'''Note:''' Warning: Using this, all metadata record's bounding box will be visible to all. Spatial index contains all metadata records (including templates) and the WMS will not take care of filtering bounding box according to privileges.

= How-to browse your GeoNetwork spatial index using WMS in !GeoServer ? =
=== Create a link between spatial index directory to !GeoServer data directory ===
{{{
cd trunk/data/geoserver_data/data
ln -s ../../../web/geonetwork/WEB-INF/lucene/spatial/ spatialindex
}}}

Note: Here maybe there could be lock issue on the Shapefile if both !GeoNetwork and !GeoServer open the file (not tested).
A better option could be to make a copy of the files on a regular basis.

=== Configure !GeoServer to deploy the spatial index Shapefile ===

[[Image(1-datastore.png)]]

[[Image(2-set-shapefile.png)]]

[[Image(3-feature-type.png)]]


==== Really simple SLD style ====

{{{
<?xml version="1.0" encoding="ISO-8859-1"?>
<StyledLayerDescriptor version="1.0.0" xmlns="http://www.opengis.net/sld" xmlns:ogc="http://www.opengis.net/ogc"
  xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://www.opengis.net/sld http://schemas.opengis.net/sld/1.0.0/StyledLayerDescriptor.xsd">
  <NamedLayer>
    <Name>Catalogue bounding box style</Name>
    <UserStyle>
      <Title>Catalogue</Title>
      <Abstract></Abstract>
      <FeatureTypeStyle>
        <Rule>
          <Title>Polygon</Title>
          <PolygonSymbolizer>
            <Stroke>
              <CssParameter name="stroke">#000000</CssParameter>
              <CssParameter name="stroke-width">3</CssParameter>
            </Stroke>
          </PolygonSymbolizer>
          <TextSymbolizer>
            <Label>
              <ogc:PropertyName>id</ogc:PropertyName>
            </Label>
            <Font>
              <CssParameter name="font-family">Times New Roman</CssParameter>
              <CssParameter name="font-style">Normal</CssParameter>
              <CssParameter name="font-size">14</CssParameter>
            </Font>
            <LabelPlacement>
              <PointPlacement>
                <AnchorPoint>
                  <AnchorPointX>0.5</AnchorPointX>
                  <AnchorPointY>0.5</AnchorPointY>
                </AnchorPoint>
              </PointPlacement>
            </LabelPlacement>
          </TextSymbolizer>
        </Rule>

      </FeatureTypeStyle>
    </UserStyle>
  </NamedLayer>
</StyledLayerDescriptor>
}}}

==== Access the WMS using a WMS client (eg. !OpenLayers, !GoogleEarth) ====
==== OpenLayers ====
[[Image(4-openlayers.png)]]


==== !GoogleEarth ====
You could use [http://docs.geoserver.org/1.7.x/en/user/google-earth/index.html GeoServer KML templating system] in order to style your KML. On issue will be that only the metadata record ID (internal !GeoNetwork identifier) is available.


[[Image(4-googleearth.png)]]

KML Demo template:
 * title
{{{
Metadata: ${id.value}
}}}
 * description
{{{
Metadata id: ${id.value}.
<br/>
<br>
<a href="http://localhost:8080/geonetwork/srv/en/metadata.show?id=${id.value}">Metadata</a><br/>
<a href="http://localhost:8080/geonetwork/srv/en/xml.metadata.get?id=${id.value}">Metadata (XML)</a>
}}}
Note: Here the privilege filter is applied by the catalogue.

=== Comments ===
 * Another option at least for KML output (not WMS) is to create a searcher which output KML (Done in geocat.ch sandbox on top of a CSW searcher).
 * In order to retrieve more information from the shapefile using Talend ETL could be an option to create a more complete shapefile with metadata title, change date, ...
See http://www.talendforge.org/wiki/doku.php?id=sdi:geonetworkmetadataextractfields