/*
* 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 com.github.le11.nls.solr;
import com.github.le11.nls.lucene.TypeAwareStopFilter;
import org.apache.lucene.analysis.CharArraySet;
import org.apache.lucene.analysis.StopAnalyzer;
import org.apache.lucene.analysis.TokenStream;
import org.apache.solr.analysis.BaseTokenFilterFactory;
import org.apache.solr.common.ResourceLoader;
import org.apache.solr.util.plugin.ResourceLoaderAware;
import java.io.IOException;
import java.util.Set;
/**
* @author tommaso
*/
public class TypeAwareStopFilterFactory extends BaseTokenFilterFactory implements ResourceLoaderAware {
public void inform(ResourceLoader loader) {
String stopWordFiles = args.get("words");
ignoreCase = getBoolean("ignoreCase", false);
enablePositionIncrements = getBoolean("enablePositionIncrements", false);
if (stopWordFiles != null) {
try {
stopWords = getWordSet(loader, stopWordFiles, ignoreCase);
} catch (IOException e) {
throw new RuntimeException(e);
}
} else {
stopWords = new CharArraySet(luceneMatchVersion, StopAnalyzer.ENGLISH_STOP_WORDS_SET, ignoreCase);
}
}
private CharArraySet stopWords;
private boolean ignoreCase;
private boolean enablePositionIncrements;
public boolean isEnablePositionIncrements() {
return enablePositionIncrements;
}
public boolean isIgnoreCase() {
return ignoreCase;
}
public Set<?> getStopWords() {
return stopWords;
}
@Override
public TokenStream create(TokenStream input) {
TypeAwareStopFilter stopFilter = new TypeAwareStopFilter(luceneMatchVersion, input, stopWords, ignoreCase);
stopFilter.setEnablePositionIncrements(enablePositionIncrements);
return stopFilter;
}
}