: 'number',
|
|
long: 'number',
|
|
date: 'date',
|
|
date_nanos: 'date',
|
|
string: 'string',
|
|
text: 'string',
|
|
scaled_float: 'number',
|
|
nested: 'nested',
|
|
histogram: 'number',
|
|
};
|
|
return this.requestAllIndices(range).pipe(
|
|
map((result) => {
|
|
const shouldAddField = (obj: any, key: string) => {
|
|
if (this.isMetadataField(key)) {
|
|
return false;
|
|
}
|
|
|
|
if (!type || type.length === 0) {
|
|
return true;
|
|
}
|
|
|
|
// equal query type filter, or via type map translation
|
|
return type.includes(obj.type) || type.includes(typeMap[obj.type]);
|
|
};
|
|
|
|
// Store subfield names: [system, process, cpu, total] -> system.process.cpu.total
|
|
const fieldNameParts: string[] = [];
|
|
const fields: Record<string, { text: string; type: string }> = {};
|
|
|
|
function getFieldsRecursively(obj: any) {
|
|
for (const key in obj) {
|
|
const subObj = obj[key];
|
|
|
|
// Check mapping field for nested fields
|
|
if (isObject(subObj.properties)) {
|
|
fieldNameParts.push(key);
|
|
getFieldsRecursively(subObj.properties);
|
|
}
|
|
|
|
if (isObject(subObj.fields)) {
|
|
fieldNameParts.push(key);
|
|
getFieldsRecursively(subObj.fields);
|
|
}
|
|
|
|
if (isString(subObj.type)) {
|
|
const fieldName = fieldNameParts.concat(key).join('.');
|
|
|
|
// Hide meta-fields and check field type
|
|
if (shouldAddField(subObj, key)) {
|
|
fields[fieldName] = {
|
|
text: fieldName,
|
|
type: subObj.type,
|
|
};
|
|
}
|
|
}
|
|
}
|
|
fieldNameParts.pop();
|
|
}
|
|
|
|
for (const indexName in result) {
|
|
const index = result[indexName];
|
|
if (index && index.mappings) {
|
|
const mappings = index.mappings;
|
|
|
|
const properties = mappings.properties;
|
|
getFieldsRecursively(properties);
|
|
}
|
|
}
|
|
|
|
// transform to array
|
|
return _map(fields, (value) => {
|
|
return value;
|
|
});
|
|
})
|
|
);
|
|
}
|
|
|
|
getFieldsCrossCluster(type?: string[], range?: TimeRange): Observable<MetricFindValue[]> {
|
|
const typeMap: Record<string, string> = {
|
|
float: 'number',
|
|
double: 'number',
|
|
integer: 'number',
|
|
long: 'number',
|
|
date: 'date',
|
|
date_nanos: 'date',
|
|
string: 'string',
|
|
text: 'string',
|
|
scaled_float: 'number',
|
|
nested: 'nested',
|
|
histogram: 'number',
|
|
};
|
|
return this.requestAllIndices(range).pipe(
|
|
map((result) => {
|
|
interface FieldInfo {
|
|
metadata_field: string;
|
|
}
|
|
const shouldAddField = (obj: Record<string, Record<string, FieldInfo>>) => {
|
|
// equal query type filter, or via type map translation
|
|
for (const objField in obj) {
|
|
if (objField === 'object') {
|
|
continue;
|
|
}
|
|
if (obj[objField].metadata_field) {
|
|
continue;
|
|
}
|
|
|
|
if (!type || type.length === 0) {
|
|
return true;
|
|
}
|
|
|
|
if (type.includes(objField) || type.includes(typeMap[objField])) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
};
|
|
|
|
const fields: Record<string, { text: string; type: string }> = {};
|
|
|
|
const fieldsData = result['fields'];
|
|
for (const fieldName in fieldsData) {
|
|
const fieldInfo = fieldsData[fieldName];
|
|
if (shouldAddField(fieldInfo)) {
|
|
fields[fieldName] = {
|
|
text: fieldName,
|
|
type: fieldInfo.type,
|
|
};
|
|
}
|
|
}
|
|
|
|
// transform to array
|
|
return _map(fields, (value) => {
|
|
return value;
|
|
});
|
|
})
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Get values for a given field.
|
|
* Used for example in getTagValues.
