package org.apache.solr.analysis;
/**
* 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.
*/
import java.io.IOException;
import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.stempel.StempelFilter;
import org.apache.lucene.analysis.stempel.StempelStemmer;
import org.apache.solr.common.ResourceLoader;
import org.apache.solr.common.SolrException;
import org.apache.solr.common.SolrException.ErrorCode;
import org.apache.solr.util.plugin.ResourceLoaderAware;
import org.egothor.stemmer.Trie;
/**
* Factory for {@link StempelFilter} using a Polish stemming table.
*/
public class StempelPolishStemFilterFactory extends BaseTokenFilterFactory implements ResourceLoaderAware {
private Trie stemmer = null;
private static final String STEMTABLE = "org/apache/lucene/analysis/pl/stemmer_20000.tbl";
public TokenStream create(TokenStream input) {
return new StempelFilter(input, new StempelStemmer(stemmer));
}
public void inform(ResourceLoader loader) {
try {
stemmer = StempelStemmer.load(loader.openResource(STEMTABLE));
} catch (IOException e) {
throw new SolrException(ErrorCode.SERVER_ERROR, "Could not load stem table: " + STEMTABLE);
}
}
}