MACAddress.java

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/*******************************************************************************
 * Copyright 2010 Neuron Robotics, LLC
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 ******************************************************************************/
package com.neuronrobotics.sdk.common;
// TODO: Auto-generated Javadoc
public class MACAddress implements ISendable {
    
    public static final String BROADCAST = "00:00:00:00:00:00";
    
    private byte [] address = new byte[]{0,0,0,0,0,0};
    
    public MACAddress(){
    }
    public MACAddress(String address) {
        init(address);
    }
    
    private void init(String address){
        address = address.toUpperCase().trim();
        address = address.replace("-", ":");
        
        if (address.matches("^([0-9A-Z]{2}:){5}[0-9A-Z]{2}$")) {
            String[] strs = address.split(":");
            for(int i=0; i<6; i++) {
                this.address[i] = Integer.decode("0x" + strs[i]).byteValue();
            }
        }
    }
    
    public MACAddress(byte[] address) {
        for(int i=0; i<6; i++) {
            this.address[i] = address[i];
        }
    }
    
    public boolean equals(Object o) {
        if(!(o instanceof MACAddress)) { throw new RuntimeException("Object being compared is not of type MACAddress"); }
 
        return equals((MACAddress) o);
    }
    
    public boolean equals(MACAddress addr){
        for(int i=0; i<6; i++) {
            if(addr.address[i] != address[i]) {
                return false;
            }
        }
        return true;
    }
    
    /* (non-Javadoc)
     * @see java.lang.Object#toString()
     */
    public String toString() {
        String rtn = "";
        for(int i=0;i< address.length;i++){
            rtn += getHexByteString(i)+":";
        }
        rtn = rtn.substring(0, rtn.length()-1);
        return rtn.toUpperCase();
    }
    
    public String getHexByteString(int index){
        return String.format("%02x", address[index]);
    }
    
    public boolean isValid() {
        return true;
    }
 
    /* (non-Javadoc)
     * @see com.neuronrobotics.sdk.common.ISendable#getBytes()
     */
     
    public byte[] getBytes() {
        return address;
    }
    
    public void increment(){
        if(address[5]<255) {
            address[5]++;
            return;
        }else {
            if(address[4]<255) {
                address[5]=0;
                address[4]++;
            }else {
                if(address[3]<255) {
                    address[5]=0;
                    address[4]=0;
                    address[3]++;
                }else {
                    throw new RuntimeException("MAC Address can not be incremented!");
                }
            }
        }
    }
    
    public void setValues(MACAddress address2) {
        //System.out.println("Setting new values: "+address2);
        for(int i=0; i<6; i++) {
            address[i] = address2.address[i];   
        }
    }
}