GML3 ClassCastException when parsing Polygon with Ring as exterior
------------------------------------------------------------------
Key: GEOT-1754
URL: http://jira.codehaus.org/browse/GEOT-1754
Project: GeoTools
Issue Type: Bug
Affects Versions: 2.4.1
Environment: Sun JDK 1.5.0.15
Reporter: Michael Rudolf
Hi,
I get a ClassCastException, the stack trace of which is shown below, when
parsing the following GML3 string:
<gml:Polygon
xmlns:gml="http://www.opengis.net/gml";><gml:exterior><gml:Ring><gml:curveMember><gml:Curve><gml:segments><gml:LineStringSegment><gml:pos
srsName="urn:adv:crs:DE_DHDN_3GK3">3353124.446 5533265.243</gml:pos><gml:pos
srsName="urn:adv:crs:DE_DHDN_3GK3">3353137.958
5533276.370</gml:pos></gml:LineStringSegment><gml:LineStringSegment><gml:pos
srsName="urn:adv:crs:DE_DHDN_3GK3">3353137.958 5533276.370</gml:pos><gml:pos
srsName="urn:adv:crs:DE_DHDN_3GK3">3353158.333
5533251.626</gml:pos></gml:LineStringSegment><gml:LineStringSegment><gml:pos
srsName="urn:adv:crs:DE_DHDN_3GK3">3353158.333 5533251.626</gml:pos><gml:pos
srsName="urn:adv:crs:DE_DHDN_3GK3">3353145.043
5533240.230</gml:pos></gml:LineStringSegment><gml:LineStringSegment><gml:pos
srsName="urn:adv:crs:DE_DHDN_3GK3">3353145.043 5533240.230</gml:pos><gml:pos
srsName="urn:adv:crs:DE_DHDN_3GK3">3353124.446
5533265.243</gml:pos></gml:LineStringSegment></gml:segments></gml:Curve></gml:curveMember></gml:Ring></gml:exteri
or></gml:Polygon>
Caused by: java.lang.ClassCastException: java.lang.String
at
org.geotools.gml3.bindings.PolygonTypeBinding.parse(PolygonTypeBinding.java:90)
at org.geotools.xml.impl.ParseExecutor.visit(ParseExecutor.java:130)
... 36 more
The code I am using for parsing the above XML fragment is the following
(exception handling omitted):
import org.geotools.xml.Configuration;
import org.geotools.xml.Parser;
import org.geotools.gml3.GMLConfiguration;
...
Configuration configuration = new GMLConfiguration();
Parser parser = new Parser(configuration);
geometry = (Geometry)parser.parse(new StringReader(geometryString));
...
When looking at the source code of the class causing the exception,
org.geotools.gml3.bindings.PolygonTypeBinding, I can spot the following:
public Object parse(ElementInstance instance, Node node, Object value)
throws Exception {
//TODO: schema allows no exterior ring, but what the heck is that all
about ?
LinearRing exterior = (LinearRing) node.getChildValue("exterior");
LinearRing[] interior = null;
if (node.hasChild("interior")) {
List list = node.getChildValues("interior");
interior = (LinearRing[]) list.toArray(new LinearRing[list.size()]);
}
return gFactory.createPolygon(exterior, interior);
}
It seems to me as if Rings in Polygons are not supported, only LinearRings are
expected. However, there are lots of Rings inside Polygons in the data I get
and also in the data one can find on the internet - what shall I do? Is this a
bug in GeoTools or in the data I get?
Thanks very much in advance for the help!
Best regards,
Michael
--
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators:
http://jira.codehaus.org/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira
-------------------------------------------------------------------------
Check out the new SourceForge.net Marketplace.
It's the best place to buy or sell services for
just about anything Open Source.
http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace
_______________________________________________
Geotools-devel mailing list
Geotools-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/geotools-devel
