You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@stanbol.apache.org by Gabriel Vince <ga...@apogado.com> on 2013/01/04 11:28:30 UTC
custom enhancement engine - getMetadata - java.lang.NoSuchMethodError
Hello all,
I could use a little help from somebody :)
Building a custom EnhancementEngine to append into an existing chain
we got a strange error:
what we want to achieve is to add additional metadata (enhancements)
to a content item. As far I understood we can do it additng triples
into item's metadata graph.
- running in the provided sling felix launcher
- Revision 1428346
public void computeEnhancements(ContentItem ci)
{
LockableMGraph metadata = ci.getMetadata();
// etc
}
throws an error
java.lang.NoSuchMethodError: org.apache.stanbol.enhancer.servicesapi.ContentItem
.getMetadata()Lorg/apache/clerezza/rdf/core/access/LockableMGraph;
at com.apogado.tfse.enhancer.steenhancer.SteEnhancer.computeEnhancements
(SteEnhancer.java:67)
at org.apache.stanbol.enhancer.jobmanager.event.impl.EnhancementJobHandl
er.processEvent(EnhancementJobHandler.java:256)
at org.apache.stanbol.enhancer.jobmanager.event.impl.EnhancementJobHandl
er.handleEvent(EnhancementJobHandler.java:189)
dependences:
org.apache.stanbol/org.apache.stanbol.enhancer.servicesapi/0.9.0-incubating
where the ContentItem class contains a method getMetadata() returning
a LockableMGraph..
Any help is appreciated. Thank you in advance
Gabriel
--
Gabriel Vince
Senior Consultant
Apogado
http://www.apogado.com
Re: custom enhancement engine - getMetadata - java.lang.NoSuchMethodError
Posted by Rupert Westenthaler <ru...@gmail.com>.
Hi Gabriel,
The reason for that is an API change of the ContentItem API related to
STANBOL-773 [1]. With revision 1311205 [2] the type of the return
value of the ContentItem#getMetadata changed from "LockableMGrpah" to
"MGrpah". For details on the motivation for this change please see the
comment on STANBOL-733.
best
Rupert
[1] https://issues.apache.org/jira/browse/STANBOL
[2] http://svn.apache.org/viewvc?rev=1311205&view=rev (had to search
for the exact revision as the actual change was accidentally included
in a commit that was intended to change only release related metadata)
On Fri, Jan 4, 2013 at 11:32 AM, Gabriel Vince
<ga...@apogado.com> wrote:
> Hello all,
>
> resolved (strange, but works) - updating stanbol serviceapi dependency
> to the version 0.10.0-SNAPSHOT helped.
>
> Gabriel
>
> On Fri, Jan 4, 2013 at 11:28 AM, Gabriel Vince
> <ga...@apogado.com> wrote:
>> Hello all,
>>
>> I could use a little help from somebody :)
>>
>> Building a custom EnhancementEngine to append into an existing chain
>> we got a strange error:
>>
>> what we want to achieve is to add additional metadata (enhancements)
>> to a content item. As far I understood we can do it additng triples
>> into item's metadata graph.
>>
>> - running in the provided sling felix launcher
>> - Revision 1428346
>>
>> public void computeEnhancements(ContentItem ci)
>> {
>> LockableMGraph metadata = ci.getMetadata();
>> // etc
>> }
>>
>> throws an error
>>
>> java.lang.NoSuchMethodError: org.apache.stanbol.enhancer.servicesapi.ContentItem
>> .getMetadata()Lorg/apache/clerezza/rdf/core/access/LockableMGraph;
>> at com.apogado.tfse.enhancer.steenhancer.SteEnhancer.computeEnhancements
>> (SteEnhancer.java:67)
>> at org.apache.stanbol.enhancer.jobmanager.event.impl.EnhancementJobHandl
>> er.processEvent(EnhancementJobHandler.java:256)
>> at org.apache.stanbol.enhancer.jobmanager.event.impl.EnhancementJobHandl
>> er.handleEvent(EnhancementJobHandler.java:189)
>>
>> dependences:
>> org.apache.stanbol/org.apache.stanbol.enhancer.servicesapi/0.9.0-incubating
>>
>> where the ContentItem class contains a method getMetadata() returning
>> a LockableMGraph..
>>
>> Any help is appreciated. Thank you in advance
>>
>> Gabriel
>>
>>
>> --
>> Gabriel Vince
>> Senior Consultant
>> Apogado
>> http://www.apogado.com
>
>
>
> --
> Gabriel Vince
> Senior Consultant
> Apogado
> http://www.apogado.com
--
| Rupert Westenthaler rupert.westenthaler@gmail.com
| Bodenlehenstraße 11 ++43-699-11108907
| A-5500 Bischofshofen
Re: custom enhancement engine - getMetadata - java.lang.NoSuchMethodError
Posted by Gabriel Vince <ga...@apogado.com>.
Hello all,
resolved (strange, but works) - updating stanbol serviceapi dependency
to the version 0.10.0-SNAPSHOT helped.
Gabriel
On Fri, Jan 4, 2013 at 11:28 AM, Gabriel Vince
<ga...@apogado.com> wrote:
> Hello all,
>
> I could use a little help from somebody :)
>
> Building a custom EnhancementEngine to append into an existing chain
> we got a strange error:
>
> what we want to achieve is to add additional metadata (enhancements)
> to a content item. As far I understood we can do it additng triples
> into item's metadata graph.
>
> - running in the provided sling felix launcher
> - Revision 1428346
>
> public void computeEnhancements(ContentItem ci)
> {
> LockableMGraph metadata = ci.getMetadata();
> // etc
> }
>
> throws an error
>
> java.lang.NoSuchMethodError: org.apache.stanbol.enhancer.servicesapi.ContentItem
> .getMetadata()Lorg/apache/clerezza/rdf/core/access/LockableMGraph;
> at com.apogado.tfse.enhancer.steenhancer.SteEnhancer.computeEnhancements
> (SteEnhancer.java:67)
> at org.apache.stanbol.enhancer.jobmanager.event.impl.EnhancementJobHandl
> er.processEvent(EnhancementJobHandler.java:256)
> at org.apache.stanbol.enhancer.jobmanager.event.impl.EnhancementJobHandl
> er.handleEvent(EnhancementJobHandler.java:189)
>
> dependences:
> org.apache.stanbol/org.apache.stanbol.enhancer.servicesapi/0.9.0-incubating
>
> where the ContentItem class contains a method getMetadata() returning
> a LockableMGraph..
>
> Any help is appreciated. Thank you in advance
>
> Gabriel
>
>
> --
> Gabriel Vince
> Senior Consultant
> Apogado
> http://www.apogado.com
--
Gabriel Vince
Senior Consultant
Apogado
http://www.apogado.com