@mx-interface/mtconnect-ts/dist/json_parser_v2.js

MTConnect client library for TypeScript

import * as JSONPath from 'jsonpath-plus';

class ProtocolError extends Error {
}

class JsonParserV2 {
	constructor() {
	}

	devices(probe, fun) {
		const devices = JSONPath.JSONPath({
			path: "$..Devices.Device.*",
			json: probe
		});
		console.debug(devices);
		return devices.map(fun);
	}

	components(doc, fun) {
		const obj = doc.Components;
		if (obj) {
			const components = Object.keys(obj).map(k => {
				return obj[k].map(v => fun(k, v));
			}).flat();
			return components;
		} else {
			return [];
		}
	}

	dataItems(doc, fun) {
		const obj = doc.DataItems;
		if (obj) {
			const items = obj.DataItem.map(v => {
				return fun(v);
			});
			return items;
		} else {
			return null;
		}
	}

	componentRelationships(doc, fun) {
		if (doc.ComponentRelationship) {
			return doc.ComponentRelationship.map(fun);
		} else {
			return [];
		}
	}

	coordinateSystems(doc, fun) {
		if (doc.CoordinateSystem) {
			return doc.CoordinateSystem.map(fun);
		} else {
			return [];
		}
	}

	observations(data, fun) {
		const values = JSONPath.JSONPath({ path: '$..ComponentStream.[Events,Samples,Condition]', json: data });
		values.forEach(v => {
			Object.entries(v).forEach(n => {
				n[1].forEach(t => fun(n[0], t));
			});
		});
	}
}

export { JsonParserV2 };