Examples with WatchResponse io.etcd.jetcd.watch.WatchResponse used on opensource projects

Example 6 with WatchResponse

use of io.etcd.jetcd.watch.WatchResponse in project jetcd by coreos.

the class WatchTest method testWatchClose.

@ParameterizedTest
@MethodSource("parameters")
public void testWatchClose(final Client client) throws Exception {
    final ByteSequence key = randomByteSequence();
    final ByteSequence value = randomByteSequence();
    final List<WatchResponse> events = Collections.synchronizedList(new ArrayList<>());
    try (Watcher watcher = client.getWatchClient().watch(key, events::add)) {
        client.getKVClient().put(key, value).get();
        await().atMost(TIME_OUT_SECONDS, TimeUnit.SECONDS).untilAsserted(() -> assertThat(events).isNotEmpty());
    }
    client.getKVClient().put(key, randomByteSequence()).get();
    await().atMost(TIME_OUT_SECONDS, TimeUnit.SECONDS).untilAsserted(() -> assertThat(events).hasSize(1));
    assertThat(events.get(0).getEvents()).hasSize(1);
    assertThat(events.get(0).getEvents().get(0).getEventType()).isEqualTo(EventType.PUT);
    assertThat(events.get(0).getEvents().get(0).getKeyValue().getKey()).isEqualTo(key);
    assertThat(events.get(0).getEvents().get(0).getKeyValue().getValue()).isEqualTo(value);
}

Example 7 with WatchResponse

use of io.etcd.jetcd.watch.WatchResponse in project jetcd by coreos.

the class WatchTest method testProgressRequest.

@ParameterizedTest
@MethodSource("parameters")
public void testProgressRequest(final Client client) throws Exception {
    final ByteSequence key = randomByteSequence();
    final ByteSequence value = randomByteSequence();
    final Watch watchClient = client.getWatchClient();
    final AtomicReference<WatchResponse> emptyWatcherEventRef = new AtomicReference<>();
    final AtomicReference<WatchResponse> activeWatcherEventRef = new AtomicReference<>();
    try (Watcher activeWatcher = watchClient.watch(key, activeWatcherEventRef::set);
        Watcher emptyWatcher = watchClient.watch(key.concat(randomByteSequence()), emptyWatcherEventRef::set)) {
        // Check that a requestProgress returns identical revisions initially
        watchClient.requestProgress();
        await().atMost(TIME_OUT_SECONDS, TimeUnit.SECONDS).untilAsserted(() -> {
            assertThat(activeWatcherEventRef.get()).isNotNull();
            assertThat(emptyWatcherEventRef.get()).isNotNull();
        });
        WatchResponse activeEvent = activeWatcherEventRef.get();
        WatchResponse emptyEvent = emptyWatcherEventRef.get();
        assertThat(activeEvent).satisfies(WatchResponse::isProgressNotify);
        assertThat(emptyEvent).satisfies(WatchResponse::isProgressNotify);
        assertThat(activeEvent.getHeader().getRevision()).isEqualTo(emptyEvent.getHeader().getRevision());
        // Put a value being watched by only the active watcher
        activeWatcherEventRef.set(null);
        emptyWatcherEventRef.set(null);
        client.getKVClient().put(key, value).get();
        await().atMost(TIME_OUT_SECONDS, TimeUnit.SECONDS).untilAsserted(() -> {
            assertThat(activeWatcherEventRef.get()).isNotNull();
        });
        activeEvent = activeWatcherEventRef.get();
        emptyEvent = emptyWatcherEventRef.get();
        assertThat(emptyEvent).isNull();
        assertThat(activeEvent).isNotNull();
        long latestRevision = activeEvent.getHeader().getRevision();
        // verify the next progress notify brings both watchers to the latest revision
        activeWatcherEventRef.set(null);
        emptyWatcherEventRef.set(null);
        watchClient.requestProgress();
        await().atMost(TIME_OUT_SECONDS, TimeUnit.SECONDS).untilAsserted(() -> {
            assertThat(activeWatcherEventRef.get()).isNotNull();
            assertThat(emptyWatcherEventRef.get()).isNotNull();
        });
        activeEvent = activeWatcherEventRef.get();
        emptyEvent = emptyWatcherEventRef.get();
        assertThat(activeEvent).satisfies(WatchResponse::isProgressNotify);
        assertThat(emptyEvent).satisfies(WatchResponse::isProgressNotify);
        assertThat(activeEvent.getHeader().getRevision()).isEqualTo(emptyEvent.getHeader().getRevision()).isEqualTo(latestRevision);
    }
}

Example 8 with WatchResponse

use of io.etcd.jetcd.watch.WatchResponse in project jetcd by coreos.

the class WatchTest method testWatchOnPut.

@ParameterizedTest
@MethodSource("parameters")
public void testWatchOnPut(final Client client) throws Exception {
    final ByteSequence key = randomByteSequence();
    final ByteSequence value = randomByteSequence();
    final AtomicReference<WatchResponse> ref = new AtomicReference<>();
    try (Watcher watcher = client.getWatchClient().watch(key, ref::set)) {
        client.getKVClient().put(key, value).get();
        await().atMost(TIME_OUT_SECONDS, TimeUnit.SECONDS).untilAsserted(() -> assertThat(ref.get()).isNotNull());
        assertThat(ref.get()).isNotNull();
        assertThat(ref.get().getEvents().size()).isEqualTo(1);
        assertThat(ref.get().getEvents().get(0).getEventType()).isEqualTo(EventType.PUT);
        assertThat(ref.get().getEvents().get(0).getKeyValue().getKey()).isEqualTo(key);
    }
}