Re: [Geoserver-users] Problem with blob, geoserver 1.7.3

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Marianna Borriello ha scritto:
> Hi,
> I'm using geoserver 1.7.3 and I have a feature type (a table from an 
> oracle datastore) with a blob field.
> When I do a wfs query on any feature type I get the following exception:
> 
> 0 apr 16:11:30 ERROR [geoserver.ows] - java.lang.NullPointerException: 
> Could not find a type for property:
> CAMPOBLOB of type: java.lang.Object
>     at
> org.geoserver.wfs.xml.FeatureTypeSchemaBuilder.buildSchemaContent(FeatureTyp 
> 
> eSchemaBuilder.java:317)
>     at
> org.geoserver.wfs.xml.FeatureTypeSchemaBuilder.build(FeatureTypeSchemaBuilde 
> 
> r.java:153)
>     at
> org.geoserver.wfs.xml.FeatureTypeSchemaBuilder.addApplicationTypes(FeatureTy 
> 
> peSchemaBuilder.java:204)
>     at org.geoserver.wfs.xml.v1_1_0.WFS.buildSchema(WFS.java:308)
>     at org.geotools.xml.XSD.getSchema(XSD.java:127)
>     at
> org.geotools.xml.SchemaLocator.locateSchema(SchemaLocator.java:92)
>     at
> org.geotools.xml.impl.ParserHandler.startElement(ParserHandler.java:289)
>     at org.apache.xerces.parsers.AbstractSAXParser.startElement(Unknown
> Source)
>     at
> org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown
> Source)
>     at
> org.apache.xerces.impl.XMLNSDocumentScannerImpl$NSContentDispatcher.scanRoot 
> 
> ElementHook(Unknown Source)
>     at
> org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatc 
> 
> her.dispatch(Unknown Source)
>     at
> org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown
> Source)
>     at org.apache.xerces.parsers.XML11Configuration.parse(Unknown
> Source)
>     at org.apache.xerces.parsers.DTDConfiguration.parse(Unknown Source)
>     at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
>     at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
>     at org.geotools.xml.Parser.parse(Parser.java:180)
>     at
> org.geoserver.wfs.xml.v1_1_0.WfsXmlReader.read(WfsXmlReader.java:78)
>     at
> org.geoserver.ows.Dispatcher.parseRequestXML(Dispatcher.java:1147)
>     at org.geoserver.ows.Dispatcher.dispatch(Dispatcher.java:437)
>     at
> org.geoserver.ows.Dispatcher.handleRequestInternal(Dispatcher.java:208)
>     at
> org.springframework.web.servlet.mvc.AbstractController.handleRequest(Abstrac 
> 
> tController.java:153)
>     at
> org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(Si 
> 
> mpleControllerHandlerAdapter.java:48)
>     at
> org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServl 
> 
> et.java:875)
>     at
> org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServle 
> 
> t.java:809)
>     at
> org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkSer 
> 
> vlet.java:571)
>     at
> org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.jav 
> 
> a:511)
>     at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
>     at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
>     at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application 
> 
> FilterChain.java:269)
>     at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh 
> 
> ain.java:188)
>     at
> org.vfny.geoserver.filters.SetCharacterEncodingFilter.doFilter(SetCharacterE 
> 
> ncodingFilter.java:108)
>     at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application 
> 
> FilterChain.java:215)
>     at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh 
> 
> ain.java:188)
>     at
> org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterCh 
> 
> ainProxy.java:264)
>     at
> org.acegisecurity.intercept.web.FilterSecurityInterceptor.invoke(FilterSecur 
> 
> ityInterceptor.java:107)
>     at
> org.acegisecurity.intercept.web.FilterSecurityInterceptor.doFilter(FilterSec 
> 
> urityInterceptor.java:72)
>     at
> org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterCh 
> 
> ainProxy.java:274)
>     at
> org.acegisecurity.ui.ExceptionTranslationFilter.doFilter(ExceptionTranslatio 
> 
> nFilter.java:110)
>     at
> org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterCh 
> 
> ainProxy.java:274)
>     at
> org.acegisecurity.providers.anonymous.AnonymousProcessingFilter.doFilter(Ano 
> 
> nymousProcessingFilter.java:125)
>     at
> org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterCh 
> 
> ainProxy.java:274)
>     at
> org.acegisecurity.ui.basicauth.BasicProcessingFilter.doFilter(BasicProcessin 
> 
> gFilter.java:178)
>     at
> org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterCh 
> 
> ainProxy.java:274)
>     at
> org.acegisecurity.context.HttpSessionContextIntegrationFilter.doFilter(HttpS 
> 
> essionContextIntegrationFilter.java:229)
>     at
> org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterCh 
> 
> ainProxy.java:274)
>     at
> org.acegisecurity.util.FilterChainProxy.doFilter(FilterChainProxy.java:148)
>     at
> org.acegisecurity.util.FilterToBeanProxy.doFilter(FilterToBeanProxy.java:98) 
> 
>     at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application 
> 
> FilterChain.java:215)
>     at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh 
> 
> ain.java:188)
>     at
> org.geoserver.filters.LoggingFilter.doFilter(LoggingFilter.java:73)
>     at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application 
> 
> FilterChain.java:215)
>     at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh 
> 
> ain.java:188)
>     at
> org.geoserver.filters.ReverseProxyFilter.doFilter(ReverseProxyFilter.java:16 
> 
> 3)
>     at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application 
> 
> FilterChain.java:215)
>     at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh 
> 
> ain.java:188)
>     at org.geoserver.filters.GZIPFilter.doFilter(GZIPFilter.java:47)
>     at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application 
> 
> FilterChain.java:215)
>     at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh 
> 
> ain.java:188)
>     at
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja 
> 
> va:213)
>     at
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja 
> 
> va:174)
>     at
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127 
> 
> )
>     at
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117 
> 
> )
>     at
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java 
> 
> :108)
>     at
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151)
>     at
> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874)
>     at
> org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processC 
> 
> onnection(Http11BaseProtocol.java:665)
>     at
> org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.jav 
> 
> a:528)
>     at
> org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWo 
> 
> rkerThread.java:81)
>     at
> org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.jav 
> 
> a:689)
>     at java.lang.Thread.run(Thread.java:595)
> 
> 
> What does it mean?

That we have no support whatsoever for blob fields. In theory they 
should be base64 encoded in gml, but you're the first one to report
a need to deal with blob fields.

Do you really need that? Otherwise you can hide the blob by building
a view and publishing it instead.
If you really need it, please open a improvement report on
jira.codehaus.org

Cheers
Andrea

-- 
Andrea Aime
OpenGeo - http://opengeo.org
Custom development for your GeoServer needs