Examples with UpdateDistanceToTailSerializer io.pravega.client.stream.impl.ReaderGroupState.UpdateDistanceToTail.UpdateDistanceToTailSerializer used on opensource projects

Example 1 with UpdateDistanceToTailSerializer

use of io.pravega.client.stream.impl.ReaderGroupState.UpdateDistanceToTail.UpdateDistanceToTailSerializer in project pravega by pravega.

the class SerializationTest method testUpdateDistanceToTail.

@Test
@SuppressWarnings("unchecked")
public void testUpdateDistanceToTail() throws Exception {
    UpdateDistanceToTailSerializer serializer = new UpdateDistanceToTail.UpdateDistanceToTailSerializer();
    UpdateDistanceToTail update = new UpdateDistanceToTail(createString(), r.nextLong(), createSegmentRangeMap());
    UpdateDistanceToTail deserialized = serializer.deserialize(serializer.serialize(update));
    assertEquals(deserialized, update);
    UpdateDistanceToTailSerializer oldSerializer = new UpdateDistanceToTailSerializer() {

        @Override
        protected void declareVersions() {
            version(0).revision(0, this::write00, this::read00);
        }
    };
    UpdateDistanceToTail oldStyleUpdate = serializer.deserialize(oldSerializer.serialize(update));
    assertEquals(update.getReaderId(), oldStyleUpdate.getReaderId());
    assertEquals(update.getDistanceToTail(), oldStyleUpdate.getDistanceToTail());
    assertEquals(null, oldStyleUpdate.getLastReadPositions());
    // Change the state to reflect the update
    val segmentToOffsets = ImmutableMap.of(new SegmentWithRange(new Segment("scope", "stream", 0), 0.0, 1.0), 0L);
    ReaderGroupState state = new ReaderGroupState("_RGTest", mock(Revision.class), mock(ReaderGroupConfig.class), segmentToOffsets, mock(Map.class), false);
    // ensure no exceptions are thrown.
    oldStyleUpdate.update(state);
}