|
|
*/
|
|
getTerms(
|
|
queryDef: TermsQuery,
|
|
range = getDefaultTimeRange(),
|
|
isTagValueQuery = false
|
|
): Observable<MetricFindValue[]> {
|
|
const searchType = 'query_then_fetch';
|
|
const header = this.getQueryHeader(searchType, range.from, range.to);
|
|
let esQuery = JSON.stringify(this.queryBuilder.getTermsQuery(queryDef));
|
|
|
|
esQuery = esQuery.replace(/\$timeFrom/g, range.from.valueOf().toString());
|
|
esQuery = esQuery.replace(/\$timeTo/g, range.to.valueOf().toString());
|
|
esQuery = header + '\n' + esQuery + '\n';
|
|
|
|
const url = this.getMultiSearchUrl();
|
|
|
|
return from(this.postResourceRequest(url, esQuery)).pipe(
|
|
map((res: unknown) => {
|
|
if (!isElasticsearchResponseWithAggregations(res)) {
|
|
return [];
|
|
}
|
|
if (!res || !res.responses[0].aggregations) {
|
|
return [];
|
|
}
|
|
|
|
const buckets = res.responses[0].aggregations['1'].buckets;
|
|
return _map(buckets, (bucket) => {
|
|
const keyString = String(bucket.key);
|
|
return {
|
|
text: bucket.key_as_string || keyString,
|
|
value: isTagValueQuery ? keyString : bucket.key,
|
|
};
|
|
});
|
|
})
|
|
);
|
|
}
|
|
|
|
// Method used to create URL that includes correct parameters based on ES data source config.
|
|
getMultiSearchUrl() {
|
|
const searchParams = new URLSearchParams();
|
|
|
|
if (this.maxConcurrentShardRequests) {
|
|
searchParams.append('max_concurrent_shard_requests', `${this.maxConcurrentShardRequests}`);
|
|
}
|
|
|
|
if (this.includeFrozen) {
|
|
searchParams.append('ignore_throttled', 'false');
|
|
}
|
|
|
|
return ('_msearch?' + searchParams.toString()).replace(/\?$/, '');
|
|
}
|
|
|
|
/**
|
|
* Implemented as part of DataSourceAPI and used for template variable queries.
|
|
* @returns A Promise that resolves to an array of results from the metric find query.
|
|
*/
|
|
metricFindQuery(query: string, options?: { range: TimeRange }): Promise<MetricFindValue[]> {
|
|
const range = options?.range;
|
|
const parsedQuery = JSON.parse(query);
|
|
if (query) {
|
|
if (parsedQuery.find === 'fields') {
|
|
parsedQuery.type = this.interpolateLuceneQuery(parsedQuery.type);
|
|
return lastValueFrom(this.getFields(parsedQuery.type, range));
|
|
}
|
|
|
|
if (parsedQuery.find === 'terms') {
|
|
parsedQuery.field = this.interpolateLuceneQuery(parsedQuery.field);
|
|
parsedQuery.query = this.interpolateLuceneQuery(parsedQuery.query);
|
|
return lastValueFrom(this.getTerms(parsedQuery, range));
|
|
}
|
|
}
|
|
|
|
return Promise.resolve([]);
|
|
}
|
|
|
|
/**
|
|
* Implemented as part of the DataSourceAPI. Retrieves tag keys that can be used for ad-hoc filtering.
|
|
* @returns A Promise that resolves to an array of label names represented as MetricFindValue objects.
|
|
*/
|
|
getTagKeys() {
|
|
return lastValueFrom(this.getFields());
|
|
}
|
|
|
|
/**
|
|
* Implemented as part of the DataSourceAPI. Retrieves tag values that can be used for ad-hoc filtering.
|
|
* @returns A Promise that resolves to an array of label values represented as MetricFindValue objects
|
|
*/
|
|
getTagValues(options: DataSourceGetTagValuesOptions<ElasticsearchQuery>) {
|
|
return lastValueFrom(this.getTerms({ field: options.key }, options.timeRange, true));
|
|
}
|
|
|
|
/**
|
|
* Implemented as part of the DataSourceAPI.
|
|
* Used by alerting to check if query contains template variables.
|
|
*/
|
|
targetContainsTemplate(target: ElasticsearchQuery) {
|
|
if (this.templateSrv.containsTemplate(target.query) || this.templateSrv.containsTemplate(target.alias)) {
|
|
return true;
|
|
}
|
|
|
|
if (target.bucketAggs) {
|
|
for (const bucketAgg of target.bucketAggs) {
|
|
if (isBucketAggregationWithField(bucketAgg) && this.templateSrv.containsTemplate(bucketAgg.field)) {
|
|
return true;
|
|
}
|
|
if (this.objectContainsTemplate(bucketAgg.settings)) {
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (target.metrics) {
|
|
for (const metric of target.metrics) {
|
|
if (!isMetricAggregationWithField(metric)) {
|
|
continue;
|
|
}
|
|
if (metric.field && this.templateSrv.containsTemplate(metric.field)) {
|
|
return true;
|
|
}
|
|
if (metric.settings && this.objectContainsTemplate(metric.settings)) {
|
|
return true;
|
|
}
|
|
if (isMetricAggregationWithMeta(metric) && this.objectContainsTemplate(metric.meta)) {
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
// Private method used in the `targetContainsTemplate` to check if an object contains template variables.
