Module: Fluent::PluginHelper::EventEmitter

Defined in:
lib/fluent/plugin_helper/event_emitter.rb

Instance Method Summary collapse

Instance Method Details

#after_shutdown ⇒ Object 



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# File 'lib/fluent/plugin_helper/event_emitter.rb', line 84

def after_shutdown
  @router = nil
  super
end

#close ⇒ Object

unset router many times to reduce test cost



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# File 'lib/fluent/plugin_helper/event_emitter.rb', line 89

def close # unset router many times to reduce test cost
  @router = nil
  super
end

#configure(conf) ⇒ Object 



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# File 'lib/fluent/plugin_helper/event_emitter.rb', line 78

def configure(conf)
  require 'fluent/engine'
  super
  @router = event_emitter_router(conf['@label'])
end

#event_emitter_router(label_name) ⇒ Object 



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# File 'lib/fluent/plugin_helper/event_emitter.rb', line 51

def event_emitter_router(label_name)
  if label_name
    if label_name == "@ROOT"
      Engine.root_agent.event_router
    else
      Engine.root_agent.find_label(label_name).event_router
    end
  elsif self.respond_to?(:as_secondary) && self.as_secondary
    if @primary_instance.has_router?
      @_event_emitter_lazy_init = true
      nil # primary plugin's event router is not initialized yet, here.
    else
      @primary_instance.context_router
    end
  else
    # `Engine.root_agent.event_router` is for testing
    self.context_router || Engine.root_agent.event_router
  end
end

#event_emitter_used_actually? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/fluent/plugin_helper/event_emitter.rb', line 47

def event_emitter_used_actually?
  @_event_emitter_used_actually
end

#has_router? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/fluent/plugin_helper/event_emitter.rb', line 43

def has_router?
  true
end

#initialize ⇒ Object 



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# File 'lib/fluent/plugin_helper/event_emitter.rb', line 71

def initialize
  super
  @_event_emitter_used_actually = false
  @_event_emitter_lazy_init = false
  @router = nil
end

#router ⇒ Object

stop : [-] shutdown : disable @router close : [-] terminate: [-]



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# File 'lib/fluent/plugin_helper/event_emitter.rb', line 27

def router
  @_event_emitter_used_actually = true
  if @_event_emitter_lazy_init
    @router = @primary_instance.router
  end
  if @router.respond_to?(:caller_plugin_id=)
    @router.caller_plugin_id = self.plugin_id
  end
  @router
end

#router=(r) ⇒ Object 



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# File 'lib/fluent/plugin_helper/event_emitter.rb', line 38

def router=(r)
  # not recommended now...
  @router = r
end

#terminate ⇒ Object 



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# File 'lib/fluent/plugin_helper/event_emitter.rb', line 94

def terminate
  @router = nil
  super
end