format attribute support on wps data inputs
-------------------------------------------

                 Key: GEOS-4579
                 URL: http://jira.codehaus.org/browse/GEOS-4579
             Project: GeoServer
          Issue Type: Bug
          Components: WPS
            Reporter: Tim Schaub
            Assignee: Andrea Aime
         Attachments: wpsFormatSupport.patch

Looking at the WPS spec, I made the assumption that when the server described 
complex data inputs for a process with a <Format> element, the client was 
supposed to make KVP style requests using a "Format" attribute for the data 
input.  This assumption could be totally wrong, I'm really just looking for 
clarification here (so this is likely an invalid bug).

The examples in 10.2.2.1.1 and 10.2.2.2 use KVP requests like this:
{code}
fieldName=xml@Format=text/xml@Encoding=utf-8@Schema=xsd@asReference=true
{code}
and 
{code}
http://foo.bar.1/wps?version=1.0.0&request=Execute&service=WPS&Identifier=Buffe 
r&DataInputs=BufferDistance=100@datatype=integer@uom=meter;Object=
@Format=text/xml@Encoding=utf-8@Schema=xsd
{code}

This lead me to believe that the client should provide a "Format" attribute 
with the mime-type as a value to specify which format they are supplying.  The 
attached patch was a start at providing support for this.  Then when I looked 
at the tests, I saw that the "mimeType" attribute was used for just this 
purpose.

Am I misreading the spec?  If not, would it make sense to support "Format" as 
an alias for "mimeType"?



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