cache_get (Merb::Cache::MemoryStore)

    # File lib/merb-cache/cache-store/memory.rb, line 89
      def cache_get(key)
        if @cache.key?(key)
          _data, _expire = *cache_read(key)
          if _expire.nil? || Time.now < _expire
            Merb.logger.info("cache: hit (#{key})")
            return _data
          end
          @mutex.synchronize do @cache.delete(key) end
        end
        Merb.logger.info("cache: miss (#{key})")
        nil
      end