Examples with ArrayDeque java.util.ArrayDeque used on opensource projects

Example 1 with ArrayDeque

use of java.util.ArrayDeque in project jetty.project by eclipse.

the class PrefaceTest method testClientPrefaceReplySentAfterServerPreface.

@Test
public void testClientPrefaceReplySentAfterServerPreface() throws Exception {
    start(new ServerSessionListener.Adapter() {

        @Override
        public Map<Integer, Integer> onPreface(Session session) {
            Map<Integer, Integer> settings = new HashMap<>();
            settings.put(SettingsFrame.MAX_CONCURRENT_STREAMS, 128);
            return settings;
        }

        @Override
        public void onPing(Session session, PingFrame frame) {
            session.close(ErrorCode.NO_ERROR.code, null, Callback.NOOP);
        }
    });
    ByteBufferPool byteBufferPool = client.getByteBufferPool();
    try (SocketChannel socket = SocketChannel.open()) {
        socket.connect(new InetSocketAddress("localhost", connector.getLocalPort()));
        Generator generator = new Generator(byteBufferPool);
        ByteBufferPool.Lease lease = new ByteBufferPool.Lease(byteBufferPool);
        generator.control(lease, new PrefaceFrame());
        Map<Integer, Integer> clientSettings = new HashMap<>();
        clientSettings.put(SettingsFrame.ENABLE_PUSH, 0);
        generator.control(lease, new SettingsFrame(clientSettings, false));
        // The PING frame just to make sure the client stops reading.
        generator.control(lease, new PingFrame(true));
        List<ByteBuffer> buffers = lease.getByteBuffers();
        socket.write(buffers.toArray(new ByteBuffer[buffers.size()]));
        Queue<SettingsFrame> settings = new ArrayDeque<>();
        Parser parser = new Parser(byteBufferPool, new Parser.Listener.Adapter() {

            @Override
            public void onSettings(SettingsFrame frame) {
                settings.offer(frame);
            }
        }, 4096, 8192);
        ByteBuffer buffer = byteBufferPool.acquire(1024, true);
        while (true) {
            BufferUtil.clearToFill(buffer);
            int read = socket.read(buffer);
            BufferUtil.flipToFlush(buffer, 0);
            if (read < 0)
                break;
            parser.parse(buffer);
        }
        Assert.assertEquals(2, settings.size());
        SettingsFrame frame1 = settings.poll();
        Assert.assertFalse(frame1.isReply());
        SettingsFrame frame2 = settings.poll();
        Assert.assertTrue(frame2.isReply());
    }
}

Example 2 with ArrayDeque

use of java.util.ArrayDeque in project elasticsearch by elastic.

the class ZenDiscoveryUnitTests method testPendingCSQueueIsClearedWhenClusterStatePublished.

public void testPendingCSQueueIsClearedWhenClusterStatePublished() throws Exception {
    ThreadPool threadPool = new TestThreadPool(getClass().getName());
    // randomly make minimum_master_nodes a value higher than we have nodes for, so it will force failure
    int minMasterNodes = randomBoolean() ? 3 : 1;
    Settings settings = Settings.builder().put(DISCOVERY_ZEN_MINIMUM_MASTER_NODES_SETTING.getKey(), Integer.toString(minMasterNodes)).build();
    ArrayDeque<Closeable> toClose = new ArrayDeque<>();
    try {
        final MockTransportService masterTransport = MockTransportService.createNewService(settings, Version.CURRENT, threadPool, null);
        masterTransport.start();
        DiscoveryNode masterNode = masterTransport.getLocalNode();
        toClose.addFirst(masterTransport);
        ClusterState state = ClusterStateCreationUtils.state(masterNode, null, masterNode);
        // build the zen discovery and cluster service
        ClusterService masterClusterService = createClusterService(threadPool, masterNode);
        toClose.addFirst(masterClusterService);
        state = ClusterState.builder(masterClusterService.getClusterName()).nodes(state.nodes()).build();
        setState(masterClusterService, state);
        ZenDiscovery masterZen = buildZenDiscovery(settings, masterTransport, masterClusterService, threadPool);
        toClose.addFirst(masterZen);
        masterTransport.acceptIncomingRequests();
        // inject a pending cluster state
        masterZen.pendingClusterStatesQueue().addPending(ClusterState.builder(new ClusterName("foreign")).build());
        // a new cluster state with a new discovery node (we will test if the cluster state
        // was updated by the presence of this node in NodesFaultDetection)
        ClusterState newState = ClusterState.builder(masterClusterService.state()).incrementVersion().nodes(DiscoveryNodes.builder(masterClusterService.state().nodes()).masterNodeId(masterNode.getId())).build();
        try {
            // publishing a new cluster state
            ClusterChangedEvent clusterChangedEvent = new ClusterChangedEvent("testing", newState, state);
            AssertingAckListener listener = new AssertingAckListener(newState.nodes().getSize() - 1);
            masterZen.publish(clusterChangedEvent, listener);
            listener.await(1, TimeUnit.HOURS);
            // publish was a success, check that queue as cleared
            assertThat(masterZen.pendingClusterStates(), emptyArray());
        } catch (Discovery.FailedToCommitClusterStateException e) {
            // not successful, so the pending queue should stay
            assertThat(masterZen.pendingClusterStates(), arrayWithSize(1));
            assertThat(masterZen.pendingClusterStates()[0].getClusterName().value(), equalTo("foreign"));
        }
    } finally {
        IOUtils.close(toClose);
        terminate(threadPool);
    }
}

Example 3 with ArrayDeque

use of java.util.ArrayDeque in project mapdb by jankotek.

the class ArrayDequeTest method testAdd.

/**
     * add(x) succeeds
     */
public void testAdd() {
    ArrayDeque q = new ArrayDeque();
    assertTrue(q.add(zero));
    assertTrue(q.add(one));
    assertSame(zero, q.peekFirst());
    assertSame(one, q.peekLast());
}

Example 4 with ArrayDeque

use of java.util.ArrayDeque in project mapdb by jankotek.

the class ArrayDequeTest method testAddAll1.

/**
     * addAll(null) throws NPE
     */
public void testAddAll1() {
    ArrayDeque q = new ArrayDeque();
    try {
        q.addAll(null);
        shouldThrow();
    } catch (NullPointerException success) {
    }
}

Example 5 with ArrayDeque

use of java.util.ArrayDeque in project mapdb by jankotek.

the class ArrayDequeTest method testSize.

/**
     * size changes when elements added and removed
     */
public void testSize() {
    ArrayDeque q = populatedDeque(SIZE);
    for (int i = 0; i < SIZE; ++i) {
        assertEquals(SIZE - i, q.size());
        q.removeFirst();
    }
    for (int i = 0; i < SIZE; ++i) {
        assertEquals(i, q.size());
        q.add(new Integer(i));
    }
}