[Geoserver-users] GeoPackage - WPS request

GeoServer GeoServer User
1

Hello list,
I am trying to create a geopackage using the wps extension and the geopackage community extension (2.8.1).
What I want to do is just to pack one vector layer and one raster layer (out of the geoserver-box: spearfish roads and spearfish dem) into a geopackage file.

I am using the WPS request builder on gs:GeoPackage with this input:

Strassen Spearfish sf:roads describe the layer EPSG:26713 589980 4913700 609000 4928010 sf:sfdem default

I left out all the optional parameters, just kept the mandatory ones.
What I got back is this:

<wps:ExecuteResponse xml:lang=“en” service=“WPS” serviceInstance=“http://localhost:8080/geoserver/ows?” version=“1.0.0”>
<wps:Process wps:processVersion=“1.0.0”>
ows:Identifiergs:GeoPackage</ows:Identifier>
ows:TitleGeoPackage</ows:Title>
ows:AbstractGeopackage Process</ows:Abstract>
</wps:Process>
<wps:Status creationTime=“2016-01-12T12:35:41.929Z”>wps:ProcessFailed
<ows:ExceptionReport version=“1.1.0”>
<ows:Exception exceptionCode=“NoApplicableCode”>
ows:ExceptionTextFailed to retrieve value for input contents
Cannot convert {features={identifier=L01, featuretype=sf:roads,
name=sfRoads, description=Strassen Spearfish}, tiles={identifier=L02,
srs=EPSG:26713, bbox={miny=4913700, minx=589980, maxy=4928010, maxx=609000},
name=sfDEM, layers=sf:sfdem, description=describe the layer, styles=default},
name=mygeopackage} into a GeoPackageProcessRequest object</ows:ExceptionText>
</ows:Exception>
</ows:ExceptionReport>
</wps:ProcessFailed>
</wps:Status>
</wps:ExecuteResponse>

Has anyone any ideas on that or experience with this community extension?
THX, Niko

Nikolaus Pruzsinszky
Referent Geoinformationssysteme
Institut für militärisches Geowesen
Führungsunterstützungszentrum
Stiftgasse 2a
1070 Wien
mailto:nikolaus.pruzsinszky@anonymised.com
+43 50201 1033134

2

Hi Nikolaus

There appears to be a bug in the WPS request builder.

The XML code for the "contents" parameter needs to be surrounded by a CDATA tag:

<![CDATA[ ... ]]>

so that it does not get parsed as part of the request XML itself.

The request builder does not seem to automatically do this for the geopackage process. However, if you add this manually in your text box, this will trigger the request builder to add a second CDATA tag, which also fails.

So the only solution is to edit and send the request manually.

Hope this helps.

Kind Regards
Niels

On 12-01-16 14:34, Nikolaus Pruzsinszky wrote:

Hello list,
I am trying to create a geopackage using the wps extension and the geopackage community extension (2.8.1).
What I want to do is just to pack one vector layer and one raster layer (out of the geoserver-box: spearfish roads and spearfish dem) into a geopackage file.

I am using the WPS request builder on gs:GeoPackage with this input:

   <geopackage name="mygeopackage" xmlns="http://www.opengis.net/gpkg&quot;&gt;
   <features name="sfRoads" identifier="L01">
       <description>Strassen Spearfish</description>
       <featuretype>sf:roads</featuretype>
   </features>
   <tiles name="sfDEM" identifier="L02">
       <description>describe the layer</description>
       <srs>EPSG:26713</srs>
       <bbox>
               <minx>589980</minx>
               <miny>4913700</miny>
               <maxx>609000</maxx>
               <maxy>4928010</maxy>
       </bbox>
       <layers>sf:sfdem</layers>
       <styles>default</styles>
   </tiles>
   </geopackage>
I left out all the optional parameters, just kept the mandatory ones.
What I got back is this:

<wps:ExecuteResponse xml:lang="en" service="WPS" serviceInstance="http://localhost:8080/geoserver/ows?&quot; version="1.0.0">
<wps:Process wps:processVersion="1.0.0">
   <ows:Identifier>gs:GeoPackage</ows:Identifier>
   <ows:Title>GeoPackage</ows:Title>
   <ows:Abstract>Geopackage Process</ows:Abstract>
</wps:Process>
<wps:Status creationTime="2016-01-12T12:35:41.929Z"><wps:ProcessFailed>
<ows:ExceptionReport version="1.1.0">
<ows:Exception exceptionCode="NoApplicableCode">
<ows:ExceptionText>Failed to retrieve value for input contents
Cannot convert {features={identifier=L01, featuretype=sf:roads,
name=sfRoads, description=Strassen Spearfish}, tiles={identifier=L02,
srs=EPSG:26713, bbox={miny=4913700, minx=589980, maxy=4928010, maxx=609000},
name=sfDEM, layers=sf:sfdem, description=describe the layer, styles=default},
name=mygeopackage} into a GeoPackageProcessRequest object</ows:ExceptionText>
</ows:Exception>
</ows:ExceptionReport>
</wps:ProcessFailed>
</wps:Status>
</wps:ExecuteResponse>

Has anyone any ideas on that or experience with this community extension?
THX, Niko
--
Nikolaus Pruzsinszky
Referent Geoinformationssysteme
Institut für militärisches Geowesen
Führungsunterstützungszentrum
Stiftgasse 2a
1070 Wien
mailto:nikolaus.pruzsinszky@anonymised.com
+43 50201 1033134

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