Editing metadata related resources

Date	2013-01-02
Contact(s)	Francois Prunayre
Status	Being discussed, in progress, initial implementation in progress
Assigned to release	2.9.x
Resources	Available (funding Ifremer)
Ticket #	#XYZ
Github dev branch	​https://github.com/fxprunayre/core-geonetwork/tree/improvement/relations

Overview

This proposal aims to improve the way a resource is linked to a metadata in editing mode. Indeed, GeoNetwork provides multiples ways of adding link to external or internal resources in different places of the editor. We could list:

• in the editor using the binocular to search for a record to link (eg. parentIdentifier, sources, featureCatalog, operatesOn, aggregates)
• file upload for thumbnail or online sources
• custom UI for service/dataset link

This proposal provide a main component to view, add or remove the related resources.

A related resource could be:

• A thumbnail (URL or file to upload)
• A parent metadata record (UUID to the metadata)
• A service metadata record
• A dataset metadata record
• A online source (URL or file to upload)
• A feature catalog (UUID to the metadata in ISO19110 format)
• A sibling (See ​http://trac.osgeo.org/geonetwork/wiki/MetadataSiblings)

This component is only available for ISO19139 records (or ISO19139 profiles) but when related resources are metadata records, those records could be in any of the catalog supported standards (eg. ISO19110 for feature catalog).

Proposal Type

• Type: GUI Change
• App: GeoNetwork
• Module: Widgets

Links

• Documents:

Voting History

• Vote not yet proposed.

Motivations

Make relation management easier.

Proposal

This related resource panel rely on:

• the relation services (to retrieve current relation for a record)
• XSL processing to add or remove a relation

Add a thumbnail

Two types of thumbnails could be linked to a metadata record:

• an image linked using its URL (the image needs to be published online)
• an image uploaded in the record data directory. After upload a small thumbnail could be created if requested.

The thumbnail upload form provide a simple way to add thumbnails:

The relation panel allows to quickly remove a thumbnail.

When the image is uploaded, the XML snippet corresponding to the image is the following:

<gmd:graphicOverview>
	<gmd:MD_BrowseGraphic>
		<gmd:fileName>
			<gco:CharacterString>http://www.cyber-heritage.co.uk/maps/map3.jpg</gco:CharacterString>
		</gmd:fileName>
	</gmd:MD_BrowseGraphic>
</gmd:graphicOverview>
<gmd:graphicOverview xmlns:srv="http://www.isotc211.org/2005/srv">
	<gmd:MD_BrowseGraphic>
		<gmd:fileName>
			<gco:CharacterString>http://localhost:8080/geonetwork/srv/eng/resources.get?uuid=7e512c38-f916-43ba-8367-85f17dcadca1&amp;fname=thumbnail.jpg</gco:CharacterString>
		</gmd:fileName>
		<gmd:fileDescription>
			<gco:CharacterString>large_thumbnail</gco:CharacterString>
		</gmd:fileDescription>
		<gmd:fileType>
			<gco:CharacterString>jpg</gco:CharacterString>
		</gmd:fileType>
	</gmd:MD_BrowseGraphic>
</gmd:graphicOverview>

When linking using a URL, the following XML snippet is inserted

<gmd:graphicOverview>
	<gmd:MD_BrowseGraphic>
		<gmd:fileName>
			<gco:CharacterString>http://organization.org/images/thumbnail.jpg</gco:CharacterString>
		</gmd:fileName>
	</gmd:MD_BrowseGraphic>
</gmd:graphicOverview>

In both cases, the information could be improved or updated using the editor from the advanced view > identification section.

Add an online source

Add a dataset to a metadata about a service

Add a service to a metadata about a dataset

Add a parent metadata record

Add a sibling

Backwards Compatibility Issues

None.

New libraries added

None.

Risks

Everything involves some element of risk....

Participants

• Francois Prunayre
• Ifremer
• Camptocamp
• Others?