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| import java.time.Duration; | |
| import java.time.LocalDateTime; | |
| import io.vertx.core.AbstractVerticle; | |
| import io.vertx.core.Future; | |
| import io.vertx.core.Vertx; | |
| import io.vertx.core.http.HttpServer; | |
| import io.vertx.ext.web.Router; | |
| public class HelloVertX { | |
| private static class LongRunningWorker extends AbstractVerticle { | |
| @Override | |
| public void start(Future<Void> startFuture) { | |
| vertx.eventBus().consumer("work", message -> { | |
| LocalDateTime start = LocalDateTime.now(); | |
| System.err.println("Starting to work on the length of " + message.body().toString()); | |
| sleepInSeconds(10); | |
| LocalDateTime end = LocalDateTime.now(); | |
| message.reply("Finish working. URI length " + message.body().toString().length() + " started at " + start + " ended at " + end + " time elpased was: " + Duration.between(start, end)); | |
| }); | |
| } | |
| } | |
| private static class Server extends AbstractVerticle { | |
| @Override | |
| public void start() throws Exception { | |
| HttpServer server = vertx.createHttpServer(); | |
| Router router = Router.router(vertx); | |
| router.route().handler(routingContext -> { | |
| vertx.eventBus().send("work", routingContext.request().absoluteURI(), work -> { | |
| if (work.succeeded()) { | |
| routingContext.response().end(work.result().body().toString()); | |
| } | |
| }); | |
| }); | |
| server.requestHandler(router::accept).listen(8082); | |
| } | |
| } | |
| public static void main(String[] args) throws Exception { | |
| Vertx vertx = Vertx.vertx(); | |
| vertx.deployVerticle(new Server()); | |
| // Launching 2 workers | |
| vertx.deployVerticle(new LongRunningWorker()); | |
| vertx.deployVerticle(new LongRunningWorker()); | |
| } | |
| private static void sleepInSeconds(int seconds) { | |
| try { | |
| Thread.sleep(seconds * 1000); | |
| } catch (InterruptedException e) { | |
| throw new RuntimeException(e); | |
| } | |
| } | |
| } |
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