init, thx MrExtremez

2026-07-07 00:32:06 +00:00 · 2019-06-18 15:04:35 -04:00
commit ea51313125
2488 changed files with 150207 additions and 0 deletions
@@ -0,0 +1,82 @@
+package redone.net;
+
+import org.apache.mina.common.ByteBuffer;
+import org.apache.mina.common.IoSession;
+import org.apache.mina.filter.codec.ProtocolEncoder;
+import org.apache.mina.filter.codec.ProtocolEncoderOutput;
+
+public class RS2ProtocolEncoder implements ProtocolEncoder {
+
+	/**
+	 * Only CodecFactory can create us.
+	 */
+	protected RS2ProtocolEncoder() {
+	}
+
+	@Override
+	/**
+	 * Encodes a message.
+	 * @param session
+	 * @param message
+	 * @param out
+	 */
+	public void encode(IoSession session, Object message,
+			ProtocolEncoderOutput out) throws Exception {
+		try {
+			synchronized (session) {
+				Packet p = (Packet) message;
+				byte[] data = p.getData();
+				int dataLength = p.getLength();
+				ByteBuffer buffer;
+				if (!p.isBare()) {
+					buffer = ByteBuffer.allocate(dataLength + 3);
+					int id = p.getId();
+					buffer.put((byte) id);
+					if (p.getSize() != Packet.Size.Fixed) { // variable length
+						// Logger.log("variable length: id="+id+",dataLength="+dataLength);
+						if (p.getSize() == Packet.Size.VariableByte) {
+							if (dataLength > 255) {
+								// then we can represent
+								// with 8 bits!
+								throw new IllegalArgumentException(
+										"Tried to send packet length "
+												+ dataLength
+												+ " in 8 bits [pid="
+												+ p.getId() + "]");
+							}
+							buffer.put((byte) dataLength);
+						} else if (p.getSize() == Packet.Size.VariableShort) {
+							if (dataLength > 65535) {
+								// then we can represent
+								// with 16 bits!
+								throw new IllegalArgumentException(
+										"Tried to send packet length "
+												+ dataLength
+												+ " in 16 bits [pid="
+												+ p.getId() + "]");
+							}
+							buffer.put((byte) (dataLength >> 8));
+							buffer.put((byte) dataLength);
+						}
+					}
+				} else {
+					buffer = ByteBuffer.allocate(dataLength);
+				}
+				buffer.put(data, 0, dataLength);
+				buffer.flip();
+				out.write(buffer);
+			}
+		} catch (Exception err) {
+			err.printStackTrace();
+		}
+	}
+
+	@Override
+	/**
+	 * Releases resources used by this encoder.
+	 * @param session
+	 */
+	public void dispose(IoSession session) throws Exception {
+	}
+
+}