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Posted to users@jackrabbit.apache.org by Jeremias Maerki <de...@jeremias-maerki.ch> on 2008/06/04 16:09:05 UTC

Namespaces and Session.getImportContentHandler()

I'm trying to import arbitrary XML content through
Session.getImportContentHandler(). It works fine if I have XML content
that is fully in the default namespace. But if there's mixed-namespace content
I get the following error when calling Session.save():

ERROR - failed to write bundle: 1b773746-508f-4176-ab3f-6bbf3d1b6bd9
java.lang.IllegalStateException: URI not valid? javax.jcr.NamespaceException: URI http://www.w3.org/1999/02/22-rdf-syntax-ns# is not registered.
	at org.apache.jackrabbit.core.persistence.bundle.util.NamespaceIndex.stringToIndex(NamespaceIndex.java:55)
	at org.apache.jackrabbit.core.persistence.bundle.util.ItemStateBinding.writeQName(ItemStateBinding.java:391)
	at org.apache.jackrabbit.core.persistence.bundle.util.BundleBinding.writeBundle(BundleBinding.java:286)
	at org.apache.jackrabbit.core.persistence.bundle.BundleDbPersistenceManager.storeBundle(BundleDbPersistenceManager.java:1262)
	at org.apache.jackrabbit.core.persistence.bundle.AbstractBundlePersistenceManager.putBundle(AbstractBundlePersistenceManager.java:703)
	at org.apache.jackrabbit.core.persistence.bundle.AbstractBundlePersistenceManager.store(AbstractBundlePersistenceManager.java:643)
	at org.apache.jackrabbit.core.persistence.bundle.BundleDbPersistenceManager.store(BundleDbPersistenceManager.java:526)
	at org.apache.jackrabbit.core.state.SharedItemStateManager$Update.end(SharedItemStateManager.java:704)
	at org.apache.jackrabbit.core.state.SharedItemStateManager.update(SharedItemStateManager.java:873)
	at org.apache.jackrabbit.core.state.LocalItemStateManager.update(LocalItemStateManager.java:324)
	at org.apache.jackrabbit.core.state.XAItemStateManager.update(XAItemStateManager.java:306)
	at org.apache.jackrabbit.core.state.LocalItemStateManager.update(LocalItemStateManager.java:300)
	at org.apache.jackrabbit.core.state.SessionItemStateManager.update(SessionItemStateManager.java:317)
	at org.apache.jackrabbit.core.ItemImpl.save(ItemImpl.java:1247)
	at org.apache.jackrabbit.core.SessionImpl.save(SessionImpl.java:897)
<snip rest of stacktrace/>

It seems like I have to preregister all used namespaces myself with the
NamespaceRegistry. And I possibly have to do some namespace prefix
normalization to avoid collisions if I don't have control over what
namespace prefixes are used because there's only one NamespaceRegistry
per workspace. Did I get that about right?

Thanks for your input,
Jeremias Maerki

Re: Namespaces and Session.getImportContentHandler()

Posted by Jeremias Maerki <de...@jeremias-maerki.ch>.

The problem was indeed on the SAX generator side. For the two top-level
namespace prefixes of my XMP packet, the start/endPrefixMapping()
methods were not called. The Xerces XML serializer seems to be immune to
such oversights which is why I haven't caught the bug in XG Commons
earlier. Thanks again for your input. One bug less in this world. ;-)

