Class: Hystrix::CommandExecutorPool

Inherits:
Object
  • Object
show all
Defined in:
lib/hystrix/executor_pool.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, size) ⇒ CommandExecutorPool

Returns a new instance of CommandExecutorPool.



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# File 'lib/hystrix/executor_pool.rb', line 34

def initialize(name, size)
	self.name = name
	self.size = size
	self.executors = []
	self.lock = Mutex.new
	self.circuit_supervisor = Circuit.supervise
	size.times do
		self.executors << CommandExecutor.new
	end
end

Instance Attribute Details

#circuit_supervisor ⇒ Object

Returns the value of attribute circuit_supervisor.



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# File 'lib/hystrix/executor_pool.rb', line 32

def circuit_supervisor
  @circuit_supervisor
end

#executors ⇒ Object

Returns the value of attribute executors.



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# File 'lib/hystrix/executor_pool.rb', line 31

def executors
  @executors
end

#lock ⇒ Object

Returns the value of attribute lock.



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# File 'lib/hystrix/executor_pool.rb', line 31

def lock
  @lock
end

#name ⇒ Object

Returns the value of attribute name.



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# File 'lib/hystrix/executor_pool.rb', line 30

def name
  @name
end

#size ⇒ Object

Returns the value of attribute size.



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# File 'lib/hystrix/executor_pool.rb', line 30

def size
  @size
end

Instance Method Details

#shutdown ⇒ Object 



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# File 'lib/hystrix/executor_pool.rb', line 58

def shutdown
	lock.synchronize do
		until executors.size == 0 do
			for i in (0...executors.size)
				unless executors[i].locked?
					executors[i] = nil
				end
			end
			executors.compact!
			sleep 0.1
		end
	end
end

#take ⇒ Object

Raises:



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# File 'lib/hystrix/executor_pool.rb', line 45

def take
	lock.synchronize do
		for executor in self.executors
			unless executor.locked?
				executor.lock
				return executor
			end
		end
	end

	raise ExecutorPoolFullError.new("Unable to get executor from #{self.name} pool.")
end