Support reprojecting geometries in STAC API

[mhogeweg]

Consider implementing a capability to reproject geometries between coordinate reference systems (CRS) when receiving STAC item JSON as well as when returning STAC item JSON.

This would be implemented by configuring a ArcGIS Server Geometry Service in Geoportal Server along with a list of STAC fields that may hold geometry information that needs to be projected.

add to app-context.xml:

<beans:bean id="geoportalContext" class="com.esri.geoportal.context.GeoportalContext">
  <beans:property name="geometryService" value="https://www.example.com/arcgis/rest/services/Utilities/Geometry/GeometryServer" />
  <beans:property name="geometryFields" value="bbox,geometry,properties.geometry_wkt" />
...
</beans:bean>

when set, whenever geometry is ingested/returned, Geoportal will convert between what is submitted/returned and what is stored.

to allow for custom CRS to be included, consider adding to app-context.xml the following section that lists the WKT representation of those CRS:

<beans:bean id="geoportalContext" class="com.esri.geoportal.context.GeoportalContext">
...
  <beans:property name="crsList">
    <beans:list>
      <beans:value>PROJCS["MyCRS",GEOGCS[...]]</beans:value>
      <beans:value>PROJCS["MyOtherCRS",GEOGCS[...]]</beans:value>
    </beans:list>
  </beans:property>
...
</beans:bean>