|
|
private objectContainsTemplate(obj: any) {
|
|
if (typeof obj === 'string') {
|
|
return this.templateSrv.containsTemplate(obj);
|
|
}
|
|
if (!obj || typeof obj !== 'object') {
|
|
return false;
|
|
}
|
|
|
|
for (const key in obj) {
|
|
if (Array.isArray(obj[key])) {
|
|
for (const item of obj[key]) {
|
|
if (this.objectContainsTemplate(item)) {
|
|
return true;
|
|
}
|
|
}
|
|
} else if (this.objectContainsTemplate(obj[key])) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Implemented for `DataSourceWithToggleableQueryFiltersSupport`. Toggles a filter on or off based on the provided filter action.
|
|
* It is used for example in Explore to toggle fields on and off trough log details.
|
|
* @returns A new ES query with the filter toggled as specified.
|
|
*/
|
|
toggleQueryFilter(query: ElasticsearchQuery, filter: ToggleFilterAction): ElasticsearchQuery {
|
|
let expression = query.query ?? '';
|
|
switch (filter.type) {
|
|
case 'FILTER_FOR': {
|
|
// This gives the user the ability to toggle a filter on and off.
|
|
expression = queryHasFilter(expression, filter.options.key, filter.options.value)
|
|
? removeFilterFromQuery(expression, filter.options.key, filter.options.value)
|
|
: addFilterToQuery(expression, filter.options.key, filter.options.value);
|
|
break;
|
|
}
|
|
case 'FILTER_OUT': {
|
|
// If the opposite filter is present, remove it before adding the new one.
|
|
if (queryHasFilter(expression, filter.options.key, filter.options.value)) {
|
|
expression = removeFilterFromQuery(expression, filter.options.key, filter.options.value);
|
|
}
|
|
expression = addFilterToQuery(expression, filter.options.key, filter.options.value, '-');
|
|
break;
|
|
}
|
|
}
|
|
|
|
return { ...query, query: expression };
|
|
}
|
|
|
|
/**
|
|
* Implemented for `DataSourceWithToggleableQueryFiltersSupport`. Checks if a query expression contains a filter based on the provided filter options.
|
|
* @returns A boolean value indicating whether the filter exists in the query expression.
|
|
*/
|
|
queryHasFilter(query: ElasticsearchQuery, options: QueryFilterOptions): boolean {
|
|
let expression = query.query ?? '';
|
|
return queryHasFilter(expression, options.key, options.value);
|
|
}
|
|
|
|
/**
|
|
* Implemented as part of `DataSourceWithQueryModificationSupport`. Used to modify a query based on the provided action.
|
|
* It is used, for example, in the Query Builder to apply hints such as parsers, operations, etc.
|
|
* @returns A new ES query with the specified modification applied.
|
|
*/
|
|
modifyQuery(query: ElasticsearchQuery, action: QueryFixAction): ElasticsearchQuery {
|
|
if (!action.options) {
|
|
return query;
|
|
}
|
|
|
|
let expression = query.query ?? '';
|
|
switch (action.type) {
|
|
case 'ADD_FILTER': {
|
|
expression = addFilterToQuery(expression, action.options.key, action.options.value);
|
|
break;
|
|
}
|
|
case 'ADD_FILTER_OUT': {
|
|
expression = addFilterToQuery(expression, action.options.key, action.options.value, '-');
|
|
break;
|
|
}
|
|
case 'ADD_STRING_FILTER': {
|
|
expression = addStringFilterToQuery(expression, action.options.value);
|
|
break;
|
|
}
|
|
case 'ADD_STRING_FILTER_OUT': {
|
|
expression = addStringFilterToQuery(expression, action.options.value, false);
|
|
break;
|
|
}
|
|
}
|
|
|
|
return { ...query, query: expression };
|
|
}
|
|
|
|
/**
|
|
* Implemented as part of `DataSourceWithQueryModificationSupport`. Returns a list of operation
|
|
* types that are supported by `modifyQuery()`.
