/*
* Copyright 2015
* 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.jtok;
import java.io.IOException;
import java.io.InputStream;
import java.nio.file.Paths;
import java.util.List;
import java.util.Properties;
import org.apache.uima.UimaContext;
import org.apache.uima.analysis_engine.AnalysisEngineProcessException;
import org.apache.uima.fit.descriptor.ConfigurationParameter;
import org.apache.uima.fit.descriptor.LanguageCapability;
import org.apache.uima.fit.descriptor.TypeCapability;
import org.apache.uima.jcas.JCas;
import org.apache.uima.jcas.tcas.Annotation;
import org.apache.uima.resource.ResourceInitializationException;
import de.dfki.lt.tools.tokenizer.FileTools;
import de.dfki.lt.tools.tokenizer.JTok;
import de.dfki.lt.tools.tokenizer.annotate.AnnotatedString;
import de.dfki.lt.tools.tokenizer.output.Outputter;
import de.dfki.lt.tools.tokenizer.output.Paragraph;
import de.dfki.lt.tools.tokenizer.output.TextUnit;
import de.dfki.lt.tools.tokenizer.output.Token;
import de.tudarmstadt.ukp.dkpro.core.api.parameter.ComponentParameters;
import de.tudarmstadt.ukp.dkpro.core.api.segmentation.SegmenterBase;
/**
* JTok segmenter.
*/
@LanguageCapability({"en", "de", "it"})
@TypeCapability(outputs = {
"de.tudarmstadt.ukp.dkpro.core.api.segmentation.type.Paragraph",
"de.tudarmstadt.ukp.dkpro.core.api.segmentation.type.Sentence",
"de.tudarmstadt.ukp.dkpro.core.api.segmentation.type.Token" })
public class JTokSegmenter
extends SegmenterBase
{
/**
* Create {@link Paragraph} annotations.
*/
public static final String PARAM_WRITE_PARAGRAPH = ComponentParameters.PARAM_WRITE_PARAGRAPH;
@ConfigurationParameter(name=PARAM_WRITE_PARAGRAPH, mandatory=true, defaultValue="true")
private boolean writeParagraph;
private JTok tokenizer;
@Override
public void initialize(UimaContext aContext)
throws ResourceInitializationException
{
super.initialize(aContext);
Properties tokProps = new Properties();
try (InputStream in = FileTools.openResourceFileAsStream(Paths.get("jtok/jtok.cfg"))) {
tokProps.load(in);
}
catch (IOException e) {
throw new ResourceInitializationException(e);
}
// create new instance of JTok
tokenizer = new JTok(tokProps);
}
@Override
protected void process(JCas aJCas, String text, int zoneBegin)
throws AnalysisEngineProcessException
{
AnnotatedString s = tokenizer.tokenize(aJCas.getDocumentText(), getLanguage(aJCas));
List<Paragraph> paragraphs = Outputter.createParagraphs(s);
for (Paragraph paragraph : paragraphs) {
if (writeParagraph) {
Annotation p = new de.tudarmstadt.ukp.dkpro.core.api.segmentation.type.Paragraph(
aJCas, paragraph.getStartIndex(), paragraph.getEndIndex());
p.addToIndexes();
}
for (TextUnit tu : paragraph.getTextUnits()) {
if (isWriteSentence()) {
createSentence(aJCas, tu.getStartIndex(), tu.getEndIndex());
}
for (Token t : tu.getTokens()) {
if (isWriteToken()) {
createToken(aJCas, t.getStartIndex(), t.getEndIndex());
}
}
}
}
}
}