50 lines
1.8 KiB
TypeScript
50 lines
1.8 KiB
TypeScript
import { Injectable } from '@angular/core';
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import { ModelConstructor, BaseModel } from '../../shared/models/base/base-model';
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/**
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* Registeres the mapping of collection strings <--> actual types. Every Model should register itself here.
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*/
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@Injectable({
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providedIn: 'root'
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})
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export class CollectionStringModelMapperService {
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/**
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* Mapps collection strings to model constructors. Accessed by {@method registerCollectionElement} and
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* {@method getCollectionStringType}.
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*/
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private collectionStringsTypeMapping: { [collectionString: string]: ModelConstructor<BaseModel> } = {};
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/**
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* Constructor to create the NotifyService. Registers itself to the WebsocketService.
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* @param websocketService
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*/
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public constructor() {}
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/**
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* Registers the type to the collection string
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* @param collectionString
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* @param type
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*/
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public registerCollectionElement(collectionString: string, type: ModelConstructor<BaseModel>): void {
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this.collectionStringsTypeMapping[collectionString] = type;
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}
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/**
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* Returns the constructor of the requested collection or undefined, if it is not registered.
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* @param collectionString the requested collection
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*/
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public getModelConstructor(collectionString: string): ModelConstructor<BaseModel> {
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return this.collectionStringsTypeMapping[collectionString];
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}
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/**
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* Returns the collection string of a given ModelConstructor or undefined, if it is not registered.
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* @param ctor
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*/
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public getCollectionString(ctor: ModelConstructor<BaseModel>): string {
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return Object.keys(this.collectionStringsTypeMapping).find((collectionString: string) => {
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return ctor === this.collectionStringsTypeMapping[collectionString];
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});
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}
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}
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