/*
* Copyright (c) 1998-2011 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 Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.quercus.env;
import java.io.InputStream;
/**
* Represents an ISO-8859-1 input stream.
*/
public class StringInputStream extends InputStream {
private final String _string;
private final int _length;
private int _index;
public StringInputStream(String s)
{
_string = s;
_length = s.length();
}
public int read()
{
if (_index < _length)
return _string.charAt(_index++);
else
return -1;
}
public int read(byte []buffer, int offset, int length)
{
int sublen = _length - _index;
if (sublen == 0)
return -1;
if (length < sublen)
sublen = length;
String s = _string;
int index = _index;
for (int i = 0; i < sublen; i++) {
buffer[offset + i] = (byte) s.charAt(index + i);
}
_index = index + sublen;
return sublen;
}
}