Class: LitmusPaper::AgentCheckHandler

Inherits:
Object
  • Object
show all
Defined in:
lib/litmus_paper/agent_check_handler.rb

Class Method Summary collapse

Class Method Details

.handle(service) ⇒ Object 



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# File 'lib/litmus_paper/agent_check_handler.rb', line 3

def self.handle(service)
  @cache ||= LitmusPaper::Cache.new(
    LitmusPaper.cache_location,
    "litmus_agent_cache",
    LitmusPaper.cache_ttl
  )
  output = []

  if !service
    return "failed#BAD_INPUT"
  end

  health = @cache.get(service)
  if !health
    @cache.set(
      service,
      health = LitmusPaper.check_service(service)
    )
  end

  if health.nil?
    output << "failed#NOT_FOUND"
  else
    case health.direction
    when :up, :health
      output << "ready" # administrative state
      output << "up" # operational state
    when :down
      output << "drain" # administrative state
    when :none
      if health.ok?
        output << "ready" # administrative state
        output << "up" # operational state
      else
        output << "down" # operational state
      end
    end
    output << "#{health.value.to_s}%"
  end
  output.join("\t")
end