/**
* 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
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*/
package org.apache.ctakes.assertion.medfacts.cleartk.extractors;
import static org.apache.ctakes.assertion.util.AssertionTreeUtils.extractAboveLeftConceptTree;
import java.util.ArrayList;
import java.util.List;
import org.apache.ctakes.assertion.util.SemanticClasses;
import org.apache.ctakes.core.resource.FileLocator;
import org.apache.ctakes.utils.tree.SimpleTree;
import org.apache.uima.jcas.JCas;
import org.apache.uima.jcas.tcas.Annotation;
import org.cleartk.classifier.Feature;
import org.cleartk.classifier.TreeFeature;
import org.cleartk.classifier.feature.extractor.CleartkExtractorException;
import org.cleartk.classifier.feature.extractor.simple.SimpleFeatureExtractor;
import org.cleartk.util.CleartkInitializationException;
public class AssertionAboveLeftTreeExtractor implements SimpleFeatureExtractor {
protected SemanticClasses sems = null;
public AssertionAboveLeftTreeExtractor() throws CleartkInitializationException{
try{
sems = new SemanticClasses(FileLocator.getAsStream("org/apache/ctakes/assertion/all_cues.txt"));
}catch(Exception e){
throw new CleartkInitializationException(e, "org/apache/ctakes/assertion/semantic_classes", "Could not find semantic classes resource.", new Object[]{});
}
}
@Override
public List<Feature> extract(JCas jcas, Annotation annotation)
throws CleartkExtractorException {
List<Feature> features = new ArrayList<Feature>();
SimpleTree tree = extractAboveLeftConceptTree(jcas, annotation, sems);
features.add(new TreeFeature("TK_AboveLeftTree", tree.toString()));
return features;
}
}