Hi,
Best thing you can do is to catch the geometry which is returned by your query.
For me the error says that the returning feature collection is something that
FeatureCollectionDecorator cannot turn into a simple feature collection. I
would guess that for example feature collection containing both points and
polygons could make such trouble.
If your data are in PostGIS you can set PostgreSQL to log all the incoming SQL.
Perhaps by setting Geoserver logging level from the global settings into
GEOTOOLS_DEVELOPER_LOGGING you can collect that information into Geoserver log.
Once you can have captured the actual SQL resend it with PSQL command line and
see what comes back.
-Jukka Rahkonen-
________________________________
Gavin wrote:
this is the error from the geoserver log
2012-06-20 15:39:52,386 ERROR [geoserver.ows] -
java.lang.ClassCastException:
org.geoserver.wms.featureinfo.FeatureCollectionDecorator cannot be cast to
org.geotools.data.simple.SimpleFeatureCollection
at
org.geoserver.wms.featureinfo.GML2FeatureInfoOutputFormat.write(GML2FeatureInfoOutputFormat.java:77)
at
org.geoserver.wms.featureinfo.GetFeatureInfoResponse.write(GetFeatureInfoResponse.java:108)
at org.geoserver.ows.Dispatcher.response(Dispatcher.java:909)
at
org.geoserver.ows.Dispatcher.handleRequestInternal(Dispatcher.java:276)
at
org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:153)
at
org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:48)
at
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:923)
at
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852)
at
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882)
at
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:778)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.geoserver.filters.ThreadLocalsCleanupFilter.doFilter(ThreadLocalsCleanupFilter.java:23)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.geoserver.filters.SpringDelegatingFilter$Chain.doFilter(SpringDelegatingFilter.java:74)
at
org.geoserver.filters.SpringDelegatingFilter.doFilter(SpringDelegatingFilter.java:45)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.geoserver.platform.AdvancedDispatchFilter.doFilter(AdvancedDispatchFilter.java:49)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.vfny.geoserver.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:109)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:311)
at
org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:68)
at
org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:116)
at
org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83)
at
org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:72)
at
org.geoserver.security.filter.GeoServerCompositeFilter.doFilter(GeoServerCompositeFilter.java:91)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
at
org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:68)
at
org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113)
at
org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:72)
at
org.geoserver.security.filter.GeoServerCompositeFilter.doFilter(GeoServerCompositeFilter.java:91)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
at
org.geoserver.security.filter.GeoServerAnonymousAuthenticationFilter.doFilter(GeoServerAnonymousAuthenticationFilter.java:53)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
at
org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:68)
at
org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:150)
at
org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:72)
at
org.geoserver.security.filter.GeoServerCompositeFilter.doFilter(GeoServerCompositeFilter.java:91)
at
org.geoserver.security.filter.GeoServerBasicAuthenticationFilter.doFilter(GeoServerBasicAuthenticationFilter.java:82)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
at
org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:68)
at
org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87)
at
org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:72)
at
org.geoserver.security.filter.GeoServerCompositeFilter.doFilter(GeoServerCompositeFilter.java:91)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
at
org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:173)
at
org.geoserver.security.GeoServerSecurityFilterChainProxy.doFilter(GeoServerSecurityFilterChainProxy.java:97)
at
org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)
at
org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:259)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.geoserver.filters.LoggingFilter.doFilter(LoggingFilter.java:71)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.geoserver.filters.GZIPFilter.doFilter(GZIPFilter.java:41)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.geoserver.filters.SessionDebugFilter.doFilter(SessionDebugFilter.java:46)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
at
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Thread.java:619)
On 20 June 2012 10:43, Gavin <ga...@gnomeit.com<mailto:ga...@gnomeit.com>>
wrote:
Hi
Sorry Thought I had included the geoserver version information at the bottom
of the original email
Gavin
*
Build Information
* Version 2.2-SNAPSHOT
* Subversion Revision 17075
* Build Date 14-May-2012 19:13
* GeoTools Version 8-SNAPSHOT (rev 38723
The full request is
unitPicker = new OpenLayers.Control.WMSGetFeatureInfo({
url: 'http://geology.data.vic.gov.au/services/mapping/ows',
layerUrls: ["http://geology.data.vic.gov.au/services/mapping/ows";],
title: 'Identify features by clicking',
queryVisible: true,
layers: [unitLayer],
} );
unitPicker.infoFormat = 'application/vnd.ogc.gml';
unitPicker.events.register("getfeatureinfo", this, pickUnitid);
If I use infoFormat = "text/plain" it all works
If I use any xml based format for infoFormat it errors
This works fine on another instance
Version 2.1.1
Subversion Revision 16080
Build Date 23-Jun-2011 10:45
GeoTools Version 2.7.2 (rev 37473)
On 19 June 2012 15:56, Andrea Aime
<andrea.a...@geo-solutions.it<mailto:andrea.a...@geo-solutions.it>> wrote:
On Tue, Jun 19, 2012 at 1:13 AM, Gavin
<ga...@gnomeit.com<mailto:ga...@gnomeit.com>> wrote:
Hi
When I do a WMSGetFeatureInfo request from open layers to geoserver using
unitPicker.infoFormat = 'application/vnd.ogc.gml';
Geoserver returns a <ServiceException>
java.lang.ClassCastException:
org.geoserver.wms.featureinfo.FeatureCollectionDecorator cannot be cast to
org.geotools.data.simple.SimpleFeatureCollection
You should provide more information about your case. Just to get started:
* GeoServer version
* are you querying a app-schema layer?
* the GetFeatureInfo URL used (you should be able to grab it using firebug or
other web dev tools)
Cheers
Andrea
--
Ing. Andrea Aime
GeoSolutions S.A.S.
Tech lead
Via Poggio alle Viti 1187
55054 Massarosa (LU)
Italy
phone: +39 0584 962313<tel:%2B39%200584%20962313>
fax: +39 0584 962313<tel:%2B39%200584%20962313>
mob: +39 339 8844549<tel:%2B39%C2%A0339%208844549>
http://www.geo-solutions.it
http://geo-solutions.blogspot.com/
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http://www.linkedin.com/in/andreaaime
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