On 04.06.2008 16:32:18 Jeremias Maerki wrote:
> Thanks for the feedback, Stefan. In that case, I'll first have to make
> sure the problem is not on my side. ATM, the XML content is generated by
> Java code (XML Graphics Commons' XMP package) as SAX events. I'll see if
> the same happens if I load from an XML file to rule out any SAXish
> side-effects.
> 
> On 04.06.2008 16:18:26 Stefan Guggisberg wrote:
> > On Wed, Jun 4, 2008 at 4:09 PM, Jeremias Maerki <de...@jeremias-maerki.ch> wrote:
> > > I'm trying to import arbitrary XML content through
> > > Session.getImportContentHandler(). It works fine if I have XML content
> > > that is fully in the default namespace. But if there's mixed-namespace content
> > > I get the following error when calling Session.save():
> > >
> > > ERROR - failed to write bundle: 1b773746-508f-4176-ab3f-6bbf3d1b6bd9
> > > java.lang.IllegalStateException: URI not valid? javax.jcr.NamespaceException: URI http://www.w3.org/1999/02/22-rdf-syntax-ns# is not registered.
> > >        at org.apache.jackrabbit.core.persistence.bundle.util.NamespaceIndex.stringToIndex(NamespaceIndex.java:55)
> > >        at org.apache.jackrabbit.core.persistence.bundle.util.ItemStateBinding.writeQName(ItemStateBinding.java:391)
> > >        at org.apache.jackrabbit.core.persistence.bundle.util.BundleBinding.writeBundle(BundleBinding.java:286)
> > >        at org.apache.jackrabbit.core.persistence.bundle.BundleDbPersistenceManager.storeBundle(BundleDbPersistenceManager.java:1262)
> > >        at org.apache.jackrabbit.core.persistence.bundle.AbstractBundlePersistenceManager.putBundle(AbstractBundlePersistenceManager.java:703)
> > >        at org.apache.jackrabbit.core.persistence.bundle.AbstractBundlePersistenceManager.store(AbstractBundlePersistenceManager.java:643)
> > >        at org.apache.jackrabbit.core.persistence.bundle.BundleDbPersistenceManager.store(BundleDbPersistenceManager.java:526)
> > >        at org.apache.jackrabbit.core.state.SharedItemStateManager$Update.end(SharedItemStateManager.java:704)
> > >        at org.apache.jackrabbit.core.state.SharedItemStateManager.update(SharedItemStateManager.java:873)
> > >        at org.apache.jackrabbit.core.state.LocalItemStateManager.update(LocalItemStateManager.java:324)
> > >        at org.apache.jackrabbit.core.state.XAItemStateManager.update(XAItemStateManager.java:306)
> > >        at org.apache.jackrabbit.core.state.LocalItemStateManager.update(LocalItemStateManager.java:300)
> > >        at org.apache.jackrabbit.core.state.SessionItemStateManager.update(SessionItemStateManager.java:317)
> > >        at org.apache.jackrabbit.core.ItemImpl.save(ItemImpl.java:1247)
> > >        at org.apache.jackrabbit.core.SessionImpl.save(SessionImpl.java:897)
> > > <snip rest of stacktrace/>
> > >
> > > It seems like I have to preregister all used namespaces myself with the
> > > NamespaceRegistry. And I possibly have to do some namespace prefix
> > > normalization to avoid collisions if I don't have control over what
> > > namespace prefixes are used because there's only one NamespaceRegistry
> > > per workspace. Did I get that about right?
> > 
> > no, that shouldn't be necessary, all references namespaces in your xml document
> > should automatically be registered. seems to be a bug, could you perhaps
> > provide a sample xml document that fails on import?
> > 
> > cheers
> > stefan
> > 
> > 
> > >
> > > Thanks for your input,
> > > Jeremias Maerki
> > >
> > >
> 
> 
> 
> 
> Jeremias Maerki
> 




Jeremias Maerki

Re: Namespaces and Session.getImportContentHandler()

Posted by Jeremias Maerki <de...@jeremias-maerki.ch>.

Thanks for the feedback, Stefan. In that case, I'll first have to make
sure the problem is not on my side. ATM, the XML content is generated by
Java code (XML Graphics Commons' XMP package) as SAX events. I'll see if
the same happens if I load from an XML file to rule out any SAXish
side-effects.

On 04.06.2008 16:18:26 Stefan Guggisberg wrote:
> On Wed, Jun 4, 2008 at 4:09 PM, Jeremias Maerki <de...@jeremias-maerki.ch> wrote:
> > I'm trying to import arbitrary XML content through
> > Session.getImportContentHandler(). It works fine if I have XML content
> > that is fully in the default namespace. But if there's mixed-namespace content
> > I get the following error when calling Session.save():
> >
> > ERROR - failed to write bundle: 1b773746-508f-4176-ab3f-6bbf3d1b6bd9
> > java.lang.IllegalStateException: URI not valid? javax.jcr.NamespaceException: URI http://www.w3.org/1999/02/22-rdf-syntax-ns# is not registered.
> >        at org.apache.jackrabbit.core.persistence.bundle.util.NamespaceIndex.stringToIndex(NamespaceIndex.java:55)
> >        at org.apache.jackrabbit.core.persistence.bundle.util.ItemStateBinding.writeQName(ItemStateBinding.java:391)
> >        at org.apache.jackrabbit.core.persistence.bundle.util.BundleBinding.writeBundle(BundleBinding.java:286)
> >        at org.apache.jackrabbit.core.persistence.bundle.BundleDbPersistenceManager.storeBundle(BundleDbPersistenceManager.java:1262)
> >        at org.apache.jackrabbit.core.persistence.bundle.AbstractBundlePersistenceManager.putBundle(AbstractBundlePersistenceManager.java:703)
> >        at org.apache.jackrabbit.core.persistence.bundle.AbstractBundlePersistenceManager.store(AbstractBundlePersistenceManager.java:643)
> >        at org.apache.jackrabbit.core.persistence.bundle.BundleDbPersistenceManager.store(BundleDbPersistenceManager.java:526)
> >        at org.apache.jackrabbit.core.state.SharedItemStateManager$Update.end(SharedItemStateManager.java:704)
> >        at org.apache.jackrabbit.core.state.SharedItemStateManager.update(SharedItemStateManager.java:873)
> >        at org.apache.jackrabbit.core.state.LocalItemStateManager.update(LocalItemStateManager.java:324)
> >        at org.apache.jackrabbit.core.state.XAItemStateManager.update(XAItemStateManager.java:306)
> >        at org.apache.jackrabbit.core.state.LocalItemStateManager.update(LocalItemStateManager.java:300)
> >        at org.apache.jackrabbit.core.state.SessionItemStateManager.update(SessionItemStateManager.java:317)
> >        at org.apache.jackrabbit.core.ItemImpl.save(ItemImpl.java:1247)
> >        at org.apache.jackrabbit.core.SessionImpl.save(SessionImpl.java:897)
> > <snip rest of stacktrace/>
> >
> > It seems like I have to preregister all used namespaces myself with the
> > NamespaceRegistry. And I possibly have to do some namespace prefix
> > normalization to avoid collisions if I don't have control over what
> > namespace prefixes are used because there's only one NamespaceRegistry
> > per workspace. Did I get that about right?
> 
> no, that shouldn't be necessary, all references namespaces in your xml document
> should automatically be registered. seems to be a bug, could you perhaps
> provide a sample xml document that fails on import?
> 
> cheers
> stefan
> 
> 
> >
> > Thanks for your input,
> > Jeremias Maerki
> >
> >




