1 files changed, 39 insertions, 0 deletions
diff --git a/lib/gitlab/ci/config/node/factory.rb b/lib/gitlab/ci/config/node/factory.rb
new file mode 100644
index 00000000000..787ca006f5a
--- /dev/null
+++ b/lib/gitlab/ci/config/node/factory.rb
@@ -0,0 +1,39 @@
+module Gitlab
+  module Ci
+    class Config
+      module Node
+        ##
+        # Factory class responsible for fabricating node entry objects.
+        #
+        # It uses Fluent Interface pattern to set all necessary attributes.
+        #
+        class Factory
+          class InvalidFactory < StandardError; end
+
+          def initialize(entry_class)
+            @entry_class = entry_class
+            @attributes = {}
+          end
+
+          def with(attributes)
+            @attributes.merge!(attributes)
+            self
+          end
+
+          def nullify!
+            @entry_class = Node::Null
+            self
+          end
+
+          def create!
+            raise InvalidFactory unless @attributes.has_key?(:value)
+
+            @entry_class.new(@attributes[:value]).tap do |entry|
+              entry.description = @attributes[:description]
+            end
+          end
+        end
+      end
+    end
+  end
+end