public static ListenableFuture fastFail()

in src/main/java/com/spotify/futures/FuturesExtra.java [137:155]

• 18 lines of code
• 2 McCabe index (conditional complexity)

  public static <A, B> ListenableFuture<A> fastFail(
      final ListenableFuture<B> conditionValue,
      final ListenableFuture<A> future,
      final Validator<B> validator,
      final Executor executor) {
    return Futures.transformAsync(
        conditionValue,
        value -> {
          try {
            validator.validate(value);
            return future;

          } catch (Exception e) {
            future.cancel(false);
            throw e;
          }
        },
        executor);
  }