Class: RailwayIpc::IncomingMessage

Inherits:
Object
  • Object
show all
Defined in:
lib/railway_ipc/incoming_message.rb

Defined Under Namespace

Classes: InvalidMessage, ParserError

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(payload) ⇒ IncomingMessage

Returns a new instance of IncomingMessage.



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# File 'lib/railway_ipc/incoming_message.rb', line 7

def initialize(payload)
  @parsed_payload = JSON.parse(payload)
  @type = parsed_payload['type']
  @payload = payload
  @errors = {}
rescue JSON::ParserError => e
  raise RailwayIpc::IncomingMessage::ParserError.new(e)
end

Instance Attribute Details

#errors ⇒ Object (readonly)

Returns the value of attribute errors.



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# File 'lib/railway_ipc/incoming_message.rb', line 5

def errors
  @errors
end

#parsed_payload ⇒ Object (readonly)

Returns the value of attribute parsed_payload.



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# File 'lib/railway_ipc/incoming_message.rb', line 5

def parsed_payload
  @parsed_payload
end

#payload ⇒ Object (readonly)

Returns the value of attribute payload.



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# File 'lib/railway_ipc/incoming_message.rb', line 5

def payload
  @payload
end

#type ⇒ Object (readonly)

Returns the value of attribute type.



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# File 'lib/railway_ipc/incoming_message.rb', line 5

def type
  @type
end

Instance Method Details

#correlation_id ⇒ Object 



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# File 'lib/railway_ipc/incoming_message.rb', line 24

def correlation_id
  decoded.correlation_id
end

#decoded ⇒ Object 



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# File 'lib/railway_ipc/incoming_message.rb', line 34

def decoded
  @decoded ||=
    begin
      protobuf_msg = Base64.decode64(parsed_payload['encoded_message'])
      decoder = Kernel.const_get(type)
      decoder.decode(protobuf_msg)
    rescue Google::Protobuf::ParseError => e
      raise RailwayIpc::IncomingMessage::ParserError.new(e)
    rescue NameError
      RailwayIpc::Messages::Unknown.decode(protobuf_msg)
    end
end

#stringify_errors ⇒ Object 



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# File 'lib/railway_ipc/incoming_message.rb', line 47

def stringify_errors
  errors.values.join(', ')
end

#user_uuid ⇒ Object 



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# File 'lib/railway_ipc/incoming_message.rb', line 20

def user_uuid
  decoded.user_uuid
end

#uuid ⇒ Object 



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# File 'lib/railway_ipc/incoming_message.rb', line 16

def uuid
  decoded.uuid
end

#valid? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/railway_ipc/incoming_message.rb', line 28

def valid?
  errors[:uuid] = 'uuid is required' unless uuid.present?
  errors[:correlation_id] = 'correlation_id is required' unless correlation_id.present?
  errors.none?
end