"use strict"; Object.defineProperty(exports, "__esModule", { value: true }); const Mqtt = require("mqtt"); const log = require("./log"); const callchain = require("./callchain"); const fs = require("fs"); const MQTT_BROKER_DEFAULT_URL = "mqtt://localhost"; function passThrough(message) { return message; } exports.passThrough = passThrough; class MqttDispatcher { constructor(mqttBrokerUrl, mqttUser, mqttPass, mqttCAFile) { this._mqttOptions = {}; this._mqttBrokerUrl = (mqttBrokerUrl) ? mqttBrokerUrl : MQTT_BROKER_DEFAULT_URL; if (mqttUser && mqttPass) { this._mqttOptions.username = mqttUser; this._mqttOptions.password = mqttPass; } if (mqttCAFile) { this._mqttOptions.ca = fs.readFileSync(mqttCAFile, 'ascii'); this._mqttOptions.rejectUnauthorized = true; } this._topicHandlers = []; } register(topic, label, newChainItemOrCallbackFunc) { let newChainItem; if (newChainItemOrCallbackFunc instanceof callchain.AChainItem) { newChainItem = newChainItemOrCallbackFunc; } else { let myNewChainItem = new callchain.ChainItem(label); myNewChainItem.registerFunc(newChainItemOrCallbackFunc); newChainItem = myNewChainItem; } let done = false; for (let topicHandler of this._topicHandlers) { if (topicHandler.topic === topic) { topicHandler.last.registerNext(newChainItem); topicHandler.last = newChainItem; done = true; log.info(`additional callback ${newChainItem.toString()} added for topic ${topic}`); } } if (!done) { this._topicHandlers.push({ topic: topic, root: newChainItem, last: newChainItem }); log.info(`first callback ${newChainItem.toString()} added for topic ${topic}`); } } exec() { for (let topicHandler of this._topicHandlers) { topicHandler.root.begin(); } log.info(`connecting to ${this._mqttBrokerUrl}`); this._mqttClient = Mqtt.connect(this._mqttBrokerUrl, this._mqttOptions); this._mqttClient.on('error', log.error); this._mqttClient.on('connect', () => { log.info("connected to mqtt broker"); for (let topicHandler of this._topicHandlers) { this._mqttClient.subscribe(topicHandler.topic); } }); this._mqttClient.on('message', (topic, payload) => { log.info(`message received, topic ${topic}, payload ${payload}`); for (let topicHandler of this._topicHandlers) { if (this.topicMatch(topicHandler.topic, topic)) { log.info(`received topic ${topic} matches registered topic ${topicHandler.topic}`); topicHandler.root.send(payload); } } }); } topicMatch(registeredTopic, receivedTopic) { let registeredTopicFields = registeredTopic.split('/'); let receivedTopicFields = receivedTopic.split('/'); for (let field in registeredTopicFields) { let regField = registeredTopicFields[field]; let recvField = receivedTopicFields[field]; log.info(`recv: ${recvField}, reg: ${regField}`); if (regField === "#") { log.info('true'); return true; } if (regField != recvField && regField != "+") { log.info('false'); return false; } } if (registeredTopicFields.length == receivedTopicFields.length) { log.info('true'); return true; } else { log.info('false'); return false; } } } exports.MqttDispatcher = MqttDispatcher; //# sourceMappingURL=mqttdispatcher.js.map