Add RSetReactive.random

src/main/java/org/redisson/api/RSetReactive.java

@@ -36,6 +36,14 @@ public interface RSetReactive<V> extends RCollectionReactive<V> {
      */
     Publisher<V> removeRandom();
 
+    /**
+     * Returns random element from set
+     * in async mode
+     *
+     * @return
+     */
+    Publisher<V> random();
+
     /**
      * Move a member from this set to the given destination set in async mode.
      *

src/main/java/org/redisson/reactive/RedissonSetReactive.java

@@ -80,6 +80,11 @@ public class RedissonSetReactive<V> extends RedissonExpirableReactive implements
         return reactive(instance.removeRandomAsync());
     }
 
+    @Override
+    public Publisher<V> random() {
+        return reactive(instance.randomAsync());
+    }
+
     @Override
     public Publisher<Boolean> remove(Object o) {
         return reactive(instance.removeAsync(o));