Class: Kitchen::Instance::FSM Private
- Inherits:
-
Object
- Object
- Kitchen::Instance::FSM
- Defined in:
- lib/kitchen/instance.rb
Overview
This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.
The simplest finite state machine pseudo-implementation needed to manage an Instance.
Constant Summary collapse
- TRANSITIONS =
This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future.
[:destroy, :create, :converge, :setup, :verify].freeze
Class Method Summary collapse
-
.actions(last = nil, desired) ⇒ Array<Symbol>
private
Returns an Array of all transitions to bring an Instance from its last reported transistioned state into the desired transitioned state.
-
.index(transition) ⇒ Object
private
Determines the index of a state in the state lifecycle vector.
Class Method Details
.actions(last = nil, desired) ⇒ Array<Symbol>
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
Returns an Array of all transitions to bring an Instance from its last reported transistioned state into the desired transitioned state.
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# File 'lib/kitchen/instance.rb', line 648 def self.actions(last = nil, desired) last_index = index(last) desired_index = index(desired) if last_index == desired_index || last_index > desired_index Array(TRANSITIONS[desired_index]) else TRANSITIONS.slice(last_index + 1, desired_index - last_index) end end |
.index(transition) ⇒ Object
This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.
Determines the index of a state in the state lifecycle vector. Woah.
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# File 'lib/kitchen/instance.rb', line 666 def self.index(transition) if transition.nil? 0 else TRANSITIONS.find_index { |t| t == transition.to_sym } end end |