Java Bien!

I’ve just started a Google Moderator on Coding styles. The idea is to find which coding style preferences are accepted by the majority, which interest nobody and which are balanced between likers and haters.

Google Moderator is not the perfect platform for this kind of experiment (no code formatting, no urls…) but I wanted to give it a try.

Feel free to add a lot more questions.

Blog Coding standards, Google moderator, Java

Yesterday was the 4th edition of JavaCampParis. It was a great event in a great place (Google’s offices in Paris). I must say that after a very boring Scrum User Group, this was a real change. Read more…

Blog Java, javacamp

Quizz : Que fait cette méthode ?

Question subsidiaire : comment rendre le code plus lisible (en Java) ?

public static <D, R> List<R> inParallel(int nbThreads, List<D> dataList,
final Function<D, R> dataToAction) {
  Function<D, Callable<R>> dataToCallable = new Function<D, Callable<R>>() {
    @Override
    public Callable<R> apply(final D data) {
      return new Callable<R>() {
        @Override
        public R call() {
          return dataToAction.apply(data);
        }
      };
    }
  };

  Function<Future<R>, R> futureToResult = new Function<Future<R>, R>() {
    @Override
    public R apply(Future<R> future) {
      try {
        return future.get();
      } catch (Exception e) {
        throw new RuntimeException(e);
      }
    }
  };

  ExecutorService executorService = Executors.newFixedThreadPool(nbThreads);

  try {
    List<Callable<R>> actions = Lists.transform(dataList, dataToCallable);
    List<Future<R>> results = executorService.invokeAll(actions);

    return Lists.transform(results, futureToResult);
  } catch (InterruptedException e) {
    throw new RuntimeException(e);
  } finally {
    executorService.shutdown();
  }
}

Blog Java, quizz