01: /**
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * http://www.apache.org/licenses/LICENSE-2.0
10: *
11: * Unless required by applicable law or agreed to in writing, software
12: * distributed under the License is distributed on an "AS IS" BASIS,
13: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14: * See the License for the specific language governing permissions and
15: * limitations under the License.
16: */package org.apache.solr.analysis;
17:
18: import java.util.Map;
19:
20: import org.apache.lucene.analysis.TokenStream;
21: import org.apache.lucene.analysis.snowball.SnowballFilter;
22: import org.apache.solr.core.SolrCore;
23:
24: /**
25: * Factory for SnowballFilters, with configurable language
26: *
27: * Browsing the code, SnowballFilter uses reflection to adapt to Lucene... don't
28: * use this if you are concerned about speed. Use EnglishPorterFilterFactory.
29: *
30: * @author yonik
31: * @version $Id: SnowballPorterFilterFactory.java 472574 2006-11-08 18:25:52Z yonik $
32: */
33:
34: public class SnowballPorterFilterFactory extends BaseTokenFilterFactory {
35: private String language = "English";
36:
37: public void init(Map<String, String> args) {
38: super .init(args);
39: final String cfgLanguage = args.get("language");
40: if (cfgLanguage != null)
41: language = cfgLanguage;
42: SolrCore.log.fine("SnowballPorterFilterFactory: language="
43: + language);
44: }
45:
46: public TokenStream create(TokenStream input) {
47: return new SnowballFilter(input, language);
48: }
49: }
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