| commit | f319343f712e586feb147e9932caa028e4f66970 | [log] [tgz] |
|---|---|---|
| author | Sadaf Ebrahimi <[email protected]> | Wed Dec 18 20:13:11 2024 +0000 |
| committer | Sadaf Ebrahimi <[email protected]> | Wed Dec 18 20:13:11 2024 +0000 |
| tree | 40b8c90396373e0c093b1afbef7da37a0f0bb204 | |
| parent | 0a3f43d92ad5792c5b4b498ed882d515197e6f75 [diff] |
Add janitors to the OWNERS file Test: TreeHugger Change-Id: I349d1139f4b640338ee1baf12192402dca192282
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>