[Geoserver-users] Help me!!!!! App-schema Oracle DataAccess producing "null" prefix for namespaces in gsml:borehole

ssss · March 1, 2010, 2:08pm

Hi,

Please help me for my question that has confused me for two
weeks!!!!!!!!!!!!

I am using the latest app-schema with oracle for data access. I download
and test the example configuration files that contains gsml_GeologicUnit &
gsml_MappedFeature. It works very well. Through WFS, the data in Oracle can
be mapped to GeoSciML files correctly.

Thus I continue to try to implement the gsml:borehole by myself. I add a new
folder under the \workspaces\gsml. In the mapping file, I define all the
namespaces like below:

    <namespaces>
        <Namespace>
            <prefix>gml</prefix>
            <uri>http://www.opengis.net/gml</uri>
        </Namespace>
        <Namespace>
            <prefix>gsml</prefix>
            <uri>urn:cgi:xmlns:CGI:GeoSciML:2.0</uri>
        </Namespace>
        <Namespace>
            <prefix>xlink</prefix>
            <uri>http://www.w3.org/1999/xlink</uri>
        </Namespace>
        <Namespace>
            <prefix>sa</prefix>
            <uri>http://www.opengis.net/sampling/1.0</uri>
        </Namespace>
        <Namespace>
            <prefix>om</prefix>
            <uri>http://www.opengis.net/om/1.0.0</uri>
        </Namespace>
        <Namespace>
            <prefix>cv</prefix>
            <uri>http://www.opengis.net/cv/0.2.1</uri>
        </Namespace>
        <Namespace>
            <prefix>swe</prefix>
            <uri>http://www.opengis.net/swe/1.0.1</uri>
        </Namespace>
        <Namespace>
            <prefix>sml</prefix>
            <uri>http://www.opengis.net/sensorML/1.0.1</uri>
        </Namespace>
    </namespaces>

I don't define a FeatureType, instead I just defile as below:

<catalog>../../../schemas/catalog.xml</catalog>

    <targetTypes>
        <FeatureType>

<schemaUri>http://www.geosciml.org/geosciml/2.0/xsd/geosciml.xsd</schemaUri>
        </FeatureType>
    </targetTypes>

In the mapping part, only three elements are mapped as below:

                <AttributeMapping>
                    <targetAttribute>
                        gsml:Borehole
                    </targetAttribute>
                    <idExpression>
                        <OCQL>strConcat('objectid.',SHAPENR)</OCQL>
                    </idExpression>
                </AttributeMapping>
                <AttributeMapping>
                    <targetAttribute>
                        gml:name
                      </targetAttribute>
                    <sourceExpression>
                        <OCQL>BHOLE_NO</OCQL>
                    </sourceExpression>
                </AttributeMapping>
                <AttributeMapping>
                    <targetAttribute>
                        gsml:Borehole/sa:length
                    </targetAttribute>
                    <sourceExpression>
                        <OCQL>LENGTH</OCQL>
                    </sourceExpression>
                    <ClientProperty>
                        <name>uom</name>
                        <value>'urn:ogc:def:uom:UCUM:m'</value>
                    </ClientProperty>
                </AttributeMapping>

OK, it is quite simple. I don't get any error message when starting the
tomcat 6.0. But when I access

http://localhost:8080/geoserver/wfs?request=GetFeature&typeName=gsml:Borehole

I find only the prefix with 'gml' & 'gsml' are correct, however the 'sa'
prefix is replaced by 'null'. I attach a picture below.

http://old.nabble.com/file/p27743964/borehole.jpg

Thus, I think my questions are:

1. Is there any example configuration for gsml:borehole? If anyone has map
the gsml:borehole successfully, could you help me?

2. Why all namespaces expect for 'gml' or 'gsml' defined in the mapping file
are not correct? Is this a bug? Or because of my configuration?

Thank you very much if you can help me!!!!!

Ying

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robert.woodcock · March 2, 2010, 2:50am

Hi,

1. Is there any example configuration for gsml:borehole? If anyone has map

the gsml:borehole successfully, could you help me?

The AuScope Team (developers of app-schema, Ben C-D, Rini A, et al) are working on this right now. A suitable test and sample configuration are being put together at the same time. The GML3 bindings needed some work along with polymorphism support. Fingers crossed it will be resolved in the next couple of weeks.

2. Why all namespaces expect for 'gml' or 'gsml' defined in the mapping file

are not correct? Is this a bug? Or because of my configuration?

I think you've hit GEOT-2932 - http://jira.codehaus.org/browse/GEOT-2932

No doubt Ben or Rini or one of the more technical people of my team will respond shortly with more details for you.

Regards,

Rob

Dr Robert Woodcock
CSIRO
ARRC (Australian Resources Research Centre)
26 Dick Perry Avenue, Kensington WA 6151, Australia
PO Box 1130, Bentley WA 6102, Australia
Ph: 08 6436.8780 | E: Robert.Woodcock@anonymised.com | W: www.csiro.au

-----Original Message-----
From: yw [mailto:huanxuefeitian@anonymised.com]
Sent: Monday, 1 March 2010 10:08 PM
To: geoserver-users@lists.sourceforge.net
Subject: [Geoserver-users] Help me!!!!! App-schema Oracle DataAccess producing "null" prefix for namespaces in gsml:borehole