Hi Luigi
To get the Entityhub injected it is typically enough to add a field
with an @Reference annotation to your EnhancementEngine
@Reference
protected Entityhub entityhub;
Please make sure that your pom.xml file includes the
<plugin>
<groupId>org.apache.felix</groupId>
<artifactId>maven-scr-plugin</artifactId>
</plugin>
maven plugin as this will consume those annotations.
If you want to use a ServiceTracker you can do so. In this case you
need to create and open the ServiceTracker in the "activate" method
and close it in the "deactivate" method. During operation you can
obtain the Entityhub by calling "Entityhub entityhub =
(Entityhub)tracker.getService();"
I hope this answers your question
best
Rupert
On Thu, Jan 10, 2013 at 4:35 PM, Gabriel Vince
<[email protected]> wrote:
> Hello Luigi,
>
> 1. to add custom enhancements to the content you can just add triples
> to the content's metadata graph (accessible in the enhancement
> engine).
>
> 2. if you really want a reference to the EntityHub, indeed you can use
> the OSGi API (through a BundleContent from your Activator).
> http://www.osgi.org/javadoc/r4v43/core/org/osgi/framework/BundleContext.html#getServiceReference%28java.lang.Class%29
>
>
>
> Carpe diem
> Gabriel
>
> On Thu, Jan 10, 2013 at 4:18 PM, Luigi Selmi <[email protected]> wrote:
>> Hi Rafa,
>> thanks for your quick response. I know that enhancements are automatically
>> stored into a triple collections for the documents metadata. Maybe my
>> example was not clear. What I need to know is how to get a reference to the
>> Entityhub using the Java API (not the REST API).
>>
>> Best
>>
>> Luigi
>>
>>
>>
>> 2013/1/10 Rafa Haro <[email protected]>
>>
>>> Hi Luigi,
>>>
>>> El 10/01/13 16:00, Luigi Selmi escribió:
>>>
>>> Hello all,
>>>> as in the subject of the email I need to store the enhancements that are
>>>> extracted from some text passed to my enhancer in a ContentItem. I am
>>>> quite
>>>> new to Stanbol and OSGi programming and thought I should get a reference
>>>> to
>>>> the Entityhub service through its interface
>>>>
>>> I think that the enhancement graph is automatically store in the
>>> ContentHub associated with the ContentItem. You can the retrieve it using
>>> ContentHub REST API. Take a look to the API documentation:
>>>
>>> http://dev.iks-project.eu:**8081/contenthub/contenthub/**store/#<http://dev.iks-project.eu:8081/contenthub/contenthub/store/#>
>>>
>>>
>>> Regards
>>>
>>> (org.apache.stanbol.entityhub.**serviceapi.Entityhub ? ) and then call
>>>> the
>>>> store(..) method to store an enhancement into the Entityhub. Following the
>>>> Felix documentation I should use a ServiceReference or a ServiceTracker to
>>>> get the reference of the Entityhub but an enhancer in Stanbol must
>>>> implement an EnhancementEngine interface that is different from a
>>>> BundleActivator so I am not sure how to get the Entityhub's reference. Any
>>>> help, best with some example code, will be greatly appreciated.
>>>>
>>>> Regards
>>>>
>>>> Luigi
>>>>
>>>>
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>>>
>
>
>
> --
> Gabriel Vince
> Senior Consultant
> Apogado
> http://www.apogado.com
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