76 lines
2.5 KiB
TypeScript
76 lines
2.5 KiB
TypeScript
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/**
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* @author Martin Karkowski
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* @email m.karkowski@zema.de
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* @create date 2021-11-12 12:25:30
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* @modify date 2021-11-12 12:25:30
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* @desc [description]
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*/
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import { memoize } from "lodash";
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import { deepClone, flattenObject } from "../helpers/objectMethods";
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import { comparePatternAndPath as _comparePatternAndPath, containsWildcards, MULTI_LEVEL_WILDCARD } from "../helpers/pathMatchingMethods";
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import { IDataPubSubSystem, IEventAdditionalData, INopeObservable, INopeTopicWithDirectAccess } from "../types/nope/index";
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import { PubSubSystemBase } from "./nopePubSubSystem";
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// Create a memoized function for the pattern matching (its way faster)
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const comparePatternAndPath = memoize(
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(pattern: string, path: string) => {
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return _comparePatternAndPath(pattern, path);
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},
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(pattern: string, path: string) => {
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return `${pattern}-${path}`;
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}
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);
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export class DataPubSubSystem extends PubSubSystemBase<INopeObservable, INopeTopicWithDirectAccess> implements IDataPubSubSystem {
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/**
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* A Getter to return a COPY of the item. Outside of the system,
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* you'll never receive the original object.
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*
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* @author M.Karkowski
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* @readonly
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* @type {unknown}
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* @memberof PubSubSystemBase
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*/
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public get data(): unknown {
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return deepClone(this._data);
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}
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public pushData<T = unknown>(path: string, content: T, options: IEventAdditionalData = {}): void {
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return this._pushData(path, content, options);
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}
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// Function to pull the Last Data of the Topic
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public pullData<T = unknown, D = null>(topic: string, _default: D = null): T {
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return this._pullData<T, D>(topic, _default);
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}
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public patternbasedPullData<T = unknown, D = null>(pattern: string, _default: D = null): { path: string, data: T }[] {
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return this._patternbasedPullData<T, D>(pattern, _default);
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}
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public patternBasedPush<T = unknown>(pattern: string, content: T, options: IEventAdditionalData = {}): void {
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// To extract the data based on a Pattern,
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// we firstly, we check if we would affect the data.
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if (!containsWildcards(pattern)) {
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this.pushData(pattern, content, options);
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}
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if (pattern.includes(MULTI_LEVEL_WILDCARD)) {
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throw Error("You can only use single-level wildcards in this action");
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}
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const flattenData = flattenObject(this._data);
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for (const path of flattenData.keys()) {
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if (comparePatternAndPath(pattern, path).affectedOnSameLevel) {
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this.pushData(path, content, options);
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}
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}
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}
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protected _sendCurrentDataOnSubscription = true;
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}
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