Android Open Source - mac-hopper Mac

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Back to project page mac-hopper.

License

The source code is released under:

MIT License

If you think the Android project mac-hopper listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.

Java Source Code

package uk.co.danhawkes.machopper.mac;
//  ww  w .  j av a 2s  . c  om
import java.security.SecureRandom;
import java.util.Arrays;
import java.util.Locale;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import android.os.Parcel;
import android.os.Parcelable;

import com.google.common.io.BaseEncoding;

public class Mac implements Parcelable {

  private static final int MAC_LEN_BYTES = 6;
  private static final SecureRandom RANDOM = new SecureRandom();
  private static final Pattern PATTERN = Pattern.compile("[^a-f0-9]", Pattern.CASE_INSENSITIVE);

  private final byte[] mData;

  public Mac(byte[] bytes) {
    mData = Arrays.copyOf(bytes, bytes.length);
  }

  public Mac() {
    mData = new byte[MAC_LEN_BYTES];
    RANDOM.nextBytes(mData);
  }

  public Mac(Parcel parcel) {
    mData = new byte[MAC_LEN_BYTES];
    parcel.readByteArray(mData);
  }

  public byte[] getRawData() {
    return Arrays.copyOf(mData, mData.length);
  }

  @Override
  public String toString() {
    return toString(false, ":");
  }

  public String toString(boolean lowercase, String delimiter) {
    BaseEncoding encoder = BaseEncoding.base16();
    if (delimiter != null) {
      encoder = encoder.withSeparator(delimiter, 2);
    }
    if (lowercase) {
      encoder = encoder.lowerCase();
    }
    return encoder.encode(mData);
  }

  public static Mac fromString(String macString) {
    Matcher matcher = PATTERN.matcher(macString);
    macString = matcher.replaceAll("").toUpperCase(Locale.US);
    return new Mac(BaseEncoding.base16().upperCase().decode(macString));
  }

  @Override
  public int describeContents() {
    return 0;
  }

  @Override
  public void writeToParcel(Parcel arg0, int arg1) {
    arg0.writeByteArray(mData);
  }

  public static final Parcelable.Creator<Mac> CREATOR = new Parcelable.Creator<Mac>() {
    @Override
    public Mac createFromParcel(Parcel in) {
      return new Mac(in);
    }

    @Override
    public Mac[] newArray(int size) {
      return new Mac[size];
    }
  };
}

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