self.get_handler

in cookbooks/fb_storage/libraries/storage_handlers.rb [33:60]

• 25 lines of code
• 6 McCabe index (conditional complexity)

      def self.get_handler(device, node)
        return @@handler_cache[device] if @@handler_cache[device]

        devname = FB::Storage.device_name_from_path(device)
        if node['block_device'][devname]
          info = node['block_device'][devname].to_hash
        else
          Chef::Log.debug(
            "fb_storage: #{devname} is not in node['block_device']",
          )
          info = {}
        end
        node['fb_storage']['_handlers'].each do |handler|
          unless handler.superclass == FB::Storage::Handler
            fail "fb_storage: handler #{handler.name} is not a subclass of " +
                 'FB::Storage::Handler, aborting!'
          end
          if handler.match?(devname, info)
            Chef::Log.debug("fb_storage: Creating #{handler.name} handler")
            obj = handler.new(device, node)
            @@handler_cache[device] = obj
            return obj
          end
        end

        fail "fb_storage: unknown handler for device #{devname}"
      end