@Override
public void start(Future<Void> fut) {
// Demo html for now
String html =
"<link rel=\"stylesheet\" href=\"https://goo.gl/fUS2lx\">'\n"
+ " + '<h1 style=\"color:navy;position:relative;top:50%;transform:translateY(-50%);\"'\n"
+ " + 'align=\"center\" class=\"animated infinite rubberBand\">Hello Chatty</h1>";
Router router = Router.router(vertx);
router
.route("/")
.handler(
routingContext -> {
HttpServerResponse response = routingContext.response();
response.putHeader("content-type", "text/html").end(html);
});
vertx
.createHttpServer()
.requestHandler(router::accept)
.listen(
8080,
result -> {
if (result.succeeded()) {
fut.complete();
System.out.println("Successfull deployed server at port 8080");
} else {
fut.fail(result.cause());
}
});
}
@Override
public JDBCClient getConnection(Handler<AsyncResult<SQLConnection>> handler) {
Context ctx = vertx.getOrCreateContext();
exec.execute(
() -> {
Future<SQLConnection> res = Future.future();
try {
/*
This can block until a connection is free.
We don't want to do that while running on a worker as we can enter a deadlock situation as the worker
might have obtained a connection, and won't release it until it is run again
There is a general principle here:
*User code* should be executed on a worker and can potentially block, it's up to the *user* to deal with
deadlocks that might occur there.
If the *service code* internally blocks waiting for a resource that might be obtained by *user code*, then
this can cause deadlock, so the service should ensure it never does this, by executing such code
(e.g. getConnection) on a different thread to the worker pool.
We don't want to use the vert.x internal pool for this as the threads might end up all blocked preventing
other important operations from occurring (e.g. async file access)
*/
Connection conn = ds.getConnection();
SQLConnection sconn = new JDBCConnectionImpl(vertx, conn);
res.complete(sconn);
} catch (SQLException e) {
res.fail(e);
}
ctx.runOnContext(v -> res.setHandler(handler));
});
return this;
}
private static Handler<AsyncResult<HttpServer>> futureTreatment(Future<Void> fut) {
return result -> {
if (result.succeeded()) {
System.out.println("You can work on : http://localhost:8989/");
fut.complete();
} else {
fut.fail(result.cause());
}
};
}
private void checkAndSetStatus(AsyncResult<String> result, Future<Void> start) {
ctr--;
if (result.failed()) {
start.fail(result.cause());
failed = true;
printError(result.cause());
} else if (ctr == 0) {
start.complete();
}
}
@Override
public void start(Future<Void> startFuture) throws Exception {
Router router = Router.router(vertx);
router.route().handler(BodyHandler.create());
router.get("/info").handler(this::checkMemory);
vertx
.createHttpServer()
.requestHandler(router::accept)
.listen(
8888,
result -> {
if (result.succeeded()) {
startFuture.complete();
} else {
startFuture.fail(result.cause());
}
});
}
/**
* Start the deployer.
*
* @param startFuture
*/
@Override
public void start(final Future<Void> startFuture) {
// load the deployer.json when available
JsonObject configuration = this.loadConfiguration();
if (configuration != null) {
deployed = new JsonArray();
// assign loopback to this handler
vertx.eventBus().localConsumer(LOOPBACK, this::deployVerticle);
// copy the current verticle configuration
workingCopy = configuration.getJsonObject(VERTICLES, new JsonObject()).copy();
// set the global configuration
globalConfig = configuration.getJsonObject(CONFIG, new JsonObject());
// start iterations
vertx
.eventBus()
.send(
LOOPBACK,
null,
(AsyncResult<Message<Boolean>> event) -> {
if (event.succeeded() && event.result().body()) {
LOG.log(
Level.INFO,
"Deployed {0} Verticles: {1}",
new Object[] {this.deployed.size(), deployed});
startFuture.complete();
} else {
LOG.log(Level.SEVERE, "Deployment stopped: {0}", event.cause().getMessage());
startFuture.fail(event.cause());
}
});
} else {
LOG.info("No deployer.json found on the classpath.");
}
}
public Future<JsonObject> load(Object field) {
Future<JsonObject> configFuture;
if (field != null) {
if (field instanceof String) {
configFuture = getOrLoadConfig((String) field);
} else if (field instanceof JsonObject) {
configFuture = Future.future();
configFuture.complete((JsonObject) field);
} else {
configFuture = Future.future();
configFuture.fail(
new IllegalStateException(
"Field `config` must contain an object or a string (path to the JSON config file)"));
}
} else {
configFuture = Future.future();
configFuture.complete(new JsonObject());
}
return configFuture;
}
@Override
public void start(Future<Void> future) throws Exception {
StompClient.create(vertx)
.connect(
ar -> {
if (ar.failed()) {
future.fail(ar.cause());
return;
}
final StompClientConnection connection = ar.result();
connection
.receivedFrameHandler(frame -> System.out.println("Client receiving:\n" + frame))
.writingFrameHandler(frame -> System.out.println("Client sending:\n" + frame))
.subscribe(
"/queue",
FRAMES::add,
frame -> {
if (!future.isComplete()) {
future.complete();
}
});
});
}
/**
* Fails the startup of this executor with the given failure reason
*
* @param startFuture the start future to be canceled
* @param errorMessage the error/failure message
*/
private void failStart(final Future<Void> startFuture, final String errorMessage) {
final String reason =
String.format("unable to register '%s' executor: %s", identifier(), errorMessage);
LOGGER.error(reason);
startFuture.fail(reason);
}
