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/*
* Licensed to Elastic Search and Shay Banon under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. Elastic Search 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.elasticsearch.index.analysis;
import org.apache.lucene.analysis.NumericTokenStream;
import org.apache.lucene.analysis.Tokenizer;
import java.io.IOException;
import java.io.Reader;
/**
* @author kimchy (shay.banon)
*/
public abstract class NumericTokenizer extends Tokenizer {
private final NumericTokenStream numericTokenStream;
protected final Object extra;
protected NumericTokenizer(Reader reader, NumericTokenStream numericTokenStream, Object extra) throws IOException {
super(numericTokenStream);
this.numericTokenStream = numericTokenStream;
this.extra = extra;
reset(reader);
}
protected NumericTokenizer(Reader reader, NumericTokenStream numericTokenStream, char[] buffer, Object extra) throws IOException {
super(numericTokenStream);
this.numericTokenStream = numericTokenStream;
this.extra = extra;
reset(reader, buffer);
}
@Override public void reset(Reader input) throws IOException {
char[] buffer = new char[32];
reset(input, buffer);
}
public void reset(Reader input, char[] buffer) throws IOException {
super.reset(input);
int len = input.read(buffer);
String value = new String(buffer, 0, len);
setValue(numericTokenStream, value);
numericTokenStream.reset();
}
@Override public boolean incrementToken() throws IOException {
return numericTokenStream.incrementToken();
}
protected abstract void setValue(NumericTokenStream tokenStream, String value);
}