/*
* @(#)HexOutputStream.java 1.31 03/12/19
*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*/
package com.sun.corba.se.impl.orbutil;
import java.io.StringWriter;
import java.io.OutputStream;
import java.io.IOException;
/**
* Writes each input byte as a 2 byte hexidecimal output pair making it
* possible to turn arbitrary binary data into an ASCII format.
* The high 4 bits of the byte is translated into the first byte.
*
* @author Jeff Nisewanger
*/
public class HexOutputStream extends OutputStream
{
static private final char hex[] = {
'0', '1', '2', '3', '4', '5', '6', '7',
'8', '9', 'a', 'b', 'c', 'd', 'e', 'f'
};
private StringWriter writer;
/**
* Creates a new HexOutputStream.
* @param w The underlying StringWriter.
*/
public
HexOutputStream(StringWriter w) {
writer = w;
}
/**
* Writes a byte. Will block until the byte is actually
* written.
* param b The byte to write out.
* @exception java.io.IOException I/O error occurred.
*/
public synchronized void write(int b) throws IOException {
writer.write(hex[((b >> 4) & 0xF)]);
writer.write(hex[((b >> 0) & 0xF)]);
}
public synchronized void write(byte[] b) throws IOException {
write(b, 0, b.length);
}
public synchronized void write(byte[] b, int off, int len)
throws IOException
{
for(int i=0; i < len; i++) {
write(b[off + i]);
}
}
}
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