A wrapper for memcache-client that swallows cache errors

mem_cache_wrapper.rb

class MemCacheWrapper
  
  def initialize(repository)
    @repository = repository
  end
  
  def self.handle_errors_for(*args)
    options = args.extract_options!
    args.each do |method|
      define_method method do |*x|
        wrap(options[:return]) { @repository.send(method, *x) }
      end
    end
  end
  
  handle_errors_for :get, :set, :add, :delete
  handle_errors_for :get_multi, :return => {}
  
private 
   
  def method_missing(*args)
    @repository.send(*args)
  end
  
  def wrap(error_result)
    yield
  rescue MemCache::MemCacheError => e
    error_result
  end
  
end