/*
* Copyright 2016
* Ubiquitous Knowledge Processing (UKP) Lab
* Technische Universität Darmstadt
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package de.tudarmstadt.ukp.dkpro.core.lbj;
import static org.apache.uima.fit.util.JCasUtil.select;
import static org.apache.uima.fit.util.JCasUtil.selectCovered;
import java.io.IOException;
import java.net.URL;
import java.util.List;
import org.apache.uima.UimaContext;
import org.apache.uima.analysis_engine.AnalysisEngineProcessException;
import org.apache.uima.cas.CAS;
import org.apache.uima.fit.component.JCasAnnotator_ImplBase;
import org.apache.uima.fit.descriptor.TypeCapability;
import org.apache.uima.jcas.JCas;
import org.apache.uima.resource.ResourceInitializationException;
import de.tudarmstadt.ukp.dkpro.core.api.resources.ModelProviderBase;
import de.tudarmstadt.ukp.dkpro.core.api.segmentation.type.Sentence;
import de.tudarmstadt.ukp.dkpro.core.api.segmentation.type.Token;
import de.tudarmstadt.ukp.dkpro.core.lbj.internal.ConvertToIllinois;
import de.tudarmstadt.ukp.dkpro.core.lbj.internal.ConvertToUima;
import edu.illinois.cs.cogcomp.annotation.Annotator;
import edu.illinois.cs.cogcomp.annotation.AnnotatorException;
import edu.illinois.cs.cogcomp.core.datastructures.textannotation.TextAnnotation;
/**
* Lemmatizer from the Cognitive Computation Group at University of Illinois at Urbana-Champaign.
*/
@TypeCapability(
inputs = { "de.tudarmstadt.ukp.dkpro.core.api.segmentation.type.Sentence",
"de.tudarmstadt.ukp.dkpro.core.api.segmentation.type.Token",
"de.tudarmstadt.ukp.dkpro.core.api.lexmorph.type.pos.POS" },
outputs = { "de.tudarmstadt.ukp.dkpro.core.api.segmentation.type.Lemma" })
public class IllinoisLemmatizer
extends JCasAnnotator_ImplBase
{
private ModelProviderBase<Annotator> modelProvider;
@Override
public void initialize(UimaContext aContext)
throws ResourceInitializationException
{
super.initialize(aContext);
modelProvider = new ModelProviderBase<Annotator>() {
{
setContextObject(IllinoisLemmatizer.this);
setDefault(LOCATION, NOT_REQUIRED);
}
@Override
protected Annotator produceResource(URL aUrl) throws IOException
{
if (!"en".equals(getAggregatedProperties().getProperty(LANGUAGE))) {
throw new IllegalArgumentException("Only language [en] is supported");
}
Annotator annotator = new edu.illinois.cs.cogcomp.nlp.lemmatizer.IllinoisLemmatizer();
return annotator;
}
};
}
@Override
public void process(JCas aJCas)
throws AnalysisEngineProcessException
{
CAS cas = aJCas.getCas();
modelProvider.configure(cas);
ConvertToIllinois converter = new ConvertToIllinois();
TextAnnotation document = converter.convert(aJCas);
// Run tagger
try {
modelProvider.getResource().getView(document);
}
catch (AnnotatorException e) {
throw new IllegalStateException(e);
}
for (Sentence s : select(aJCas, Sentence.class)) {
// Get tokens from CAS
List<Token> casTokens = selectCovered(aJCas, Token.class, s);
ConvertToUima.convertLemma(aJCas, casTokens, document);
}
}
}