|
|
*/
|
|
getSupportedQueryModifications() {
|
|
return ['ADD_FILTER', 'ADD_FILTER_OUT', 'ADD_STRING_FILTER', 'ADD_STRING_FILTER_OUT'];
|
|
}
|
|
|
|
/**
|
|
* Adds ad hoc filters to a query expression, handling proper escaping of filter values.
|
|
* @returns The query expression with ad hoc filters and correctly escaped values.
|
|
*/
|
|
addAdHocFilters(query: string, adhocFilters?: AdHocVariableFilter[]) {
|
|
if (!adhocFilters) {
|
|
return query;
|
|
}
|
|
let finalQuery = query;
|
|
adhocFilters.forEach((filter) => {
|
|
finalQuery = addAddHocFilter(finalQuery, filter, this.logLevelField);
|
|
});
|
|
|
|
return finalQuery;
|
|
}
|
|
|
|
/**
|
|
* Applies template variables and add hoc filters to a query. Used when running queries through backend.
|
|
* It is called from DatasourceWithBackend.
|
|
* @returns A modified ES query with template variables and ad hoc filters applied.
|
|
*/
|
|
applyTemplateVariables(
|
|
query: ElasticsearchQuery,
|
|
scopedVars: ScopedVars,
|
|
filters?: AdHocVariableFilter[]
|
|
): ElasticsearchQuery {
|
|
// We need a separate interpolation format for lucene queries, therefore we first interpolate any
|
|
// lucene query string and then everything else
|
|
const interpolateBucketAgg = (bucketAgg: BucketAggregation): BucketAggregation => {
|
|
if (bucketAgg.type === 'filters') {
|
|
return {
|
|
...bucketAgg,
|
|
settings: {
|
|
...bucketAgg.settings,
|
|
filters: bucketAgg.settings?.filters?.map((filter) => ({
|
|
...filter,
|
|
query: this.interpolateLuceneQuery(filter.query, scopedVars) || '*',
|
|
})),
|
|
},
|
|
};
|
|
}
|
|
|
|
return bucketAgg;
|
|
};
|
|
|
|
const expandedQuery = {
|
|
...query,
|
|
datasource: this.getRef(),
|
|
query: this.addAdHocFilters(this.interpolateLuceneQuery(query.query || '', scopedVars), filters),
|
|
bucketAggs: query.bucketAggs?.map(interpolateBucketAgg),
|
|
};
|
|
|
|
const finalQuery = JSON.parse(this.templateSrv.replace(JSON.stringify(expandedQuery), scopedVars));
|
|
return finalQuery;
|
|
}
|
|
|
|
// Private method used in the `getDatabaseVersion` to get the database version from the Elasticsearch API.
|
|
private getDatabaseVersionUncached(): Promise<SemVer | null> {
|
|
// we want this function to never fail
|
|
const getDbVersionObservable = from(this.getResourceRequest(''));
|
|
return lastValueFrom(getDbVersionObservable).then(
|
|
(data) => {
|
|
const versionNumber = data?.version?.number;
|
|
if (typeof versionNumber !== 'string') {
|
|
return null;
|
|
}
|
|
try {
|
|
return new SemVer(versionNumber);
|
|
} catch (error) {
|
|
console.error(error);
|
|
return null;
|
|
}
|
|
},
|
|
(error) => {
|
|
console.error(error);
|
|
return null;
|
|
}
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Method used to get the database version from cache or from the Elasticsearch API.
|
|
* Elasticsearch data source supports only certain versions of Elasticsearch and we
|
|
* want to check the version and notify the user if the version is not supported.
|
|
* */
|
|
async getDatabaseVersion(useCachedData = true): Promise<SemVer | null> {
|
|
if (useCachedData) {
|
|
const cached = this.databaseVersion;
|
|
if (cached != null) {
|
|
return cached;
|
|
}
|
|
}
|
|
|
|
const freshDatabaseVersion = await this.getDatabaseVersionUncached();
|
|
this.databaseVersion = freshDatabaseVersion;
|
|
return freshDatabaseVersion;
|
|
}
|
|
|
|
// private method used in the `getLogRowContext` to create a log context data request.
