Hi Keith,
Did you know we have already ported those examples? Check the
"org.restlet.example" module for source code.
Otherwise, the getEntityAsForm() method caches the result by default, so you
could invoke it again later down the road. However, the Resource class
doesn't know about that and from its point of view, the original entity
isn't available anymore.
One way to workaround this is to replace the Request's entity with the
parsed Form:
request.setEntity(myForm.getWebRepresentation());
Best regards,
Jerome Louvel
--
Restlet ~ Founder and Lead developer ~ http://www.restlet.org
Noelios Technologies ~ Co-founder ~ http://www.noelios.com
-----Message d'origine-----
De : Keith McDonald [mailto:keithmmcdon...@gmail.com]
Envoyé : mardi 12 mai 2009 18:06
À : discuss@restlet.tigris.org
Objet : Can a filter read entity non-destructively?
To teach myself Restlet, I am trying to port the example bookmarking
application from chapter 7 of Richardson and Ruby's "RESTful Web Services".
In their example, they put "before" filters on their objects to check if the
user whose information is being requested matches the user whose credentials
were used to authenticate.
It does this by looking at the user name in the entity. I tried to recreate
this functionality in Restlet by creating a subclass of Filter called
MustSpecifyUserFilter and reading the
entity by calling getEntityAsForm inside the filter's beforeHandle method,
but this causes the entity to be marked as unavailable and a 400 to be
returned before my Resource code can process it (In my Resource subclass, I
am only overriding storeRepresentation rather than handlePut).
Should I give up trying to use Filters to recreate this functionality or is
there another way such as overriding handlePut to ignore the "available"
attribute on the entity?
I am using Restlet 1.1.4.
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