package org.apache.lucene.analysis;
/**
* 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 java.io.Reader;
/**
* Emits the entire input as a single token.
*/
public class KeywordTokenizer extends Tokenizer {
private static final int DEFAULT_BUFFER_SIZE = 256;
private boolean done;
private final char[] buffer;
public KeywordTokenizer(Reader input) {
this(input, DEFAULT_BUFFER_SIZE);
}
public KeywordTokenizer(Reader input, int bufferSize) {
super(input);
this.buffer = new char[bufferSize];
this.done = false;
}
public Token next() throws IOException {
if (!done) {
done = true;
StringBuffer buffer = new StringBuffer();
int length;
while (true) {
length = input.read(this.buffer);
if (length == -1) break;
buffer.append(this.buffer, 0, length);
}
String text = buffer.toString();
return new Token(text, 0, text.length());
}
return null;
}
}
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