minecraft/scriptcraft/plugins/mqtt.js

/**
 * Created by aiko on 25/10/15.
 */

var mqtt = require('sc-mqtt');

var MqttConnectOptions = org.eclipse.paho.client.mqttv3.MqttConnectOptions;

// create a new client
var client = mqtt.client('tcp://pi2.aiko.sh:1883', 'scriptCraft_aiko_pro');
// connect to the broker
//client.connect( { keepAliveInterval: 15 } );
var options = new MqttConnectOptions();
options.setKeepAliveInterval(15);
client.connect(options);

var uptime = 'raspberrypiko/status/uptime';
var cpu_temp = 'raspberrypiko/sensors/temp/cpu';
client.subscribe(cpu_temp);
client.subscribe(uptime);

//  do something when an incoming message arrives...
var Rx = require('node_modules/rx');

var all_messages = Rx.Observable.create(function (observer) {
// override default onMessageArrive method with our own.
	client.onMessageArrived(function (topic, message) {
		var item = {
			topic: topic,
			message: JSON.parse(message)
		};
		console.log('Rx Message arrived: topic=' + topic + ', message=' + message);
		observer.onNext(item);
	});
	client.onConnectionLost(function (err) {
		observer.onCompleted();
	});

	// Any cleanup logic might go here
	return function () {
		console.log('disposed');
	}
});

var degrees = all_messages.filter(function (n) {
	return n.topic === cpu_temp;
}).distinctUntilChanged(function (n) {
	return n.message.degrees;
});

var subscription = degrees.subscribe(
	function (x) {
		console.log('onNext: %s, %s', x.topic, x.message.degrees);
	},
	function (e) {
		console.log('onError: %s', e);
	},
	function () {
		console.log('onCompleted');
	}
);

//subscription.dispose();
console.log('restarted');