[Geoserver-devel] [jira] Created: (GEOS-595) Failure to handle GML Feature associations as properties in output schema

GeoServer GeoServer Developer
1

Failure to handle GML Feature associations as properties in output schema
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         Key: GEOS-595
         URL: http://jira.codehaus.org/browse/GEOS-595
     Project: GeoServer
        Type: Bug

  Components: WFS
    Versions: 1.4.M0
    Reporter: Rob Atkinson
Assigned to: Ian Turton
     Fix For: 1.4.M0
Attachments: geoserver_conf.zip

When a GML Feature Type has a property that is an instance of another Feature, its actually a construct that allows inline or by reference instantiation:

eg (from ISO19112 Gazetteer definition, a Data Dir attached - uses data in a postgres table via locationsXY store, but should be testable via shapefile)

<element name="locationType" type="iso19112:SI_LocationTypePropertyType"/>
      
  <complexType name="SI_LocationTypePropertyType">
    <sequence minOccurs="0">
      <element ref="iso19112:SI_LocationType"/>
    </sequence>
    <attributeGroup ref="gml:AssociationAttributeGroup"/>
  </complexType>

often these are constrained to be "byReference"

so an instance would look like this

<x>
  ...
<locationType xlink:href="http://my.org/featuretypecatalogue.xml#ft1002&quot;/&gt;
...
</x>

in the schema mappings file we have:

<AttributeMapping>
  <targetAttribute>SI_LocationInstance/locationType</targetAttribute>
  <sourceExpression>
    <OCQL>featurecode</OCQL>
  </sourceExpression>
</AttributeMapping>

which produces:

<iso19112:locationType />

or using an explicit mapping:
  <targetAttribute>SI_LocationInstance/locationType/@xlink:href</targetAttribute>

fails (with or with the xlink: prefix)

with logs saying:

    [java] Caused by: java.lang.IllegalArgumentException: attribute @href not found in http://www.opengis.net/iso19112:locationType

NB this pattern is common when creating an application schema using the ISO19118 rules (and thus INSPIRE, FGDC etc domains are affected)

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