/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.ctakes.relationextractor.ae;
import java.util.ArrayList;
import java.util.List;
import org.apache.ctakes.typesystem.type.relation.BinaryTextRelation;
import org.apache.ctakes.typesystem.type.relation.DegreeOfTextRelation;
import org.apache.ctakes.typesystem.type.relation.RelationArgument;
import org.apache.ctakes.typesystem.type.textsem.EventMention;
import org.apache.ctakes.typesystem.type.textsem.IdentifiedAnnotation;
import org.apache.ctakes.typesystem.type.textsem.Modifier;
import org.apache.ctakes.typesystem.type.textspan.Sentence;
import org.apache.uima.jcas.JCas;
import org.apache.uima.jcas.tcas.Annotation;
import org.uimafit.util.JCasUtil;
/**
* Identifies Degree_Of relations between {@link EventMention}s and
* {@link Modifier}s.
*/
public class DegreeOfRelationExtractorAnnotator extends RelationExtractorAnnotator {
@Override
protected Class<? extends BinaryTextRelation> getRelationClass() {
return DegreeOfTextRelation.class;
}
@Override
public List<IdentifiedAnnotationPair> getCandidateRelationArgumentPairs(
JCas identifiedAnnotationView,
Annotation sentence) {
List<EventMention> events =
JCasUtil.selectCovered(identifiedAnnotationView, EventMention.class, sentence);
List<Modifier> modifiers =
JCasUtil.selectCovered(identifiedAnnotationView, Modifier.class, sentence);
List<IdentifiedAnnotationPair> pairs = new ArrayList<IdentifiedAnnotationPair>();
for (EventMention event : events) {
for (Modifier modifier : modifiers) {
pairs.add(new IdentifiedAnnotationPair(event, modifier));
}
}
return pairs;
}
@Override
protected void createRelation(
JCas jCas,
IdentifiedAnnotation arg1,
IdentifiedAnnotation arg2,
String predictedCategory) {
RelationArgument relArg1 = new RelationArgument(jCas);
relArg1.setArgument(arg1);
relArg1.setRole("Argument");
relArg1.addToIndexes();
RelationArgument relArg2 = new RelationArgument(jCas);
relArg2.setArgument(arg2);
relArg2.setRole("Related_to");
relArg2.addToIndexes();
DegreeOfTextRelation relation = new DegreeOfTextRelation(jCas);
relation.setArg1(relArg1);
relation.setArg2(relArg2);
relation.setCategory(predictedCategory);
relation.addToIndexes();
}
@Override
protected Class<? extends Annotation> getCoveringClass() {
return Sentence.class;
}
}