Hello Richard! I would like to have a writer that writes all mentions of a given type. The type is given by name as a AE parameter. The way the mentions are formatted should be interchangeable. So the formatter varies and should be encapsulated as a AE resource (or maybe not?).
public class AnnotationWriter extends CasConsumer_ImplBase {
public static final String PARA_TYPE_NAME = "typeName";
/**
* The name of the type whose mentions are to be written.
*/
@ConfigurationParameter(name = PARA_TYPE_NAME, mandatory = true)
private String mTypeName;
/**
* The type whose mentions are to be written.
*/
private Type mType;
public static final String RES_ANNOTATION_FORMATTER =
"annotationFormatter";
@ExternalResource(key = RES_ANNOTATION_FORMATTER, mandatory = true)
private AnnotationFormatter mFormatter;
@Override
public void typeSystemInit(final TypeSystem typeSystem) throws
AnalysisEngineProcessException {
super.typeSystemInit(typeSystem);
mType = typeSystem.getType(typeName);
}
@Override
public final void process(final CAS cas) throws
AnalysisEngineProcessException {
/*
* Write all annotations of the given type.
*/
try (final Writer writer = // build a writer) {
for (final AnnotationFS annotation :
CasUtil.select(cas, type)) {
writer.append(mAnnotationFormatter.format(annotation));
}
} catch (IOException cause) {
throw new AnalysisEngineProcessException(cause);
}
}
}
This is the interface for all formatters.
public interface AnnotationFormatter {
String format(final AnnotationFS annotation);
}
This is a concrete implementation of a formatter. The problem is that this is
not an external resource. There is no file, no dictionary, no data base
connection, or what ever. It is just a simple object. Most likely, this is not
how a UIMA resource should be used.
public class TsvAnnotationFormatter extends Resource_ImplBase implements
AnnotationFormatter {
public static final String PARA_FEATURE_NAMES = "featureNames";
/**
* This would be nice but does not work.
*/
@ConfigurationParameter(name = PARA_FEATURE_NAMES, mandatory = true)
private String[] mFeatureNames;
@Override
public final String format(final AnnotationFS annotation) {
// Pretty print the given features' values.
}
}
As you said, String[] works fine with SharedResourceObject. But
SharedResourceObject demands a real resource to be loaded which I don't have.
There is a simple solution to this: Omit the pseudo resource and make
featureNames a parameter of AnnotationWriter. I can still use the formatter
interface but only internally to the writer. But I have to code a new writer
for each annotation formatter. That works fine but is not the kind of
modularization I would like to have.
Cheers,
Armin
-----Ursprüngliche Nachricht-----
Von: Richard Eckart de Castilho [mailto:r...@apache.org]
Gesendet: Dienstag, 3. Juni 2014 16:05
An: user@uima.apache.org
Betreff: Re: uimafit - String[] parameter in Resource_ImplBase
Hi Armin,
is it a problem of injection (uimaFIT) or a problem of running as a managed
component in a container context (UIMA)? I would assume the later. For further
reference, it might be useful if you could provide an illustrative example.
Cheers,
-- Richard
On 03.06.2014, at 16:00, <armin.weg...@bka.bund.de> <armin.weg...@bka.bund.de>
wrote:
> Hi,
>
> I cancelled it. Actually, I don't have a resource. I just tried to modularize
> my code a little bit. But uimafit's use of injection makes this difficult and
> no fun at all.
>
> Some people consider using injection to be a good programming style. I
> personally hate it. It kills my highly modularized and reusable OO design.
>
> Cheers,
> Armin
>
> -----Ursprüngliche Nachricht-----
> Von: armin.weg...@bka.bund.de [mailto:armin.weg...@bka.bund.de]
> Gesendet: Montag, 19. Mai 2014 11:14
> An: user@uima.apache.org
> Betreff: AW: uimafit - String[] parameter in Resource_ImplBase
> [Signatur gültig]
>
> Hi Richard,
>
> I will try that and report back.
>
> Thanks
> Armin
>
> -----Ursprüngliche Nachricht-----
> Von: Richard Eckart de Castilho [mailto:r...@apache.org]
> Gesendet: Montag, 19. Mai 2014 11:11
> An: user@uima.apache.org
> Betreff: Re: uimafit - String[] parameter in Resource_ImplBase
>
> Hi Armin,
>
> UIMA only supports simple String parameters on Resource_ImplBase. You can
> alternatively implement SharedResourceObject and then you can also use
> String[] and other types of parameters. There is some documentation on this
> in the uimaFIT manual [1].
>
> -- Richard
>
> [1]
> http://uima.apache.org/d/uimafit-current/tools.uimafit.book.html#d5e48
> 2
>
> On 19.05.2014, at 11:03, <armin.weg...@bka.bund.de>
> <armin.weg...@bka.bund.de> wrote:
>
>> Hi!
>>
>> I can't use a configuration parameter of type String[] in a class extending
>> Resource_ImplBase. A cast exception is thrown. A simple String works fine.
>> Arrays doesn't. Is it even possible to use an array of String as parameter
>> with Resource_ImplBase?
>>
>> Cheers
>> Armin
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