Hi,
I just wrote a simple WPS client with geotools for GeoServer. I used
the same code in the geotools website:
http://docs.geotools.org/latest/userguide/unsupported/wps.html
I got the following error in WPSFactory():
Exception in thread "main" java.lang.NullPointerException
at
org.geotools.data.wps.WPSUtils.getLiteralTypeFromReference(WPSUtils.java:296)
at org.geotools.data.wps.WPSUtils.createInputParamMap(WPSUtils.java:183)
at
org.geotools.data.wps.WPSFactory.buildValuesFromProcessDescriptionType(WPSFactory.java:81)
at org.geotools.data.wps.WPSFactory.<init>(WPSFactory.java:68)
at au.org.aurin.wps.WPSClient.getCapabilities(WPSClient.java:108)
at au.org.aurin.wps.WPSClient.main(WPSClient.java:42)
After looking into WPSUtiles class I found out that problem is here:
if (literalData != null) {
String reference = literalData.getDataType().getReference();
type = getLiteralTypeFromReference(reference);
}
reference is null, so getLiteralTypeFromReference gives
java.lang.NullPointerException.
I checked the same code with 52N WPS and Deegree WPS, which works fine!
So, I believe that there is a bug in XML of DescribeProcess in
GeoServer as listed below as well:
These are part of XML of Describe process (SimpleBufferAlgorithm in
52N WPS and JTS:buffer in Geoserver WPS)
-------------- in 52N
<LiteralData>
<ns1:DataType ns1:reference="xs:double"
xmlns:ns1="http://www.opengis.net/ows/1.1"/>
<ns1:AnyValue xmlns:ns1="http://www.opengis.net/ows/1.1"/>
</LiteralData>
-------------- in GeoSrrver
<wps:LiteralData>
<ows:DataType>xs:double</ows:DataType>
<ows:AnyValue/>
</wps:LiteralData>
Regards,
Bahman
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