85 lines
1.7 KiB
JavaScript
85 lines
1.7 KiB
JavaScript
import uuid from 'uuid/v4';
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export class Resource {
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static load(uri) {
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return this.read(uri).then((json) => {
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const instance = new this();
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return instance.fromJSON(json);
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});
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}
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static read(uri) {
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if (!this.loadCache) {
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this.loadCache = {};
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}
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if (this.loadCache[uri]) {
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return Promise.resolve(JSON.parse(JSON.stringify(this.loadCache[uri])));
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}
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if ('undefined' !== typeof window) {
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return fetch(uri).then((response) => {
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return response.json();
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}).then((json) => {
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return this.loadCache[uri] = json;
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});
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}
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else {
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return new Promise((resolve, reject) => {
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const fs = require('fs');
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const path = require('path');
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const resourcePath = path.resolve(process.cwd(), 'resource');
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fs.readFile(`${resourcePath}${uri}`, (error, buffer) => {
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if (error) {
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return reject(error);
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}
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resolve(this.loadCache[uri] = JSON.parse(buffer.toString('utf8')));
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});
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});
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}
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}
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constructor() {
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this.uri_PRIVATE = undefined;
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this.uuid_PRIVATE = undefined;
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this.instanceUuid_PRIVATE = uuid();
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}
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fromJSON({uri, uuid}) {
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this.uri_PRIVATE = uri;
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this.uuid_PRIVATE = uuid;
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return this;
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}
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get instanceUuid() {
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return this.instanceUuid_PRIVATE;
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}
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regenerateUuid() {
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this.uuid_PRIVATE = uuid();
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}
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get uuid() {
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return this.uuid_PRIVATE;
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}
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set uuid(uuid) {
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this.uuid_PRIVATE = uuid;
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}
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get uri() {
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return this.uri_PRIVATE;
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}
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set uri(uri) {
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this.uri_PRIVATE = uri;
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}
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toJSON() {
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return {
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uuid: this.uuid_PRIVATE,
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uri: this.uri_PRIVATE,
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};
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}
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}
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