UnsynchronizedBufferedOutputStream.java

package org.caudexorigo.io;

import java.io.FilterOutputStream;
import java.io.IOException;
import java.io.OutputStream;

public class UnsynchronizedBufferedOutputStream extends FilterOutputStream
{
	public UnsynchronizedBufferedOutputStream(OutputStream out)
	{
		this(out, 8192);
	}

	public UnsynchronizedBufferedOutputStream(OutputStream out, int size)
	{
		super(out);
		if (size <= 0)
		{
			throw new IllegalArgumentException("Buffer size <= 0");
		}
		else
		{
			buf = new byte[size];
			return;
		}
	}

	protected void flushBuffer() throws IOException
	{
		if (count > 0)
		{
			out.write(buf, 0, count);
			count = 0;
		}
	}

	public void write(int b) throws IOException
	{
		if (count >= buf.length)
			flushBuffer();
		buf[count++] = (byte) b;
	}

	public void write(byte b[], int off, int len) throws IOException
	{
		if (len >= buf.length)
		{
			flushBuffer();
			out.write(b, off, len);
			return;
		}
		if (len > buf.length - count)
			flushBuffer();
		System.arraycopy(b, off, buf, count, len);
		count += len;
	}

	public void flush() throws IOException
	{
		flushBuffer();
		out.flush();
	}

	protected byte buf[];
	protected int count;
}