tdcommon/src/main/java/thredds/server/catalog/builder/DatasetScanConfigBuilder.java
protected Optional<Boolean> readFilesSort(Element sorterElem) {
    String increasingString = sorterElem.getAttributeValue("increasing");
    if (increasingString != null) {
      if (increasingString.equalsIgnoreCase("true"))
        return Optional.of(true);
      else if (increasingString.equalsIgnoreCase("false"))
        return Optional.of(false);
    }
    return Optional.empty();
  }
protected Optional<Boolean> readFilesSort(Element sorterElem) {
    String increasingString = sorterElem.getAttributeValue("increasing");
    if (increasingString != null) {
      if (increasingString.equalsIgnoreCase("true"))
        return Optional.of(true);
      else if (increasingString.equalsIgnoreCase("false"))
        return Optional.of(false);
    }
    return Optional.empty();
  }
/*
<xsd:element name="sort">
<xsd:complexType>
<xsd:choice>
<xsd:element name="lexigraphicByName">
<xsd:complexType>
<xsd:attribute name="increasing" type="xsd:boolean"/>
</xsd:complexType>
</xsd:element>
<xsd:element name="crawlableDatasetSorterImpl" minOccurs="0" type="UserImplType"/>
</xsd:choice>
</xsd:complexType>
</xsd:element>