Hi, Andrea,
thanks for your quick response. In my class "KMLPPIO", I'm doing
something like:
public void encode(Object value, OutputStream os) throws IOException {
CRSAuthorityFactory factory = CRS.getAuthorityFactory(true);
CoordinateReferenceSystem targetCRS;
try {
targetCRS =
factory.createCoordinateReferenceSystem("EPSG:4326");
value = new
ReprojectingFeatureCollection((FeatureCollection)value, targetCRS);
Encoder encoder = new Encoder(new KMLConfiguration());
encoder.setIndenting(true);
encoder.encode((FeatureCollection) value, KML.kml, os);
} catch (NoSuchAuthorityCodeException e1) {
LOGGER.warning(e1.toString());
} catch (FactoryException e1) {
LOGGER.warning(e1.toString());
} catch (IOException e) {
LOGGER.warning(e.getMessage());
LOGGER.warning(e.getStackTrace().toString());
throw e;
}
}
.
This fails with:
23 Aug 11:20:56 ERROR [geoserver.ows] -
org.geoserver.wps.WPSException: An error occurred while encoding the
results of the process
at
org.geoserver.wps.response.ExecuteProcessResponse.writeComplex(ExecuteProcessResponse.java:212)
at
org.geoserver.wps.response.ExecuteProcessResponse.write(ExecuteProcessResponse.java:174)
at org.geoserver.ows.Dispatcher.response(Dispatcher.java:751)
at
org.geoserver.ows.Dispatcher.handleRequestInternal(Dispatcher.java:238)
(...)
Caused by: java.lang.RuntimeException: Failed to get property: id
at
org.geotools.xml.impl.GetPropertyExecutor.visit(GetPropertyExecutor.java:104)
at
org.geotools.xml.impl.BindingWalker$BindingExecutionChain.execute(BindingWalker.java:215)
at org.geotools.xml.impl.BindingWalker.walk(BindingWalker.java:181)
at
org.geotools.xml.impl.BindingVisitorDispatch.walk(BindingVisitorDispatch.java:46)
at
org.geotools.xml.impl.BindingVisitorDispatch.walk(BindingVisitorDispatch.java:31)
at org.geotools.xml.Encoder.encode(Encoder.java:861)
at org.geotools.xml.Encoder.encode(Encoder.java:566)
at org.geoserver.wps.ppio.KMLPPIO.encode(KMLPPIO.java:51)
at
org.geoserver.wps.CDataEncoderDelegate.encode(CDataEncoderDelegate.java:52)
at
org.geoserver.wps.response.ExecuteProcessResponse.writeComplex(ExecuteProcessResponse.java:210)
... 68 more
Caused by: java.lang.UnsupportedOperationException
at
org.geotools.data.store.ContentFeatureCollection.getID(ContentFeatureCollection.java:493)
at
org.geotools.feature.collection.DecoratingSimpleFeatureCollection.getID(DecoratingSimpleFeatureCollection.java:195)
at
org.geotools.kml.bindings.FeatureTypeBinding.getProperty(FeatureTypeBinding.java:193)
at
org.geotools.xml.impl.GetPropertyExecutor.visit(GetPropertyExecutor.java:102)
I do not know, how to avoid this.
Peter
On 08/27/2012 04:49 PM, Andrea Aime wrote:
On Mon, Aug 27, 2012 at 4:04 PM, Peter Hopfgartner
<[email protected] <mailto:[email protected]>>
wrote:
Hello
some of the WPS processes (like ReprojectProcess) bring an object of
class org.geotools.data.store.ContentFeatureCollection into my PPIO,
others an object of class
org.geotools.feature.DefaultFeatureCollection
(like BufferFeatureCollection).
Where is the returned class implementing GeoServerProcess, which
in one
case is BufferedFeatureCollection, in the other of type
ReprojectingFeatureCollection converted to
org.geotools.data.store.ContentFeatureCollection or
org.geotools.feature.DefaultFeatureCollection?
Long story short, never have PPIO handle a specific feature follection
implementation
class, those can change, always work against the
FatureCollection/SimpleFeatureCollection
interfaces
Cheers
Andrea
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Via Johann Kravogl-Str. 2
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