org.elasticsearch.index.analysis.compound.AbstractCompoundWordTokenFilterFactory Maven / Gradle / Ivy
/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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 org.elasticsearch.index.analysis.compound;
import org.apache.lucene.analysis.compound.CompoundWordTokenFilterBase;
import org.apache.lucene.analysis.util.CharArraySet;
import org.elasticsearch.ElasticsearchIllegalArgumentException;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.inject.assistedinject.Assisted;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.env.Environment;
import org.elasticsearch.index.Index;
import org.elasticsearch.index.analysis.AbstractTokenFilterFactory;
import org.elasticsearch.index.analysis.Analysis;
import org.elasticsearch.index.settings.IndexSettings;
/**
* Contains the common configuration settings between subclasses of this class.
*/
public abstract class AbstractCompoundWordTokenFilterFactory extends AbstractTokenFilterFactory {
protected final int minWordSize;
protected final int minSubwordSize;
protected final int maxSubwordSize;
protected final boolean onlyLongestMatch;
protected final CharArraySet wordList;
@Inject
public AbstractCompoundWordTokenFilterFactory(Index index, @IndexSettings Settings indexSettings, Environment env, @Assisted String name, @Assisted Settings settings) {
super(index, indexSettings, name, settings);
minWordSize = settings.getAsInt("min_word_size", CompoundWordTokenFilterBase.DEFAULT_MIN_WORD_SIZE);
minSubwordSize = settings.getAsInt("min_subword_size", CompoundWordTokenFilterBase.DEFAULT_MIN_SUBWORD_SIZE);
maxSubwordSize = settings.getAsInt("max_subword_size", CompoundWordTokenFilterBase.DEFAULT_MAX_SUBWORD_SIZE);
onlyLongestMatch = settings.getAsBoolean("only_longest_match", false);
wordList = Analysis.getWordSet(env, settings, "word_list", version);
if (wordList == null) {
throw new ElasticsearchIllegalArgumentException("word_list must be provided for [" + name + "], either as a path to a file, or directly");
}
}
}