@signalk/streams/dist/gpsd.js

Utilities for handling streams of Signal K data

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const stream_1 = require("stream");
const node_gpsd_client_1 = __importDefault(require("node-gpsd-client"));
class Gpsd extends stream_1.Transform {
    listener;
    constructor(options) {
        super({ objectMode: true });
        const port = options.port ?? 2947;
        const hostname = options.hostname ?? options.host ?? 'localhost';
        const noDataReceivedTimeout = options.noDataReceivedTimeout ?? 0;
        const setProviderStatus = (msg) => {
            options.app.setProviderStatus(options.providerId, msg);
        };
        const createDebug = options.createDebug ?? require('debug');
        this.listener = new node_gpsd_client_1.default({
            port,
            hostname,
            logger: {
                info: createDebug('signalk:streams:gpsd'),
                warn: console.warn,
                error: (msg) => {
                    options.app.setProviderError(options.providerId, `${hostname}:${port}: ` + msg);
                }
            },
            parse: false,
            reconnectThreshold: noDataReceivedTimeout,
            reconnectInterval: noDataReceivedTimeout / 2
        });
        setProviderStatus(`Connecting to ${hostname}:${port}`);
        this.listener.on('connected', () => {
            setProviderStatus(`Connected to ${hostname}:${port}`);
            this.listener.watch({
                class: 'WATCH',
                nmea: true,
                json: false
            });
        });
        this.listener.on('raw', (data) => {
            this.push(data);
        });
        this.listener.connect();
    }
    end() {
        this.listener.disconnect();
        return this;
    }
    _transform(chunk, encoding, done) {
        done();
    }
}
exports.default = Gpsd;