Re: [Geotools-gt2-users] Problems to parse GML3 with geotools

[Jody G. <jod...@gm...>]

Hi Felix:

Based on the error message it is trying to find a binding for something
called n52:TestGML. Reading that it looks like n52 :TestGML extends
n52:FeatureType
- have you defined n52:FeatureType?

For the GeoTools parser to work you need to define everything, it will
build up a model of your schema in memory, associated a "binding" with each
entry in the model (such as n52:FeatureType) and use these bindings to turn
XML into Java objects.

Out of the box it turns standard XML sequences into lists, and complexTypes
into a java.util.Map - so you should get *something*. But only if your
schema completes.

For more information I strongly recommend you go through the docs, and
tutorial.

- http://docs.geotools.org/latest/userguide/library/xml/internal/index.html
-
http://docs.geotools.org/latest/userguide/library/xml/internal/overview.html
-
http://docs.geotools.org/latest/userguide/library/xml/internal/tutorial.html

The code generator section used above is a out out of date (it was just
used to make java beans to practice binding to).

--
Jody Garnett

On 12 December 2014 at 05:01, Felix Scholtyssek <fel...@di...>
wrote:
>
> Hi everybody,
>
> I have a pproblem with the GML 3 parser from geotools.
> I have an GML and a schema, but in the method getImports I get an error
> message, and no result object.
>
> Can somebody find a solution for this problem?
>
> The Error message is:
> Dez 12, 2014 1:54:45 PM org.geotools.xml.Schemas getImports
> INFORMATION: Schema import wasn't resolved: http://www.opengis.net/gml
> declared location: http://schemas.opengis.net/gml/3.1.1/base/gml.xsd
> Dez 12, 2014 1:54:45 PM org.geotools.xml.impl.ParserHandler startElement
> INFORMATION: parser configuration specified schema:
> 'http://www.openplans.org/n52', but instance document does not reference
> this schema.
>
> 2014-12-12 13:54:45,660 [pool-1-thread-4] ERROR
> org.n52.wps.io.datahandler.parser.GML3BasicParser: Exception while
> handling parsed GML.
> org.xml.sax.SAXException: Handler for n52:TestGML could not be found.
>         at
> org.geotools.xml.impl.ParserHandler.startElement(ParserHandler.java:676)
> ~[gt-xsd-core-8.7.jar:na]
>
>
> Here is my GML:
> <gml:FeatureCollection
> xmlns:gml="http://www.opengis.net/gml"
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
> xsi:schemaLocation="
> http://www.opengis.net/gml
> http://schemas.opengis.net/gml/3.1.1/base/feature.xsd
> http://www.openplans.org/n52
> http://localhost:8282/wps-demo-dev/demos/testGML.xsd">
>         <gml:featureMember>
>                 <n52:TestGML xmlns:n52="http://www.openplans.org/n52"
> gml:id="ID0">
>                         <gml:boundedBy>
>                                 <gml:Envelope srsDimension="2"
> srsName="http://www.opengis.net/gml/srs/epsg.xml#4326">
>                                         <gml:lowerCorner>10.0
> 10.0</gml:lowerCorner>
>                                         <gml:upperCorner>10.0
> 10.0</gml:upperCorner>
>                                 </gml:Envelope>
>                         </gml:boundedBy>
>                         <n52:GEOMETRY>
>                                 <gml:MultiPoint srsDimension="2"
> srsName="http://www.opengis.net/gml/srs/epsg.xml#4326">
>                                         <gml:pointMember>
>                                                 <gml:Point
> srsDimension="2">
>                                                         <gml:pos>10.0
> 10.0</gml:pos>
>                                                 </gml:Point>
>                                         </gml:pointMember>
>                                 </gml:MultiPoint>
>                         </n52:GEOMETRY>
>                 </n52:TestGML>
>         </gml:featureMember>
> </gml:FeatureCollection>
>
>
> Here is my schema:
> <?xml version="1.0" encoding="ISO-8859-1"?>
> <xs:schema
> targetNamespace="http://localhost:8282/wps-demo-dev/demos/TestGML"
> xmlns:xs="http://www.w3.org/2001/XMLSchema"
> xmlns:n52="http://www.openplans.org/n52"
>         elementFormDefault="qualified" version="1.0">
>         <xs:import namespace="http://www.opengis.net/gml"
> schemaLocation="http://schemas.opengis.net/gml/3.1.1/base/gml.xsd" />
>         <xs:element name="TestGML" type="n52:FeatureType"
> substitutionGroup="gml:_Feature" />
>         <xs:complexType name="FeatureType">
>                 <xs:complexContent>
>                         <xs:extension base="gml:AbstractFeatureType">
>                                 <xs:sequence>
>                                         <xs:element name="GEOMETRY"
> type="gml:MultiPointPropertyType">
>                                         </xs:element>
>                                 </xs:sequence>
>                         </xs:extension>
>                 </xs:complexContent>
>         </xs:complexType>
> </xs:schema>
>
>
> Thanks for this.
>
> Felix Scholtyssek
>
>
> ------------------------------------------------------------------------------
> Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server
> from Actuate! Instantly Supercharge Your Business Reports and Dashboards
> with Interactivity, Sharing, Native Excel Exports, App Integration & more
> Get technology previously reserved for billion-dollar corporations, FREE
>
> http://pubads.g.doubleclick.net/gampad/clk?id=164703151&iu=/4140/ostg.clktrk
> _______________________________________________
> GeoTools-GT2-Users mailing list
> Geo...@li...
> https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users
>