pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.5.0 / lucene / contrib / analyzers / common / src / java / org / apache / lucene / analysis / ru / RussianLowerCaseFilter.java

diff --git a/lucene-java-3.5.0/lucene/contrib/analyzers/common/src/java/org/apache/lucene/analysis/ru/RussianLowerCaseFilter.java b/lucene-java-3.5.0/lucene/contrib/analyzers/common/src/java/org/apache/lucene/analysis/ru/RussianLowerCaseFilter.java
new file mode 100644 (file)
index 0000000..923a9d4
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+++ b/lucene-java-3.5.0/lucene/contrib/analyzers/common/src/java/org/apache/lucene/analysis/ru/RussianLowerCaseFilter.java
@@ -0,0 +1,57 @@
+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 java.io.IOException;
+
+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.CharTermAttribute;
+
+/**
+ * Normalizes token text to lower case.
+ * @deprecated Use {@link LowerCaseFilter} instead, which has the same
+ *  functionality. This filter will be removed in Lucene 4.0
+ */
+@Deprecated
+public final class RussianLowerCaseFilter extends TokenFilter
+{
+    private CharTermAttribute termAtt = addAttribute(CharTermAttribute.class);
+   
+    public RussianLowerCaseFilter(TokenStream in)
+    {
+        super(in);
+    }
+
+    @Override
+    public final boolean incrementToken() throws IOException
+    {
+      if (input.incrementToken()) {
+        char[] chArray = termAtt.buffer();
+        int chLen = termAtt.length();
+        for (int i = 0; i < chLen; i++)
+        {
+          chArray[i] = Character.toLowerCase(chArray[i]);
+        }
+        return true;
+      } else {
+        return false;
+      }
+    }
+}