Package org.apache.curator.test

Examples of org.apache.curator.test.Timing

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public class TestFrameworkEdges extends BaseClassForTests
{
    @Test
    public void connectionLossWithBackgroundTest() throws Exception
    {
        Timing timing = new Timing();
        CuratorFramework client = CuratorFrameworkFactory.newClient(server.getConnectString(), timing.session(), 1, new RetryOneTime(1));
        try
        {
            final CountDownLatch latch = new CountDownLatch(1);
            client.start();
            client.getZookeeperClient().blockUntilConnectedOrTimedOut();
            server.close();
            client.getChildren().inBackground
            (
                new BackgroundCallback()
                {
                    public void processResult(CuratorFramework client, CuratorEvent event) throws Exception
                    {
                        latch.countDown();
                    }
                }
            ).forPath("/");
            Assert.assertTrue(timing.awaitLatch(latch));
        }
        finally
        {
            client.close();
        }
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    }

    @Test
    public void testReconnectAfterLoss() throws Exception
    {
        Timing timing = new Timing();
        CuratorFramework client = CuratorFrameworkFactory.newClient(server.getConnectString(), timing.session(), timing.connection(), new RetryOneTime(1));
        try
        {
            client.start();

            final CountDownLatch lostLatch = new CountDownLatch(1);
            ConnectionStateListener listener = new ConnectionStateListener()
            {
                @Override
                public void stateChanged(CuratorFramework client, ConnectionState newState)
                {
                    if ( newState == ConnectionState.LOST )
                    {
                        lostLatch.countDown();
                    }
                }
            };
            client.getConnectionStateListenable().addListener(listener);

            client.checkExists().forPath("/");

            server.close();

            Assert.assertTrue(timing.awaitLatch(lostLatch));

            try
            {
                client.checkExists().forPath("/");
                Assert.fail();
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    }

    @Test
    public void testBackgroundFailure() throws Exception
    {
        Timing timing = new Timing();
        CuratorFramework client = CuratorFrameworkFactory.newClient(server.getConnectString(), timing.session(), timing.connection(), new RetryOneTime(1));
        client.start();
        try
        {
            final CountDownLatch latch = new CountDownLatch(1);
            client.getConnectionStateListenable().addListener
                (
                    new ConnectionStateListener()
                    {
                        @Override
                        public void stateChanged(CuratorFramework client, ConnectionState newState)
                        {
                            if ( newState == ConnectionState.LOST )
                            {
                                latch.countDown();
                            }
                        }
                    }
                );

            client.checkExists().forPath("/hey");
            client.checkExists().inBackground().forPath("/hey");

            server.stop();

            client.checkExists().inBackground().forPath("/hey");
            Assert.assertTrue(timing.awaitLatch(latch));
        }
        finally
        {
            Closeables.closeQuietly(client);
        }
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public class TestFramework extends BaseClassForTests
{
    @Test
    public void     testConnectionState() throws Exception
    {
        Timing                  timing = new Timing();
        CuratorFramework        client = CuratorFrameworkFactory.newClient(server.getConnectString(), timing.session(), timing.connection(), new RetryOneTime(1));
        try
        {
            final BlockingQueue<ConnectionState>        queue = new LinkedBlockingQueue<ConnectionState>();
            ConnectionStateListener                     listener = new ConnectionStateListener()
            {
                @Override
                public void stateChanged(CuratorFramework client, ConnectionState newState)
                {
                    queue.add(newState);
                }
            };
            client.getConnectionStateListenable().addListener(listener);

            client.start();
            Assert.assertEquals(queue.poll(timing.multiple(4).seconds(), TimeUnit.SECONDS), ConnectionState.CONNECTED);
            server.stop();
            Assert.assertEquals(queue.poll(timing.multiple(4).seconds(), TimeUnit.SECONDS), ConnectionState.SUSPENDED);
            Assert.assertEquals(queue.poll(timing.multiple(4).seconds(), TimeUnit.SECONDS), ConnectionState.LOST);
        }
        finally
        {
            Closeables.closeQuietly(client);
        }
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    }

    @Test
    public void     testCreateACLWithReset() throws Exception
    {
        Timing timing = new Timing();
        CuratorFrameworkFactory.Builder builder = CuratorFrameworkFactory.builder();
        CuratorFramework client = builder
            .connectString(server.getConnectString())
            .sessionTimeoutMs(timing.session())
            .connectionTimeoutMs(timing.connection())
            .authorization("digest", "me:pass".getBytes())
            .retryPolicy(new RetryOneTime(1))
            .build();
        client.start();
        try
        {
            final CountDownLatch lostLatch = new CountDownLatch(1);
            ConnectionStateListener listener = new ConnectionStateListener()
            {
                @Override
                public void stateChanged(CuratorFramework client, ConnectionState newState)
                {
                    if ( newState == ConnectionState.LOST )
                    {
                        lostLatch.countDown();
                    }
                }
            };
            client.getConnectionStateListenable().addListener(listener);

            ACL acl = new ACL(ZooDefs.Perms.WRITE, ZooDefs.Ids.AUTH_IDS);
            List<ACL> aclList = Lists.newArrayList(acl);
            client.create().withACL(aclList).forPath("/test", "test".getBytes());

            server.stop();
            Assert.assertTrue(timing.awaitLatch(lostLatch));
            try
            {
                client.checkExists().forPath("/");
                Assert.fail("Connection should be down");
            }
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    public void testRetries() throws Exception
    {
        final int SLEEP = 1000;
        final int TIMES = 5;

