package io.vertx.example.web.chat;
import io.vertx.core.AbstractVerticle;
import io.vertx.core.eventbus.EventBus;
import io.vertx.example.util.Runner;
import io.vertx.ext.web.Router;
import io.vertx.ext.web.handler.StaticHandler;
import io.vertx.ext.web.handler.sockjs.BridgeOptions;
import io.vertx.ext.web.handler.sockjs.PermittedOptions;
import io.vertx.ext.web.handler.sockjs.SockJSHandler;
import java.text.DateFormat;
import java.time.Instant;
import java.util.Date;
/**
* A {@link io.vertx.core.Verticle} which implements a simple, realtime,
* multiuser chat. Anyone can connect to the chat application on port
* 8000 and type messages. The messages will be rebroadcast to all
* connected users via the @{link EventBus} Websocket bridge.
*
* @author <a href="https://github.com/InfoSec812">Deven Phillips</a>
*/
public class Server extends AbstractVerticle {
// Convenience method so you can run it in your IDE
public static void main(String[] args) {
Runner.runExample(Server.class);
}
@Override
public void start() throws Exception {
Router router = Router.router(vertx);
// Allow events for the designated addresses in/out of the event bus bridge
BridgeOptions opts = new BridgeOptions()
.addInboundPermitted(new PermittedOptions().setAddress("chat.to.server"))
.addOutboundPermitted(new PermittedOptions().setAddress("chat.to.client"));
// Create the event bus bridge and add it to the router.
SockJSHandler ebHandler = SockJSHandler.create(vertx).bridge(opts);
router.route("/eventbus/*").handler(ebHandler);
// Create a router endpoint for the static content.
router.route().handler(StaticHandler.create());
// Start the web server and tell it to use the router to handle requests.
vertx.createHttpServer().requestHandler(router::accept).listen(8080);
EventBus eb = vertx.eventBus();
// Register to listen for messages coming IN to the server
eb.consumer("chat.to.server").handler(message -> {
// Create a timestamp string
String timestamp = DateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.MEDIUM).format(Date.from(Instant.now()));
// Send the message back out to all clients with the timestamp prepended.
eb.publish("chat.to.client", timestamp + ": " + message.body());
});
}
}