Method longToUID

src/uid/UniqueId.java:1477–1490

Converts a Long to a byte array with the proper UID width @param uid The UID to convert @param width The width of the UID in bytes @return The UID as a byte array @throws IllegalStateException if the UID is larger than the width would allow @since 2.1

(final long uid, final short width)

   * @since 2.1
   */
  public static byte[] longToUID(final long uid, final short width) {
    // Verify that we're going to drop bytes that are 0.
    final byte[] padded = Bytes.fromLong(uid);
    for (int i = 0; i < padded.length - width; i++) {
      if (padded[i] != 0) {
        final String message = "UID " + Long.toString(uid) + 
          " was too large for " + width + " bytes";
        LOG.error("OMG " + message);
        throw new IllegalStateException(message);
      }
    }
    // Shrink the ID on the requested number of bytes.
    return Arrays.copyOfRange(padded, padded.length - width, padded.length);
  }
  
  /**
   * Appends the given UID to the given string buffer, followed by "\\E".