Class: SCXMLClient::StatefulProtocol

Inherits:
EventMachine::Connection
  • Object
show all
Includes:
EM::Protocols::LineText2
Defined in:
lib/MINT-core/manager/scxml_client.rb

Constant Summary collapse

@@host = 
nil
@@port = 
nil

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ StatefulProtocol

Returns a new instance of StatefulProtocol.



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# File 'lib/MINT-core/manager/scxml_client.rb', line 24

def initialize


  super()
end

Class Method Details

.config(host, port) ⇒ Object 



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# File 'lib/MINT-core/manager/scxml_client.rb', line 38

def self.config(host,port)
  @@host = host
  @@port = port
end

Instance Method Details

#send_active_state(name) ⇒ Object 



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# File 'lib/MINT-core/manager/scxml_client.rb', line 84

def send_active_state(name)
  send_data "1 #{name}\r\n"
end

#send_inactive_state(name) ⇒ Object 



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# File 'lib/MINT-core/manager/scxml_client.rb', line 88

def send_inactive_state(name)
  send_data "0 #{name}\r\n"
end

#subscribe_redis(interactor, name) ⇒ Object 



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# File 'lib/MINT-core/manager/scxml_client.rb', line 43

def subscribe_redis(interactor,name)
  @interactor = interactor
  @name = name

  redis = EventMachine::Hiredis.connect

  redis.pubsub.psubscribe(@interactor) { |key, message|

    found=MultiJson.decode message
    if @name.nil? or @name.eql? found["name"]
      if found.has_key? "new_states"
        # send new state
        found["new_states"].each { |state|
          p "activated: #{state}"
          send_active_state state }
      end

      current_active_states = found["states"] + found["abstract_states"].split("|")
      if(SCXMLClient.state_store.has_key? key)
        activated_states =  SCXMLClient.state_store[key]



        deactivated_states = activated_states - current_active_states

        # send deactivate states

        deactivated_states.each {|state|
          p "deactivated: #{state}"
          send_inactive_state state
        }

        #save activated states

      end
      SCXMLClient.state_store[key] = current_active_states
    end
  }.callback { p "subscribed to #{@interactor} name #{@name}"}

end

#unbind ⇒ Object 



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# File 'lib/MINT-core/manager/scxml_client.rb', line 30

def unbind
  puts "#{@@host}: #{@@port}"
   puts "-- disconnected from remote server!"
   puts "-- attempting reconnection"
   #reconnect @@ip, @@port # use reconnect, already provided by E
  EventMachine.add_timer 15, proc { reconnect(@@host,@@port) }
end