Module: WaveBox::GenerateWave::ClassMethods

Defined in:
lib/wave_box/generate_wave.rb

Instance Method Summary collapse

Instance Method Details

#can_generate_wave(config) ⇒ Object

Raises:

  • (ArgumentError)


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# File 'lib/wave_box/generate_wave.rb', line 35

def can_generate_wave(config)
  raise ArgumentError, "Missing redis" unless config[:redis]
  raise ArgumentError, "Missing id lambda" unless config[:id]
  raise ArgumentError, "Missing wave name" unless config[:name]

  name = config[:name]
  [:redis, :expire, :max_size, :encode].each do |c|
    define_method "#{name}_outbox_#{c}" do config[c] end
  end

  if config[:redis].is_a? Symbol
    class_eval <<-RUBY
      def #{name}_outbox_redis_instance
        send( "#{config[:redis]}" )
      end
    RUBY
  else
    define_method "#{name}_outbox_redis_instance" do config[:redis] end
  end

  if config[:id].is_a? Symbol
    class_eval <<-RUBY
      def #{name}_outbox_id
        send("#{config[:id]}")
      end
    RUBY
  else
    define_method "#{name}_outbox_id" do config[:redis] end
  end

  define_method "#{name}_outbox_key" do "wave:#{name}:outbox:#{send("#{name}_outbox_id")}" end

  class_eval <<-RUBY
    def #{name}_outbox
      @#{name}_outbox ||= WaveBox::Box.new({
                          :encode => #{name}_outbox_encode,
                          :redis => #{name}_outbox_redis_instance,
                          :key => #{name}_outbox_key,
                          :expire => #{name}_outbox_expire,
                          :max_size => #{name}_outbox_max_size})
    end
  RUBY

end