class TrailerParser
  def Parse(elements)
    if elements.length < 5
      throw('The expected parameter count is 5')
    end

    trailer = Trailer.new
    trailer.OrderDataCount = elements[1]
    trailer.CreditCardTransactionDataCount = elements[2]
    trailer.BoletoTransactionDataCount = elements[3]
    trailer.OnlineDebitTransactionDataCount = elements[4].chomp

    return trailer
  end
end