Jeremias Maerki

Re: Namespaces and Session.getImportContentHandler()

Posted by Stefan Guggisberg <st...@day.com>.

On Wed, Jun 4, 2008 at 4:09 PM, Jeremias Maerki <de...@jeremias-maerki.ch> wrote:
> I'm trying to import arbitrary XML content through
> Session.getImportContentHandler(). It works fine if I have XML content
> that is fully in the default namespace. But if there's mixed-namespace content
> I get the following error when calling Session.save():
>
> ERROR - failed to write bundle: 1b773746-508f-4176-ab3f-6bbf3d1b6bd9
> java.lang.IllegalStateException: URI not valid? javax.jcr.NamespaceException: URI http://www.w3.org/1999/02/22-rdf-syntax-ns# is not registered.
>        at org.apache.jackrabbit.core.persistence.bundle.util.NamespaceIndex.stringToIndex(NamespaceIndex.java:55)
>        at org.apache.jackrabbit.core.persistence.bundle.util.ItemStateBinding.writeQName(ItemStateBinding.java:391)
>        at org.apache.jackrabbit.core.persistence.bundle.util.BundleBinding.writeBundle(BundleBinding.java:286)
>        at org.apache.jackrabbit.core.persistence.bundle.BundleDbPersistenceManager.storeBundle(BundleDbPersistenceManager.java:1262)
>        at org.apache.jackrabbit.core.persistence.bundle.AbstractBundlePersistenceManager.putBundle(AbstractBundlePersistenceManager.java:703)
>        at org.apache.jackrabbit.core.persistence.bundle.AbstractBundlePersistenceManager.store(AbstractBundlePersistenceManager.java:643)
>        at org.apache.jackrabbit.core.persistence.bundle.BundleDbPersistenceManager.store(BundleDbPersistenceManager.java:526)
>        at org.apache.jackrabbit.core.state.SharedItemStateManager$Update.end(SharedItemStateManager.java:704)
>        at org.apache.jackrabbit.core.state.SharedItemStateManager.update(SharedItemStateManager.java:873)
>        at org.apache.jackrabbit.core.state.LocalItemStateManager.update(LocalItemStateManager.java:324)
>        at org.apache.jackrabbit.core.state.XAItemStateManager.update(XAItemStateManager.java:306)
>        at org.apache.jackrabbit.core.state.LocalItemStateManager.update(LocalItemStateManager.java:300)
>        at org.apache.jackrabbit.core.state.SessionItemStateManager.update(SessionItemStateManager.java:317)
>        at org.apache.jackrabbit.core.ItemImpl.save(ItemImpl.java:1247)
>        at org.apache.jackrabbit.core.SessionImpl.save(SessionImpl.java:897)
> <snip rest of stacktrace/>
>
> It seems like I have to preregister all used namespaces myself with the
> NamespaceRegistry. And I possibly have to do some namespace prefix
> normalization to avoid collisions if I don't have control over what
> namespace prefixes are used because there's only one NamespaceRegistry
> per workspace. Did I get that about right?

no, that shouldn't be necessary, all references namespaces in your xml document
should automatically be registered. seems to be a bug, could you perhaps
provide a sample xml document that fails on import?

cheers
stefan


>
> Thanks for your input,
> Jeremias Maerki
>
>