initial commit

java/src/game/network/PacketSplitter.java

@@ -0,0 +1,55 @@
+package game.network;
+
+import java.util.List;
+
+import game.net.buffer.ByteBuf;
+import game.net.buffer.Unpooled;
+import game.net.channel.ChannelHandlerContext;
+import game.net.handler.codec.ByteToMessageDecoder;
+import game.net.handler.codec.CorruptedFrameException;
+
+public class PacketSplitter extends ByteToMessageDecoder
+{
+    protected void decode(ChannelHandlerContext p_decode_1_, ByteBuf p_decode_2_, List<Object> p_decode_3_) throws Exception
+    {
+        p_decode_2_.markReaderIndex();
+        byte[] abyte = new byte[3];
+
+        for (int i = 0; i < abyte.length; ++i)
+        {
+            if (!p_decode_2_.isReadable())
+            {
+                p_decode_2_.resetReaderIndex();
+                return;
+            }
+
+            abyte[i] = p_decode_2_.readByte();
+
+            if (abyte[i] >= 0)
+            {
+                PacketBuffer packetbuffer = new PacketBuffer(Unpooled.wrappedBuffer(abyte));
+
+                try
+                {
+                    int j = packetbuffer.readVarIntFromBuffer();
+
+                    if (p_decode_2_.readableBytes() >= j)
+                    {
+                        p_decode_3_.add(p_decode_2_.readBytes(j));
+                        return;
+                    }
+
+                    p_decode_2_.resetReaderIndex();
+                }
+                finally
+                {
+                    packetbuffer.release();
+                }
+
+                return;
+            }
+        }
+
+        throw new CorruptedFrameException("length wider than 21-bit");
+    }
+}