presto-mongodb/src/main/java/io/prestosql/plugin/mongodb/MongoSplitManager.java/MongoSplitManager/MongoSplitManager
class MongoSplitManager:    @Inject
    public MongoSplitManager(MongoClientConfig config)
    {
        this.addresses = config.getSeeds().stream()
                .map(s -> fromParts(s.getHost(), s.getPort()))
                .collect(toList());
    }