/**
* 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.assertion.medfacts.cleartk.extractors;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import org.apache.ctakes.assertion.zoner.types.Zone;
import org.apache.ctakes.typesystem.type.textsem.EntityMention;
import org.apache.ctakes.typesystem.type.textsem.IdentifiedAnnotation;
import org.apache.log4j.Logger;
import org.apache.uima.jcas.JCas;
import org.apache.uima.jcas.tcas.Annotation;
import org.cleartk.classifier.Feature;
import org.cleartk.classifier.feature.extractor.CleartkExtractorException;
import org.cleartk.classifier.feature.extractor.simple.SimpleFeatureExtractor;
import org.uimafit.util.JCasUtil;
public class SurroundingExtractor implements SimpleFeatureExtractor
{
protected static final Logger logger = Logger.getLogger(SurroundingExtractor.class);
// Class<? extends Annotation> ancestorAnnotationClass;
//
// public SurroundingExtractor(Class<? extends Annotation> ancestorAnnotationClass)
// {
// this.ancestorAnnotationClass = ancestorAnnotationClass;
// }
@Override
public List<Feature> extract(JCas jcas, Annotation targetAnnotation)
throws CleartkExtractorException
{
logger.info("SurroundingExtractor.extract() BEGIN");
//JCasUtil.indexCovering(jcas, IdentifiedAnnotation.class, this.ancestorAnnotationClass)
Map<IdentifiedAnnotation, Collection<Zone>> coveringMap =
JCasUtil.indexCovering(jcas, IdentifiedAnnotation.class, Zone.class);
IdentifiedAnnotation targetEntityAnnotation = (IdentifiedAnnotation)targetAnnotation;
Collection<Zone> zoneList = coveringMap.get(targetEntityAnnotation);
if (zoneList == null || zoneList.isEmpty())
{
//return null;
logger.info("SurroundingExtractor.extract() early END (no zones)");
new ArrayList<Feature>();
}
ArrayList<Feature> featureList = new ArrayList<Feature>();
for (Zone zone : zoneList)
{
Feature currentFeature = new Feature("zone", zone.getLabel());
logger.info(String.format("zone: %s", zone.getLabel()));
logger.info(String.format("zone feature: %s", currentFeature.toString()));
featureList.add(currentFeature);
}
logger.debug("SurroundingExtractor.extract() END");
return featureList;
}
}