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Signed-off-by: Kawika Avilla <[email protected]>
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97 changes: 97 additions & 0 deletions
97
src/plugins/data/public/query/query_string/dataset_service/dataset_service.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,97 @@ | ||
| /* | ||
| * Copyright OpenSearch Contributors | ||
| * SPDX-License-Identifier: Apache-2.0 | ||
| */ | ||
|
|
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| import { CoreStart, SavedObjectsClientContract } from 'opensearch-dashboards/public'; | ||
| import { Dataset, UI_SETTINGS, DataStructure, IndexPatternSpec } from 'src/plugins/data/common'; | ||
| import { DatasetTypeConfig } from '../dataset_manager'; | ||
| import { getIndexPatterns } from '../../../services'; | ||
|
|
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| export class DatasetService { | ||
| private defaultDataset?: Dataset; | ||
| private typesRegistry: Map<string, DatasetTypeConfig> = new Map(); | ||
|
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| constructor(private readonly uiSettings: CoreStart['uiSettings']) {} | ||
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| public async init(): Promise<void> { | ||
| if (!this.uiSettings.get(UI_SETTINGS.QUERY_ENHANCEMENTS_ENABLED)) return; | ||
| this.defaultDataset = await this.fetchDefaultDataset(); | ||
| } | ||
|
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| public registerType(handlerConfig: DatasetTypeConfig): void { | ||
| this.typesRegistry.set(handlerConfig.id, handlerConfig); | ||
| } | ||
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| public getType(type: string): DatasetTypeConfig | undefined { | ||
| return this.typesRegistry.get(type); | ||
| } | ||
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| public getDefault(): Dataset | undefined { | ||
| return this.defaultDataset; | ||
| } | ||
|
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| public async cacheDataset(dataset: Dataset): Promise<void> { | ||
| const type = this.getType(dataset.type); | ||
| if (dataset) { | ||
| const spec = { | ||
| ...dataset, | ||
| fields: await type?.fetchFields(dataset), | ||
| dataSourceRef: dataset.dataSource | ||
| ? { | ||
| id: dataset.dataSource.id!, | ||
| name: dataset.dataSource.title, | ||
| type: dataset.dataSource.type, | ||
| } | ||
| : undefined, | ||
| } as IndexPatternSpec; | ||
| const temporaryIndexPattern = await getIndexPatterns().create(spec, true); | ||
| getIndexPatterns().saveToCache(dataset.id, temporaryIndexPattern); | ||
| } | ||
| } | ||
|
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| public fetchOptions( | ||
| savedObjects: SavedObjectsClientContract, | ||
| path: DataStructure[], | ||
| dataType: string | ||
| ): Promise<DataStructure> { | ||
| // ROOT is the zero index | ||
| const type = this.typesRegistry.get(dataType); | ||
| if (!type) { | ||
| throw new Error(`No handler found for type: ${path[0]}`); | ||
| } | ||
| return type.fetch(savedObjects, path); | ||
| } | ||
|
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| public getTypes(): string[] { | ||
| return Array.from(this.typesRegistry.keys()); | ||
| } | ||
|
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| private async fetchDefaultDataset(): Promise<Dataset | undefined> { | ||
| const defaultIndexPatternId = this.uiSettings.get('defaultIndex'); | ||
| if (!defaultIndexPatternId) { | ||
| return undefined; | ||
| } | ||
|
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| const indexPattern = await getIndexPatterns().get(defaultIndexPatternId); | ||
| if (!indexPattern || !indexPattern.id) { | ||
| return undefined; | ||
| } | ||
|
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| const handler = this.typesRegistry.get('INDEX_PATTERNS'); | ||
| if (handler) { | ||
| const dataset = handler.toDataset([ | ||
| { | ||
| id: indexPattern.id, | ||
| title: indexPattern.title, | ||
| type: 'INDEX_PATTERNS', | ||
| }, | ||
| ]); | ||
| return { ...dataset, timeFieldName: indexPattern.timeFieldName }; | ||
| } | ||
|
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| return undefined; | ||
| } | ||
| } | ||
|
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| export type DatasetServiceContract = PublicMethodsOf<DatasetService>; |