/*
* Copyright (c) 2005 Henri Sivonen
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
package nu.validator.io;
import java.io.IOException;
import java.io.InputStream;
import java.io.Reader;
import java.nio.charset.CharacterCodingException;
/**
* @version $Id$
* @author hsivonen
*/
public class NonBufferingAsciiInputStreamReader extends Reader {
private InputStream stream;
/**
* @param arg0
*/
public NonBufferingAsciiInputStreamReader(InputStream stream) {
this.stream = stream;
}
/**
* @throws java.io.IOException
*/
public void close() throws IOException {
stream.close();
}
/**
* @see java.io.Reader#read()
*/
public int read() throws IOException {
int rv = stream.read();
if (rv < 0x80) {
return rv;
} else {
throw new CharacterCodingException();
}
}
/**
* @see java.io.Reader#read(char[], int, int)
*/
public int read(char[] buf, int off, int len) throws IOException {
int val = read();
if(val == -1) {
return -1;
} else {
buf[off] = (char) val;
return 1;
}
}
}