Class: Fix::Protocol::Message

Inherits:
MessagePart show all
Defined in:
lib/fix/protocol/message.rb

Overview

Represents an instance of a FIX message

Instance Attribute Summary

Attributes inherited from MessagePart

#delegations, #name, #parse_failure

Instance Method Summary collapse

Methods inherited from MessagePart

collection, field, inherited, #initialize_node, #node_for_name, #nodes, parent_delegate, parse, #parse, part, structure, unordered

Constructor Details

#initialize ⇒ Message

Returns a new instance of Message.



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# File 'lib/fix/protocol/message.rb', line 26

def initialize
  super
  header.msg_type = MessageClassMapping.reverse_get(self.class)
end

Instance Method Details

#dump ⇒ String

Dumps this message as a FIX protocol message, it will automatically calculate the body length and and checksum

Returns:

  • (String) —

    The FIX message



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# File 'lib/fix/protocol/message.rb', line 37

def dump
  if valid?
    dumped = super
    header.body_length = dumped.gsub(/^8=[^\x01]+\x01/, '').gsub(/^9=[^\x01]+\x01/, '').length
    dumped = super
    "#{dumped}10=#{'%03d' % (dumped.bytes.inject(&:+) % 256)}\x01"
  end
end

#errors ⇒ Array<String>

Returns the errors relevant to the message header

Returns:

  • (Array<String>) —

    The errors on the message header



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# File 'lib/fix/protocol/message.rb', line 60

def errors
  if (version == 'FIX.4.4')
    super
  else
    [super, "Unsupported version: <#{version}>"].flatten
  end
end

#valid? ⇒ Boolean

Whether this instance is ready to be dumped as a valid FIX message

Returns:

  • (Boolean) —

    Whether there are errors present for this instance



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# File 'lib/fix/protocol/message.rb', line 51

def valid?
  (errors.nil? || errors.empty?) && parse_failure.nil?
end