Hi there,
*TL;DR*
- Using Geotools 18.1
- GetCapabilities: ows:Parameter "outputFormat" and "srsName" could not
be found within ows:Operation (because it is allowed to place them next to
ows:Operation)
- Simple maven project attachedI try to use a public WFS service in version 2.0.0 and have problems while simply retrieving some features. The java code below leads to an exception "java.lang.IllegalArgumentException: Client does not support any of the server supported output formats for DESCRIBE_FEATURETYPE". I tracked it down to a new (WFS 2.0.0) optional structure in the GetCapabilities document, by which it is possible to locate the ows:Parameters next to ows:Operation instead of a nested element within the ows:Operation. (OpenGIS Web Feature Service 2.0 Interface Standard (also ISO 19142) - http://portal.opengeospatial.org/files/?artifact_id=39967 or http://www.opengeospatial.org/standards/wfs ) chapter 8.3.5.1 page 49 ). Calling the service with version=2.0.0 (in code [1]) it delivers a valid GetCapabilities document with this optional format, which leads to the mentioned exception above, because the "outputFormat" and later the "srsName" couldn't be found at the expected position, see XML snippet below. Did I miss any tweaks or options to make it work or is this a known issue I have to treat? ----JAVA--------------------------------- public class WfsTestApp { public static void main(String[] args) throws Exception { String getCapabilities = "http://isk.geobasis-bb.de/ows/dog_lgb200_bebb_v3?SERVICE=WFS&REQUEST=GetCapabilities&ACCEPTVERSIONS=";; getCapabilities += "2.0.0"; // [1] // getCapabilities += "1.1.0"; // [2] DataStore data = DataStoreFinder.getDataStore(Collections.singletonMap("WFSDataStoreFactory:GET_CAPABILITIES_URL", getCapabilities)); String typeName = "dog:Strassen"; Query q = new Query(typeName); q.setMaxFeatures(5); SimpleFeatureCollection features = data.getFeatureSource(typeName).getFeatures(q); System.out.println("Size: " + features.size()); // expected 5 but was 51331 ... anyway! [4] try (SimpleFeatureIterator iter = features.features()) { while (iter.hasNext()) { System.out.println(iter.next()); } } } } ----JAVA--------------------------------- ----XML--------------------------------- <WFS_Capabilities version="2.0.0" xmlns="http://www.opengis.net/wfs/2.0"; xmlns:ows="http://www.opengis.net/ows/1.1"; > <!-- ... --> <ows:OperationsMetadata> <ows:Operation name="GetCapabilities"><!-- ... --></ows:Operation> <ows:Operation name="DescribeFeatureType"> <ows:DCP><!-- ... --></ows:DCP> <!-- the current implementation is looking here for the parameter *outputFormat* and does not fall back to "globally" defined parameters --> </ows:Operation> <ows:Operation name="GetFeature"> <ows:DCP><!-- ... --></ows:DCP> <!-- the current implementation is looking here for the parameters *outputFormat* and *srsName* --> </ows:Operation> <ows:Parameter name="version"> <ows:AllowedValues> <ows:Value>2.0.0</ows:Value> <ows:Value>1.1.0</ows:Value> </ows:AllowedValues> </ows:Parameter> <ows:Parameter name="srsName"> <!-- "globally" defined --> <ows:AllowedValues> <ows:Value>urn:ogc:def:crs:EPSG::4326</ows:Value> <!-- ... --> </ows:AllowedValues> </ows:Parameter> <ows:Parameter name="outputFormat"> <!-- "globally" defined --> <ows:AllowedValues> <ows:Value>text/xml; subtype=gml/3.2.1</ows:Value> <ows:Value>text/xml; subtype="gml/3.2.1"</ows:Value> <!-- ... --> </ows:AllowedValues> </ows:Parameter> <!-- ... --> </ows:OperationsMetadata> <!-- ... --> </WFS_Capabilities> ----XML--------------------------------- Using version 1.1.0 as workaround is not an option because I want to use a server-side function called "normalize" to generate the second input parameter for the PropertyIsLike filter. For a quick replay of these issue, I attached a small maven project (7zip archive; zip: https://ufile.io/jrof4 ). I use Geotools 18.1, Java 8 and Maven 3.3.3. I hope somebody can help me make it work. Thanks in advance. Yours sincerely. M.Sc. Robin Pradel Senior Software Engineer IVU Traffic Technologies AG Bundesallee 88, D-12161 Berlin http://www.ivu.de
geotools-wfs2-test.7z
Description: geotools-wfs2-test.7z
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