        Timing timing = new Timing();
        CuratorFramework client = CuratorFrameworkFactory.newClient(server.getConnectString(), timing.session(), timing.connection(), new RetryNTimes(TIMES, SLEEP));
        try
        {
            client.start();
            client.getZookeeperClient().blockUntilConnectedOrTimedOut();
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    }

    @Test
    public void testBasic() throws Exception
    {
        Timing timing = new Timing();
        CuratorFramework client = CuratorFrameworkFactory.newClient(server.getConnectString(), timing.session(), timing.connection(), new RetryOneTime(1));
        try
        {
            client.start();

            final CountDownLatch latch = new CountDownLatch(3);
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    }

    @Test
    public void     testWithNamespaceAndLostSession() throws Exception
    {
        Timing                  timing = new Timing();
        CuratorFramework        client = CuratorFrameworkFactory.builder().connectString(server.getConnectString())
            .sessionTimeoutMs(timing.session())
            .connectionTimeoutMs(timing.connection())
            .retryPolicy(new ExponentialBackoffRetry(100, 3))
            .namespace("aisa")
            .build();
        try
        {
            client.start();

            client.create().forPath("/test-me");

            final CountDownLatch            latch = new CountDownLatch(1);
            final Semaphore                 semaphore = new Semaphore(0);
            ConnectionStateListener         listener = new ConnectionStateListener()
            {
                @Override
                public void stateChanged(CuratorFramework client, ConnectionState newState)
                {
                    if ( (newState == ConnectionState.LOST) || (newState == ConnectionState.SUSPENDED) )
                    {
                        semaphore.release();
                    }
                    else if ( newState == ConnectionState.RECONNECTED )
                    {
                        latch.countDown();
                    }
                }
            };
            client.getConnectionStateListenable().addListener(listener);
            server.stop();

            Assert.assertTrue(timing.acquireSemaphore(semaphore));
            try
            {
                client.delete().guaranteed().forPath("/test-me");
                Assert.fail();
            }
            catch ( KeeperException.ConnectionLossException e )
            {
                // expected
            }
            Assert.assertTrue(timing.acquireSemaphore(semaphore));

            timing.sleepABit();

            server.restart();
            Assert.assertTrue(timing.awaitLatch(latch));

            timing.sleepABit();

            Assert.assertNull(client.checkExists().forPath("/test-me"));
        }
        finally
        {
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    }

    @Test
    public void     testWithNamespaceAndLostSessionAlt() throws Exception
    {
        Timing                  timing = new Timing();
        CuratorFramework        client = CuratorFrameworkFactory.builder().connectString(server.getConnectString())
            .sessionTimeoutMs(timing.session())
            .connectionTimeoutMs(timing.connection())
            .retryPolicy(new ExponentialBackoffRetry(100, 3))
            .build();
        try
        {
            client.start();

            CuratorFramework        namespaceClient = client.usingNamespace("foo");
            namespaceClient.create().forPath("/test-me");

            final CountDownLatch            latch = new CountDownLatch(1);
            final Semaphore                 semaphore = new Semaphore(0);
            ConnectionStateListener         listener = new ConnectionStateListener()
            {
                @Override
                public void stateChanged(CuratorFramework client, ConnectionState newState)
                {
                    if ( (newState == ConnectionState.LOST) || (newState == ConnectionState.SUSPENDED) )
                    {
                        semaphore.release();
                    }
                    else if ( newState == ConnectionState.RECONNECTED )
                    {
                        latch.countDown();
                    }
                }
            };
            namespaceClient.getConnectionStateListenable().addListener(listener);
            server.stop();

            Assert.assertTrue(timing.acquireSemaphore(semaphore));
            try
            {
                namespaceClient.delete().guaranteed().forPath("/test-me");
                Assert.fail();
            }
            catch ( KeeperException.ConnectionLossException e )
            {
                // expected
            }
            Assert.assertTrue(timing.acquireSemaphore(semaphore));

            timing.sleepABit();

            server.restart();
            Assert.assertTrue(timing.awaitLatch(latch));

            timing.sleepABit();

            Assert.assertNull(namespaceClient.checkExists().forPath("/test-me"));
        }
        finally
        {
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    @Test
    public void     testBasic() throws Exception
    {
        final String PATH = "/one/two/three";

        Timing                          timing = new Timing();
        CuratorFrameworkFactory.Builder builder = CuratorFrameworkFactory.builder();
        builder.connectString(server.getConnectString()).retryPolicy(new RetryOneTime(1)).connectionTimeoutMs(timing.connection()).sessionTimeoutMs(timing.session());
        CuratorFrameworkImpl            client = new CuratorFrameworkImpl(builder);
        client.start();
        try
        {
            client.create().creatingParentsIfNeeded().forPath(PATH);
            Assert.assertNotNull(client.checkExists().forPath(PATH));

            server.stop(); // cause the next delete to fail
            try
            {
                client.delete().forPath(PATH);
                Assert.fail();
            }
            catch ( KeeperException.ConnectionLossException e )
            {
                // expected
            }
           
            server.restart();
            Assert.assertNotNull(client.checkExists().forPath(PATH));

            server.stop(); // cause the next delete to fail
            try
            {
                client.delete().guaranteed().forPath(PATH);
                Assert.fail();
            }
            catch ( KeeperException.ConnectionLossException e )
            {
                // expected
            }

            server.restart();

            final int       TRIES = 5;
            for ( int i = 0; i < TRIES; ++i )
            {
                if ( client.checkExists().forPath(PATH) != null )
                {
                    timing.sleepABit();
                }
            }
            Assert.assertNull(client.checkExists().forPath(PATH));
        }
        finally
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