/************************************************************************/
/*                          FLTApplyFilterToLayer                       */
/*                                                                      */
/*      Use the filter encoding node to create mapserver expressions    */
/*      and apply it to the layer.                                      */
/************************************************************************/
int FLTApplyFilterToLayer(FilterEncodingNode *psNode, mapObj *map, 
                          int iLayerIndex, int bOnlySpatialFilter)
{
    layerObj *layer = map->layers + iLayerIndex;

    if ( ! layer->vtable) {
		int rv = 0;

        if (rv = msLayerOpen(layer) != MS_SUCCESS)
            return rv;
    }
    return layer->vtable->LayerApplyFilterToLayer(psNode, map, 
                                                  iLayerIndex, 
                                                  bOnlySpatialFilter);
}