knxultimate
Version:
KNX IP protocol implementation for Node. This is the ENGINE of Node-Red KNX-Ultimate node.
63 lines • 2.65 kB
JavaScript
;
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const KNXConstants_1 = require("./KNXConstants");
const KNXPacket_1 = __importDefault(require("./KNXPacket"));
const DeviceInfo_1 = __importDefault(require("./DeviceInfo"));
const ServiceFamilies_1 = __importDefault(require("./ServiceFamilies"));
const HPAI_1 = __importDefault(require("./HPAI"));
class KNXSearchResponse extends KNXPacket_1.default {
constructor(hpai, deviceInfo, serviceFamilies) {
super(KNXConstants_1.KNX_CONSTANTS.SEARCH_RESPONSE, hpai.length + deviceInfo.length + serviceFamilies.length);
this.hpai = hpai;
this.deviceInfo = deviceInfo;
this.serviceFamilies = serviceFamilies;
}
static createFromBuffer(buffer, offset = 0) {
const hpai = HPAI_1.default.createFromBuffer(buffer, offset);
offset += hpai.length;
let deviceInfo;
let serviceFamilies;
let foundDevice = false;
let foundServices = false;
while (offset + 2 <= buffer.length &&
(!foundDevice || !foundServices)) {
const len = buffer.readUInt8(offset);
if (len < 2 || offset + len > buffer.length)
break;
const type = buffer.readUInt8(offset + 1);
if (!foundDevice && type === KNXConstants_1.KNX_CONSTANTS.DEVICE_INFO) {
deviceInfo = DeviceInfo_1.default.createFromBuffer(buffer, offset);
offset += deviceInfo.length;
foundDevice = true;
continue;
}
if (!foundServices && type === KNXConstants_1.KNX_CONSTANTS.SUPP_SVC_FAMILIES) {
serviceFamilies = ServiceFamilies_1.default.createFromBuffer(buffer, offset);
offset += serviceFamilies.length;
foundServices = true;
continue;
}
offset += len;
}
if (!foundDevice) {
throw new Error('KNXSearchResponse: DEVICE_INFO DIB not found');
}
if (!foundServices) {
serviceFamilies = new ServiceFamilies_1.default();
}
return new KNXSearchResponse(hpai, deviceInfo, serviceFamilies);
}
toBuffer() {
return Buffer.concat([
this.header.toBuffer(),
this.hpai.toBuffer(),
this.deviceInfo.toBuffer(),
this.serviceFamilies.toBuffer(),
]);
}
}
exports.default = KNXSearchResponse;
//# sourceMappingURL=KNXSearchResponse.js.map