I have a bit of a problem with WPS(1.0) chaining on GeoServer (2.9.1.).
I am following this tutorial for
http://geoserver.geo-solutions.it/edu/en/wps/chaining_processes.html
Chain 1: Extract the rivers into the “restricted areas” polygons
Problem is in the third step, when I am choosing SUBPROCESS of gs:CollectGeometries, input XML looks empty
<?xml version="1.0" encoding="UTF-8"?><wps:Execute version="1.0.0"service="WPS" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.opengis.net/wps/1.0.0" xmlns:wfs="http://www.opengis.net/wfs" xmlns:wps="http://www.opengis.net/wps/1.0.0" xmlns:ows="http://www.opengis.net/ows/1.1" xmlns:gml="http://www.opengis.net/gml" xmlns:ogc="http://www.opengis.net/ogc" xmlns:wcs="http://www.opengis.net/wcs/1.1.1" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="http://www.opengis.net/wps/1.0.0 http://schemas.opengis.net/wps/1.0.0/wpsAll.xsd">
<ows:Identifier/>
<wps:DataInputs/>
<wps:ResponseForm/>
</wps:Execute>
It has no input at all, and execute of the process will end up with ErrorMessage
"Failed to parse process inputs"
It happens not only with this example, but with all the chaining
This is the whole XML from process inputs/outputs
<?xml version="1.0" encoding="UTF-8"?><wps:Execute version="1.0.0" service="WPS" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.opengis.net/wps/1.0.0" xmlns:wfs="http://www.opengis.net/wfs" xmlns:wps="http://www.opengis.net/wps/1.0.0" xmlns:ows="http://www.opengis.net/ows/1.1" xmlns:gml="http://www.opengis.net/gml" xmlns:ogc="http://www.opengis.net/ogc" xmlns:wcs="http://www.opengis.net/wcs/1.1.1" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="http://www.opengis.net/wps/1.0.0 http://schemas.opengis.net/wps/1.0.0/wpsAll.xsd">
<ows:Identifier>gs:Clip</ows:Identifier>
<wps:DataInputs>
<wps:Input>
<ows:Identifier>features</ows:Identifier>
<wps:Reference mimeType="text/xml" xlink:href="http://geoserver/wfs" method="POST">
<wps:Body>
<wfs:GetFeature service="WFS" version="1.0.0" outputFormat="GML2" xmlns:sf="http://www.openplans.org/spearfish">
<wfs:Query typeName="sf:streams"/>
</wfs:GetFeature>
</wps:Body>
</wps:Reference>
</wps:Input>
<wps:Input>
<ows:Identifier>clip</ows:Identifier>
<wps:Reference mimeType="text/xml; subtype=gml/3.1.1" xlink:href="http://geoserver/wps" method="POST">
<wps:Body>
<wps:Execute version="1.0.0" service="WPS">
<ows:Identifier/>
<wps:DataInputs/>
<wps:ResponseForm/>
</wps:Execute>
</wps:Body>
</wps:Reference>
</wps:Input>
</wps:DataInputs>
<wps:ResponseForm>
<wps:RawDataOutput mimeType="text/xml; subtype=wfs-collection/1.0">
<ows:Identifier>result</ows:Identifier>
</wps:RawDataOutput>
</wps:ResponseForm>
</wps:Execute>
