Examples with GeometrySerializer com.bedatadriven.geojson.GeometrySerializer used on opensource projects

Example 1 with GeometrySerializer

use of com.bedatadriven.geojson.GeometrySerializer in project activityinfo by bedatadriven.

the class AdminLevelResource method getFeatures.

@GET
@Timed(name = "site.rest.admin.features")
@Path("/entities/features")
public Response getFeatures(@InjectParam EntityManager em) throws IOException {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    OutputStreamWriter writer = new OutputStreamWriter(baos, Charsets.UTF_8);
    List<AdminEntity> entities = em.createQuery("select e  from AdminEntity e where e.deleted = false and e.level = :level").setParameter("level", level).getResultList();
    JsonFactory jfactory = new JsonFactory();
    JsonGenerator json = jfactory.createJsonGenerator(writer);
    DefaultPrettyPrinter prettyPrinter = new DefaultPrettyPrinter();
    json.setPrettyPrinter(prettyPrinter);
    json.writeStartObject();
    json.writeStringField("type", "FeatureCollection");
    json.writeFieldName("features");
    json.writeStartArray();
    GeometrySerializer geometrySerializer = new GeometrySerializer();
    for (AdminEntity entity : entities) {
        if (entity.getGeometry() != null) {
            json.writeStartObject();
            json.writeStringField("type", "Feature");
            json.writeNumberField("id", entity.getId());
            json.writeObjectFieldStart("properties");
            json.writeStringField("name", entity.getName());
            if (entity.getParentId() != null) {
                json.writeNumberField("parentId", entity.getParentId());
            }
            json.writeEndObject();
            json.writeFieldName("geometry");
            geometrySerializer.writeGeometry(json, entity.getGeometry());
            json.writeEndObject();
        }
    }
    json.writeEndArray();
    json.writeEndObject();
    json.close();
    return Response.ok().entity(baos.toByteArray()).type(MediaType.APPLICATION_JSON).build();
}