Il 11/30/2014 06:36 PM, Rahkonen Jukka (Tike) scrisse:
> I would spend some time with studying what happens with the WFS
> request that is feeding data for the WPS process. I can imagine that
> if the filter used for filtering WFS is not accepted then it will be
> ignored and WFS returns the whole featuretype. In this case the WPS
> process would always report the full BBOX as bounds.
Hi Jukka,
I'm a little bit confused by the results of my tests and by my limited
knowledge of geoserver and its parts.
I followed your suggestion and used the Demo requests to retrieve the
filtered data.
I get the expected results:
- if I filter by geometry looking for Points I get null (my fetaures are
lines)
- if I filter by propertyName I get only the features whose attribute
has the value I entered in the filter.
So wfs alone works.
>
> On the other hand, if WFS returns only the right features and the WPS
> process still computes wrong extents then there must be something
> badly wrong with the code of the process. Because all the processes
> you have tried behave similarly as if the results from WFS were not
> filtered at all I would suspect even stronger that it is the truth
> and WFS filters are ignored.
I tried the vec.Query function using a CQL filter and it works.
I tried it using the WPS request builder but I don't know the syntax and
the wfs syntax doesn't work.
I cose vec:Query, VECTOR_LAYER and my layer. As filter type I chose TEXT
and entered in the textbox:
<ogc:Filter>
<ogc:PropertyIsEqualTo>
<ogc:PropertyName>tags</ogc:PropertyName>
<ogc:Literal>53</ogc:Literal>
</ogc:PropertyIsEqualTo>
</ogc:Filter>
Executing I got:
<wps:ProcessFailed><ows:ExceptionReport version="1.1.0"><ows:Exception
exceptionCode="NoApplicableCode"><ows:ExceptionText>Process failed
during execution
Process execution c023f90b-b4d4-4c2f-bad2-12ffbdd34e77 failed
Failed to retrieve value for input filter
The prefix "ogc" for element "ogc:Filter" is not
bound.</ows:ExceptionText></ows:Exception></ows:ExceptionReport></wps:ProcessFailed>
In the geoserver log the error is more specific:
Caused by: org.xml.sax.SAXParseException; lineNumber: 1; columnNumber:
13; The prefix "ogc" for element "ogc:Filter" is not bound.
I don't know the meaning of not bound in this context (sorry).
I don't know if this is related to the problem in my original post.
If I try to execute the wps in my original post, the geoserver log reports:
2014-11-30 17:05:09,441 INFO [geoserver.wps] -
Request: execute
service = WPS
version = 1.0.0
baseUrl = http://localhost:8080/geoserver/
identifier:
value = gs:Bounds
dataInputs:
input[0]:
identifier = net.opengis.ows11.impl.CodeTypeImpl@24cb1d30
(value: features, codeSpace: null)
reference =
net.opengis.wps10.impl.InputReferenceTypeImpl@12e94d2f (body:
net.opengis.wfs.impl.GetFeatureTypeImpl@12ca525c (handle: null, service:
WFS, version: 1.0.0, baseUrl: null, providedVersion: null,
extendedProperties: {}) (maxFeatures: null, outputFormat: GML2,
resultType: <unset>, traverseXlinkDepth: null, traverseXlinkExpiry:
null, formatOptions: null, metadata: null, startIndex: null, viewParams:
null), encoding: null, href: http://geoserver/wfs, method: POST,
mimeType: text/xml; subtype=wfs-collection/1.0, schema: null)
responseForm:
rawDataOutput:
identifier = net.opengis.ows11.impl.CodeTypeImpl@20e51fa7
(value: bounds, codeSpace: null)
I hope all these infos can help some of you to address me in the right
direction.
Thank you
maxx
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