Unit of Meansurement (uom) rendering issue

[wangf1122]

The current UI is not able to handle HNAP uom spec

<gco:Distance uom="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/uom/gmxUom.xml#m">1</gco:Distance>

The ISO13139 standard has no such url as part of the uom part.

 <gco:Distance uom="m">10</gco:Distance>

So wonder why HNAP needs such url and how to make the UI handle such url?

[josegar74]

I've seen both cases. The file gmxUom.xml seems containing kind of codelist https://github.com/geonetwork/core-geonetwork/blob/main/schemas/iso19139/src/main/plugin/iso19139/schema/resources/uom/gmxUom.xml

I don't think HNAP enforces it, at least I don't find that in the specification.

In any case, the code enforcing it is

iso19139.ca.HNAP/src/main/plugin/iso19139.ca.HNAP/update-fixed-info.xsl

Lines 915 to 929 in adcfe95

	<xsl:template match="gco:Distance">
	<xsl:element name="gco:{local-name()}">
	<xsl:apply-templates select="@*"/>
	<xsl:choose>
	<!--Avoid append the url recursively. Only append the url once. -->
	<xsl:when test="not(starts-with(@uom, 'http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/uom/gmxUom.xml#'))">
	<xsl:attribute name="uom">http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/uom/gmxUom.xml#<xsl:value-of select="@uom"/></xsl:attribute>
	</xsl:when>
	<xsl:otherwise>
	<xsl:attribute name="uom"><xsl:value-of select="@uom"/></xsl:attribute>
	</xsl:otherwise>
	</xsl:choose>
	<xsl:apply-templates select="node()"/>
	</xsl:element>
	</xsl:template>

Maybe can be added a variable in the xsl to enforce the URL or use the provided value as it is.

[wangf1122]

@josegar74

Do you mean in the current HNAP schema enforcing logic which is the /update-fixed-info.xsl

We should not append the url to the unit. We should use the unit as is? What I understand it the codelist in HNAP which been pointed is same as what ISO19139 looks like. So I dont see any advantage to add such url in front of the unit like:

"http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/uom/gmxUom.xml#m"
instead of
"m"

I have created a pull request to get this url removed in update-fixed-info

#417 and make it same as how indexing works

iso19139.ca.HNAP/src/main/plugin/iso19139.ca.HNAP/index-fields/index.xsl

Lines 576 to 578 in adcfe95

	<xsl:value-of select="if (contains(@uom, '#'))
	then concat(., ' ', tokenize(@uom, '#')[2])
	else concat(., ' ', @uom)"/>