@addapptables/microservice/dist/bus-adapters/mqtt-bus.adapter.js

addapptables microservice

"use strict";
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
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};
var __metadata = (this && this.__metadata) || function (k, v) {
    if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
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        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
var MqttBusAdapter_1;
Object.defineProperty(exports, "__esModule", { value: true });
exports.MqttBusAdapter = void 0;
const rxjs_1 = require("rxjs");
const operators_1 = require("rxjs/operators");
const load_package_util_1 = require("../utils/load-package.util");
const logger_service_1 = require("../logger/services/logger.service");
const common_1 = require("@nestjs/common");
let MqttBusAdapter = MqttBusAdapter_1 = class MqttBusAdapter {
    constructor(logger) {
        this.logger = logger;
        this.mqttPackage = {};
        this.handles = new Map();
        logger.setContext(MqttBusAdapter_1.name);
        this.mqttPackage = (0, load_package_util_1.loadPackage)('mqtt', MqttBusAdapter_1.name);
    }
    setOptions(options) {
        this.options = options || {};
    }
    onInit() {
        return __awaiter(this, void 0, void 0, function* () {
            this.logger.verbose('init connection');
            this.client = this.mqttPackage.connect(this.options.brokerUrl, this.options.clientOptions);
            const onConnect = (0, rxjs_1.fromEvent)(this.client, 'connect');
            const onError = (0, rxjs_1.fromEvent)(this.client, 'error').pipe((0, operators_1.map)((error) => {
                throw error;
            }));
            yield (0, rxjs_1.firstValueFrom)((0, rxjs_1.merge)(onConnect, onError).pipe((0, operators_1.first)()));
            this.listenMessages();
        });
    }
    listenMessages() {
        this.logger.verbose('Listen messages');
        this.client.on('message', (topic, payload) => __awaiter(this, void 0, void 0, function* () {
            const msg = (JSON.parse(payload.toString()));
            try {
                const handles = this.handles.get(topic);
                handles.forEach((handle) => __awaiter(this, void 0, void 0, function* () { return yield handle(msg); }));
                this.logger.debug(Object.assign(Object.assign({}, msg), { receivedData: true }), msg.context);
            }
            catch (error) {
                this.logger.error({ message: error.message, msg }, MqttBusAdapter_1.name, msg.context);
            }
        }));
    }
    publish(data, 
    // options: IClientPublishOptions
    options) {
        return __awaiter(this, void 0, void 0, function* () {
            this.logger.verbose('Publish messages');
            return new Promise((resolve, reject) => {
                const topic = `${data.context}-${data.action}`;
                this.client.publish(topic, JSON.stringify(data), 
                // options || <IClientPublishOptions>{},
                options || {}, (error) => {
                    if (error) {
                        reject(error);
                        return;
                    }
                    this.logger.debug(Object.assign(Object.assign({}, data), { sendData: true }), data.context);
                    resolve();
                });
            });
        });
    }
    subscribe(handle, data, 
    // options: IClientPublishOptions
    options) {
        return __awaiter(this, void 0, void 0, function* () {
            return new Promise((resolve, reject) => {
                const topic = `${data.context}-${data.action}`;
                const handles = this.handles.get(topic) || [];
                this.handles.set(topic, [...handles, handle]);
                this.client.subscribe(topic, 
                // options || <IClientPublishOptions>{},
                options || {}, (error) => {
                    if (error) {
                        reject(error);
                        return;
                    }
                    resolve();
                });
            });
        });
    }
    close() {
        return __awaiter(this, void 0, void 0, function* () {
            this.logger.verbose('close connection');
            return new Promise((resolve) => {
                this.client.end(true, {}, () => {
                    resolve();
                });
            });
        });
    }
};
MqttBusAdapter = MqttBusAdapter_1 = __decorate([
    (0, common_1.Injectable)({ scope: common_1.Scope.TRANSIENT }),
    __metadata("design:paramtypes", [logger_service_1.CraftsLogger])
], MqttBusAdapter);
exports.MqttBusAdapter = MqttBusAdapter;
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