Class: Servicy::RoundRobinLoadBalancer

Inherits:
LoadBalancer show all
Defined in:
lib/load_balancer/round_robin.rb

Instance Attribute Summary

Attributes inherited from LoadBalancer

#hosts

Instance Method Summary collapse

Methods inherited from LoadBalancer

#next

Constructor Details

#initialize ⇒ RoundRobinLoadBalancer

Returns a new instance of RoundRobinLoadBalancer.



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# File 'lib/load_balancer/round_robin.rb', line 3

def initialize
  super
  @last_host_index = {}
end

Instance Method Details

#next_for_service(service_name) ⇒ Object 



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# File 'lib/load_balancer/round_robin.rb', line 8

def next_for_service(service_name)
  @last_host_index[service_name] ||= 0
  service = hosts[service_name][@last_host_index[service_name]]
  @last_host_index[service_name] += 1
  if @last_host_index[service_name] >= hosts[service_name].length
    @last_host_index[service_name] = 0
  end
  service
end