helloHandler.groovy

def helloHandler = { Message message ->
    def thread = Thread.currentThread()
    println "HelloVerticle.helloHandler: $thread.id"
    
    def name = message.body()
    def now = new SimpleDateFormat().format(new Date())

    def task = new TimerTask() {
        @Override
        void run() {
            println 'Stopping thread'
            if (thread && !thread.interrupted) {
                thread.interrupt()
                message.fail(503, 'Thread interrupted: taking too long')
            }
        }
    }

    println 'Starting timer'
    Timer timer = new Timer()
    timer.schedule(task, 3000) // Here is my timeout! If the process take more than 3s, I don't care for the result anymore

    try {
        def random = new Random().nextInt(10)
        if (random < 2) {
            println 'Doing intense calculation'
            Thread.sleep(65000)
        }
        println 'Cancelling timer'
        timer.cancel()
        timer.purge()
        message.reply("Hello, $name at $now".toString())
    } catch(Exception e) {
        e.printStackTrace()
    }
}