Dalli store/get large value

gistfile1.rb

require 'dalli'

module Dalli
  class Client
    def set_large(key, val, ttl = 0)
      chunk_size = 1024 * 900
      i = 0
      start_idx = 0
      next_chunk = val[start_idx..(start_idx + chunk_size - 1)]
      start_idx += chunk_size
      set(key, 0, ttl, :raw => true)
      multi do
        while next_chunk
          set("#{key}_#{i}", next_chunk, ttl, :raw => true)
          incr(key)
          i += 1
          next_chunk = val[start_idx..(start_idx + chunk_size - 1)]
          start_idx += chunk_size
        end
      end
      return i
    end

    def get_large(key)
      num_chunks = get(key).to_i
      keys = (0..(num_chunks - 1)).to_a.map {|i| "#{key}_#{i}" }
      return get_multi(keys).sort.map {|k,v| v}.join
    end
  end
end