Schema plugin / SeaDataNet CDI metadata profile

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SeaDataNet CDI metadata profile

The aim is to produce a pluggable profile for SDN-CDI metadata profile which is an extension of ISO19139. The plugin will be supported by GeoNetwork 2.9 or above.

• Cf : ​http://www.seadatanet.org/Data-Access/Common-Data-Index-CDI
• Cf : ​http://www.seadatanet.org/Standards-Software/Metadata-formats

This new profile is identified as iso19139.sdn-cdi.

Schema detection is based on the presence of the following element in a record:

<gmd:metadataStandardName>
    <gco:CharacterString>ISO 19115/SeaDataNet profile</gco:CharacterString>
</gmd:metadataStandardName>

If this fragment is found, the record is attached to the iso19139.sdn-cdi profile (if deployed in the catalogue instance).

Labels from the schema specification are used to make a localization file for the English language for all element from the SDN namespace.

Some elements of the CDI require integration with indexing and view/edit features.

Task:

• create CDI SDN profile
• publish the profile in GeoNetwork schema repository on Github (​https://github.com/geonetwork/schema-plugins)

Keywords

gmd:keywords may contains :

<gmd:keyword>
   <sdn:SDN_ParameterDiscoveryCode codeSpace="SeaDataNet" codeListValue="ATVS"
      codeList="http://vocab.nerc.ac.uk/isoCodelists/sdnCodelists/cdicsrCodeList.xml#SDN_ParameterDiscoveryCode">Atmospheric visibility and transparency</sdn:SDN_ParameterDiscoveryCode>
   or
   <sdn:SDN_PlatformCategoryCode...
   or
   <sdn:SDN_EDMERPCode...
</gmd:keyword>

Tasks:

• Indexing: Those elements will be indexed as keywords.
• Editing: They will not be fully supported in edit mode (ie. the element attribute will not be editable)

Point and curve in bounding polygon

Spatial indexing: Curve or point will not be supported in the shapefile index due to a mix of geometry. In editing mode the geometry will be displayed but could not be edited.

Tasks:

• Check that it does not break indexing of the record

isoType attribute

SDN CDI record use

<sdn:SDN_DataIdentification gco:isoType="MD_DataIdentification_Type">

GeoNetwork support

<sdn:SDN_DataIdentification gco:isoType="gco:MD_DataIdentification">

Task:

• Add support for both case in iso19139 schema in GeoNetwork (#1263).

Schematron validation

No schematron is made for custom profile rules. Example: metadata identifier "Free text -> urn as defined in RFC 1737 and starting with the string “urn:SDN:CDI:“

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master commit ebab4449d4db20ee2cfa940ea96e91edbbccd2e3

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Available in schema plugin repository ​https://github.com/geonetwork/schema-plugins/tree/master/iso19139.sdn-cdi