That is the limit of the well tested portion of GeoTools :-)
There is however Feature; it is the super class of SimpleFeature and matches
your use case allowing complex attributes to be represented.
The application schema group has been working with Features and has made
great progress.
You will need to directly use FeatureFactory (to create a Feature). Nobody
has defined any builders or other support classes to help us programmers
work easily with this stuff. One of those cases where a budget or volunteer
is needed; perhaps you would like give it a go?
Cheers,
Jody
On Thu, Apr 28, 2011 at 2:00 AM, Rico Lelina <[email protected]> wrote:
> Thanks. One other follow up question. We have GeoJSON files where some
> properties are complex, e.g., "C1":{"A":1,"B":2}. In this case I cannot use
> SimpleFeature. Which class should I use. I have been going through the unit
> tests for 2.7.0.1 and I could not find an example.
>
> Rico
>
>
> On Wed, Apr 27, 2011 at 9:52 AM, Justin Deoliveira
> <[email protected]>wrote:
>
>> Yeah, this is how the geojson parser works... since there is no schema or
>> anything it has to use the first feature to build the feature type. Feel
>> free to open a bug report in the tracker... might be better not to just
>> choke like this. Or possibly rebuild the type on the fly.
>>
>>
>> On Wed, Apr 27, 2011 at 12:36 AM, andrea antonello <
>> [email protected]> wrote:
>>
>>> It might be because the first feature doesn't have the ALIAS attribute?
>>>
>>> Andrea
>>>
>>> On Tue, Apr 26, 2011 at 11:55 PM, Rico Lelina <[email protected]> wrote:
>>> > I have the following GeoJSON file:
>>> > {"type":"FeatureCollection",
>>> > "features":
>>> > [
>>> > {"type":"Feature",
>>> > "geometry":{"type":"Point","coordinates":[0.0, 0.0]},
>>> > "properties":{"NAME":"Point-0001"}
>>> > },
>>> > {"type":"Feature",
>>> > "geometry":{"type":"Point","coordinates":[1.0, 1.0]},
>>> > "properties":{"NAME":"Point-0002","ALIAS":"Point2"}
>>> > }
>>> > ]
>>> > }
>>> >
>>> > My code:
>>> > BufferedReader reader = new BufferedReader(new FileReader(srcFile));
>>> > FeatureJSON fjson = new FeatureJSON();
>>> > FeatureIterator<SimpleFeature> features =
>>> > fjson.streamFeatureCollection(reader);
>>> > while (features.hasNext()) {
>>> > ...
>>> > }
>>> >
>>> > The first feature is read just fine. But when I get to the next
>>> feature, I
>>> > get the following exception on the call to hasNext():
>>> > java.lang.RuntimeException: java.lang.IllegalArgumentException: No such
>>> > attribute:ALIAS
>>> > at
>>> >
>>> org.geotools.geojson.feature.FeatureJSON$FeatureCollectionIterator.readNext(FeatureJSON.java:533)
>>> > at
>>> >
>>> org.geotools.geojson.feature.FeatureJSON$FeatureCollectionIterator.hasNext(FeatureJSON.java:517)
>>> >
>>> > Can't I use SimpleFeature in this case? What is causing the exception?
>>> >
>>> > Thanks,
>>> > Rico
>>> >
>>> >
>>> >
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>>
>>
>>
>> --
>> Justin Deoliveira
>> OpenGeo - http://opengeo.org
>> Enterprise support for open source geospatial.
>>
>>
>>
>> ------------------------------------------------------------------------------
>> WhatsUp Gold - Download Free Network Management Software
>> The most intuitive, comprehensive, and cost-effective network
>> management toolset available today. Delivers lowest initial
>> acquisition cost and overall TCO of any competing solution.
>> http://p.sf.net/sfu/whatsupgold-sd
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>> Geotools-gt2-users mailing list
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>>
>
>
> --
> Rico
>
>
> ------------------------------------------------------------------------------
> WhatsUp Gold - Download Free Network Management Software
> The most intuitive, comprehensive, and cost-effective network
> management toolset available today. Delivers lowest initial
> acquisition cost and overall TCO of any competing solution.
> http://p.sf.net/sfu/whatsupgold-sd
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> https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users
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>
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