org.opendaylight.capwap.binding_802_11.WTP_Radio_Information.java Source code

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Here is the source code for org.opendaylight.capwap.binding_802_11.WTP_Radio_Information.java

Source

/*
 * Copyright (c) 2015 Mahesh Govind 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.capwap.binding_802_11;

import io.netty.buffer.ByteBuf;
import org.opendaylight.capwap.ODLCapwapConsts;
import org.opendaylight.capwap.ODLCapwapMessageElement;
import org.opendaylight.capwap.msgelements.subelem.ACInformationSubElement;
import org.opendaylight.capwap.utils.ByteManager;

/**
 * Created by flat on 14/04/16.
 */

/*
 0                   1                   2                   3
  0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 |   Radio ID    |                  Radio Type                   |
 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 |  Radio Type   |
 +-+-+-+-+-+-+-+-+
 Radio Type:   The type of radio present.  Note this is a bit field
  that is used to specify support for more than a single type of
  PHY/MAC.  The field has the following format:
    
     0 1 2 3 4 5 6 7
    +-+-+-+-+-+-+-+-+
    |Reservd|N|G|A|B|
    +-+-+-+-+-+-+-+-+
    
     Reservd:  A set of reserved bits for future use.  All
     implementations complying with this protocol MUST set to zero
     any bits that are reserved in the version of the protocol
     supported by that implementation.  Receivers MUST ignore all
     bits not defined for the version of the protocol they support.
    
  N:   An IEEE 802.11n radio.
    
  G:   An IEEE 802.11g radio.
    
  A:   An IEEE 802.11a radio.
    
  B:   An IEEE 802.11b radio.
    
    
 */
public class WTP_Radio_Information implements ODLCapwapMessageElement {
    protected byte radioId = 0;
    protected byte radioType = 0;
    protected final byte nBitMask = 0b00001000;
    protected final byte gBitMask = 0b00000100;
    protected final byte aBitMask = 0b00000010;
    protected final byte bBitMask = 0b00000001;

    int msgElem = 0;

    //Make the wtp information for this  WTP
    public WTP_Radio_Information(byte radioId) {

        this.radioId = radioId;
    }

    public WTP_Radio_Information() {
        this.msgElem = ODLCapwapConsts.IEEE_80211_WTP_RADIO_INFORMATION;

    }

    public byte getRadioId() {
        return radioId;
    }

    public void setRadioId(byte radioId) {
        this.radioId = radioId;
    }

    public byte getRadioType() {
        return radioType;
    }

    public void setRadioType(byte radioType) {
        this.radioType = radioType;
    }

    //N fifth bit
    public void set802_11n() {
        this.radioType |= nBitMask;
    }

    //n Fifth bit
    public boolean is802_11nSet() {

        return ((this.radioType & nBitMask) != 0);
    }

    public void set802_11g() {
        this.radioType |= gBitMask;
    }

    public boolean is802_11gSet() {

        return ((this.radioType & gBitMask) != 0);
    }

    public void set802_11a() {
        this.radioType |= aBitMask;
    }

    public boolean is802_11aSet() {

        return ((this.radioType & aBitMask) != 0);
    }

    public void set802_11b() {
        this.radioType |= bBitMask;
    }

    public boolean is802_11bSet() {

        return ((this.radioType & bBitMask) != 0);
    }

    public int encode(ByteBuf buf) {

        int start = buf.writerIndex();
        //encode Radio ID
        buf.writeByte(this.radioId); //radio id is  less than 32 , hence direct byte is fine
        buf.writeBytes(new byte[] { 0, 0, 0 }); //3 bytes are  reserved
        buf.writeByte(this.radioType); //again a byte enumeration
        //encode stations
        return buf.writerIndex() - start;
    }

    @Override
    public ODLCapwapMessageElement decode(ByteBuf buf) {
        return null;
    }

    @Override
    public int getType() {
        return this.msgElem;
    }

}