Hi Christian,
Sorry for the trouble with this. In GeoMesa, we are using the
ContentDataStore API, and maybe we've missed something in our
implementation. Emilio pointed out the bit of code that is doing the
thing.
We tossed in a GeoMesa ticket here to track this:
https://geomesa.atlassian.net/browse/GEOMESA-2570.
Cheers,
Jim
1.
https://github.com/locationtech/geomesa/blob/geomesa_2.11-2.2.1/geomesa-fs/geomesa-fs-datastore/src/main/scala/org/locationtech/geomesa/fs/FileSystemDataStore.scala#L44
On 2/27/19 10:11 AM, [email protected] wrote:
Hi,
Just ran into an issue with GeoServer's WFS service serving WFS 2.0.0
as GML 3.2 from data stored as parquet files in a GeoMesa Filesystem
(S3) data store. More precisely I'm trying to visualize those data in
QGIS using a WFS layer. With this setup QGIS is unable to render these
data. It complains about an "unbound prefix in line 1, column 726" in
the WFS GetFeature response. Having a deeper look into the response
from GeoServer reveals that the XML namespace of my feature's (i.e.
ModemState) elements is null where it should have been "vehicle-events":
<?xml version="1.0" encoding="UTF-8"?>
<wfs:FeatureCollection xmlns:xs="http://www.w3.org/2001/XMLSchema";
xmlns:wfs="http://www.opengis.net/wfs/2.0";
xmlns:gml="http://www.opengis.net/gml/3.2";
xmlns:vehicle-events="urn:athena:vcc:crowd:vehicle-events"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
next="https://develop.vcc.otonomousmobility.com/atvcrwd-geoserver/vehicle-events/wfs?REQUEST=GetFeature&BBOX=48.67796064700979%2C8.97443411395199%2C48.67995793698221%2C8.980798400236115%2Curn%3Aogc%3Adef%3Acrs%3AEPSG%3A%3A4326&SRSNAME=urn%3Aogc%3Adef%3Acrs%3AEPSG%3A%3A4326&VERSION=2.0.0&TYPENAMES=vehicle-events%3AModemState&SERVICE=WFS&COUNT=10&STARTINDEX=10";
numberMatched="3054" numberReturned="10"
timeStamp="2019-02-27T14:40:11.234Z"
xsi:schemaLocation="http://www.opengis.net/wfs/2.0
https://develop.vcc.otonomousmobility.com/atvcrwd-geoserver/schemas/wfs/2.0/wfs.xsd
http://www.opengis.net/gml/3.2
https://develop.vcc.otonomousmobility.com/atvcrwd-geoserver/schemas/gml/3.2.1/gml.xsd
urn:athena:vcc:crowd:vehicle-events
https://develop.vcc.otonomousmobility.com/atvcrwd-geoserver/vehicle-events/wfs?service=WFS&version=2.0.0&request=DescribeFeatureType&typeName=vehicle-events%3AModemState
<http://www.opengis.net/wfs/2.0%20https:/develop.vcc.otonomousmobility.com/atvcrwd-geoserver/schemas/wfs/2.0/wfs.xsd%20http:/www.opengis.net/gml/3.2%20https:/develop.vcc.otonomousmobility.com/atvcrwd-geoserver/schemas/gml/3.2.1/gml.xsd%20urn:athena:vcc:crowd:vehicle-events%20https:/develop.vcc.otonomousmobility.com/atvcrwd-geoserver/vehicle-events/wfs?service=WFS&version=2.0.0&request=DescribeFeatureType&typeName=vehicle-events%3AModemState>">
<wfs:member>
<null:ModemState gml:id="006ff4c8-7c65-4d2f-89df-4d7fa9afa2ea">
<timestamp>120708750</timestamp>
<apn>Context 1 </apn>
<basebandModuleFirmwareVersion>20.00.402</basebandModuleFirmwareVersion>
<cellId>160081A</cellId>
...
<dtg>2018-11-12T09:12:48.014Z</dtg>
<geom>
<gml:Point srsName="urn:ogc:def:crs:EPSG::4326" srsDimension="2"
gml:id="006ff4c8-7c65-4d2f-89df-4d7fa9afa2ea.geom">
<gml:pos>48.67940694 8.97704929</gml:pos>
</gml:Point>
</geom>
</null:ModemState>
</wfs:member>
...
</wfs:FeatureCollection>
The very same problem has already been reported in the past:
https://dev.locationtech.org/mhonarc/lists/geomesa-users/msg02330.html
I am using the most recent stable versions of GeoMesa (2.2.1),
GeoMesa-FS (2.11-2.2.1) and GeoServer (2.14.2) and the issue still
persists.
Enabling "strict CITE compliance" for WFS in GeoServer and explicitly
requesting WFS 1.0.0 in QGIS (as mentioned in the old request linked
above) leads to GML 2 being served and is a work-around that fixes the
issue for me. However it forces me to use an old WFS version with
limited features compared to WFS 2.0.0.
Do you know what is the for this? Are there any plans to fix this on
your side (not sure whether this is even caused by GeoMesa or GeoServer)?
Asked the same question in the geomesa-users list.
Thanks and best wishes!
Christian
*Mit freundlichen Grüßen / Kind regards***
*Christian Sickert
*
Crowd Data & Analytics for Automated Driving
Daimler AG - Mercedes-Benz Cars Development - RD/AFC
+49 176 309 71612
[email protected] <mailto:[email protected]>
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_______________________________________________
Geoserver-users mailing list
Please make sure you read the following two resources before posting to this
list:
- Earning your support instead of buying it, but Ian Turton:
http://www.ianturton.com/talks/foss4g.html#/
- The GeoServer user list posting guidelines:
http://geoserver.org/comm/userlist-guidelines.html
If you want to request a feature or an improvement, also see this:
https://github.com/geoserver/geoserver/wiki/Successfully-requesting-and-integrating-new-features-and-improvements-in-GeoServer
[email protected]
https://lists.sourceforge.net/lists/listinfo/geoserver-users
