Examples with RoaringBitmap org.roaringbitmap.RoaringBitmap used on opensource projects

Example 81 with RoaringBitmap

use of org.roaringbitmap.RoaringBitmap in project Gaffer by gchq.

the class RoaringBitmapJsonSerialisationTest method testCanSerialiseAndDeserialiseWithRuns.

@Test
public void testCanSerialiseAndDeserialiseWithRuns() throws IOException {
    final ByteArrayBuilder byteArrayBuilder = new ByteArrayBuilder();
    JsonGenerator jsonGenerator = JSON_FACTORY.createGenerator(byteArrayBuilder);
    RoaringBitmap testBitmap = new RoaringBitmap();
    testBitmap.add(2);
    testBitmap.add(3000);
    testBitmap.add(300000);
    for (int i = 400000; i < 500000; i += 2) {
        testBitmap.add(i);
    }
    testBitmap.runOptimize();
    SERIALISER.serialize(testBitmap, jsonGenerator, null);
    jsonGenerator.flush();
    byte[] serialisedBitmap = byteArrayBuilder.toByteArray();
    JsonParser parser = JSON_FACTORY.createParser(serialisedBitmap);
    parser.setCodec(new ObjectMapper());
    Object o = DESERIALISER.deserialize(parser, null);
    assertEquals(RoaringBitmap.class, o.getClass());
    assertEquals(testBitmap, o);
}