/*
* Copyright (c) 1998-2010 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
* Free SoftwareFoundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.vfs;
import com.caucho.util.ByteBuffer;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
/**
* Utility class for converting a byte stream to a character stream.
*
* <pre>
* ByteToChar converter = new ByteToChar();
* converter.setEncoding("utf-8");
* converter.clear();
*
* converter.addChar('H');
* converter.addByte(0xc0);
* converter.addByte(0xb8);
*
* String value = converter.getConvertedString();
* </pre>
*/
public final class OldByteToChar extends ByteToChar {
private ByteBuffer bb;
private String javaEncoding;
/**
* Creates an uninitialized converter. Use <code>init</code> to initialize.
*/
OldByteToChar()
{
bb = new ByteBuffer();
}
/**
* Sets the encoding for the converter.
*/
public void setEncoding(String encoding)
throws UnsupportedEncodingException
{
javaEncoding = Encoding.getJavaName(encoding);
}
/**
* Clears the converted
*/
public void clear()
{
bb.clear();
}
/**
* Gets the converted string.
*/
public String getConvertedString()
throws IOException
{
return bb.toString(javaEncoding);
}
/**
* Adds the next byte.
*
* @param b the byte to write
*/
public void addByte(int b)
throws IOException
{
bb.add(b);
}
/**
* Adds the next character.
*
* @param nextCh the character to write
*/
public void addChar(char nextCh)
throws IOException
{
// The oldByteToChar doesn't handle this case
bb.add((byte) nextCh);
}
/**
* Prints the object.
*/
public String toString()
{
return "[OldByteToChar " + javaEncoding + "]";
}
}