/*
* Copyright 2004-2005 The Apache Software Foundation
*
* Licensed 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.
*/
using System;
namespace Lucene.Net.Analysis{
/// <summary> Emits the entire input as a single token.</summary>
public class KeywordTokenizer : Tokenizer
{
private const int DEFAULT_BUFFER_SIZE = 256;
private bool done;
private char[] buffer;
public KeywordTokenizer(System.IO.TextReader input) : this(input, DEFAULT_BUFFER_SIZE)
{
}
public KeywordTokenizer(System.IO.TextReader input, int bufferSize) : base(input)
{
this.buffer = new char[bufferSize];
this.done = false;
}
public override Token Next()
{
if (!done)
{
done = true;
System.Text.StringBuilder buffer = new System.Text.StringBuilder();
int length;
while (true)
{
length = input.Read((System.Char[]) this.buffer, 0, this.buffer.Length);
if (length == - 1)
break;
buffer.Append(this.buffer, 0, length);
}
System.String text = buffer.ToString();
return new Token(text, 0, text.Length);
}
return null;
}
}
}
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