org.opendaylight.protocol.bmp.impl.BmpMessageHeaderDecoder Maven / Gradle / Ivy
/*
* Copyright (c) 2015 Cisco Systems, Inc. and others. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 which accompanies this distribution,
* and is available at http://www.eclipse.org/legal/epl-v10.html
*/
package org.opendaylight.protocol.bmp.impl;
import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
public final class BmpMessageHeaderDecoder extends LengthFieldBasedFrameDecoder {
private static final int MAX_FRAME_SIZE = 65535;
private static final int VERSION_SIZE = 1;
private static final int LENGTH_SIZE = 4;
/*
0 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8
+-+-+-+-+-+-+-+-+
| Version |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Message Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Msg. Type |
+---------------+
*/
public BmpMessageHeaderDecoder() {
super(MAX_FRAME_SIZE, VERSION_SIZE, LENGTH_SIZE, -VERSION_SIZE - LENGTH_SIZE, 0);
}
}