DesignXMPP analysis

Version 14 (Adrian Georgescu, 04/01/2012 05:20 pm)

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= Software Candidates Analysis =
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[[TOC(DesignXMPP, DesignXMPP_analysis, DesignXMPP_arch, DesignXMPP_im, , DesignXMPP_conference, DesignXMPP_presence, DesignXMPP_jingle,DesignXMPP_ft, depth=2)]]
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In this phase the existing XMPP libraries will be analyzed and one will be chosen to be used throughout the project.
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== Requirements ==
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 * Written in Python (C/C++ could also be used, but a wrapper would need to be written)
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 * Support for XMPP server and/or component
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 * Ability to use it with the current model used by SylkServer
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  * Green threads
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  * Callback based IO
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== Software Libraries Evaluation ==
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The following aspects were considered when evaluating a given library:
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 * Met requirements stated above
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 * Is it actively maintained?
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 * Example use cases
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 * Deployments in real-world scenarios
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 * Perceived complexity to integrate it with SylkServer architecture
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List on xmpp.org http://xmpp.org/xmpp-software/libraries/
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== Selected XMPP library ==
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After analyzing candidate libraries '''Wokkel''' was the chosen one for the following reasons:
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 * Implemented on top of Twisted, which makes integration with SylkServer straightforward
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 * Support for both component and XMPP server models, allowing for flexibility in implementation
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http://wokkel.ik.nu/
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 * Plugin architecture, 'subprotocols' implementing different XEPs
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 * Client and server component support
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 * XMPP server-to-server support (s2s)
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 * Designed to be used with Twisted (reactor model)
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 * Active development
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== Selected SIP Library ==
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SIP SIMPLE SDK http://sipsimpleclient.com used by SylkServer