--- a/Plugin/ResourceHierarchyCache.h	Mon Aug 14 10:25:40 2023 +0200
+++ b/Plugin/ResourceHierarchyCache.h	Fri Aug 18 12:08:49 2023 +0200
@@ -38,6 +38,7 @@
     std::unique_ptr<ICache>   cache_;   // Maps resources to their parents
     std::unique_ptr<ICache>   orthancToDicom_;
     std::unique_ptr<ICache>   dicomToOrthanc_;
+    std::unique_ptr<ICache>   labels_;
 
     std::string ComputeKey(Orthanc::ResourceType level,
                            const std::string& identifier) const;
@@ -60,6 +61,10 @@
       return LookupParent(target, OrthancResource(level, identifier));
     }
 
+    void UpdateResourceFromOrthanc(OrthancResource& parent,
+                                   std::set<std::string>& labels,
+                                   const OrthancResource& resource);
+
   public:
     explicit ResourceHierarchyCache(ICacheFactory& factory);
 
@@ -89,6 +94,9 @@
                          Orthanc::ResourceType level,
                          const std::string& dicomUid);
 
+    void GetLabels(std::set<std::string>& labels,
+                   const OrthancResource& resource);
+
 #if BUILD_UNIT_TESTS == 1
     FRIEND_TEST(DefaultAuthorizationParser, Parse);
   protected: