Class: Writer::JSTP::Dispatch

Inherits:
Discoverer::Pattern
  • Object
show all
Defined in:
lib/writer/jstp/dispatch.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(source) ⇒ Dispatch

Returns a new instance of Dispatch.



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# File 'lib/writer/jstp/dispatch.rb', line 6

def initialize source
  super source
  @config = ::JSTP::Configuration.instance
  @pool = {}
end

Instance Attribute Details

#pool ⇒ Object

Returns the value of attribute pool.



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# File 'lib/writer/jstp/dispatch.rb', line 4

def pool
  @pool
end

Instance Method Details

#json ⇒ Object 



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# File 'lib/writer/jstp/dispatch.rb', line 64

def json
  JSON.dump @source
end

#short ⇒ Object 



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# File 'lib/writer/jstp/dispatch.rb', line 101

def short
  unless @source.body
    "#{@source.method} #{@source.resource.join('/')}"
  else
    "#{@source.method} #{@source.resource.join('/')}?#{JSON.dump(@source.body)}"
  end
end

#string ⇒ Object 



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# File 'lib/writer/jstp/dispatch.rb', line 68

def string 
  response = "#{@source.method} #{@source.resource.join('/')} #{@source.protocol.join('/')}\n"
  @source.each do |key, value|
    unless key == "method" || key == "resource" || key == "protocol" || key == "body"
      if value.is_a? Array
        response += "#{key}: #{value.join('/')}\n"
      else
        if key == 'timestamp'
          response += "#{key}: #{Time.at(value)}\n"
        else
          response += "#{key}: #{value}\n"
        end
      end
    end
  end

  unless @source.body.nil?
    response += "\n"
    if @source.body.is_a? Hash
      @source.body.each do |key, value|
        begin
          response += "#{key}: #{JSON.dump(value)}\n"
        rescue JSON::GeneratorError => e 
          response += "#{key}: #{value}\n"
        end
      end
    else
      response += JSON.dump @source.body
    end
  end
  response
end

#tcp(port = nil) ⇒ Object

Dispatch applying the TCP strategy



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# File 'lib/writer/jstp/dispatch.rb', line 47

def tcp port = nil
  port = @config.port.outbound if port.nil?
  host = @source['resource'].first

  @pool[host] ||= TCPSocket.new host, port

  if @pool[host].closed?
    @pool[host] = TCPSocket.new host, port
  elsif not @pool[host].stat.readable?
    @pool[host].close
    @pool[host] = TCPSocket.new host, port
  end

  @pool[host].puts @source.to.json
  @config.logger.debug @source.to_s
end

#websocket(port = nil) ⇒ Object

Dispatch this applying the websocket strategy



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# File 'lib/writer/jstp/dispatch.rb', line 13

def websocket port = nil
  host = @source["resource"].first
  path = @source["resource"][1..-1].join('/')
  if port.nil?
    connection_uri = "ws://#{host}:#{@config.port.outbound}/#{path}"
  else
    connection_uri = "ws://#{host}:#{port}/#{path}"
  end

  begin 
    ws = EM::WebSocketClient.connect connection_uri
    ws.callback do 
      ws.send_msg @source.to.json
      @config.logger.debug @source.to_s
      ws.close_connection_after_writing
    end
  rescue RuntimeError => e
    EM.run do
      ws = EM::WebSocketClient.connect connection_uri

      ws.callback do 
        ws.send_msg @source.to.json
        @config.logger.debug @source.to_s
        ws.close_connection_after_writing
      end

      ws.disconnect do 
        EM::stop_event_loop
      end
    end
  end
end