@rr0/data/dist/AllDataService.js

RR0 data model

import { globSync } from "glob";
import { FileContents } from "@javarome/fileutil";
/**
 * Fetch RR0 data from JSON files.
 */
export class AllDataService {
    /**
     *
     * @param factories The factories to instantiate different RR0Data types.
     */
    constructor(factories) {
        this.factories = factories;
        this.pathToData = new Map();
    }
    async getFromDir(dirName, types, fileNames = this.factories.reduce((allFileNames, factory) => Array.from(new Set(allFileNames.concat(factory.fileNames))), [])) {
        const key = dirName + "$" + fileNames.join("$");
        let dataList = this.pathToData.get(key);
        if (dataList === undefined) {
            dataList = await this.readAll(dirName, fileNames);
            this.pathToData.set(key, dataList);
        }
        return dataList.filter(data => types.includes(data.type));
    }
    async read(fileName) {
        const dataFile = FileContents.read(fileName, "utf-8");
        let data;
        for (let i = 0; !data && i < this.factories.length; i++) {
            const factory = this.factories[i];
            try {
                data = factory.createFromFile(dataFile);
            }
            catch (e) {
                console.warn("Could not create a", factory.type, "from", dataFile, "because of", e);
            }
        }
        return data;
    }
    async readAll(dirName, fileNames) {
        const dataList = [];
        const p = `${dirName}/*(${fileNames.join("|")})`;
        const files = globSync(p);
        for (const file of files) {
            try {
                const dataFile = await this.read(file);
                if (dataFile) {
                    dataList.push(dataFile);
                }
                else {
                    throw new Error("No factory to handle " + dataFile.name);
                }
            }
            catch (e) {
                console.warn(`Could not create data from ${file}`, e);
            }
        }
        return dataList;
    }
}