dlms-protocol/dist/messages/GetRequest.js

DLMS Protocol parser for JavaScript

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;
require("core-js/modules/es.parse-int.js");
require("core-js/modules/es.regexp.exec.js");
require("core-js/modules/es.regexp.to-string.js");
require("core-js/modules/es.string.match.js");
require("core-js/modules/esnext.iterator.map.js");
require("core-js/modules/web.dom-collections.iterator.js");
var _MessageType = _interopRequireDefault(require("./../enum/MessageType"));
function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; }
class GetRequest {
  constructor() {
    let cosemAddress = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : null;
    let data = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : null;
    let parameters = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;
    this.setType = 0x01;
    this.invokeIdAndPriority = 0;
    this.cosemClassId = new Array(2).fill(0);
    this.cosemObjectInstanceId = new Array(6).fill(0);
    this.cosemObjectAttributeId = new Array(1).fill(0);
    this.methodInvocationParameters = 0;
    this.dlmsData = null;
    this.value = [];
    this.parameters = [];
    if (cosemAddress) {
      this.insertData(cosemAddress, data, parameters);
    }
  }
  insertData(cosemAddress) {
    let dlmsData = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : null;
    let parameters = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;
    const invokeId = Math.floor(Math.random() * 15) + 1; // Generate random invokeId
    this.invokeIdAndPriority = 0xC0 + invokeId;
    this.cosemClassId = [...cosemAddress.classId];
    this.cosemObjectInstanceId = [...cosemAddress.instanceId];
    this.cosemObjectAttributeId = [...cosemAddress.attributeId];
    if (dlmsData) {
      this.methodInvocationParameters = 1;
      this.dlmsData = dlmsData;
    } else if (parameters) {
      this.methodInvocationParameters = 1;
      this.parameters = this._stringToBytes(parameters);
    }
  }
  getBytes() {
    let relay = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;
    const result = [];
    result.push(_MessageType.default.GET_REQUEST);
    result.push(this.setType);
    result.push(this.invokeIdAndPriority);
    result.push(...this.cosemClassId);
    result.push(...this.cosemObjectInstanceId);
    result.push(...this.cosemObjectAttributeId);
    result.push(this.methodInvocationParameters);
    if (this.methodInvocationParameters === 1) {
      if (relay) {
        result.push(0x87); // Additional byte for relay
      }
      result.push(...(this.dlmsData ? this.dlmsData.rawValue : this.parameters));
    }
    this.value = [...result];
    return result;
  }
  getHexString() {
    return this.value.map(byte => byte.toString(16).toUpperCase().padStart(2, '0')).join(' ');
  }
  _stringToBytes(hexString) {
    return hexString.match(/.{1,2}/g).map(byte => parseInt(byte, 16));
  }
}
exports.default = GetRequest;