public static Future map()

in src/main/java/org/apache/cassandra/distributed/shared/FutureUtils.java [50:58]

• 8 lines of code
• 4 McCabe index (conditional complexity)

    public static <A, B> Future<B> map(Future<A> future, Function<? super A, ? extends B> fn) {
        if (future == null) throw new NullPointerException("Future is null");
        if (fn == null) throw new NullPointerException("Function is null");

        if (future instanceof CompletableFuture) {
            return ((CompletableFuture<A>) future).thenApply(fn);
        }
        return new MapFuture<>(future, fn);
    }