Currently there is no direct way to disconnect and reconnect, I am using MQTT.js to create and connect to the broker. The only way to stop the created mqtt connection is the end() method, which will also remove all subscriptions at the broker. I could recreate the connections and then add all subscriptions.
Thanks for pointing this out. I am going to change this so that you can indeed change the hostname if the connection is not connected
All the best
Dave
----- Forwarded by Dave
Locke/UK/IBM on 27/08/2014 14:42 -----
From:
Dave Locke/UK/IBM
To:
General development
discussions for paho project <paho-dev@xxxxxxxxxxx>
Date:
26/08/2014 09:36
Subject:
Re: [paho-dev]
MQTTlens
Hi Paul,
just tried iot.eclipse.org with
tcp and it worked a treat for me - maybe its firewall problems?
All the best
Dave
From:
Paul Fremantle <paul.fremantle@xxxxxxxxxx>
To:
General development
discussions for paho project <paho-dev@xxxxxxxxxxx>
Date:
26/08/2014 09:17
Subject:
Re: [paho-dev]
MQTTlens
Sent by:
paho-dev-bounces@xxxxxxxxxxx
Sandro
I'm probably being stupid but I can't seem to get it to
connect to iot.eclipse.org
or test.mosquitto.org.
Any hints?
Paul
On 25 August 2014 19:38, Sandro Kock <sandro.kock@xxxxxxxxx>
wrote:
<Mail-Anhang.png>Hey everyone,
I would like to introduce you to MQTTlens a Chrome App
for testing MQTT communication scenarios I worked on for the GSoC. The
packaged Chrome App is now available in the Google Chrome Web store at
[1].
<Mail-Anhang.png>
Once installed it can be used like any other native OS
application. Through the chrome socket API, the application is able to
support MQTT connections via TCP and WebSockets. Currently the application
supports the concurrent connections to multiple MQTT-Brokers (1), the publication
of messages to any topic and of curse the subscriptions to topics. If the
message payload is recognized as a JSON object it is pretty printed like
shown in (2)
<Mail-Anhang.png>
<Mail-Anhang.png>
So please go ahead and give it a try. If you have any feedback
(positive or negative) I am happy to hear it.
MQTTlens is build with Polymer.js [2] – a polyfill library
that makes it possible to create custom HTML elements. These custom elements
can be in included into any web application to provide a custom functionality,
like an AJAX request or a MQTT connection. Even though the MQTTlens
application is a single HTML element, including it into an application
would not make too much sense, but adding a MQTT-Connection to one would.
If you like to have a look at the mqtt-connection element I created within
the project, it is available on github at [3] and can be included into
any web application via bower:
0. Install bower If not installed
npm install bower -g
1. Run the following command with in the web application
directory
bower install sandro-k/mqtt-connection –save
2. Add theses two lines to your application
<script src=""></script>
<link rel="import" href=""/>
3. Instantiate the DOM element
<mqtt-connection></ mqtt-connection>
A detailed demo usage of the mqtt-connection is available
at [4]. I will continue working on this in my spare time to improve the
MQTTlens app and the usability of the mqtt-connection element. If you have
any questions or ideas how anything of this could be improved please contact
me, I am happy to help.
Last but not least, I think MQTTLens and all its sub-projects
would be a great contribution to the Paho project and I would be happy
to contribute it to the community.
Happy MQTTing,
Sandro
[1] https://chrome.google.com/webstore/detail/mqttlens/hemojaaeigabkbcookmlgmdigohjobjm
[2] http://www.polymer-project.org/
[3] https://github.com/sandro-k/mqtt-connection/
[4] https://github.com/sandro-k/mqtt-connection/blob/master/demo.html
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--
Paul Fremantle
Part-time PhD student - School of Computing
email: paul.fremantle@xxxxxxxxxx,
paul@xxxxxxxxxxxxx
twitter: pzfreo / skype: paulfremantle / blog: http://pzf.fremantle.org
CTO and Co-Founder, WSO2
OASIS WS-RX TC Co-chair, Apache Member
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Unless stated otherwise above:
IBM United Kingdom Limited - Registered in England and Wales with number
741598.
Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6
3AU
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