Token_Entry collection not created in mongodb

Imported from Google Groups
1

Hi,

I’m new to axon framework and trying to make a POC for event replay using springboot and mongoDB. I was able to replay the events successfully but then I can’t find any token_entry collection created in my MongoDB. Could someone help me to take a look. It seems a very simple question, but I just couldn’t find any topic on this. My configuration as below.

application.properties

# mongo
mongodb.url=127.0.0.1
mongodb.port=27017
# mongodb.username=
# mongodb.password=
mongodb.dbname=axon
mongodb.events.collection.name=events
mongodb.events.snapshot.collection.name=snapshots

AxonConfiguration.java

@Configuration
public class AxonConfiguration {

    @Value("${mongodb.url}")
    private String mongoUrl;

    @Value("${mongodb.dbname}")
    private String mongoDbName;

    @Value("${mongodb.events.collection.name}")
    private String eventsCollectionName;

    @Value("${mongodb.events.snapshot.collection.name}")
    private String snapshotCollectionName;
    @Bean
    public Serializer axonJsonSerializer() {
        return new JacksonSerializer();
    }

    @Autowired
    public void configure(EventHandlingConfiguration config) {
        config.registerTrackingProcessor("merchantProcessor"); // default all processors to tracking mode.
    }

    @Bean
    public EventStorageEngine eventStorageEngine(){
        return new MongoEventStorageEngine(axonJsonSerializer(),null, axonMongoTemplate(), new DocumentPerEventStorageStrategy());
    }

    @Bean(name = "axonMongoTemplate")
    public MongoTemplate axonMongoTemplate() {
        MongoTemplate template = new DefaultMongoTemplate(mongoClient(), mongoDbName, eventsCollectionName, snapshotCollectionName);
        return template;
    }

    @Bean
    public MongoClient mongoClient(){
        MongoFactory mongoFactory = new MongoFactory();
        mongoFactory.setMongoAddresses(Arrays.asList(new ServerAddress(mongoUrl)));
        return mongoFactory.createMongo();
    }




Regards,

Bin
2

Hi Bin,

Axon Framework currently doesn’t provide a Mongo TokenStore, so I’d guess that’s why you don’t see any tokens being stored.
There is however a PR open for it, scheduled for Axon 3.1.
If you need it right now, you can take a look there how Joris solves the issue.

Hope this helps!

Cheers,

Steven

3

Hi Steven,

Thanks very much for the information! Could you share the link to Joris’ solution though?

Regards,
Bin

4

That’s the PR Steven referred to:
https://github.com/AxonFramework/AxonFramework/pull/295