added ArangoDBAsync.getRole()

Author: mpv1989

src/main/java/com/arangodb/ArangoDBAsync.java

@@ -34,6 +34,7 @@
 import com.arangodb.entity.ArangoDBVersion;
 import com.arangodb.entity.LogEntity;
 import com.arangodb.entity.LogLevelEntity;
+import com.arangodb.entity.ServerRole;
 import com.arangodb.entity.UserEntity;
 import com.arangodb.internal.ArangoDBConstants;
 import com.arangodb.internal.ArangoExecutorAsync;
@@ -461,6 +462,15 @@ public CompletableFuture<ArangoDBVersion> getVersion() {
 		return db().getVersion();
 	}
 
+	/**
+	 * Returns the server role.
+	 * 
+	 * @return the server role
+	 */
+	public CompletableFuture<ServerRole> getRole() {
+		return executor.execute(getRoleRequest(), getRoleResponseDeserializer());
+	}
+
 	/**
 	 * Create a new user. This user will not have access to any database. You need permission to the _system database in
 	 * order to execute this call.