Method: Smpp::Transceiver#send_concat_mt

Defined in:
lib/smpp/transceiver.rb

#send_concat_mt(message_id, source_addr, destination_addr, message, options = {}) ⇒ Object

Send a concatenated message with a body of > 160 characters as multiple messages.



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# File 'lib/smpp/transceiver.rb', line 33

def send_concat_mt(message_id, source_addr, destination_addr, message, options = {})
  logger.debug "Sending concatenated MT: #{message}"
  if @state == :bound
    # Split the message into parts of 153 characters. (160 - 7 characters for UDH)
    parts = []
    while message.size > 0 do
      parts << message.slice!(0..Smpp::Transceiver.get_message_part_size(options))
    end
    
    0.upto(parts.size-1) do |i|
      udh = sprintf("%c", 5)            # UDH is 5 bytes.
      udh << sprintf("%c%c", 0, 3)      # This is a concatenated message 

      #TODO Figure out why this needs to be an int here, it's a string elsewhere
      udh << sprintf("%c", message_id)  # The ID for the entire concatenated message

      udh << sprintf("%c", parts.size)  # How many parts this message consists of
      udh << sprintf("%c", i+1)         # This is part i+1
      
      options[:esm_class] = 64 # This message contains a UDH header.
      options[:udh] = udh

      pdu = Pdu::SubmitSm.new(source_addr, destination_addr, parts[i], options)
      write_pdu pdu
      
      # This is definately a bit hacky - multiple PDUs are being associated with a single
      # message_id.
      @ack_ids[pdu.sequence_number] = message_id
    end
  else
    raise InvalidStateException, "Transceiver is unbound. Connot send MT messages."
  end
end