Example #1
0
 @Override
 public void serialize(DataOutput dataOutput, GeobufFeature geobufFeature) throws IOException {
   GeobufEncoder enc = getEncoder();
   // This could be more efficient, we're wrapping a single feature in a feature collection. But
   // that way the key/value
   // serialization all works.
   Geobuf.Data feat = enc.makeFeatureCollection(Arrays.asList(geobufFeature));
   byte[] data = feat.toByteArray();
   dataOutput.writeInt(data.length);
   dataOutput.write(data);
 }
Example #2
0
    @Override
    public GeobufFeature deserialize(DataInput dataInput, int i) throws IOException {
      int len = dataInput.readInt();
      byte[] feat = new byte[len];
      dataInput.readFully(feat);
      Geobuf.Data data = Geobuf.Data.parseFrom(feat);

      return new GeobufFeature(
          data.getFeatureCollection().getFeatures(0),
          data.getKeysList(),
          Math.pow(10, data.getPrecision()));
    }
Example #3
0
  public Geobuf.Data makeFeatureCollection(Collection<GeobufFeature> featureCollection) {
    Geobuf.Data.Builder data =
        Geobuf.Data.newBuilder()
            .setPrecision(this.precision)
            // TODO don't hardwire
            .setDimensions(2);

    Geobuf.Data.FeatureCollection.Builder fc = Geobuf.Data.FeatureCollection.newBuilder();

    // deduplicate keys
    List<String> keys = new ArrayList<>();

    featureCollection.stream().map(f -> this.makeFeature(f, keys)).forEach(fc::addFeatures);

    fc.addAllValues(Collections.emptyList());
    fc.addAllCustomProperties(Collections.emptyList());

    data.setFeatureCollection(fc);
    data.addAllKeys(keys);

    return data.build();
  }