Class: RJR::Messages::Request

Inherits:
Object
  • Object
show all
Defined in:
lib/rjr/messages/request.rb

Overview

Message sent from client to server to invoke a JSON-RPC method

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(args = {}) ⇒ Request

RJR Request Message initializer

Parameters:

  • args (Hash) (defaults to: {}) —

    options to set on request

Options Hash (args):

  • :message (String) —

    json string received from sender

  • :headers (Hash) —

    optional headers to set in request and subsequent messages

  • :method (String) —

    method to invoke on server

  • :args (Array<Object>) —

    to pass to server method, all must be convertable to/from json



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# File 'lib/rjr/messages/request.rb', line 38

def initialize(args = {})
  parse_args(args)
end

Instance Attribute Details

#headers ⇒ Object

Optional headers to add to json outside of standard json-rpc request



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# File 'lib/rjr/messages/request.rb', line 27

def headers
  @headers
end

#jr_args ⇒ Object

Arguments source is passing to destination method



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# File 'lib/rjr/messages/request.rb', line 21

def jr_args
  @jr_args
end

#jr_method ⇒ Object

Method source is invoking on the destination



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# File 'lib/rjr/messages/request.rb', line 18

def jr_method
  @jr_method
end

#json_message ⇒ Object

Message string received from the source



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# File 'lib/rjr/messages/request.rb', line 15

def json_message
  @json_message
end

#msg_id ⇒ Object

ID of the message in accordance w/ json-rpc specification



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# File 'lib/rjr/messages/request.rb', line 24

def msg_id
  @msg_id
end

Class Method Details

.is_request_message?(message) ⇒ true, false

Class helper to determine if the specified string is a valid json-rpc method request

Parameters:

  • message (String) —

    string message to check

Returns:

  • (true, false) —

    indicating if message is request message



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# File 'lib/rjr/messages/request.rb', line 75

def self.is_request_message?(message)
  begin
     # FIXME log error
     parsed = JSONParser.parse(message)
     parsed.has_key?('method') && parsed.has_key?('id')
  rescue Exception => e
    false
  end
end

Instance Method Details

#to_json(*a) ⇒ Object

Convert request message to json



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# File 'lib/rjr/messages/request.rb', line 86

def to_json(*a)
  {'jsonrpc' => '2.0',
   'id'      => @msg_id,
   'method'  => @jr_method,
   'params'  => @jr_args}.merge(@headers).to_json(*a)
end

#to_s ⇒ Object

Convert request to string format



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# File 'lib/rjr/messages/request.rb', line 94

def to_s
  to_json.to_s
end