Good question ;) I think that should work. I did a quick test modifying one
of the uimaFIT CPE test cases:
@Test
public void testMultiBinding() throws Exception {
ExternalResourceDescription extDesc =
createExternalResourceDescription(ResourceWithAssert.class);
// Binding external resource to each Annotator individually
AnalysisEngineDescription aed1 = createEngineDescription(MultiBindAE.class,
MultiBindAE.RES_KEY, extDesc);
AnalysisEngineDescription aed2 = createEngineDescription(MultiBindAE.class,
MultiBindAE.RES_KEY, extDesc);
// Check the external resource was injected
MultiBindAE.reset();
// AnalysisEngineDescription aaed = createEngineDescription(aed1, aed2);
CpePipeline.runPipeline(CollectionReaderFactory.createReaderDescription(Reader.class),
aed1, aed2);
}
Output:
MultiBindAE:
org.apache.uima.fit.cpe.ExternalResourceFactoryTest$ResourceWithAssert@6edb35f8
MultiBindAE:
org.apache.uima.fit.cpe.ExternalResourceFactoryTest$ResourceWithAssert@6edb35f8
Looks good I'd say ;)
I believe what happens internally is that the external resource descriptions
from all the delegates are merged into one configuration for the resource
manager.
Cheers,
-- Richard
P.S: as a comparison - using two separate external resources (not sharing)
@Test
public void testMultiBinding() throws Exception {
ExternalResourceDescription extDesc1 =
createExternalResourceDescription(ResourceWithAssert.class);
ExternalResourceDescription extDesc2 =
createExternalResourceDescription(ResourceWithAssert.class);
// Binding external resource to each Annotator individually
AnalysisEngineDescription aed1 = createEngineDescription(MultiBindAE.class,
MultiBindAE.RES_KEY, extDesc1);
AnalysisEngineDescription aed2 = createEngineDescription(MultiBindAE.class,
MultiBindAE.RES_KEY, extDesc2);
// Check the external resource was injected
MultiBindAE.reset();
// AnalysisEngineDescription aaed = createEngineDescription(aed1, aed2);
CpePipeline.runPipeline(CollectionReaderFactory.createReaderDescription(Reader.class),
aed1, aed2);
}
Output:
MultiBindAE:
org.apache.uima.fit.cpe.ExternalResourceFactoryTest$ResourceWithAssert@28a34522
MultiBindAE:
org.apache.uima.fit.cpe.ExternalResourceFactoryTest$ResourceWithAssert@113a89af
On 17.09.2014, at 13:54, James Baker <[email protected]> wrote:
> My annotators aren't encompassed within an aggregate AE, but are chained
> together in a CPE descriptor. Is it possible to define the external
> resource in the CPE descriptor for the annotators to access, rather than
> having bundle them into an aggregate in order to share the resource?
>
> On 17 September 2014 12:16, Richard Eckart de Castilho <[email protected]>
> wrote:
>
>> When you have created a description in uimaFIT, call toXML on it to get the
>> configuration file. Mind that the uimaFIT-generated description may contain
>> many redundancies, in particular the types might be re-defined multiple
>> times.
>> uimaFIT doesn't take care of minimizing the description since that is not
>> important for its operation.
>>
>> Cheers,
>>
>> -- Richard
>>
>> On 17.09.2014, at 13:00, Johannes Darms <[email protected]>
>> wrote:
>>
>>> Hey James,
>>>
>>>> How do I ensure the resource is shared across multiple
>>>> annotators? Do I give it the same key, name and/or URI? Does it need to
>> be
>>>> declared separately and then referenced somehow?
>>> I'm not sure how to do it with configuration Files. I create and inject
>> them using UIMAfit [1].
>>>
>>>
>>> Regards,
>>>
>>> Johannes
>>>
>>> [1]
>> https://uima.apache.org/d/uimafit-current/tools.uimafit.book.html#d5e387
>>> ----- Original Message -----
>>> From: "James Baker" <[email protected]>
>>> To: [email protected]
>>> Sent: Wednesday, September 17, 2014 12:20:54 PM
>>> Subject: Re: Share database connections between annotators
>>>
>>> Thanks Johannes,
>>>
>>> I've not used External Resources before and the documentation seems to be
>>> fairly limited. How do I ensure the resource is shared across multiple
>>> annotators? Do I give it the same key, name and/or URI? Does it need to
>> be
>>> declared separately and then referenced somehow?
>>>
>>> James
>>>
>>> On 17 September 2014 10:57, Johannes Darms <
>>> [email protected]> wrote:
>>>
>>>> Hey James,
>>>>
>>>> I don't know if its the best way. I would implement a collection Pool as
>>>> an External Resources and pass these Resource to the different
>> Annotators
>>>> in your AE.
>>>>
>>>> Regards,
>>>>
>>>> Johannes
>>>>
>>>> [1]
>>>>
>> https://uima.apache.org/d/uimafit-current/tools.uimafit.book.html#ugr.tools.uimafit.externalresources
>>>>
>>>> ----- Original Message -----
>>>> From: "James Baker" <[email protected]>
>>>> To: [email protected]
>>>> Sent: Wednesday, September 17, 2014 11:33:58 AM
>>>> Subject: Share database connections between annotators
>>>>
>>>> What is the best way of sharing a database connection (in my case, to
>>>> MongoDB) between annotators?
>>>>
>>>> Currently, I instantiate a new database connection for each annotator,
>> but
>>>> as my UIMA pipeline now has over 50 annotators (not all of which
>> connect to
>>>> the database), I am ending up with a large number of database
>> connections.
>>>> Ideally, I'd like to move to a single connection pool that can be
>> shared by
>>>> the annotators. The Mongo driver supports connection pooling, but I'm
>>>> unsure how best to implement in UIMA.
>>>>
>>>> Any advice would be appreciated.
>>>>
>>>> Thanks,
>>>> James
>>>>
>>
>>
