Re: [Webical-developers] Plugin development

[Zoran K. <zo...@fu...>]

Good news! Can you post a link to the topic?

How about adding some of the smaller items to the trackers?

Do you have any caldav server in mind? I think that RSCDS should be pretty
okay. You can also apt-get install it:
http://rscds.sourceforge.net/
(PHP based though, but that really shouldn't matter)

Best,
Zoran

Ivo van Dongen wrote:
> Hello,
> 
> In order to get the plugin framework somewhat stable and complete I've 
> started reviewing and expanded it. I'll do this in two steps: first the 
> backend and then the frontend. I've decided to do this by developing 
> some plugins in parallel to get the requirements clear in a practical 
> way. For the the backend plugin I've already started on a caldav 
> provider, I'll decide on the frontend plugin later (thinking off a 
> google maps plugin).
> While working on the plugin a couple of issues/missing features already 
> popped up together with some infrastructure needs to make development 
> easier. I'll list them here for now.
> 
> Infrastructure needs:
> 
> - A maven repository to deploy webical classes to. This enables plugin 
> developers to add webical as a compile time dependency.
> - A webdav location (or just web with some other form of upload) to 
> deploy the plugin manifest xsd. This makes it possible to reference the 
> xsd online.
> - Nigthly builds that can be deployed to the maven repository (through 
> continuum?).
> - An svn restructuring to accommodate the plugins developed in-house. 
> This could be done as a separate project or by dividing trunk in 
> /webical and /plugins.
> - (Optional) A location to upload (nigtly) builds for the plugins.
> 
> 
> Webical enhancements:
> 
> - Extension the pom so that a jar is created with the classes to upload 
> to the maven repository.
> - The possibility to include jar archives in the plugin:
>    - Extend the manifest xsd.
>    - Extend the plugin classloader.
> - Add dependency information in the framework
>    - Add a version number in the web.xml or applicationContext.xml 
> (generated by maven)
>    - Add a compatible-webical-version in the manifest xsd
>    - Extend the Plugin registration system to check for the version 
> numbers and only enable the plugin on a match.
> 
> Possible desired enhancements:
> 
> - Add a search method to the EventDao and manager to enable search on 
> the calendars.
> - Extract the synchronization logic from the provider specific details 
> so it can be reused by plugins (a google calendar provider for example).
> - Plugin framework enhancements:
>    - Add additional possibilities to describe the plugin:
>       - An version number (required)
>       - A description (required)
>       - A static html page to display additional information like 
> licenses, developers and that sort of thing)
>    - Add configuration options
>       - Global settings. Give the opportunity to supply a configuration 
> page. The configurations are stored in the database.
>       - User settings. Give the opportunity to supply a per-user 
> configuration page. These configurations are stored in the database as 
> well.
>    - Divide the configuration page in steps where the plugin 
> configuration has a separate tab.
>    - Add a list of plugins with the state (plus reason why they are not 
> enabled), info and a link to the optional info and configuration page.
>       - Debug info can also be added. I'm thinking of a page that shows 
> the registered classes, jars, resource directories, backend providers 
> used/offered extension points, etc.
> 
> There are probably a lot more features that can be thought off, so I'll 
> start a topic to list these and let it serve as a base for additional 
> requests and discussions.
> 
> Regards,
> Ivo
> 
> -- 
> Ivo van Dongen
> Func. Internet Integration
> W http://www.func.nl
> T +31 20 4230000
> F +31 20 4223500
> 
> 
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-- 
Zoran Kovacevic
Func. Internet Integration
W http://www.func.nl
M +31 6 48104284
T +31 20 4230000
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