/* 
 
Copyright 2006 Rene Grothmann, modified by Eric Hakenholz

This file is part of C.a.R. software.

    C.a.R. is a 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, version 3 of the License.

    C.a.R. 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.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 */
 
 
 package rene.util;

public class SimpleByteBuffer {
	private int Size, N;
	private byte Buf[];

	public SimpleByteBuffer(final int size) {
		Size = size;
		Buf = new byte[size];
		N = 0;
	}

	public SimpleByteBuffer(final byte b[]) {
		Size = b.length;
		Buf = b;
		N = 0;
	}

	public void append(final byte c) {
		if (N < Size)
			Buf[N++] = c;
		else {
			Size = 2 * Size;
			final byte NewBuf[] = new byte[Size];
			for (int i = 0; i < N; i++)
				NewBuf[i] = Buf[i];
			Buf = NewBuf;
			Buf[N++] = c;
		}
	}

	public void clear() {
		N = 0;
	}

	public byte[] getBuffer() {
		return Buf;
	}

	public byte[] getByteArray() {
		final byte b[] = new byte[N];
		for (int i = 0; i < N; i++)
			b[i] = Buf[i];
		return b;
	}

	public int size() {
		return N;
	}
}