Add a data interface for manifest labels API

endpoints/api/manifest_models_pre_oci.py

@@ -0,0 +1,50 @@
+from manifest_models_interface import ManifestLabel, ManifestLabelInterface
+from data import model
+
+
+class ManifestLabelPreOCI(ManifestLabelInterface):
+  def get_manifest_labels(self, namespace_name, repository_name, manifestref, filter=None):
+    try:
+      tag_manifest = model.tag.load_manifest_by_digest(namespace_name, repository_name, manifestref)
+    except model.DataModelException:
+      return None
+
+    labels = model.label.list_manifest_labels(tag_manifest, prefix_filter=filter)
+    return [self._label(l) for l in labels]
+
+  def create_manifest_label(self, namespace_name, repository_name, manifestref, key, value, source_type_name, media_type_name):
+    try:
+      tag_manifest = model.tag.load_manifest_by_digest(namespace_name, repository_name, manifestref)
+    except model.DataModelException:
+      return None
+
+    return self._label(model.label.create_manifest_label(tag_manifest, key, value, source_type_name, media_type_name))
+  
+  def get_manifest_label(self, namespace_name, repository_name, manifestref, label_uuid):
+    try:
+      tag_manifest = model.tag.load_manifest_by_digest(namespace_name, repository_name, manifestref)
+    except model.DataModelException:
+      return None
+
+    return self._label(model.label.get_manifest_label(label_uuid, tag_manifest))
+
+  def delete_manifest_label(self, namespace_name, repository_name, manifestref, label_uuid):
+    try:
+      tag_manifest = model.tag.load_manifest_by_digest(namespace_name, repository_name, manifestref)
+    except model.DataModelException:
+      return None
+
+    return self._label(model.label.delete_manifest_label(label_uuid, tag_manifest))
+  
+  def _label(self, label_obj):
+    if not label_obj:
+      return None
+    return ManifestLabel(
+      uuid=label_obj.uuid,
+      key=label_obj.key,
+      value=label_obj.value,
+      source_type_name=label_obj.source_type.name,
+      media_type_name=label_obj.media_type.name,
+    )
+
+pre_oci_model = ManifestLabelPreOCI()