Hi,
I have a feature collection object from a json document that I parsed.
When I do some further filtering of the features using the
subCollection method on the FC object, I don't get anything back. I've
tried a number of CQL combinations but the code just keeps on giving
me back a SubFeatureCollection with zero features.
Here's my code...
FeatureJSON featureJSON = new FeatureJSON();
FeatureCollection<SimpleFeatureType, SimpleFeature> fc = featureJSON
.readFeatureCollection(ClassLoader
.getSystemResourceAsStream("wahealth.json"));
System.out.println("old size: " + fc.size()); // returns 2
String cql = "gtstate = true";
// String cql = "sex = 3";
// String cql = "hd_id IN (1, 2)";
// String cql = "hd_id IN ('1', '2')";
// String cql = "varname = 'insufffrt '";
Filter filter = ECQL.toFilter(cql);
FeatureCollection<SimpleFeatureType, SimpleFeature> newFC = fc
.subCollection(filter);
System.out.println("new size: " + newFC.size()); // returns zero
all the time
And here's the json object I'm running a filter on?
{
"type": "FeatureCollection",
"features": [
{
"type": "Feature",
"id": "dohwa_hwss_hd.fid--43245823_13fe0b8af65_-713a",
"geometry": null,
"properties": {
"sex": 3,
"hd_id": 1,
"gtstate": true,
"est_count": 77752.599975,
"varname": "insufffrt "
}
},
{
"type": "Feature",
"id": "dohwa_hwss_hd.fid--43245823_13fe0b8af65_-7139",
"geometry": null,
"properties": {
"sex": 3,
"hd_id": 2,
"gtstate": true,
"est_count": 32409.613198,
"varname": "insufffrt "
}
},
]
}
Is this a bug in the geotools geojson module?
Thanks,
Gerson
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