1 files changed, 35 insertions, 0 deletions
diff --git a/lib/gitlab/cache/metadata.rb b/lib/gitlab/cache/metadata.rb
new file mode 100644
index 00000000000..d6c89b5b2c3
--- /dev/null
+++ b/lib/gitlab/cache/metadata.rb
@@ -0,0 +1,35 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module Cache
+    # Value object for cache metadata
+    class Metadata
+      VALID_BACKING_RESOURCES = [:cpu, :database, :gitaly, :memory, :unknown].freeze
+      DEFAULT_BACKING_RESOURCE = :unknown
+
+      def initialize(
+        cache_identifier:,
+        feature_category:,
+        caller_id: Gitlab::ApplicationContext.current_context_attribute(:caller_id),
+        backing_resource: DEFAULT_BACKING_RESOURCE
+      )
+        @cache_identifier = cache_identifier
+        @feature_category = Gitlab::FeatureCategories.default.get!(feature_category)
+        @caller_id = caller_id
+        @backing_resource = fetch_backing_resource!(backing_resource)
+      end
+
+      attr_reader :caller_id, :cache_identifier, :feature_category, :backing_resource
+
+      private
+
+      def fetch_backing_resource!(resource)
+        return resource if VALID_BACKING_RESOURCES.include?(resource)
+
+        raise "Unknown backing resource: #{resource}" if Gitlab.dev_or_test_env?
+
+        DEFAULT_BACKING_RESOURCE
+      end
+    end
+  end
+end