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From Robby Pelssers <>
Subject RE: Cocoon presentation link and questions about new contributions
Date Thu, 11 Oct 2012 08:48:50 GMT
Hi Javier,

I'm intrigued of course and I would like to know a little more about your demo project.  But
I'm sure I don't fully understand what is exactly the use case you solved.  I can perhaps
explain how we use Cocoon (2.2) at my customer and you can explain what is the difference:

-          Search forms interfacing with XMLDB / Alfresco services / Custom Webservice(s)
showing aggregated content  (

-          Transforming XML content into DITA maps / topics with XSLT and use integrated DITA
toolkit to generate NXP datasheets.  It's a matter of previewing / generating and publishing
the datasheet to Alfresco now. E.g.

-          Generate DITA content for automated translation into multiple languages

-          Data conversions between [CSV , XML, JSON, RDF, RDBMS, XMLDB]

-          ...

I would argue that we've been able to almost do everything using the Cocoon framework but
we also face time constraints to make the move to C3.  Back to my original question now ;-)

So you have some input which you transform and serve in different formats.   Can you shortly
describe how this is done?  In fact we already use two different approaches (DITA toolkit
and dynamic reports).  But I'm pretty sure you are taking a different approach.


From: Javier Puerto []
Sent: Thursday, October 11, 2012 12:39 AM
Subject: Cocoon presentation link and questions about new contributions

Hi all,

I had working for an introduction talk about cocoon and I want lo leave the github link. The
presentation is in Spanish because was for the and
Comes with examples made with cocoon 3.0 parsing a F1 sport webpage and serve the contents
in different formats. If you are interested I can translate the presentation to English (examples
and code are in English).


Working on the presentation I did a proof of concept creating an Apache Tika generator. It's
working but needs to enable caching and add the proper test cases and samples. If you are
interested, I can finish it and commit changes.

While I was working with cocoon at work time I started a OptimizerTransformer but I've found
that IncludeTransformer is not cacheable so I worked first to get it cacheable (COCOON3-100)
The transformer development is just at the beginning but before I continue to work with it
I want your opinion. The idea is to use YUI compressor (BSD license) and define a custom language
to define the static resources as CSS and JS. The transformer should review the resources,
respect the order, compress the files and create optimized resources in a given path (to serve
from Apache HTTPD with mod_cache and different domain). As this operation has a high cost,
the transformer must control if the resource files changed. Finally, the transformer will
place the proper tag with the URL for optimized static resources.

WDYT? maybe there's better solutions (I know google HTTPD mod_pagespeed but it's always in
beta state). The advantage is that you don't need to define everything at build time, with
maven plugin for example so you can organize your static resources like you want (no one big
file for all). On the other hand it has a high processor cost, but caching should minimize

I didn't had time to work in Apache Cocoon 3.0 caching system since a couple of months ago.
Recently, I had to switch the project and ATM I'm not working directly with cocoon. I want
to take a closer look to the caching system when I can get some free time (COCOON3-30 and
fragment caching), probably at December. Anyway, I will try to help in the mailing list and
make some contributions like described above.

I hope to see you soon in the ApacheCon,

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