Add a data interface for manifest labels API

endpoints/api/manifest_models_interface.py

@@ -0,0 +1,42 @@
+from abc import ABCMeta, abstractmethod
+from collections import namedtuple
+
+from six import add_metaclass
+
+
+class ManifestLabel(
+  namedtuple('ManifestLabel', [
+    'uuid',
+    'key',
+    'value',
+    'source_type_name',
+    'media_type_name',
+    ])):
+  
+  def to_dict(self):
+    return {
+      'id': self.uuid,
+      'key': self.key,
+      'value': self.value,
+      'source_type': self.source_type_name,
+      'media_type': self.media_type_name,
+    }
+  
+  
+@add_metaclass(ABCMeta)
+class ManifestLabelInterface(object):
+  @abstractmethod
+  def get_manifest_labels(self, namespace_name, repository_name, manifestref, filter=None):
+    pass
+
+  @abstractmethod
+  def create_manifest_label(self, namespace_name, repository_name, manifestref, key, value, source_type_name, media_type_name):
+    pass
+  
+  @abstractmethod
+  def get_manifest_label(self, namespace_name, repository_name, manifestref, label_uuid):
+    pass
+  
+  @abstractmethod
+  def delete_manifest_label(self, namespace_name, repository_name, manifestref, label_uuid):
+    pass