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From Gayan Gunarathne <gay...@wso2.com>
Subject Re: Messaging protocol with Stratos python cartridge agent
Date Mon, 01 Sep 2014 11:02:39 GMT
Thanks Paul.

We will check on this paho-mgtt python library as well.

Thanks,
Gayan




On Mon, Sep 1, 2014 at 4:17 PM, Paul Fremantle <paul@wso2.com> wrote:

> Python has excellent pure python MQTT support.
>
> > pip install paho-mqtt
>
> https://pypi.python.org/pypi/paho-mqtt
>
> Paul
>
>
> On 1 September 2014 11:40, Gayan Gunarathne <gayang@wso2.com> wrote:
>
>> Hi Paul,
>>
>> Here we try to connect the our existing Apache ActiveMQ with the pure
>> python.(We try to replace our java cartridge agent with the python as
>> after that we can remove the java dependency from the cartridge itself).
>> In the initial research we didn't notice such a pure python libraries
>> with the MQTT  which can connect with the ActiveMQ. Also with the initial
>> reading I guess they are recommend it for the mobile applications as its
>> low bandwidth consumption.Also I am noticed lot of web socket based
>> applications are developed through MQTT.
>>
>> Thanks,
>> Gayan
>>
>>
>> On Mon, Sep 1, 2014 at 3:42 PM, Paul Fremantle <paul@wso2.com> wrote:
>>
>>> Have you looked at mqtt?
>>>
>>> Paul
>>> On 1 Sep 2014 12:10, "Gayan Gunarathne" <gayang@wso2.com> wrote:
>>>
>>>>
>>>> Hi All,
>>>>
>>>> As per our initial research on the python based messaging
>>>> implementation of python cartridge agent and discussion[1] we can summarize
>>>> our findings as following.
>>>>
>>>> *1.AMQP*
>>>>
>>>> Apache ActiveMQ used the AMQP 1.0 protocol. We found C based client
>>>> library (proton) [2] which can be used with python.
>>>> But it is a platform dependent library and every time we need to
>>>> install the libraries based on the architecture and OS version.IMO this
>>>> will be difficult us to manage as we need to install the libraries based
on
>>>> the platform.
>>>>
>>>> Other python libraries(txAMQP ,pika etc) supports AMQP 0.9 which fails
>>>> to connect with the ActiveMQ.
>>>>
>>>>
>>>> *2.STOMP*
>>>>
>>>> We can connect to the ActiveMQ with the STOMP protocol by using the
>>>> STOMP python client library[3].IMO we can used STOMP with ActiveMQ without
>>>> worry about the platform based library installation.By considering our
>>>> scope of the cartridge agent I think it is better to have a platform
>>>> independence cartridge as far as we can. Then, IMO STOMP based messaging
>>>> queue implementation  will be more manageable when we increase our number
>>>> of platform supported.
>>>> WDYT?
>>>>
>>>> When comparing the performance of theses two protocols it looks like
>>>> there are no such huge difference[4].I guess the performance also tightly
>>>> coupled with the message broker you are using as well.OTOH Apache ActiveMQ
>>>> recommended way also to used the STOMP with the python[5].
>>>>
>>>>
>>>> Please share your thoughts on this.
>>>>
>>>> [1] Stratos Python Cartridge Agent
>>>> [2] https://github.com/apache/qpid-proton
>>>> [3] https://github.com/jasonrbriggs/stomp.py
>>>> [4]
>>>> http://blogs.vmware.com/vfabric/2013/02/choosing-your-messaging-protocol-amqp-mqtt-or-stomp.html
>>>> [5] http://activemq.apache.org/python.html
>>>>
>>>>
>>>> Thanks,
>>>> Gayan
>>>>
>>>>
>>>>
>>>> --
>>>>
>>>>
>>>> Gayan Gunarathne
>>>> Technical Lead
>>>> WSO2 Inc. (http://wso2.com)
>>>> email  : gayang@wso2.com  | mobile : +94 766819985
>>>>
>>>>
>>>
>>
>>
>> --
>> Best Regards,
>>
>> Gayan Gunarathne
>> Technical Lead
>> WSO2 Inc. (http://wso2.com)
>>  email  : gayang@wso2.com  | mobile : +94 766819985
>>
>>
>
>
>
> --
> Paul Fremantle
> CTO and Co-Founder, WSO2
> OASIS WS-RX TC Co-chair, Apache Member
>
> UK: +44 207 096 0336
>
> blog: http://pzf.fremantle.org
> twitter.com/pzfreo
> paul@wso2.com
>
> wso2.com Lean Enterprise Middleware
>
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-- 
Best Regards,

Gayan Gunarathne
Technical Lead
WSO2 Inc. (http://wso2.com)
email  : gayang@wso2.com  | mobile : +94 766819985

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