Introduction

Prior to Rifidi 3.1 Edge Messaging is available through ActiveMQ/JMS Interface. Starting in 3.1 Edge Messaging is now accessible though MQTT (Lightweight IoT Messaging Protocol through leveraging Moquette-mqtt plugin.

This now enables Rifidi Applications to publish events (captured via Rifidi Services for example Readzone Montoring, Stables Set) to a lightweight MQTT messaging queue

Configuration

In rifidiserver.ini - A full list of Rifidi Edge configuartion parameters can be found Edge_Server_Configuration

-Dorg.rifidi.mqtt.enabled=true

Moquette (MQTT Implementation) starts by default this can be changed

In the config folder is moquette.conf

This is where MQTT TCP, SSL and Websocket port and configuration can be set.

Note: SSL and Websockets support added in Rifidi 3.1.1

Example

##############################################
#  Moquette configuration file. 
#
#  The synthax is equals to mosquitto.conf
# 
##############################################

port 1883

websocket_port 8888

host 0.0.0.0

#Password file
password_file config/password_file.conf


ssl_port 8883
 
jks_path config/serverkeystore.jks
 
key_store_password password
 
key_manager_password password

Link to Rifidi Source containing MQTT - https://transcends.svn.cloudforge.com/rifidi/rifidi/trunk/org.rifidi.edge/src/org/rifidi/edge/Activator.java

Clients for Publishings/Subscribing to MqTT Broker

An example client for subscribing/consuming these messages can be found at Paho Eclipse IoT/M2M Project

Example Rifidi MQTT Integration Application

• Link to Rifidi MQTT Jumpstart App