How to set the mongo db path when using axon-mongo

[Edison Xu]

Hi,

I'm trying to use Mongo db as the repository for events, and through the doc, there's a MongoEventStorageEngine is provided in the module axon-mongo.

Here's my configure class

@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
    Serializer axonJsonSerializer() {
        return new JacksonSerializer();
    }

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

    @Bean(name = "axonMongoTemplate")
    public MongoTemplate axonMongoTemplate() {
        MongoFactory mongoFactory = new MongoFactory();
        mongoFactory.setMongoAddresses(Arrays.asList(new ServerAddress(mongoUrl)));
        MongoClient mongoClient = mongoFactory.createMongo();
        MongoTemplate template = new DefaultMongoTemplate(mongoClient, mongoDbName, eventsCollectionName, snapshotCollectionName);
        return template;
    }

}

It's actually working but in the console, I found there are two mongo connection, one is to the path I provided, and another is trying to connect localhost. 

It seems after introducing this module, Spring will automatically do some initializing work to connect to a mongo db at localhost.

How can I make it avoid connecting localhost? Or can I configure the path to connect for the auto initialization?

Thanks,

[Edison Xu]

Solved.

It turns out that extracting the MongoClient initialization part into a method will solve this.

Clearly, Axon will check the every existence of a Bean returning MongoClient, and it will create a new one from the MongoFactory class with default config -> localhost.

But I didn't find the class doing this work in the axon-mongo module, even in the AxonAutoConfiguration of the axon-spring-boot-autoconfigure module.

在 2017年3月14日星期二 UTC+8下午2:49:46，Edison Xu写道：

[Allard Buijze]

It's not Axon trying to connect to Mongo, but Spring Boot AutoConfiguration, which detects a Mongo library.

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[Edison Xu]

thanks for clearing.

在 2017年3月14日星期二 UTC+8下午4:41:14，Allard Buijze写道：