https://github.com/opendatalab-de/geojson-jackson

GeoJson POJOs for Jackson - serialize and deserialize objects with ease
https://github.com/opendatalab-de/geojson-jackson

Last synced: 4 days ago
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GeoJson POJOs for Jackson - serialize and deserialize objects with ease

• Host: GitHub
• URL: https://github.com/opendatalab-de/geojson-jackson
• Owner: opendatalab-de
• License: apache-2.0
• Created: 2013-07-16T11:00:54.000Z (over 11 years ago)
• Default Branch: master
• Last Pushed: 2024-06-19T15:43:33.000Z (5 months ago)
• Last Synced: 2024-08-01T13:34:03.697Z (3 months ago)
• Language: Java
• Homepage: http://blog.opendatalab.de
• Size: 106 KB
• Stars: 263
• Watchers: 23
• Forks: 94
• Open Issues: 24
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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• awesome-ccamel - opendatalab-de/geojson-jackson - GeoJson POJOs for Jackson - serialize and deserialize objects with ease (Java)

README

        
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. This libary conforms to the 2008 GeoJSON specification.

Usage

-----

If you know what kind of object you expect from a GeoJson file you can directly read it like this:

```java

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:

```java

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:

```java

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.

```java

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.

```xml

 de.grundid.opendatalab

 geojson-jackson

 1.14

```