100 lines
2.2 KiB
JavaScript
100 lines
2.2 KiB
JavaScript
/**
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* @module Ontology
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*/
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export class Ontology {
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#data;
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/**
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* @param {Object} data The parsed ontology object (from JSON)
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*/
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set data(data) {
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this.#data = data;
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}
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/**
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* @param {String} id
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*/
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getInstanceById(id) {
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return this.#data.instancesById[id];
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}
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/**
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* @returns {Array<{en: string, it: string}>} The bloody array of label objects
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*/
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getInstanceLabels() {
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const data = this.#data;
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const instances = [];
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for (const key of Object.keys(data.instancesById)) {
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instances.push(data.instancesById[key]?.label);
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}
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return instances;
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}
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}
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/**
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* @todo Temporarily returns domains and ontology labels only
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* Traverse an ontology from its JSON description
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* @param {Object} ontologyObject The parsed ontology JSON
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* @returns {Object}
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*/
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export async function traverseOntology(ontologyObject) {
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//const ontology = await loadOntology(jsonPath);
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const modules = ontologyObject.domains;
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const domains = [];
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for (const module of modules) {
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let tree = [];
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for (const classTree of module.classTrees) {
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traverseClasses(classTree, tree);
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}
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domains.push({
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id: module.label.it ?? module.label.en,
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tree
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});
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}
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return domains;
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}
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/**
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*
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* @param {Object} ontologyClass
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* @param {Array<Object>} tree
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* @param {Number} depth
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*/
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function traverseClasses(ontologyClass, tree, depth = 1) {
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const ontologyNode = {
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id: ontologyClass.id,
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label: ontologyClass.label,
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depth,
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children: [],
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};
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tree.push(ontologyNode);
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if (ontologyClass.children && Array.isArray(ontologyClass.children)) {
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for(const child of ontologyClass.children) {
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ontologyNode.children.push(
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traverseClasses(child, tree, depth + 1)
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);
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}
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}
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}
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/**
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* Load an ontology from its JSON description
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* @param {String} jsonPath The path (URI) of the ontology JSON file
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* @returns {Object}
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*/
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export async function loadOntology(jsonPath) {
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const ontology = await fetch(jsonPath)
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.then(res => res.json())
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.catch(err => console.error(err));
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return ontology;
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}
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