Class: Flipper::Adapters::Fallback

Inherits:
SimpleDelegator
  • Object
show all
Defined in:
lib/flipper/adapters/fallback.rb

Constant Summary collapse

VERSION = 
'0.1.0'

Instance Method Summary collapse

Constructor Details

#initialize(primary_adapter, options = {}, fallback_adapter = Flipper::Adapters::Memory.new) ⇒ Fallback

Returns a new instance of Fallback.



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# File 'lib/flipper/adapters/fallback.rb', line 11

def initialize(primary_adapter, options = {}, fallback_adapter = Flipper::Adapters::Memory.new)
  super(primary_adapter)
  @primary_adapter = primary_adapter
  @fallback_adapter = fallback_adapter

  @delegate_sd_obj = primary_adapter

  @on_error = options[:on_error] || lambda do |error, primary_adapter, fallback_adapter|
    STDERR.puts("[Flipper::Adapters::Fallback] Primary adapter(#{primary_adapter.inspect}) Failure! #{error}")
    STDERR.puts("[Flipper::Adapters::Fallback] Falling back to #{fallback_adapter.inspect})")
  end

  @timeout = options[:timeout]
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(m, *args, &block) ⇒ Object 



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# File 'lib/flipper/adapters/fallback.rb', line 26

def method_missing(m, *args, &block)
  Timeout::timeout(@timeout) do
    begin
      super
    rescue => error
      @on_error.call(error, @primary_adapter, @fallback_adapter)
      @fallback_adapter.__send__(m, *args, &block)
    end
  end
end