Vertx - Future Example

CompletableFuture to wait that an execution finish.

CompletableFuture<Void> testDataLoaded = new CompletableFuture<>();
vertx
	.executeBlocking(AppTest::loadTestData) // load test data
	.onFailure(t -> {
	  Logger.error(t);
	  testDataLoaded.complete(null);
	})
	.onSuccess(appLoaded::complete);
try {
	// wait, we make it wait because the class can be extended
	// and the extension needs that the verticle has been deployed
	testDataLoaded.get(60, TimeUnit.SECONDS);
} catch (InterruptedException | ExecutionException | TimeoutException e) {
	Logger.error(e);
}