LUCENE-4197 spatial: removed unused PrefixCellsTokenizer

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1383457 13f79535-47bb-0310-9956-ffa450edef68

lucene/spatial/src/java/org/apache/lucene/spatial/prefix/PrefixCellsTokenizer.java

@@ -1,79 +0,0 @@
-/*
- * 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.
- */
-
-package org.apache.lucene.spatial.prefix;
-
-import org.apache.lucene.analysis.Tokenizer;
-import org.apache.lucene.analysis.tokenattributes.CharTermAttribute;
-
-import java.io.IOException;
-import java.io.Reader;
-
-
-/**
- * @lucene.internal
- */
-class PrefixCellsTokenizer extends Tokenizer {
-  public PrefixCellsTokenizer(Reader input) {
-    super(input);
-  }
-
-  private final CharTermAttribute termAtt = addAttribute(CharTermAttribute.class);
-
-  @Override
-  public final boolean incrementToken() throws IOException {
-    clearAttributes();
-    int length = 0;
-    char[] buffer = termAtt.buffer();
-    while (true) {
-      char c = (char) input.read();
-      if (c < 0) break;
-      if (c == 'a' || c == 'A') {
-        buffer[length++] = 'A';
-        continue;
-      }
-      if (c == 'b' || c == 'B') {
-        buffer[length++] = 'B';
-        continue;
-      }
-      if (c == 'c' || c == 'C') {
-        buffer[length++] = 'C';
-        continue;
-      }
-      if (c == 'd' || c == 'D') {
-        buffer[length++] = 'D';
-        continue;
-      }
-      if (c == '*') {
-        buffer[length++] = '*';
-        continue;
-      }
-      if (c == '+') {
-        buffer[length++] = '+';
-        continue;
-      }
-
-      if (length > 0) {
-        // Skip any other character
-        break;
-      }
-    }
-
-    termAtt.setLength(length);
-    return length > 0; // should only happen at the end
-  }
-}