Merge pull request #324 from europeana/EA-3824-load-vocabs-into-memory

load vocabularies into memory

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

@@ -18,13 +18,39 @@ public class VocabularyRepository  {
   Datastore datastore;
 
   private static final String ID = "id";
+
+  private List<Vocabulary> europeanaRoles;
+
+  public List<Vocabulary> getEuropeanaRoles() {
+    synchronized(this) {
+      if(europeanaRoles==null) {
+        europeanaRoles=new ArrayList<>();
+        europeanaRoles.addAll(
+            datastore.find(Vocabulary.class)
+            .iterator()
+            .toList());
+      }
+      return europeanaRoles;
+    }
+  }
 
   /**
-   * retrieve records by their id
-   * @param vocabularyIds
-   * @return
+   * retrieve records by their id, from the in-memory collection
+   * @param vocabularyIds ids to search for
+   * @return list of Vocabularies
    */
   public List<Vocabulary> findByUri(List<String> vocabularyIds) {
+    return getEuropeanaRoles().stream()
+    .filter(el -> vocabularyIds.contains(el.getId()))
+    .toList();
+  }
+
+  /**
+   * retrieve records by their id
+   * @param vocabularyIds ids to search for
+   * @return list of Vocabularies
+   */
+  public List<Vocabulary> findInDbByUri(List<String> vocabularyIds) {
     List<Filter> filters = new ArrayList<>();
     filters.add(in(ID, vocabularyIds));
     return datastore.find(Vocabulary.class)
@@ -65,4 +91,5 @@ public void dropCollection() {
   public long countRecords() {
     return datastore.find(Vocabulary.class).count();
   }
+
 }

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

@@ -86,7 +86,7 @@ public void ensureDatabaseInitialization() throws ApplicationInitializationExcep
           roles.add(vocab);
         }
         vocabRepository.saveBulk(roles);
-      }
+    }
   }
 
   @Bean(name = BEAN_EM_DATA_SOURCES)