l2j-server-game/L2J_CommunityServer/java/com/l2jserver/communityserver/util/buffer/SynchronizedBufferedByteWriter.java

/*
 * This program is 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, either version 3 of the License, or (at your option) any later
 * version.
 * 
 * This program 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 com.l2jserver.communityserver.util.buffer;

import java.util.Arrays;

/**
 * @author Forsaiken
 */
public final class SynchronizedBufferedByteWriter extends AbstractBufferedByteWriter
{
	public SynchronizedBufferedByteWriter()
	{
		super(32);
	}
	
	public SynchronizedBufferedByteWriter(final int size)
	{
		super(size);
	}
	
	@Override
	public final void writeC(final int value)
	{
		synchronized(buf)
		{
			expand(1);
			buf[wIndex++] = (byte)(value & 0x000000FF);
		}
	}
	
	@Override
	public final void writeH(final int value)
	{
		synchronized(buf)
		{
			expand(2);
			buf[wIndex++] = (byte)(value & 0x000000FF);
			buf[wIndex++] = (byte)(value >> 8 & 0x000000FF);
		}
	}
	
	@Override
	public final void writeD(final int value)
	{
		synchronized(buf)
		{
			expand(4);
			buf[wIndex++] = (byte)(value & 0x000000FF);
			buf[wIndex++] = (byte)(value >> 8 & 0x000000FF);
			buf[wIndex++] = (byte)(value >> 16 & 0x000000FF);
			buf[wIndex++] = (byte)(value >> 24 & 0x000000FF);
		}
	}
	
	@Override
	public final void writeF(final double value)
	{
		writeQ(Double.doubleToRawLongBits(value));
	}
	
	@Override
	public final void writeQ(final long value)
	{
		synchronized(buf)
		{
			expand(8);
			buf[wIndex++] = (byte)(value & 0x000000FF);
			buf[wIndex++] = (byte)(value >> 8 & 0x000000FF);
			buf[wIndex++] = (byte)(value >> 16 & 0x000000FF);
			buf[wIndex++] = (byte)(value >> 24 & 0x000000FF);
			buf[wIndex++] = (byte)(value >> 32 & 0x000000FF);
			buf[wIndex++] = (byte)(value >> 40 & 0x000000FF);
			buf[wIndex++] = (byte)(value >> 48 & 0x000000FF);
			buf[wIndex++] = (byte)(value >> 56 & 0x000000FF);
		}
	}
	
	@Override
	public final void writeS(final String text)
	{
		if (text != null)
		{
			synchronized(buf)
			{
				expand(text.length() + 2);
				for (final char c : text.toCharArray())
				{
					buf[wIndex] = (byte)c;
					wIndex += 2;
				}
				wIndex += 2;
			}
		}
		else
		{
			synchronized(buf)
			{
				expand(2);
				wIndex += 2;
			}
		}
	}
	
	@Override
	public final void writeB(final byte[] data)
	{
		try
		{
			synchronized(buf)
			{
				expand(data.length);
				System.arraycopy(data, 0, buf, wIndex, data.length);
				wIndex += data.length;
			}
		}
		catch (Exception e)
		{
			e.printStackTrace();
		}
	}
	
	private synchronized void expand(final int expand)
	{
		final int newSize = wIndex + expand;
		if (newSize > buf.length)
			buf = Arrays.copyOf(buf, Math.max(buf.length << 1, newSize));
	}
}