Hi Maciek, Thanks for the feedback. However, the error you point out seems the one printed to the standard output. The log printed into the .../stanbol/logs/error.log file should indicate the correct error. That is the default target log file. Anyway, Contenthub registers the enhancement graph to the OSGi environment in the initialization now. So, you should be able to execute SPARQL queries on it.
Best, Suat On 09/07/2012 04:00 PM, Maciek Sykulski wrote: > Hi Sergio, > > Thank you, this was indeed the problem, I should've tested it better. > > However, the server log messages did not point to ldpath program being > wrong. > Deducing from this server error message, I suppose that something may be > wrong with logging Exeptions: > > Aug 9, 2012 6:02:53 PM com.sun.jersey.spi.container.ContainerResponse >> logException >> SEVERE: Mapped exception to response: 500 (Internal Server Error) >> javax.ws.rs.WebApplicationException: com.sun.jersey.api.MessageException: >> A message body writer for Java class org.apache.stanbol.contenthub. >> servicesapi.ldpath.LDPathException, and Java type class >> org.apache.stanbol.contenthub.servicesapi.ldpath.LDPathException, and >> MIME media type application/octet-stream was not found >> at com.sun.jersey.spi.container.ContainerResponse.write( >> ContainerResponse.java:285) >> > Thanks, > Maciek > > On Thu, Sep 6, 2012 at 8:51 AM, Sergio Fernández < > sergio.fernan...@salzburgresearch.at> wrote: > >> Hi, >> >> On 09/05/2012 08:00 PM, Maciek Sykulski wrote: >> >>> *3.* I cannot submit any *ldpath program* to contenthub. Any submit >>> request >>> >>> directed at POST:/contenthub/ldpath/**program yields: >>> >>> curl -i -X POST -d "name=universities&program= \ >>> @prefix dbp-ont : ; \ >>> city = dbp-ont:city / rdfs:label :: xsd:string; \ >>> country = dbp-ont:country / rdfs:label :: >>> xsd:string; \ >>> president = dbp-ont:president / rdfs:label :: >>> xsd:string; \ >>> numberOfStudent = dbp-ont:numberOfStudents :: >>> xsd:int;" >>> >>> "http://localhost:8080/**contenthub/ldpath/program<http://localhost:8080/contenthub/ldpath/program> >>> " >>> HTTP/1.1 500 Internal Server Error >>> >> Looks that the prefix declaration uses a wrong LDPath syntax, the >> namespace is missing. You'd need to use something like: >> >> @prefix dbp-ont : <http://dbpedia.org/ontology/> ; >> >> and it should work. >> >> For further details, please check the path language specification: >> >> http://code.google.com/p/**ldpath/wiki/PathLanguage#** >> Namespace_Definitions<http://code.google.com/p/ldpath/wiki/PathLanguage#Namespace_Definitions> >> >> Kind regards, >> >> -- >> Sergio Fernández >> Salzburg Research >> +43 662 2288 318 >> Jakob-Haringer Strasse 5/II >> A-5020 Salzburg (Austria) >> http://www.salzburgresearch.at >> > > > > >> ...and our Stanbol server logs as follows: >> Aug 9, 2012 6:02:53 PM com.sun.jersey.spi.container.servlet.WebComponent >> filterFormParameters >> WARNING: A servlet POST request, to the URI >> http://localhost:8080/contenthub/ldpath/program, contains form parameters >> in the request body but the request body has be >> en consumed by the servlet or a servlet filter accessing the request >> parameters. Only resource methods using @FormParam will work as expected. >> Resource methods consu >> ming the request body by other means will not work as expected. >> Aug 9, 2012 6:02:53 PM com.sun.jersey.spi.container.ContainerResponse >> write >> SEVERE: A message body writer for Java class org.apache.stanbol.contenthub. >> servicesapi.ldpath.LDPathException, and Java type class >> org.apache.stanbol.contenthub.serv >> icesapi.ldpath.LDPathException, and MIME media type >> application/octet-stream was not found >> Aug 9, 2012 6:02:53 PM com.sun.jersey.spi.container.ContainerResponse >> write >> SEVERE: The registered message body writers compatible with the MIME media >> type are: >> */* -> >> com.sun.jersey.core.impl.provider.entity.FormProvider >> com.sun.jersey.core.impl.provider.entity.MimeMultipartProvider >> com.sun.jersey.core.impl.provider.entity.StringProvider >> com.sun.jersey.core.impl.provider.entity.ByteArrayProvider >> com.sun.jersey.core.impl.provider.entity.FileProvider >> com.sun.jersey.core.impl.provider.entity.InputStreamProvider >> com.sun.jersey.core.impl.provider.entity.DataSourceProvider >> com.sun.jersey.core.impl.provider.entity.XMLJAXBElementProvider$General >> com.sun.jersey.core.impl.provider.entity.ReaderProvider >> com.sun.jersey.core.impl.provider.entity.DocumentProvider >> com.sun.jersey.core.impl.provider.entity.StreamingOutputProvider >> com.sun.jersey.core.impl.provider.entity.SourceProvider$SourceWriter >> com.sun.jersey.server.impl.template.ViewableMessageBodyWriter >> com.sun.jersey.core.impl.provider.entity.XMLRootElementProvider$General >> com.sun.jersey.core.impl.provider.entity.XMLListElementProvider$General >> application/octet-stream -> >> com.sun.jersey.core.impl.provider.entity.ByteArrayProvider >> com.sun.jersey.core.impl.provider.entity.FileProvider >> com.sun.jersey.core.impl.provider.entity.InputStreamProvider >> com.sun.jersey.core.impl.provider.entity.DataSourceProvider >> com.sun.jersey.core.impl.provider.entity.StreamingOutputProvider >> Aug 9, 2012 6:02:53 PM com.sun.jersey.spi.container.ContainerResponse >> logException >> SEVERE: Mapped exception to response: 500 (Internal Server Error) >> javax.ws.rs.WebApplicationException: com.sun.jersey.api.MessageException: >> A message body writer for Java class org.apache.stanbol.contenthub. >> servicesapi.ldpath.LDPathException, and Java type class >> org.apache.stanbol.contenthub.servicesapi.ldpath.LDPathException, and >> MIME media type application/octet-stream was not found >> at com.sun.jersey.spi.container.ContainerResponse.write( >> ContainerResponse.java:285) >> at com.sun.jersey.server.impl.application.WebApplicationImpl._ >> handleRequest(WebApplicationImpl.java:1451) >> at com.sun.jersey.server.impl.application.WebApplicationImpl. >> handleRequest(WebApplicationImpl.java:1363) >> at com.sun.jersey.server.impl.application.WebApplicationImpl. >> handleRequest(WebApplicationImpl.java:1353) >> at com.sun.jersey.spi.container.servlet.WebComponent.service( >> WebComponent.java:414) >> at com.sun.jersey.spi.container.servlet.ServletContainer. >> service(ServletContainer.java:537) >> at com.sun.jersey.spi.container.servlet.ServletContainer. >> service(ServletContainer.java:708) >> at javax.servlet.http.HttpServlet.service(HttpServlet.java:820) >> at org.apache.felix.http.base.internal.handler. >> ServletHandler.doHandle(ServletHandler.java:96) >> at org.apache.felix.http.base.internal.handler. >> ServletHandler.handle(ServletHandler.java:79) >> at org.apache.felix.http.base.internal.dispatch. >> ServletPipeline.handle(ServletPipeline.java:42) >> at org.apache.felix.http.base.internal.dispatch. >> InvocationFilterChain.doFilter(InvocationFilterChain.java:49) >> at org.apache.felix.http.base.internal.dispatch. >> HttpFilterChain.doFilter(HttpFilterChain.java:33) >> at org.apache.stanbol.commons.httpqueryheaders.impl. >> QueryHeadersFilter.doFilter(QueryHeadersFilter.java:75) >> at org.apache.felix.http.base.internal.handler. >> FilterHandler.doHandle(FilterHandler.java:88) >> at org.apache.felix.http.base.internal.handler. >> FilterHandler.handle(FilterHandler.java:76) >> at org.apache.felix.http.base.internal.dispatch. >> InvocationFilterChain.doFilter(InvocationFilterChain.java:47) >> at org.apache.felix.http.base.internal.dispatch. >> HttpFilterChain.doFilter(HttpFilterChain.java:33) >> at org.apache.felix.http.base.internal.handler. >> FilterHandler.handle(FilterHandler.java:78) >> at org.apache.felix.http.base.internal.dispatch. >> InvocationFilterChain.doFilter(InvocationFilterChain.java:47) >> at org.apache.felix.http.base.internal.dispatch. >> HttpFilterChain.doFilter(HttpFilterChain.java:33) >> at org.apache.felix.http.base.internal.dispatch. >> FilterPipeline.dispatch(FilterPipeline.java:48) >> at org.apache.felix.http.base.internal.dispatch.Dispatcher. >> dispatch(Dispatcher.java:39) >> at org.apache.felix.http.base.internal.DispatcherServlet. >> service(DispatcherServlet.java:67) >> at javax.servlet.http.HttpServlet.service(HttpServlet.java:820) >> at org.mortbay.jetty.servlet.ServletHolder.handle( >> ServletHolder.java:511) >> at org.mortbay.jetty.servlet.ServletHandler.handle( >> ServletHandler.java:390) >> at org.mortbay.jetty.servlet.SessionHandler.handle( >> SessionHandler.java:182) >> at org.mortbay.jetty.handler.ContextHandler.handle( >> ContextHandler.java:765) >> at org.mortbay.jetty.handler.HandlerWrapper.handle( >> HandlerWrapper.java:152) >> at org.mortbay.jetty.Server.handle(Server.java:326) >> at org.mortbay.jetty.HttpConnection.handleRequest( >> HttpConnection.java:542) >> at org.mortbay.jetty.HttpConnection$RequestHandler. >> content(HttpConnection.java:943) >> at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:756) >> at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser. >> java:218) >> at org.mortbay.jetty.HttpConnection.handle( >> HttpConnection.java:404) >> at org.mortbay.io.nio.SelectChannelEndPoint.run( >> SelectChannelEndPoint.java:410) >> at org.mortbay.thread.QueuedThreadPool$PoolThread. >> run(QueuedThreadPool.java:582) >> Caused by: com.sun.jersey.api.MessageException: A message body writer for >> Java class org.apache.stanbol.contenthub.servicesapi.ldpath.LDPathException, >> and Java type class >> org.apache.stanbol.contenthub.servicesapi.ldpath.LDPathException, >> and MIME media type application/octet-stream was not found >> ... 38 more >> >>
