presto-phoenix/src/main/java/io/prestosql/plugin/phoenix/PhoenixPlugin.java/PhoenixPlugin/getConnectorFactories
class PhoenixPlugin:    @Override
    public Iterable<ConnectorFactory> getConnectorFactories()
    {
        return ImmutableList.of(new PhoenixConnectorFactory(PhoenixPlugin.class.getClassLoader()));
    }