private ExecutionResult<MessageResponse> validateAndInitialize() {
if (message == null || !(message.body() instanceof JsonObject)) {
LOGGER.error("Invalid message received, either null or body of message is not JsonObject ");
return new ExecutionResult<>(
MessageResponseFactory.createInvalidRequestResponse(),
ExecutionResult.ExecutionStatus.FAILED);
}
userId = ((JsonObject) message.body()).getString(MessageConstants.MSG_USER_ID);
if (!validateUser(userId)) {
LOGGER.error("Invalid user id passed. Not authorized.");
return new ExecutionResult<>(
MessageResponseFactory.createForbiddenResponse(), ExecutionResult.ExecutionStatus.FAILED);
}
prefs = ((JsonObject) message.body()).getJsonObject(MessageConstants.MSG_KEY_PREFS);
request = ((JsonObject) message.body()).getJsonObject(MessageConstants.MSG_HTTP_BODY);
if (prefs == null || prefs.isEmpty()) {
LOGGER.error("Invalid preferences obtained, probably not authorized properly");
return new ExecutionResult<>(
MessageResponseFactory.createForbiddenResponse(), ExecutionResult.ExecutionStatus.FAILED);
}
if (request == null) {
LOGGER.error("Invalid JSON payload on Message Bus");
return new ExecutionResult<>(
MessageResponseFactory.createInvalidRequestResponse(),
ExecutionResult.ExecutionStatus.FAILED);
}
// All is well, continue processing
return new ExecutionResult<>(null, ExecutionResult.ExecutionStatus.CONTINUE_PROCESSING);
}
public void syncResultExample(Vertx vertx) {
EventBus eb = vertx.eventBus();
// Send a message and get the reply synchronously
Message<String> reply = awaitResult(h -> eb.send("someaddress", "ping", h));
System.out.println("Received reply " + reply.body());
}
public void streamExample(Vertx vertx) {
EventBus eb = vertx.eventBus();
HandlerReceiverAdaptor<Message<String>> adaptor = streamAdaptor();
eb.<String>consumer("some-address").handler(adaptor);
// Receive 10 messages from the consumer:
for (int i = 0; i < 10; i++) {
Message<String> received1 = adaptor.receive();
System.out.println("got message: " + received1.body());
}
}
public void handle(Message<JsonObject> msg) {
try {
JsonObject json = msg.body();
String action = msg.headers().get("action");
if (action == null) {
throw new IllegalStateException("action not specified");
}
accessed();
switch (action) {
case "checkin":
{
service.checkin(
(java.lang.String) json.getValue("name"),
json.getValue("lat") == null ? null : (json.getDouble("lat").doubleValue()),
json.getValue("lon") == null ? null : (json.getDouble("lon").doubleValue()),
createHandler(msg));
break;
}
case "getCheckins":
{
service.getCheckins(
res -> {
if (res.failed()) {
msg.fail(-1, res.cause().getMessage());
} else {
msg.reply(
new JsonArray(
res.result()
.stream()
.map(Checkin::toJson)
.collect(Collectors.toList())));
}
});
break;
}
default:
{
throw new IllegalStateException("Invalid action: " + action);
}
}
} catch (Throwable t) {
msg.fail(-1, t.getMessage());
throw t;
}
}
public void fiberHandlerExample(Vertx vertx) {
EventBus eb = vertx.eventBus();
vertx
.createHttpServer()
.requestHandler(
fiberHandler(
req -> {
// Send a message to address and wait for a reply
Message<String> reply = awaitResult(h -> eb.send("some-address", "blah", h));
System.out.println("Got reply: " + reply.body());
// Now end the response
req.response().end("blah");
}))
.listen(8080, "localhost");
}
/**
* Handles an incoming request from the event bus
*
* @param request the request message to be handled
*/
private void handleExecutorEvent(final Message<SlackerRequest> request) {
LOGGER.info("<=<= receiving incoming request <=<=");
LOGGER.debug(request);
// execute the request handling asynchronously
context.runOnContext(
a -> {
final Future<SlackerResponse> future = futureFactory.future();
execute(request.body(), future);
future.setHandler(
handler -> {
if (handler.succeeded()) {
LOGGER.info("=>=> successfully handled request =>=>");
LOGGER.debug(handler.result());
request.reply(
handler.result(),
new DeliveryOptions().setCodecName(SlackerResponseMessageCodec.NAME));
} else {
request.fail(ResultCode.ERROR.ordinal(), handler.cause().getMessage());
LOGGER.error("failed to handle request", handler.cause());
}
});
});
}
public void handle(Message<JsonObject> msg) {
try {
JsonObject json = msg.body();
String action = msg.headers().get("action");
if (action == null) {
throw new IllegalStateException("action not specified");
}
accessed();
switch (action) {
case "m":
{
service.m();
break;
}
default:
{
throw new IllegalStateException("Invalid action: " + action);
}
}
} catch (Throwable t) {
msg.reply(new ServiceException(500, t.getMessage()));
throw t;
}
}
