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// BufferedOutputStream.java - A buffered stream
/* Copyright (C) 1998, 1999 Cygnus Solutions
This file is part of libgcj.
This software is copyrighted work licensed under the terms of the
Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
details. */
package java.io;
/**
* @author Tom Tromey <tromey@cygnus.com>
* @date September 24, 1998
*/
/* Written using "Java Class Libraries", 2nd edition, ISBN 0-201-31002-3
* "The Java Language Specification", ISBN 0-201-63451-1
* Status: Complete to version 1.1.
*/
public class BufferedOutputStream extends FilterOutputStream
{
public BufferedOutputStream (OutputStream ox)
{
this (ox, 512);
}
public BufferedOutputStream (OutputStream ox, int size)
{
super (ox);
buf = new byte[size];
}
public synchronized void flush () throws IOException
{
out.write(buf, 0, count);
count = 0;
out.flush();
}
public synchronized void write (int b) throws IOException
{
// Flush output on overflow though JDK (1.2) doc may infer to flush on fill.
if (count < buf.length)
buf[count++] = (byte) b;
else
{
out.write(buf, 0, count);
count = 0;
out.write(b);
}
}
public synchronized void write (byte[] b, int off, int len)
throws IOException, NullPointerException, IndexOutOfBoundsException
{
// Flush output on overflow though JDK (1.2) doc may infer to flush on fill.
// If LEN < 0 then the downstream write will fail for us.
if (len >= 0 && count + len <= buf.length)
{
System.arraycopy(b, off, buf, count, len);
count += len;
}
else
{
out.write(buf, 0, count);
count = 0;
out.write(b, off, len);
}
}
// The buffer.
protected byte[] buf;
// Number of valid bytes in BUF.
protected int count;
}
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