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feat: Mac address-based robot switcher (#54)
* feat: switch constants based on mac address * feat: printing unknown mac address * docs: explain all the tools in MacAddressUtil * docs: reword * chore: input prototype bot Mac Address
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,90 @@ | ||
| package frc.utility; | ||
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| import frc.robot.Robot; | ||
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| import java.net.NetworkInterface; | ||
| import java.net.SocketException; | ||
| import java.util.Arrays; | ||
| import java.util.Enumeration; | ||
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| /** | ||
| * Utility class for getting the MAC address of the robot radio and determining the robot's identity. | ||
| * | ||
| * @author 2910 & 1678 | ||
| */ | ||
| public class MacAddressUtil { | ||
| public static final byte[] PROTOTYPE_BOT = new byte[]{ | ||
| (byte) 0x00, (byte) 0x80, (byte) 0x2f, (byte) 0x19, (byte) 0x21, (byte) 0xd9 | ||
| }; | ||
| public static final byte[] PRACTICE_BOT = new byte[]{ | ||
| (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00 | ||
| }; | ||
| public static final byte[] COMPETITION_BOT = new byte[]{ | ||
| (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00 | ||
| }; | ||
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| /** | ||
| * Gets the MAC address of the robot's radio. | ||
| * | ||
| * @return the MAC address of the robot's radio | ||
| * @throws SocketException if no MAC address is found | ||
| */ | ||
| public static byte[] getMacAddress() throws SocketException { | ||
| Enumeration<NetworkInterface> networkInterface = NetworkInterface.getNetworkInterfaces(); | ||
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| NetworkInterface temp; | ||
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| while (networkInterface.hasMoreElements()) { | ||
| temp = networkInterface.nextElement(); | ||
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| byte[] mac = temp.getHardwareAddress(); | ||
| if (mac != null) { | ||
| return mac; | ||
| } | ||
| } | ||
| return null; | ||
| } | ||
|
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| /** | ||
| * Converts a raw MAC address byte array to a string. | ||
| * | ||
| * @param mac the MAC address byte array | ||
| * @return the MAC address as a string | ||
| */ | ||
| public static String macToString(byte[] mac) { | ||
| StringBuilder sb = new StringBuilder(); | ||
| for (int i = 0; i < mac.length; i++) { | ||
| sb.append(String.format("%02X%s", mac[i], (i < mac.length - 1) ? ":" : "")); | ||
| } | ||
| return sb.toString(); | ||
| } | ||
|
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| /** | ||
| * Enum representing the possible robot identities. | ||
| */ | ||
| public enum RobotIdentity { | ||
| PROTOTYPE_BOT, | ||
| PRACTICE_BOT, | ||
| COMPETITION_BOT; | ||
|
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| /** | ||
| * Gets the robot identity based on the MAC address. | ||
| * | ||
| * @param mac the MAC address | ||
| * @return the robot identity | ||
| */ | ||
| public static RobotIdentity getRobotIdentity(byte[] mac) { | ||
| if (Arrays.compare(mac, MacAddressUtil.PROTOTYPE_BOT) == 0) { | ||
| return PROTOTYPE_BOT; | ||
| } else if (Arrays.compare(mac, MacAddressUtil.PRACTICE_BOT) == 0) { | ||
| return PRACTICE_BOT; | ||
| } else if (Arrays.compare(mac, MacAddressUtil.COMPETITION_BOT) == 0) { | ||
| return COMPETITION_BOT; | ||
| } else { | ||
| System.out.println("Unknown MAC Address: " + macToString(mac)); | ||
| System.out.println("Assuming Prototype Bot"); | ||
| return PROTOTYPE_BOT; // assume prototype bot for now, change this to comp later | ||
| } | ||
| } | ||
| } | ||
| } |