| commit | 660889e8be0ccecdab3addbce44da13fc890fa32 | [log] [tgz] |
|---|---|---|
| author | Neil Fuller <[email protected]> | Wed Oct 20 15:54:55 2021 +0000 |
| committer | Automerger Merge Worker <[email protected]> | Wed Oct 20 15:54:55 2021 +0000 |
| tree | df4b69f514e76000986d5966d8d28c766b1f3a43 | |
| parent | 6b8e3f0b0de304def369091d4247837ccb156f9d [diff] | |
| parent | 301ac396ea253cdefa5e4c89a33ba545d4180bb4 [diff] |
Update OWNERS am: 105049acaf am: 2bb76ad5c9 am: 8c66c7bc7d am: 301ac396ea Original change: https://android-review.googlesource.com/c/platform/external/geojson-jackson/+/1864562 Change-Id: Ie1918e4948809582db6f995d0bb5d54627da8b1d
A small package of all GeoJson POJOs (Plain Old Java Objects) for serializing and deserializing of objects via JSON Jackson Parser.
If you know what kind of object you expect from a GeoJson file you can directly read it like this:
FeatureCollection featureCollection = new ObjectMapper().readValue(inputStream, FeatureCollection.class);
If you want to read any GeoJson file read the value as GeoJsonObject and then test for the contents via instanceOf:
GeoJsonObject object = new ObjectMapper().readValue(inputStream, GeoJsonObject.class); if (object instanceof Polygon) { ... } else if (object instanceof Feature) { ... }
and so on.
Or you can use the GeoJsonObjectVisitor to visit the right method:
GeoJsonObject object = new ObjectMapper().readValue(inputStream, GeoJsonObject.class); object.accept(visitor);
Writing Json is even easier. You just have to create the GeoJson objects and pass them to the Jackson ObjectMapper.
FeatureCollection featureCollection = new FeatureCollection(); featureCollection.add(new Feature()); String json= new ObjectMapper().writeValueAsString(featureCollection);
You can find the library in the Maven Central Repository.
<dependency> <groupId>de.grundid.opendatalab</groupId> <artifactId>geojson-jackson</artifactId> <version>1.8.1</version> </dependency>