commit | 285dea38f8069278217568b38814d51121755912 | [log] [tgz] |
---|---|---|
author | Adrian Stabiszewski <github@grundid.de> | Mon Jan 02 09:41:05 2017 +0100 |
committer | GitHub <noreply@github.com> | Mon Jan 02 09:41:05 2017 +0100 |
tree | 38c3789448648b4db5da5ba638a0175dd2ec6a9d | |
parent | cf4c61cfaab3833d10f4c57e68110eb7c2d868ff [diff] |
typo fix
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 what 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>1.7</version> </dependency>