Re: [Geotools-gt2-users] GML encoding issues with v2.7.0.1

[Jody G. <jod...@gm...>]

Perhaps my email was too polite :-)

Rico you need to generate an XML schema; or it is not expected to work at all. Indeed the fact you are getting anything is a statement to how stable/robust the code is :-)

Please have a look over the docs; and if you have any questions let me know on the email list and we can update the docs.
-- 
Jody Garnett

On Friday, 20 May 2011 at 3:14 AM, Jody Garnett wrote: 
> Hurray feedback :-)
> 
> I put together the GML utility class to try and package up some of the GTXML / Configuration options; but as I am learning the ropes I really need feedback for it to work correctly.
> 
> One thing that is missing from your example below is a reference to your XML Schema? Without that I cannot expect things to work very smoothly? You can use the utility class to generate your xml schema if you have not already.
> 
> Note that "boundedby" is part of the AbstractFeatureType; the code must of defaulted to use AbstractFeatureType as you have not provided a real XML Schema for it to follow?
> 
> There is a picture of how things work on the documentation page; but as indicated I need assistance with the code examples.
> - http://docs.geotools.org/latest/userguide/library/xml/geometry.html
> 
> Can you try again with your own XSD file and tell me if things improve?
> -- 
> Jody Garnett
> 
> On Friday, 20 May 2011 at 1:55 AM, Rico Lelina wrote:
> > Hello,
> > 
> > I have a SimpleFeatureCollection whose SimpleFeatures have been created from a custom GeoJSON decoder. Then I try to encode the collection into GML using the following code:
> > 
> > GML encoder = new GML(GML.Version.WFS1_1);
> >  encoder.encode(outputStream, featureCollection);
> > 
> > First, I found that if I do not set the namespace URI on the SimpleFeatureTypeBuilder in my GeoJSON decoder to http://www.opengis.net/wfs, the namespace on the properties in the encoded GML is null, e.g. (see last 2 line lines):
> > 
> > <?xml version="1.0" encoding="UTF-8"?>
> > <wfs:FeatureCollection
> >  xmlns:ogc="http://www.opengis.net/ogc"
> >  xmlns:gml="http://www.opengis.net/gml"
> >  xmlns:xlink="http://www.w3.org/1999/xlink"
> >  xmlns:ows="http://www.opengis.net/ows"
> >  xmlns:wfs="http://www.opengis.net/wfs">
> > <gml:boundedBy>
> > <gml:Envelope>
> > <gml:lowerCorner>-124.1633 -34.3667</gml:lowerCorner>
> > <gml:upperCorner>57.7144 47.7528</gml:upperCorner>
> > </gml:Envelope>
> > </gml:boundedBy>
> > <gml:featureMember>
> > <wfs:MultiPoint gml:id="9c068ab0-b56c-40bb-8e33-b4507ed3547c">
> > <gml:name>Cape Town</gml:name>
> > <gml:boundedBy>
> > <gml:Envelope>
> > <gml:lowerCorner>18.4167 -33.9167</gml:lowerCorner>
> > <gml:upperCorner>18.4167 -33.9167</gml:upperCorner>
> > </gml:Envelope>
> > </gml:boundedBy>
> > <null:fillColor>#ee9900</null:fillColor>
> > <null:strokeColor>#000000<null:strokeColor>
> > etc.
> > 
> > So I changed my GeoJSON decoder to set the namespace URI on the builder to the URI above. Now the properties are encoding with wfs:fillColor, wfs:strokeColor, etc.
> > 
> > Second, I noticed that each gml:featureMember element has a gml:boundedBy element even though there is only a single point geometry. Is this because the geometry is actually a MultiPoint?
> > 
> > Third, during encoding I get these warning messages on the log. It may be affecting performance when I'm encoding a huge number of features, and also I think it should read "Could not find type..." Is there something I can do in building the features to avoid these warning messages?
> > 
> > May 19, 2011 10:23:45 AM org.geotools.gml2.bindings.GMLEncodingUtils AbstractFeatureType_getProperties
> > WARNING: Could find type for Polygon in the schema, generating type from feature.
> > May 19, 2011 10:23:45 AM org.geotools.gml2.bindings.GMLEncodingUtils AbstractFeatureType_getProperties
> > WARNING: Could find type for MultiPoint in the schema, generating type from feature.
> > 
> > Thanks.
> > 
> > -- 
> > Rico
> > ------------------------------------------------------------------------------
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