+
+ if self == ArvadosBase
+ # Determine type from uuid and defer to the appropriate subclass.
+ return resource_class_for_uuid(uuid).find(uuid, opts)
+ end
+
+ # Only do one lookup on the API side per {class, uuid, workbench
+ # request} unless {cache: false} is given via opts.
+ cache_key = "request_#{Thread.current.object_id}_#{self.to_s}_#{uuid}"
+ if opts[:cache] == false
+ Rails.cache.write cache_key, $arvados_api_client.api(self, '/' + uuid)
+ end
+ hash = Rails.cache.fetch cache_key do
+ $arvados_api_client.api(self, '/' + uuid)
+ end
+ new.private_reload(hash)