Class: SCXMLServer::StatefulProtocol

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

Instance Attribute 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_server.rb', line 15

def initialize
  super()
end

Instance Attribute Details

#manager ⇒ Object

Returns the value of attribute manager.



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# File 'lib/MINT-core/manager/scxml_server.rb', line 13

def manager
  @manager
end

Instance Method Details

#send_active_state(name) ⇒ Object 



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# File 'lib/MINT-core/manager/scxml_server.rb', line 58

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

#send_inactive_state(name) ⇒ Object 



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# File 'lib/MINT-core/manager/scxml_server.rb', line 62

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

#subscribe_redis(interactor, name) ⇒ Object 



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# File 'lib/MINT-core/manager/scxml_server.rb', line 19

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

      if(@state_store[key])
        activated_states =  @state_store[key]

        current_active_states = found["states"] + found["abstract_states"]

        deactivated_states = activated_states - current_active_states

        # send deactivate states

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

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

end