|
|
private makeLogContextDataRequest = (row: LogRowModel, options?: LogRowContextOptions) => {
|
|
const direction = options?.direction || LogRowContextQueryDirection.Backward;
|
|
const logQuery: Logs = {
|
|
type: 'logs',
|
|
id: '1',
|
|
settings: {
|
|
limit: options?.limit ? options?.limit.toString() : '10',
|
|
// Sorting of results in the context query
|
|
sortDirection: direction === LogRowContextQueryDirection.Backward ? 'desc' : 'asc',
|
|
// Used to get the next log lines before/after the current log line using sort field of selected log line
|
|
searchAfter: row.dataFrame.fields.find((f) => f.name === 'sort')?.values[row.rowIndex] ?? [row.timeEpochMs],
|
|
},
|
|
};
|
|
|
|
const query: ElasticsearchQuery = {
|
|
refId: `log-context-${row.dataFrame.refId}-${direction}`,
|
|
metrics: [logQuery],
|
|
query: '',
|
|
};
|
|
|
|
const timeRange = createContextTimeRange(row.timeEpochMs, direction, this.intervalPattern);
|
|
const range = {
|
|
from: timeRange.from,
|
|
to: timeRange.to,
|
|
raw: timeRange,
|
|
};
|
|
|
|
const interval = rangeUtil.calculateInterval(range, 1);
|
|
|
|
const contextRequest: DataQueryRequest<ElasticsearchQuery> = {
|
|
requestId: `log-context-request-${row.dataFrame.refId}-${options?.direction}`,
|
|
targets: [query],
|
|
interval: interval.interval,
|
|
intervalMs: interval.intervalMs,
|
|
range,
|
|
scopedVars: {},
|
|
timezone: 'UTC',
|
|
app: CoreApp.Explore,
|
|
startTime: Date.now(),
|
|
hideFromInspector: true,
|
|
};
|
|
return contextRequest;
|
|
};
|
|
}
|
|
|
|
// Function to enhance the data frame with data links configured in the data source settings.
|
|
export function enhanceDataFrameWithDataLinks(dataFrame: DataFrame, dataLinks: DataLinkConfig[]) {
|
|
if (!dataLinks.length) {
|
|
return;
|
|
}
|
|
|
|
for (const field of dataFrame.fields) {
|
|
const linksToApply = dataLinks.filter((dataLink) => new RegExp(dataLink.field).test(field.name));
|
|
|
|
if (linksToApply.length === 0) {
|
|
continue;
|
|
}
|
|
|
|
field.config = field.config || {};
|
|
field.config.links = [...(field.config.links || [], linksToApply.map(generateDataLink))];
|
|
}
|
|
}
|
|
|
|
function generateDataLink(linkConfig: DataLinkConfig): DataLink {
|
|
const dataSourceSrv = getDataSourceSrv();
|
|
|
|
if (linkConfig.datasourceUid) {
|
|
const dsSettings = dataSourceSrv.getInstanceSettings(linkConfig.datasourceUid);
|
|
|
|
return {
|
|
title: linkConfig.urlDisplayLabel || '',
|
|
url: '',
|
|
internal: {
|
|
query: { query: linkConfig.url },
|
|
datasourceUid: linkConfig.datasourceUid,
|
|
datasourceName: dsSettings?.name ?? 'Data source not found',
|
|
},
|
|
};
|
|
} else {
|
|
return {
|
|
title: linkConfig.urlDisplayLabel || '',
|
|
url: linkConfig.url,
|
|
};
|
|
}
|
|
}
|
|
|
|
function createContextTimeRange(rowTimeEpochMs: number, direction: string, intervalPattern: Interval | undefined) {
|
|
const offset = 7;
|
|
// For log context, we want to request data from 7 subsequent/previous indices
|
|
if (intervalPattern) {
|
|
const intervalInfo = intervalMap[intervalPattern];
|
|
if (direction === LogRowContextQueryDirection.Forward) {
|
|
return {
|
|
from: dateTime(rowTimeEpochMs).utc(),
|
|
to: dateTime(rowTimeEpochMs).add(offset, intervalInfo.amount).utc().startOf(intervalInfo.startOf),
|
|
};
|
|
} else {
|
|
return {
|
|
from: dateTime(rowTimeEpochMs).subtract(offset, intervalInfo.amount).utc().startOf(intervalInfo.startOf),
|
|
to: dateTime(rowTimeEpochMs).utc(),
|
|
};
|
|
}
|
|
// If we don't have an interval pattern, we can't do this, so we just request data from 7h before/after
|
|
} else {
|
|
if (direction === LogRowContextQueryDirection.Forward) {
|
|
return {
|
|
from: dateTime(rowTimeEpochMs).utc(),
|
|
to: dateTime(rowTimeEpochMs).add(offset, 'hours').utc(),
|
|
};
|
|
} else {
|
|
return {
|
|
from: dateTime(rowTimeEpochMs).subtract(offset, 'hours').utc(),
|
|
to: dateTime(rowTimeEpochMs).utc(),
|
|
};
|
|
}
|
|
}
|
|
}
|