Class: Rigger::ExecutionStrategy::Selector

Inherits:
Object
  • Object
show all
Defined in:
lib/rigger/execution_strategy.rb

Instance Method Summary collapse

Constructor Details

#initialize(basic_strategy = BasicExecutionStrategy.new, strategies = [SerialExecutionStrategy.new, SingleExecutionStrategy.new]) ⇒ Selector

Returns a new instance of Selector.



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# File 'lib/rigger/execution_strategy.rb', line 36

def initialize(basic_strategy = BasicExecutionStrategy.new,
               strategies     = [SerialExecutionStrategy.new,
                                 SingleExecutionStrategy.new])
  @basic_strategy = basic_strategy
  @strategies     = strategies
end

Instance Method Details

#call(task) ⇒ Object 



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# File 'lib/rigger/execution_strategy.rb', line 43

def call(task)
  appropriate_strategies = @strategies.select do |s|
    s.appropriate_strategy_for?(task)
  end

  if appropriate_strategies.length > 1
    raise MultipleAppropriateStrategies, 
      "More than one strategy was appropriate for #{task.name}."
  else
    appropriate_strategies.first || @basic_strategy
  end
end