Questions tagged [vertx-verticle]
175 questions
0
votes
0 answers
Loading non-thread-safe native lib in Vert.x: are multi-instance verticles confined to their own process
I would like to write a verticle that renders graphs using GraphViz. I would like to do it by loading the native (shared) libs into my JVM and calling it via JNI. Now, GraphViz itself is not thread-safe. It is not enough to run each of the…
Sebastian
- 315
- 2
- 12
0
votes
1 answer
System congestion by verticles
There is an application. It consists of many Verticles. They run one after another in a chain. Each following is a consequence of the successful implementation of the previous one. A lot of them. They make several requests to external systems. The…
maksim2112
- 381
- 7
- 21
0
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1 answer
In Vert.x web will multiple requests be interleaved on the same thread
So I know that in standard vert.x web the request will always be on the same thread even as it goes through async operations, unless you manually spin up a thread. What I'm trying to figure out is if security information can be kept on the thread…
Zipper
- 7,034
- 8
- 49
- 66
0
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3 answers
Vertx multiple event loops
I'm a beginner with Vertx and I'm using this link as the starter code.
However, there is no main file and I don't see how the MainVerticle is deployed. I would like to set some deployment options for the MainVerticle but since there is no main…
user782400
- 1,617
- 7
- 30
- 51
0
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0 answers
Vert.x Future/Promise Handler not called in Groovy
I got a pretty small Verticle that should connect to a database and regularly poll a table and send the objects to the event bus. Thus far I can connect to the database, but the handler afterwards gets not executed and my polling timer does not…
Jazzschmidt
- 989
- 12
- 27
0
votes
1 answer
Difference between standard verticle and worker verticle
I am confused about standard verticle and worker verticle in Vertx.
And What are the use cases of them?
Khanh Lâm
- 57
- 2
- 5
0
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0 answers
"Unexpected exception in route" with POST using Content-Type:application/x-www-form-urlencoded (Content-Type:application/json working fine)
I'm creating a post request that can except "Content-Type:application/x-www-form-urlencoded" using "vert.x". And getting "Unexpected exception in route
java.lang.NullPointerException" but the same request works fine when I remove the content type.
I…
Mohit
- 11
- 6
0
votes
1 answer
Accessing array elements in a vertx JsonObject
Given the following io.vertx.core.json.JsonObject:
{
"111":[
{
"A":"a1",
},
{
"A":"a2",
},
{
"A":"a3",
}
],
"222":[
{
"A":"a10",
},
{
"A":"a20",
},
{
"A":"a30",
}
]
}
As the name of the outer elements which contain…
user1052610
- 4,440
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- 101
0
votes
1 answer
RxJava - retrieving entry in Observable in second flatMapSingle
We have a vertx verticle which receives an id and uses it see if an entity with the id exist in a database. It contains the following logic:
if (itemFound) {
e.onNext(item_which_was_found)
}
else {
e.onNext(null);
}
Another verticle has an…
user1052610
- 4,440
- 13
- 50
- 101
0
votes
1 answer
Working with Vertx JsonArray and RxJava Observables
A vertx JsonObject contains a vertx JsonArray, similar to:
{
"myArray":[
{"id":"1", name:"Yael" },
{"id":"2", name:"Haddasa"}
]
}
What is the correct way to create an RxJava Observable using the array, so that the observable will handle…
user1052610
- 4,440
- 13
- 50
- 101
0
votes
1 answer
Traversing a Vertx JsonArray using RxJava
I have a verticle which consumes incoming messages. Each message will be a vertx JsonObject, which contains a vertx JsonArray. I want to execute logic for each element in this array. The logic itself is contained in a separate verticle. This second…
user1052610
- 4,440
- 13
- 50
- 101
0
votes
1 answer
How do I launch clients on different event loops?
I am creating a testing application that suppose to have many connections to a server. When I create a client from my Verticle it is always processing the connection and messages on the same tread.
When I created my verticle I…
lfmunoz
- 822
- 1
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0
votes
1 answer
Vert.x. How to enable automatic redeploy in a project with multiple modules?
How can we enable auto redeploy for multiple modules when using Vert.x?
For example, if we have a structure like this one:
build.gradle
settings.gradle
main
build.gradle
src/main/java/MainVerticle.java
…
GarouDan
- 3,743
- 9
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- 75
0
votes
1 answer
How to write Vertx worker verticle - indefinite blocking operation?
Following class is my worker verticle in which i want to execute a blocking code on recieving a message from event bus on a channel named events-config.
The objective is to generate and publish json messages indefinitely until i receive stop…
Mozhi
- 757
- 1
- 11
- 28
0
votes
1 answer
Purpose and behaviour of init() in Vertx class
I have the following verticle for testing purposes:
public class UserVerticle extends AbstractVerticle {
private static final Logger log = LoggerFactory.getLogger(UserVerticle.class);
@Override
public void start(Future sf) {
…
mszmurlo
- 1,250
- 1
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