Trying to implement a SOS for the first time

[Kralidis,Tom [Burlington]]

> 
> -----Original Message-----
> From: UMN MapServer Users List 
> [mailto:MAPSERVER-USERS at LISTS.UMN.EDU] On Behalf Of Hinrich Paulsen
> Sent: Wednesday, September 27, 2006 9:25 AM
> To: MAPSERVER-USERS at LISTS.UMN.EDU
> Subject: [UMN_MAPSERVER-USERS] Trying to implement a SOS for 
> the first time
> 
> Dear List,
> 
> posting to this list for the first time and am promptly 
> rejected by the system. Hopefully it is not an omen. :-) 
> Well, here is my question again.
>  
> 
> Dear List,
> 
> I am in the process of setting up a Sensor Observation 
> Service (SOS) for the first time using a Kubuntu-Linux 
> machine and the following Mapserver:
> 
> MapServer version 4.10.0-beta3 OUTPUT=GIF OUTPUT=PNG 
> OUTPUT=JPEG OUTPUT=WBMP OUTPUT=SVG SUPPORTS=PROJ 
> SUPPORTS=FREETYPE SUPPORTS=WMS_SERVER SUPPORTS=WMS_CLIENT 
> SUPPORTS=WFS_SERVER SUPPORTS=SOS_SERVER INPUT=EPPL7 
> INPUT=POSTGIS INPUT=OGR INPUT=GDAL INPUT=SHAPEFILE 
> 
> My data is sitting in a Postgis table which I can easily 
> access via WMS.
> 
> I have consulted the documentation at:
> http://mapserver.gis.umn.edu/docs/howto/sos_server/
> 
> and when trying out the examples given there the  
> GetCapabilities and  DescribeSensor Requests work fine so far 
> but the GetObservation Request does not.
> 
> My idea of how the GetObservation Request should work is that 
> data in a specific column in my Postgis table is returned 
> when I define it in my SOS server mapfile. Here is a snippet 
> of the mapfile:
> 
> <SNIP>
> 
> LAYER
>   NAME test_sos_layer
>   DUMP TRUE
>   METADATA
>     "sos_procedure"  "SW01UTL001"                             
>                            ## REQUIRED
>     "sos_offering_id" "r_wert"                                
>                                     ## REQUIRED
>     "sos_observedproperty_id" "r_wert"                        
>                             ## REQUIRED
>     "sos_describesensor_url" 
> "http://localhost/temp/SW01UTL001.xml"   ## REQUIRED 
>   END
>   TYPE POINT
>   STATUS ON
> 
>   CONNECTIONTYPE postgis
>   CONNECTION "user=myuser dbname=mydb host=localhost port=5432"
>   DATA "the_geom FROM (SELECT * FROM mytable) AS foo USING 
> UNIQUE gid USING SRID=31467"
> 
>    PROJECTION
>      	'init=epsg:31467'
>    END
> 
>  CLASS
>     NAME 'r_wert'
>        STYLE
>         SYMBOL 'circle'
>         SIZE 5
>         COLOR 255 100 50
>         OUTLINECOLOR 0 0 0
>       END
>  END
> END
> 
> </SNIP>
> 
> When I send this there is no error but all I get back is this:
> <om:ObservationCollection gml:id="r_wert" 
> xsi:schemaLocation="http://www.opengeospatial.net/om 
> http://schemas.opengis.net/om.xsd"/>
> 
> Where am I going wrong? Any help on pointing me in the right 
> direction is highly appreciated!
> 

Weird.  What's your GetObservation request URL?

Also, you can test to see if this is even working via WMS or WFS as
sanity check against the data connection, or even a mapserv CGI request.

Let us know what your results are.

..Tom