WFS Data downloader

Date	2012/09/17
Contact(s)	François Prunayre
Last edited
Status	Done
Assigned to release	2.9.0
Resources	Available (supported by Geonovum)
Ticket #	#1072
Github source	​https://github.com/fxprunayre/core-geonetwork/tree/feature/download-wfs

1. Proposal
   1. Widget configuration
   2. How to link WFS service to a metadata record ?
   3. Proposal Type
   4. Voting history
2. Risks
3. Participants

Proposal

The WFS data downloader component is a simple widget which helps user downloading data from a WFS service. A form is displayed in order to select:

• a service (usually referenced in a metadata record)
• a layer (aka. feature type) (which may be referenced in a metadata record)
• an output format
• a projection
• an area of interest (a bounding box)

Widget configuration

The service and layer can be used to initialize the component.

If the service is not available, a warning is displayed. If the layer is not published in the service, a warning is displayed.

A "download data" button is added to the view mode of the metadata when a WFS is registered in the current record.

The area of interest could be the linked map extent or a map control added to draw the extraction area.

How to link WFS service to a metadata record ?

The link to the WFS service is made from the distribution section adding an online resourcce element:

<gmd:onLine>
  <gmd:CI_OnlineResource>
    <gmd:linkage>
      <gmd:URL>http://wfs.service.url</gmd:URL>
    </gmd:linkage>
    <gmd:protocol>
      <gco:CharacterString>OGC:WFS</gco:CharacterString>
    </gmd:protocol>
    <gmd:name>
      <gco:CharacterString>featureType (optional)</gco:CharacterString>
    </gmd:name>
  </gmd:CI_OnlineResource>
</gmd:onLine>

If no name is provided, the WFS widget list all service feature types.

Proposal Type

• Type: Widget
• App: GeoNetwork
• Module: Client app

Voting history

Vote proposed by Francois on 2012/10/10, result was

• +1 Patrizia, Jeroen, Francois

Risks

• None.

Participants

• Francois Prunayre