001/** 
002 * Copyright (c) 2010, Regents of the University of Colorado 
003 * All rights reserved.
004 * 
005 * Redistribution and use in source and binary forms, with or without
006 * modification, are permitted provided that the following conditions are met:
007 * 
008 * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 
009 * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 
010 * Neither the name of the University of Colorado at Boulder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. 
011 * 
012 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
013 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
014 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
015 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
016 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
017 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
018 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
019 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
020 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
021 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
022 * POSSIBILITY OF SUCH DAMAGE. 
023 */
024package org.cleartk.timeml.event;
025
026import org.apache.uima.UimaContext;
027import org.apache.uima.analysis_engine.AnalysisEngineDescription;
028import org.apache.uima.resource.ResourceInitializationException;
029import org.cleartk.ml.feature.extractor.CleartkExtractor;
030import org.cleartk.ml.feature.extractor.TypePathExtractor;
031import org.cleartk.ml.feature.extractor.CleartkExtractor.Bag;
032import org.cleartk.ml.feature.extractor.CleartkExtractor.Covered;
033import org.cleartk.ml.feature.extractor.CleartkExtractor.Preceding;
034import org.cleartk.ml.liblinear.LibLinearStringOutcomeDataWriter;
035import org.cleartk.timeml.type.Event;
036import org.cleartk.timeml.util.CleartkInternalModelFactory;
037import org.cleartk.feature.token.TokenTextForSelectedPosExtractor;
038import org.cleartk.token.type.Token;
039import org.apache.uima.fit.factory.AnalysisEngineFactory;
040
041/**
042 * <br>
043 * Copyright (c) 2010, Regents of the University of Colorado <br>
044 * All rights reserved.
045 * 
046 * Annotator for the "aspect" attribute of TimeML EVENTs.
047 * 
048 * @author Steven Bethard
049 */
050public class EventAspectAnnotator extends EventAttributeAnnotator<String> {
051
052  public static final CleartkInternalModelFactory FACTORY = new CleartkInternalModelFactory() {
053    @Override
054    public Class<?> getAnnotatorClass() {
055      return EventAspectAnnotator.class;
056    }
057
058    @Override
059    public Class<?> getDataWriterClass() {
060      return LibLinearStringOutcomeDataWriter.class;
061    }
062
063    @Override
064    public AnalysisEngineDescription getBaseDescription() throws ResourceInitializationException {
065      return AnalysisEngineFactory.createEngineDescription(EventAspectAnnotator.class);
066    }
067  };
068
069  @Override
070  public void initialize(UimaContext context) throws ResourceInitializationException {
071    super.initialize(context);
072    this.eventFeatureExtractors.add(new CleartkExtractor<Event, Token>(Token.class, new TypePathExtractor<Token>(
073        Token.class,
074        "pos"), new Bag(new Covered())));
075
076    this.contextExtractors.add(new CleartkExtractor<Event, Token>(
077        Token.class,
078        new TokenTextForSelectedPosExtractor("VB"),
079        new Bag(new Preceding(3))));
080  }
081
082  @Override
083  protected String getDefaultValue() {
084    return "NONE";
085  }
086
087  @Override
088  protected String getAttribute(Event event) {
089    return event.getAspect();
090  }
091
092  @Override
093  protected void setAttribute(Event event, String value) {
094    event.setAspect(value);
095  }
096}