package org.apache.lucene.analysis.miscellaneous;
import java.io.IOException;
import java.io.StringReader;
import org.apache.lucene.analysis.BaseTokenStreamTestCase;
import org.apache.lucene.analysis.core.KeywordTokenizer;
import org.apache.lucene.analysis.en.PorterStemFilter;
import org.apache.lucene.analysis.util.CharArrayMap;
import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.Tokenizer;
/*
* 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.
*/
public class TestStemmerOverrideFilter extends BaseTokenStreamTestCase {
public void testOverride() throws IOException {
// lets make booked stem to books
// the override filter will convert "booked" to "books",
// but also mark it with KeywordAttribute so Porter will not change it.
CharArrayMap<String> dictionary = new CharArrayMap<String>(TEST_VERSION_CURRENT, 1, false);
dictionary.put("booked", "books");
Tokenizer tokenizer = new KeywordTokenizer(new StringReader("booked"));
TokenStream stream = new PorterStemFilter(
new StemmerOverrideFilter(tokenizer, dictionary));
assertTokenStreamContents(stream, new String[] { "books" });
}
}