Class: LanGrove::Plugin::BufferedPersistor

Inherits:
Persistor show all
Defined in:
lib/langrove/plugin/buffered_persistor.rb

Instance Attribute Summary

Attributes inherited from Base

#logger

Instance Method Summary collapse

Methods inherited from Persistor

#all_capsules, #fetch, #fetch_all, #fetch_all_handler, #fetch_handler, #gen_key, #initialize, #next_seq, #store_handler, #transform, type

Methods inherited from DataSource

type

Methods inherited from Base

#config_exception, #initialize, #type

Constructor Details

This class inherits a constructor from LanGrove::Plugin::Persistor

Instance Method Details

#store(handler) ⇒ Object 



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# File 'lib/langrove/plugin/buffered_persistor.rb', line 71

def store( handler )

  gen_key( handler ) if handler.key.nil?

  @key_column = handler.key['key'].first[0]

  key = handler.key['key'].first[1]

  @stored[key] = false

  @capsules[key] = YAML.load( 

    #
    # LAZY... deep copy through YAML serialize
    # 

    YAML.dump( handler.capsule ) 

  )

end

#store_all ⇒ Object 



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# File 'lib/langrove/plugin/buffered_persistor.rb', line 7

def store_all

  #
  # OVERRIDE
  # 
  # To store all capsules accumulated in
  # @capsules
  #

  @capsules.is_a? Hash

end

#validate_config ⇒ Object 



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# File 'lib/langrove/plugin/buffered_persistor.rb', line 20

def validate_config

  unless defined?( EM ) and EM.reactor_running?

    raise LanGrove::PluginException.new(

      "#{self.class} only runs inside EventMachine enabled daemons"

    )

  end

  super

  @capsules = {}
  @stored = {} 

  @interval = @config[:interval]

  if @interval.nil?

    #
    # default to call store every 10 minutes
    #

    @logger.info "#{self.class} defaulting :interval: to 10 minutes"

    @interfal = 600

  end

  EM.add_periodic_timer( @interval ) do

    if @running

      @logger.warn "#{self.class} already running store_all"

      break

    end

    @running = true
    
    store_all

    @running = false

  end

end