knxultimate
Version:
KNX IP protocol implementation for Node. This is the ENGINE of Node-Red KNX-Ultimate node.
70 lines • 2.87 kB
JavaScript
;
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const CRD_1 = __importDefault(require("./CRD"));
const HPAI_1 = __importDefault(require("./HPAI"));
const KNXConstants_1 = require("./KNXConstants");
const KNXPacket_1 = __importDefault(require("./KNXPacket"));
class KNXConnectResponse extends KNXPacket_1.default {
constructor(channelID, status, hpai, crd) {
super(KNXConstants_1.KNX_CONSTANTS.CONNECT_RESPONSE, hpai == null ? 2 : 2 + hpai.length + crd.length);
this.channelID = channelID;
this.status = status;
this.hpai = hpai;
this.crd = crd;
}
static createFromBuffer(buffer, offset = 0) {
if (offset + 2 > buffer.length) {
throw new Error('Buffer too short');
}
const channelID = buffer.readUInt8(offset++);
const status = buffer.readUInt8(offset++);
let hpai;
let crd;
if (offset < buffer.length) {
hpai = HPAI_1.default.createFromBuffer(buffer, offset);
offset += hpai.length;
crd = CRD_1.default.createFromBuffer(buffer, offset);
}
return new KNXConnectResponse(channelID, status, hpai, crd);
}
static statusToString(status) {
switch (status) {
case KNXConstants_1.KNX_CONSTANTS.E_SEQUENCE_NUMBER:
return 'Invalid Sequence Number';
case KNXConstants_1.KNX_CONSTANTS.E_CONNECTION_TYPE:
return 'Invalid Connection Type';
case KNXConstants_1.KNX_CONSTANTS.E_CONNECTION_OPTION:
return 'Invalid Connection Option';
case KNXConstants_1.KNX_CONSTANTS.E_NO_MORE_CONNECTIONS:
return 'No More Connections';
case KNXConstants_1.KNX_CONSTANTS.E_NO_MORE_UNIQUE_CONNECTIONS:
return 'No More Unique Connections';
case KNXConstants_1.KNX_CONSTANTS.E_DATA_CONNECTION:
return 'Invalid Data Connection';
case KNXConstants_1.KNX_CONSTANTS.E_KNX_CONNECTION:
return 'Invalid KNX Connection';
case KNXConstants_1.KNX_CONSTANTS.E_TUNNELING_LAYER:
return 'Invalid Tunneling Layer';
default:
return `Unknown error ${status}`;
}
}
toBuffer() {
const buffer = Buffer.alloc(2);
buffer.writeUInt8(this.channelID, 0);
buffer.writeUInt8(this.status, 1);
if (this.hpai == null) {
return buffer;
}
return Buffer.concat([
buffer,
this.hpai.toBuffer(),
this.crd.toBuffer(),
]);
}
}
exports.default = KNXConnectResponse;
//# sourceMappingURL=KNXConnectResponse.js.map