Android Open Source - bluetooth Beacon Filter

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Back to project page bluetooth.

License

The source code is released under:

MIT License

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Java Source Code

package com.mauriciotogneri.bluetooth.beacons;
/*from   ww  w . j  av a 2  s  .  c  om*/
public abstract class BeaconFilter
{
  private static final char[] HEX_CHARS =
    {
        '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'
    };
  
  protected static byte toByte(String hex)
  {
    int result = Integer.parseInt(hex, 16);
    
    if (result > 127)
    {
      result -= 256;
    }
    
    return (byte)result;
  }
  
  protected int toInt(byte[] bytes)
  {
    return Integer.parseInt(toHex(bytes), 16);
  }
  
  protected String toHex(byte[] bytes)
  {
    char[] chars = new char[bytes.length * 2];
    
    for (int i = 0; i < bytes.length; i++)
    {
      int value = bytes[i] & 0xFF;
      chars[i * 2] = BeaconFilter.HEX_CHARS[value >>> 4];
      chars[i * 2 + 1] = BeaconFilter.HEX_CHARS[value & 0x0F];
    }
    
    return new String(chars);
  }
  
  public abstract Beacon getBeacon(String macAddress, int rssi, byte[] data);
}

Java Source Code List