Method: BLE.UUID

Defined in:
lib/ble/uuid.rb

.UUID(val) ⇒ String

Cast value to a well-formatted 128bit UUID string

Parameters:

  • val (String, Integer) —

    uuid

Returns:

  • (String) —

    well formated 128bit UUID



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# File 'lib/ble/uuid.rb', line 5

def self.UUID(val)
    case val
    when Integer
        if !(0..4294967295).include?(val)  # 2**32-1
            raise ArgumentError, "not a 16-bit or 32-bit UUID"
        end
        ([val].pack("L>").unpack('H*').first + GATT_BASE_UUID[8..-1])
    when String
        if val !~ UUID::REGEX
            raise ArgumentError, "not a 128bit uuid string"
        end
        val.downcase
    else raise ArgumentError, "invalid uuid type"
    end
end