| /* |
| * 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.cassandra.index.sasi.analyzer; |
| |
| import java.nio.ByteBuffer; |
| import java.text.Normalizer; |
| import java.util.Iterator; |
| import java.util.Map; |
| |
| import org.apache.cassandra.db.marshal.AbstractType; |
| |
| public abstract class AbstractAnalyzer implements Iterator<ByteBuffer> |
| { |
| protected ByteBuffer next = null; |
| |
| public ByteBuffer next() |
| { |
| return next; |
| } |
| |
| public void remove() |
| { |
| throw new UnsupportedOperationException(); |
| } |
| |
| public abstract void init(Map<String, String> options, AbstractType validator); |
| |
| public abstract void reset(ByteBuffer input); |
| |
| /** |
| * @return true if current analyzer provides text tokenization, false otherwise. |
| */ |
| public boolean isTokenizing() |
| { |
| return false; |
| } |
| |
| public static String normalize(String original) |
| { |
| return Normalizer.isNormalized(original, Normalizer.Form.NFC) |
| ? original |
| : Normalizer.normalize(original, Normalizer.Form.NFC); |
| } |
| } |