class Chef
    class Resource
        oldrun_action = self.instance_method(:run_action)
        define_method(:run_action) do |action|
            store_prestate
            oldrun_action.bind(self).call(action)
            store_poststate
        end

        def store_prestate
            @prestate = {}
        end
        def store_poststate
            @poststate = {}
        end
    end
end