Examples with ByteSequence io.etcd.jetcd.ByteSequence used on opensource projects

Example 16 with ByteSequence

use of io.etcd.jetcd.ByteSequence in project jetcd by coreos.

the class WatchResumeTest method testWatchOnPut.

@Test
public void testWatchOnPut() throws Exception {
    try (Client client = TestUtil.client(cluster).build()) {
        Watch watchClient = client.getWatchClient();
        KV kvClient = client.getKVClient();
        final ByteSequence key = TestUtil.randomByteSequence();
        final ByteSequence value = TestUtil.randomByteSequence();
        final AtomicReference<WatchResponse> ref = new AtomicReference<>();
        try (Watcher watcher = watchClient.watch(key, ref::set)) {
            cluster.restart();
            kvClient.put(key, value).get(1, TimeUnit.SECONDS);
            await().atMost(30, TimeUnit.SECONDS).untilAsserted(() -> 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);
        }
    }
}

Example 17 with ByteSequence

use of io.etcd.jetcd.ByteSequence in project jetcd by coreos.

the class WatchTokenExpireTest method setUpEnvironment.

private void setUpEnvironment() throws Exception {
    final File caFile = new File(Objects.requireNonNull(getClass().getResource("/ssl/cert/ca.pem")).toURI());
    Client client = TestUtil.client(cluster).authority("etcd0").sslContext(b -> b.trustManager(caFile)).build();
    // enable authentication to enforce usage of access token
    ByteSequence role = TestUtil.bytesOf("root");
    client.getAuthClient().roleAdd(role).get();
    client.getAuthClient().userAdd(user, password).get();
    // grant access only to given key
    client.getAuthClient().roleGrantPermission(role, key, key, Permission.Type.READWRITE).get();
    client.getAuthClient().userGrantRole(user, role).get();
    client.getAuthClient().authEnable().get();
    client.close();
}

Example 18 with ByteSequence

use of io.etcd.jetcd.ByteSequence in project jetcd by coreos.

the class ElectionTest method testProposeValueNotBeingLeader.

@Test
public void testProposeValueNotBeingLeader() throws Exception {
    ByteSequence electionName = ByteSequence.from(randomString(), StandardCharsets.UTF_8);
    LeaderKey leaderKey = new LeaderKey(electionName, randomByteSequence(), 1, 1);
    ByteSequence proposal = ByteSequence.from("proposal", StandardCharsets.UTF_8);
    try {
        electionClient.proclaim(leaderKey, proposal).get(OPERATION_TIMEOUT, TimeUnit.SECONDS);
        fail("Cannot proclaim proposal not being a leader");
    } catch (ExecutionException e) {
        assertThat(e.getCause()).isInstanceOf(NotLeaderException.class);
    }
    GetOption getOption = GetOption.newBuilder().isPrefix(true).build();
    List<KeyValue> keys = kvClient.get(electionName, getOption).get().getKvs();
    assertThat(keys).isEmpty();
}

Example 19 with ByteSequence

use of io.etcd.jetcd.ByteSequence in project jetcd by coreos.

the class ElectionTest method testObserveElections.

@Test
public void testObserveElections() throws Exception {
    int electionCount = 3;
    final AtomicInteger electionsSeen = new AtomicInteger(0);
    ByteSequence electionName = ByteSequence.from(randomString(), StandardCharsets.UTF_8);
    electionClient.observe(electionName, new Election.Listener() {

        @Override
        public void onNext(LeaderResponse response) {
            electionsSeen.incrementAndGet();
        }

        @Override
        public void onError(Throwable error) {
        }

        @Override
        public void onCompleted() {
        }
    });
    long leaseId = leaseClient.grant(10).get().getID();
    for (int i = 0; i < electionCount; ++i) {
        ByteSequence proposal = ByteSequence.from(randomString(), StandardCharsets.UTF_8);
        CampaignResponse campaignResponse = electionClient.campaign(electionName, leaseId, proposal).get(OPERATION_TIMEOUT, TimeUnit.SECONDS);
        Thread.sleep(100);
        electionClient.resign(campaignResponse.getLeader()).get(OPERATION_TIMEOUT, TimeUnit.SECONDS);
    }
    TestUtil.waitForCondition(() -> electionsSeen.get() == electionCount, OPERATION_TIMEOUT * 1000, "Observer did not receive expected notifications, got: " + electionsSeen.get());
    leaseClient.revoke(leaseId).get();
}

Example 20 with ByteSequence

use of io.etcd.jetcd.ByteSequence in project jetcd by coreos.

the class ElectionTest method testEmptyElection.

@Test
public void testEmptyElection() throws Exception {
    ByteSequence electionName = ByteSequence.from(randomString(), StandardCharsets.UTF_8);
    try {
        electionClient.leader(electionName).get(OPERATION_TIMEOUT, TimeUnit.SECONDS);
        fail("etcd communicates missing leader with error");
    } catch (ExecutionException e) {
        assertThat(e.getCause()).isInstanceOf(NoLeaderException.class);
    }
}