loading vocabularies on first request (lazy loading) instead of on

start-up

entity-management-mongo/src/main/java/eu/europeana/entitymanagement/mongo/repository/VocabularyRepository.java

@@ -19,24 +19,26 @@ public class VocabularyRepository  {
 
   private static final String ID = "id";
 
-  private List<Vocabulary> vocabs = new ArrayList<>();
+  private List<Vocabulary> europeanaRoles;
 
-  public void loadIntoMemory() {
-    if(vocabs.isEmpty()) {
-      vocabs.addAll(
+  public List<Vocabulary> getEuropeanaRoles() {
+    if(europeanaRoles==null) {
+      europeanaRoles=new ArrayList<>();
+      europeanaRoles.addAll(
           datastore.find(Vocabulary.class)
           .iterator()
           .toList());
     }
+    return europeanaRoles;
   }
-  
+
   /**
    * retrieve records by their id, from the in-memory collection
    * @param vocabularyIds
    * @return
    */
   public List<Vocabulary> findByUri(List<String> vocabularyIds) {
-    return vocabs.stream()
+    return getEuropeanaRoles().stream()
     .filter(el -> vocabularyIds.contains(el.getId()))
     .toList();
   }
@@ -87,4 +89,5 @@ public void dropCollection() {
   public long countRecords() {
     return datastore.find(Vocabulary.class).count();
   }
+
 }

entity-management-web/src/main/java/eu/europeana/entitymanagement/config/AppAutoconfig.java

@@ -87,7 +87,6 @@ public void ensureDatabaseInitialization() throws ApplicationInitializationExcep
         }
         vocabRepository.saveBulk(roles);
     }
-    vocabRepository.loadIntoMemory();
   }
 
   @Bean(name = BEAN_EM_DATA_SOURCES)