1 files changed, 36 insertions, 0 deletions
diff --git a/lib/gitlab/ci/config/external/mapper/base.rb b/lib/gitlab/ci/config/external/mapper/base.rb
new file mode 100644
index 00000000000..d2f56d0b8f6
--- /dev/null
+++ b/lib/gitlab/ci/config/external/mapper/base.rb
@@ -0,0 +1,36 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module Ci
+    class Config
+      module External
+        class Mapper
+          # Base class for mapper classes
+          class Base
+            def initialize(context)
+              @context = context
+            end
+
+            def process(*args)
+              context.logger.instrument(mapper_instrumentation_key) do
+                process_without_instrumentation(*args)
+              end
+            end
+
+            private
+
+            attr_reader :context
+
+            def process_without_instrumentation
+              raise NotImplementedError
+            end
+
+            def mapper_instrumentation_key
+              "config_mapper_#{self.class.name.demodulize.downcase}".to_sym
+            end
+          end
+        end
+      end
+    end
+  end
+end