trunk/java/com/l2jserver/util/network/BaseSendablePacket.java

@@ -0,0 +1,139 @@
+/*
+ * Copyright (C) 2004-2014 L2J Server
+ * 
+ * This file is part of L2J Server.
+ * 
+ * L2J Server 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.
+ * 
+ * L2J Server 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.util.network;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.util.logging.Logger;
+
+/**
+ * This class ...
+ * @version $Revision: 1.2.4.1 $ $Date: 2005/03/27 15:30:11 $
+ */
+public abstract class BaseSendablePacket
+{
+	private static final Logger _log = Logger.getLogger(BaseSendablePacket.class.getName());
+	
+	private final ByteArrayOutputStream _bao;
+	
+	protected BaseSendablePacket()
+	{
+		_bao = new ByteArrayOutputStream();
+	}
+	
+	protected void writeD(int value)
+	{
+		_bao.write(value & 0xff);
+		_bao.write((value >> 8) & 0xff);
+		_bao.write((value >> 16) & 0xff);
+		_bao.write((value >> 24) & 0xff);
+	}
+	
+	protected void writeH(int value)
+	{
+		_bao.write(value & 0xff);
+		_bao.write((value >> 8) & 0xff);
+	}
+	
+	protected void writeC(int value)
+	{
+		_bao.write(value & 0xff);
+	}
+	
+	protected void writeF(double org)
+	{
+		long value = Double.doubleToRawLongBits(org);
+		_bao.write((int) (value & 0xff));
+		_bao.write((int) ((value >> 8) & 0xff));
+		_bao.write((int) ((value >> 16) & 0xff));
+		_bao.write((int) ((value >> 24) & 0xff));
+		_bao.write((int) ((value >> 32) & 0xff));
+		_bao.write((int) ((value >> 40) & 0xff));
+		_bao.write((int) ((value >> 48) & 0xff));
+		_bao.write((int) ((value >> 56) & 0xff));
+	}
+	
+	protected void writeS(String text)
+	{
+		try
+		{
+			if (text != null)
+			{
+				_bao.write(text.getBytes("UTF-16LE"));
+			}
+		}
+		catch (Exception e)
+		{
+			_log.warning(getClass().getSimpleName() + ": " + e.getMessage());
+		}
+		
+		_bao.write(0);
+		_bao.write(0);
+	}
+	
+	protected void writeB(byte[] array)
+	{
+		try
+		{
+			_bao.write(array);
+		}
+		catch (IOException e)
+		{
+			_log.warning(getClass().getSimpleName() + ": " + e.getMessage());
+		}
+	}
+	
+	protected void writeQ(long value)
+	{
+		_bao.write((int) (value & 0xff));
+		_bao.write((int) ((value >> 8) & 0xff));
+		_bao.write((int) ((value >> 16) & 0xff));
+		_bao.write((int) ((value >> 24) & 0xff));
+		_bao.write((int) ((value >> 32) & 0xff));
+		_bao.write((int) ((value >> 40) & 0xff));
+		_bao.write((int) ((value >> 48) & 0xff));
+		_bao.write((int) ((value >> 56) & 0xff));
+	}
+	
+	public int getLength()
+	{
+		return _bao.size() + 2;
+	}
+	
+	public byte[] getBytes()
+	{
+		// if (this instanceof Init)
+		// writeD(0x00); //reserve for XOR initial key
+		
+		writeD(0x00); // reserve for checksum
+		
+		int padding = _bao.size() % 8;
+		if (padding != 0)
+		{
+			for (int i = padding; i < 8; i++)
+			{
+				writeC(0x00);
+			}
+		}
+		
+		return _bao.toByteArray();
+	}
+	
+	public abstract byte[] getContent() throws IOException;
+}