presto-orc/src/main/java/io/prestosql/orc/AbstractOrcDataSource.java/AbstractOrcDataSource/toString
class AbstractOrcDataSource:        @Override
        public String toString()
        {
            return toStringHelper(this)
                    .add("orcDataSourceId", getOrcDataSourceId())
                    .add("diskRange", diskRange)
                    .add("maxBufferSize", getMaxBufferSize())
                    .toString();
        }