Have look at these methods:
public void testFeatureCollectionWrite() throws Exception { StringWriter writer
= new StringWriter(); fjson.writeFeatureCollection(collection(), writer);
assertEquals(strip(collectionText()), writer.toString()); } public void
testFeatureCollectionRead() throws Exception { FeatureCollection actual =
fjson.readFeatureCollection(reader(strip(collectionText())));
assertNotNull(actual); FeatureCollection expected = collection();
assertEquals(expected.size(), actual.size()); Iterator a = actual.iterator();
Iterator e = expected.iterator(); while(e.hasNext()) { assertTrue(a.hasNext());
assertEqualsLax((SimpleFeature)e.next(), (SimpleFeature) a.next()); }
actual.close(a); expected.close(e); }
The work with a java Writer; use your http connection and wrap it up as a
writer on one end; and a reader on the other; and use these two methods as
shown above:
- readFeatureCollection( reader )
- writeFeatureCollection( featureCollection, writer )
Or send a string over the wire (using whatever remoting software you are happy
with ) and use a StringWriter as shown in the test case to generate your string
on one side; and a StringReader on the other end.
--
Jody Garnett
On Monday, 25 April 2011 at 12:09 AM, mounir younes wrote:
> I just read this
>
> http://svn.osgeo.org/geotools/trunk/modules/unsupported/geojson/src/test/java/org/geotools/geojson/FeatureJSONTest.java
>
> but did not really understand how i could send the collection over the
> network.
>
> Can someone help ?
>
>
> On Sun, Apr 24, 2011 at 4:47 PM, Jody Garnett <[email protected]> wrote:
> > Oh; and when looking at unsupported module - I would skip looking for
> > documentation and just go straight to the test cases and read those :-)
> >
> > Report back with what you find out to the user list; and I can add to the
> > user guide for the next person.
> > --
> > Jody Garnett
> >
> > On Sunday, 24 April 2011 at 11:02 PM, mounir younes wrote:
> > > Could you provide me with more explanation about this please ? where can
> > > I find appropriate knowledge about it? it didn't find it in the
> > > unsupported part in the user guide
> > >
> > > On Sun, Apr 24, 2011 at 3:58 PM, mounir younes <[email protected]>
> > > wrote:
> > > > Thank you andrea :D and sorry for the "need help fast" comment ! i just
> > > > though that when someone reads it he replies asap :D thx again
> > > >
> > > >
> > > > On Sun, Apr 24, 2011 at 3:39 PM, Andrea Aime
> > > > <[email protected]> wrote:
> > > > > On Sun, Apr 24, 2011 at 2:01 PM, mounir younes
> > > > > <[email protected]> wrote:
> > > > > > Hello everyone ! I need to send a feature collection over the
> > > > > > network ! I
> > > > > > created a class (which holds the feature source) and it implements
> > > > > > serializable.
> > > > > >
> > > > > > The thing is that when I read the object back at the client I get
> > > > > > this error
> > > > > >
> > > > > > java.io.WriteAbortedException: writing aborted;
> > > > > > java.io.NotSerializableException:
> > > > > > org.geotools.feature.DefaultFeatureCollection
> > > > > >
> > > > > > Which should mean that DefaultFeatureCollection is not serializable
> > > > > > what
> > > > > > should I do ? should I get the FeatureCollection code and modify it
> > > > > > to
> > > > > > implement serializable? If yes, where could I get its code from ?
> > > > > > svn?
> > > > > > (link) ? can someone help? I need help fast! I don't have a lot of
> > > > > > time :)
> > > > >
> > > > > Premise: if you want to get help on a given deadline you should get
> > > > > those
> > > > > support contract with various support levels that guarantee a
> > > > > response
> > > > > within N hours.
> > > > > This mailing list is providing help on a volunteer basis, so people
> > > > > help
> > > > > when they feel to and have time, "I want help fast" "This is urgent"
> > > > > or
> > > > > the many variants of this message are annoying.
> > > > >
> > > > > That said, nothing in the Feature hierarchy implements Serializable,
> > > > > if you make
> > > > > a Serializable collection you'll find that feature themselves are not
> > > > > serializable.
> > > > >
> > > > > Use a format that is meant for the network, such as GML or GeoJSON,
> > > > > to send over a feature collection.
> > > > >
> > > > > I'd suggest you have a look at the gt-geojson module, it's still not
> > > > > supported
> > > > > but should give you decent performance without tying the two ends
> > > > > talking
> > > > > to be written using the same version of Geotools or, for what is
> > > > > worth, both
> > > > > being written in Java.
> > > > >
> > > > > Cheers
> > > > > Andrea
> > > > >
> > > > > --
> > > > > -------------------------------------------------------
> > > > > Ing. Andrea Aime
> > > > > GeoSolutions S.A.S.
> > > > > Tech lead
> > > > >
> > > > > Via Poggio alle Viti 1187
> > > > > 55054 Massarosa (LU)
> > > > > Italy
> > > > >
> > > > > phone: +39 0584 962313
> > > > > fax: +39 0584 962313
> > > > >
> > > > > http://www.geo-solutions.it
> > > > > http://geo-solutions.blogspot.com/
> > > > > http://www.youtube.com/user/GeoSolutionsIT
> > > > > http://www.linkedin.com/in/andreaaime
> > > > > http://twitter.com/geowolf
> > > > >
> > > > > -------------------------------------------------------
> > > > >
> > > >
> > > ------------------------------------------------------------------------------
> > > Fulfilling the Lean Software Promise
> > > Lean software platforms are now widely adopted and the benefits have been
> > > demonstrated beyond question. Learn why your peers are replacing JEE
> > > containers with lightweight application servers - and what you can gain
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> > > _______________________________________________
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> > > [email protected]
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> > >
> >
>
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