presto-mongodb/src/main/java/io/prestosql/plugin/mongodb/MongoConnector.java/MongoConnector/MongoConnector
class MongoConnector:    @Inject
    public MongoConnector(
            MongoSession mongoSession,
            MongoSplitManager splitManager,
            MongoPageSourceProvider pageSourceProvider,
            MongoPageSinkProvider pageSinkProvider)
    {
        this.mongoSession = mongoSession;
        this.splitManager = requireNonNull(splitManager, "splitManager is null");
        this.pageSourceProvider = requireNonNull(pageSourceProvider, "pageSourceProvider is null");
        this.pageSinkProvider = requireNonNull(pageSinkProvider, "pageSinkProvider is null");
    }