[Building Sakai] Tapestry 5 Integration with Sakai

[Charlie Macchia]

As a former WebObjects coder, I can say Tapestry is wonderful: based on my
experience with it last year, I can say at the time it was a vast
improvement over many of the other options Java coders have to labor under.
However, the field keeps changing, and it¹s always good to compare ... but
yes Earle, my experience with it was quite positive.

I¹d be very curious as to how it could integrate with Sakai.

Charlie

On 6/25/11 12:17 PM, "Earle Nietzel" <earle.nietzel at gmail.com> wrote:

> Hello,
> 
> The last 6 months I have been using Tapestry 5 and have come to enjoy using it
> very much. 
> 
> It is a very powerful but yet simple Java web framework that is often compared
> to Wicket a lot since it shares many of the same ideas.
> 
> I did look at Wicket prior to Tapestry and was not satisfied by the amount of
> code that goes into a Wicket App.
> 
> Tapestry is like a breath of fresh air, it's power comes from its own DSL by
> use of annotations. It has its own IoC container allowing the ability to
> create pages with minimal amounts of code, often resulting in 1 page of code
> because of its excellent use of annotations. To give you an example even
> validation is added using an annotation, just a simple one liner for example:
> 
> @Validate("required,regexp")
> public String zip;
> 
> And you can i18n the error message and the regular expression to a properties
> file:
> zip-regexp=^\\d{5}(-\\d{4})?$
> zip-regexp-message=Zip Codes are five or nine digits.  Example: 12589 or
> 12589-0000.
> 
> Those that have used features from lombok will like to know these are built
> into Tapestry 5.
> 
> Of course there is so much more so take a look at their web site
> http://tapestry.apache.org/ where they have a 10 minute video
> http://blog.markwshead.com/900/tapestry-5-10-minute-demo/
> 
> The video is a great way to see what Tapestry can offer over a coffee break.
> 
> 
> I have looked at integrating Tapestry 5 with Sakai.
> 
> What I have found is that Tapestry (as well as newer versions of Wicket) is
> invoked as a web filter i.e. TapestryFilter, currenlty Sakai does not support
> using filters as tools in fact it must be a servlet. This appears to be due to
> the tool registration as it registers a tool id with a servlet and then uses
> RequestDispatcher to dispatch requests to the appropriate tool.
> 
> I have opened the following JIRA KNL-754
> <https://jira.sakaiproject.org/browse/KNL-754>  to track this feature.
> 
> I would also like to know if there is interest in this?
> 
> Earle
> 
> 
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