pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.4.0 / lucene / contrib / analyzers / common / src / java / org / apache / lucene / analysis / ru / RussianStemFilter.java

diff --git a/lucene-java-3.4.0/lucene/contrib/analyzers/common/src/java/org/apache/lucene/analysis/ru/RussianStemFilter.java b/lucene-java-3.4.0/lucene/contrib/analyzers/common/src/java/org/apache/lucene/analysis/ru/RussianStemFilter.java
deleted file mode 100644 (file)
index 2878cda..0000000
--- a/lucene-java-3.4.0/lucene/contrib/analyzers/common/src/java/org/apache/lucene/analysis/ru/RussianStemFilter.java
+++ /dev/null
@@ -1,93 +0,0 @@
-package org.apache.lucene.analysis.ru;
-
-/**
- * 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 org.apache.lucene.analysis.KeywordMarkerFilter;// for javadoc
-import org.apache.lucene.analysis.LowerCaseFilter; // for javadoc
-import org.apache.lucene.analysis.TokenFilter;
-import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.tokenattributes.KeywordAttribute;
-import org.apache.lucene.analysis.tokenattributes.CharTermAttribute;
-import org.apache.lucene.analysis.ru.RussianStemmer;//javadoc @link
-import org.apache.lucene.analysis.snowball.SnowballFilter; // javadoc @link
-
-import java.io.IOException;
-
-/**
- * A {@link TokenFilter} that stems Russian words. 
- * <p>
- * The implementation was inspired by GermanStemFilter.
- * The input should be filtered by {@link LowerCaseFilter} before passing it to RussianStemFilter ,
- * because RussianStemFilter only works with lowercase characters.
- * </p>
- * <p>
- * To prevent terms from being stemmed use an instance of
- * {@link KeywordMarkerFilter} or a custom {@link TokenFilter} that sets
- * the {@link KeywordAttribute} before this {@link TokenStream}.
- * </p>
- * @see KeywordMarkerFilter
- * @deprecated Use {@link SnowballFilter} with 
- * {@link org.tartarus.snowball.ext.RussianStemmer} instead, which has the
- * same functionality. This filter will be removed in Lucene 4.0
- */
-@Deprecated
-public final class RussianStemFilter extends TokenFilter
-{
-    /**
-     * The actual token in the input stream.
-     */
-    private RussianStemmer stemmer = new RussianStemmer();
-
-    private final CharTermAttribute termAtt = addAttribute(CharTermAttribute.class);
-    private final KeywordAttribute keywordAttr = addAttribute(KeywordAttribute.class);
-
-    public RussianStemFilter(TokenStream in)
-    {
-        super(in);
-    }
-    /**
-     * Returns the next token in the stream, or null at EOS
-     */
-    @Override
-    public final boolean incrementToken() throws IOException
-    {
-      if (input.incrementToken()) {
-        if(!keywordAttr.isKeyword()) {
-          final String term = termAtt.toString();
-          final String s = stemmer.stem(term);
-          if (s != null && !s.equals(term))
-            termAtt.setEmpty().append(s);
-        }
-        return true;
-      } else {
-        return false;
-      }
-    }
-
-
-    /**
-     * Set a alternative/custom {@link RussianStemmer} for this filter.
-     */
-    public void setStemmer(RussianStemmer stemmer)
-    {
-        if (stemmer != null)
-        {
-            this.stemmer = stemmer;
-        }
-    }
-}