commit	b4a331b07e002be44b4db97a5969e5b8a2eeeaa9	[log] [tgz]
author	Linux Build Service Account <lnxbuild@localhost>	Wed Jan 26 00:15:21 2022 -0800
committer	Linux Build Service Account <lnxbuild@localhost>	Wed Jan 26 00:15:21 2022 -0800
tree	df4b69f514e76000986d5966d8d28c766b1f3a43
parent	484b3b00aada60909c119e35ac22c420685e1d1c [diff]
parent	f0861752f6ced47f33db3ccac54bf3ac39e121f3 [diff]

tree: df4b69f514e76000986d5966d8d28c766b1f3a43

README.md

GeoJson POJOs for Jackson

A small package of all GeoJson POJOs (Plain Old Java Objects) for serializing and deserializing of objects via JSON Jackson Parser.

Usage

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);

Maven Central

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>