Refactor: Use putIfAbsent() to show the intention more clearly

Change-Id: I2fad1709cc6f8827d382a07b55cd89d2814ede36

Refactor: Use putIfAbsent() to show the intention more clearly
Change-Id: I2fad1709cc6f8827d382a07b55cd89d2814ede36
Sho SHIMIZU · Gerrit Code Review
Commit 73130f790fdc394f8d1b07cc42fd45609d2a75b0 73130f79 1 parent 34c1843d
Showing 1 changed file with 1 additions and 2 deletions
core/store/dist/src/main/java/org/onosproject/store/newresource/impl/ConsistentResourceStore.java
--- a/core/store/dist/src/main/java/org/onosproject/store/newresource/impl/ConsistentResourceStore.java
View file @73130f7
+++ b/core/store/dist/src/main/java/org/onosproject/store/newresource/impl/ConsistentResourceStore.java
View file @73130f7
@@ -292,9 +292,8 @@ public class ConsistentResourceStore extends AbstractStore<ResourceEvent, Resour
      * @return true if the operation succeeds, false otherwise.
      */
     private <K, V> boolean appendValues(TransactionalMap<K, List<V>> map, K key, List<V> values) {
-         List<V> oldValues = map.get(key);
+         List<V> oldValues = map.putIfAbsent(key, new ArrayList<>(values));
         if (oldValues == null) {
-             map.put(key, new ArrayList<>(values));
             return true;
         }