Hi,
Thanks for your answer.
I think, I found the problem but not the solution;
In the parsing phase and in this instruction:
FeatureCollectionType fc = (FeatureCollectionType) parser.parse(in);
I got the following message:
Sep 14, 2011 11:24:02 AM
org.geotools.feature.simple.SimpleFeatureTypeBuilder add
WARNING: Creating location with null CoordinateReferenceSystem - did
you mean to setCRS?
Sep 14, 2011 11:24:02 AM
org.geotools.feature.simple.SimpleFeatureTypeBuilder add
WARNING: Creating the_geom with null CoordinateReferenceSystem - did
you mean to setCRS?
I think this make my geometry null, when I want to read it.
Any idea?
Regards,
Bahman
On Tue, Sep 13, 2011 at 5:48 PM, Jody Garnett <[email protected]> wrote:
> Hey someone from Australia :-)
> You are already using the GML parser (it is included as part of your
> WFSConfiguration.
> One thing that is a bit odd is that you are parsing out features; if all you
> want is the geometry you should be able to ask for *just* the geometry (as
> long as you know its name).
> I assume you found the documentation page here:
> - http://docs.geotools.org/latest/userguide/library/xml/geometry.html
> It has this near the end
> StreamingParser parser = new StreamingParser( configuration, xml, "//Point"
> )
> Point p = null;
> while ( ( p = (Point) parser.parse() ) != null ) {
> ...
> }
> --
> Jody Garnett
>
> On Monday, 12 September 2011 at 11:26 PM, Bahman Javadi wrote:
>
> Hi,
>
> I just want to create a geometry from a WFS query.
> I make a WFS query and send it to WFS server, which returns me the
> requested features.
> I save the result in a XML file temporary. it has the geometry inside as
> well.
>
> I can read all the numerical data from the file as follows:
>
> tmp = File.createTempFile("getFeature", "xml");
> tmp.deleteOnExit();
>
> Transformer tx = TransformerFactory.newInstance().newTransformer();
> tx.transform(new DOMSource(doc), new StreamResult(tmp));
>
> in = new FileInputStream(tmp);
>
> WFSConfiguration configuration = new
> org.geotools.wfs.v1_1.WFSConfiguration();
> Parser parser = new Parser(configuration);
> FeatureCollectionType fc = (FeatureCollectionType) parser.parse(in);
>
> EList featureCollections = fc.getFeature();
> assert featureCollections.size() <= 1 : "feature
> collection size should only be zero or one";
>
> SimpleFeatureCollection featureCollection =
> (SimpleFeatureCollection) featureCollections
> .get(0);
> LOGGER.debug("There are " + featureCollection.size()
> + " featureCollection entries.");
>
> SimpleFeatureIterator features = featureCollection.features();
>
> while (features.hasNext()) {
> SimpleFeature f = features.next();
>
> Map<String, Object> featureMap = new HashMap<String, Object>();
> for (String attribute : attributesToReturn) {
> Object attributeValue = f.getAttribute(attribute);
> featureMap.put(attribute, attributeValue);
> }
>
> // the row (or Map in this case) will use the attribute value of
> // the table linking key as its key. we'll assume here that
> // the table linking key is always provided as one of the
> // parameters in the attributesToBeReturned field
> Object fid = f.getAttribute(params.getTableLinkingKey());
>
> // think of an entry in the featureMembers map being a row
> // in a table and the featureMap being the column entries
> // for each row
> featureMembers.put(fid, featureMap);
>
> }
> }
>
> but in this case I see the geometry field is empty.
> I wonder if anyone knows how to handle the geometry.
>
> Do I need the GML parser?
>
> Thanks in advance,
> Bahman
>
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