/* LanguageTool, a natural language style checker
* Copyright (C) 2007 Daniel Naber (http://www.danielnaber.de)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
* USA
*/
package org.languagetool.tagging.disambiguation.rules;
import java.io.IOException;
import java.util.List;
import javax.xml.parsers.ParserConfigurationException;
import org.languagetool.AnalyzedSentence;
import org.languagetool.JLanguageTool;
import org.languagetool.Language;
import org.languagetool.tagging.disambiguation.Disambiguator;
import org.languagetool.tools.Tools;
import org.xml.sax.SAXException;
/**
* Rule-based disambiguator.
* Implements an idea by Agnes Souque.
*
* @author Marcin Miłkowski
*/
public abstract class AbstractRuleDisambiguator implements Disambiguator {
protected static final String DISAMBIGUATION_FILE = "disambiguation.xml";
protected List<DisambiguationPatternRule> disambiguationRules;
protected abstract Language getLanguage();
@Override
public AnalyzedSentence disambiguate(final AnalyzedSentence input) throws IOException {
AnalyzedSentence sentence = input;
if (disambiguationRules == null) {
final String disambiguationFile =
JLanguageTool.getDataBroker().getResourceDir() + "/" + getLanguage().getShortName() + "/" + DISAMBIGUATION_FILE;
try {
disambiguationRules = loadPatternRules(disambiguationFile);
} catch (final Exception e) {
throw new RuntimeException("Problems with parsing disambiguation file: "
+ disambiguationFile, e);
}
}
for (final DisambiguationPatternRule patternRule : disambiguationRules) {
sentence = patternRule.replace(sentence);
}
return sentence;
}
/**
* Load disambiguation rules from an XML file. Use {@link org.languagetool.JLanguageTool#addRule} to add
* these rules to the checking process.
*
* @throws ParserConfigurationException
* @throws SAXException
* @throws IOException
* @return a List of {@link DisambiguationPatternRule} objects
*/
protected List<DisambiguationPatternRule> loadPatternRules(final String filename) throws ParserConfigurationException, SAXException, IOException {
final DisambiguationRuleLoader ruleLoader = new DisambiguationRuleLoader();
return ruleLoader.getRules(Tools.getStream(filename));
}
}