Hi Francisco,
You may be interested in this thread:
http://osgeo-org.1560.x6.nabble.com/Referencing-App-Schema-defined-feature-types-properties-in-styles-SLD-td5347766.html
long story short you should try to reference your property using a path
relative to the root entity:
*<ogc:PropertyName>gn:name/gn:GeographicalName/gn:spelling/gn:SpellingOfName/gn:text/@xlink:href</ogc:PropertyName>**
*If this fix your issue please remember to update the related ticket !
Kind regards,
Nuno Oliveira
On 12/04/2017 11:08 AM, Francisco Caldeira wrote:
Hello,
Ok Nuno Oliveira, I’m going to create the issue on the bug tracker.
Thank you and all for the help!
Regards
F
cid:[email protected]
Francisco Caldeira - Serviço de GeoInformação
I.N.E. - Instituto Nacional de Estatística
Avenida António José de Almeida
100-043 Lisboa
Portugal
[email protected] <mailto:[email protected]>
(351) - 21 8426100
Ext. 1438
*From:*Nuno Oliveira [mailto:[email protected]]
*Sent:* sexta-feira, 1 de dezembro de 2017 10:07
*To:* Andrea Aime
*Cc:* GeoServer Mailing List List
*Subject:* Re: [Geoserver-users] Appschema and Sld for WMS
Sorry Andrea forgot to share the details indeed, my bad.
The inner exception is actually swallowed at some point (this should be fixed some way ... logging
the exception ?), the relevant part is this one (full stacktrace attached):
java.lang.NullPointerException
at
org.geotools.feature.xpath.FeatureTypeAttributePointer.<init>(FeatureTypeAttributePointer.java:90)
at
org.geotools.feature.xpath.SingleFeatureTypeAttributeIterator.getNodePointer(SingleFeatureTypeAttributeIterator.java:82)
at
org.apache.commons.jxpath.ri.axes.ChildContext.getCurrentNodePointer(ChildContext.java:57)
at
org.apache.commons.jxpath.ri.axes.ChildContext.prepare(ChildContext.java:108)
at
org.apache.commons.jxpath.ri.axes.ChildContext.setPosition(ChildContext.java:99)
at
org.apache.commons.jxpath.ri.axes.ChildContext.nextNode(ChildContext.java:87)
at
org.apache.commons.jxpath.ri.EvalContext.performIteratorStep(EvalContext.java:155)
at org.apache.commons.jxpath.ri.EvalContext.hasNext(EvalContext.java:115)
at
org.geotools.filter.expression.FeaturePropertyAccessorFactory$FeaturePropertyAccessor.get(FeaturePropertyAccessorFactory.java:269)
at
org.geotools.filter.AttributeExpressionImpl.tryAccessor(AttributeExpressionImpl.java:248)
at
org.geotools.filter.AttributeExpressionImpl.evaluate(AttributeExpressionImpl.java:220)
at
org.geotools.filter.AttributeExpressionImpl.evaluate(AttributeExpressionImpl.java:189)
at
org.geoserver.wms.map.GetMapKvpRequestReader.checkStyle(GetMapKvpRequestReader.java:1083)
Several strange things here:
* since there is a XML related library in the middle I would expect some
strange behavior like
an assertion fail, custom exception, etc ... but not a NULL pointer
exception for sure.
* since we are dealing with a complex feature not sure why a
SingleFeatureTypeAttributeIterator
is being used.
So as far I can tell the used xpath looks fine, using the same path for
filtering works just fine:
<wfs:Query typeName="st_gml32:Station_gml32">
<ogc:Filter>
<ogc:Filter>
<ogc:PropertyIsEqualTo>
<ogc:PropertyName>
*st_gml32:Station_gml32/st_gml32:name*
</ogc:PropertyName>
<ogc:Literal>
station1
</ogc:Literal>
</ogc:PropertyIsEqualTo>
</ogc:Filter>
</ogc:Filter>
</wfs:Query>
So it looks to me that there something wrong ... discovering what will require a deeper
investigation, at least for me ... maybe someone else already stepped on this and knows what is
going one ?
Independently of what is going here, complex feature feedbacks for when a property is not found
needs to be improved.
@Franciso if you don't get more feedback on this I will suggest to you to go ahead and open an
issue in the bug tracker:
http://geoserver.org/issues/
Cheers,
Nuno Oliveira
On 12/01/2017 09:05 AM, Andrea Aime wrote:
On Fri, Dec 1, 2017 at 10:02 AM, Nuno Oliveira
<[email protected]
<mailto:[email protected]>> wrote:
Hi Andrea,
thanks for the heads up.
When I saw the properties check I also thought it was deactivated for
complex feature, so I
did a quick test where I deactivate the check ... we get the same issue
when trying to render
the map.
I see... what's the full stack trace?
Wondering if there are checks at multiple levels, like, during rendering I
was expecting more
of a null if the property cannot be accessed.
Cheers
Andrea
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==
GeoServer Professional Services from the experts! Visit http://goo.gl/it488V
for more information.
==
Nuno Miguel Carvalho Oliveira
@nmcoliveira
Software Engineer
GeoSolutions S.A.S.
Via di Montramito 3/A
55054 Massarosa (LU)
Italy
phone: +39 0584 962313
fax: +39 0584 1660272
http://www.geo-solutions.it
http://twitter.com/geosolutions_it
-------------------------------------------------------
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