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import { Datasource, DatasourceConnector, QueryType } from '../connectors';
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import { connectorFactory } from '../connectors/connector_factory';
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import { QueryService } from '../services/query_service/base';
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import { queryServiceFactory } from '../services/query_service/query_service_factory';
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export class QueryConfig {
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queryType: QueryType;
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datasource: Datasource;
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// TODO: Target type (depends on datasource type)
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targets: any[];
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private _datasourceConnector?: DatasourceConnector;
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private _queryService?: QueryService;
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constructor(queryType: QueryType, datasource: Datasource, targets: any[]) {
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if(queryType === undefined) {
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throw new Error('queryType is undefined');
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}
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if(datasource === undefined) {
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throw new Error('datasource is undefined');
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}
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if(targets === undefined) {
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throw new Error('targets is undefined');
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}
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this.queryType = queryType;
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this.datasource = datasource;
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this.targets = targets;
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}
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get datasourceConnector(): DatasourceConnector {
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if(this._datasourceConnector === undefined) {
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this._datasourceConnector = connectorFactory(this);
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}
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return this._datasourceConnector;
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}
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get queryService(): QueryService {
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if(this._queryService === undefined) {
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this._queryService = queryServiceFactory(this);
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}
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return this._queryService;
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}
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public toObject() {
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return {
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queryType: this.queryType,
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datasource: this.datasource,
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targets: this.targets,
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};
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}
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static fromObject(obj: any): QueryConfig {
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if(obj === undefined) {
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throw new Error('obj is undefined');
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}
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return new QueryConfig(
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obj.queryType,
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obj.datasource,
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obj.targets,
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);
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}
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}
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