Examples of Timing

cc.mallet.util.Timing
A class for timing things. Originally inspired by the Timing class in the Stanford NLP cade, but completely rewritten.
Created: Dec 30, 2004 @author com.bluesoft.util.metrics.core.Timing
@author danap
com.netflix.curator.test.Timing
edu.stanford.nlp.util.Timing
A class for measuring how long things take. For backward compatibility, this class contains static methods, but the preferred usage is to instantiate a Timing object and use instance methods.
To use, call {@link #startTime()} before running the code inquestion. Call {@link #tick()} to print an intermediate update, and {@link #endTime()} tofinish the timing and print the result. You can optionally pass a descriptive string and PrintStream to tick and endTime for more control over what gets printed where.

Example: time reading in a big file and transforming it:

Timing.startTime(); String bigFileContents = IOUtils.slurpFile(bigFile); Timing.tick("read in big file", System.err); String output = costlyTransform(bigFileContents); Timing.endTime("transformed big file", System.err);
@author Bill MacCartney
music.ui.panels.Timing
org.apache.curator.test.Timing
Utility to get various testing times
org.persvr.data.Method.Timing

Examples of org.apache.curator.test.Timing

    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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Examples of org.apache.curator.test.Timing

    }


    @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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Examples of org.apache.curator.test.Timing

    }


    @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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Examples of org.apache.curator.test.Timing

    }


    @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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Examples of org.apache.curator.test.Timing

    @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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Examples of org.apache.curator.test.Timing

    }


    @Test
    public void testConnectionStateNewClient() throws Exception
    {
        Timing timing = new Timing();
        TestingCluster cluster = new TestingCluster(3);
        CuratorFramework client = null;
        try
        {
            cluster.start();


            client = CuratorFrameworkFactory.newClient(cluster.getConnectString(), timing.session(), timing.connection(), new RetryOneTime(100));
            client.start();
            client.checkExists().forPath("/");
            client.close();
            client = null;


            Iterator<InstanceSpec> iterator = cluster.getInstances().iterator();
            for ( int i = 0; i < 2; ++i )
            {
                cluster.killServer(iterator.next());
            }


            client = CuratorFrameworkFactory.builder()
                .connectString(cluster.getConnectString())
                .sessionTimeoutMs(timing.session())
                .connectionTimeoutMs(timing.connection())
                .retryPolicy(new RetryNTimes(3, timing.milliseconds()))
                .canBeReadOnly(true)
                .build();


            final BlockingQueue<ConnectionState> states = Queues.newLinkedBlockingQueue();
            client.getConnectionStateListenable().addListener
            (
                new ConnectionStateListener()
                {
                    @Override
                    public void stateChanged(CuratorFramework client, ConnectionState newState)
                    {
                        states.add(newState);
                    }
                }
            );
            client.start();


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


            ConnectionState state = states.poll(timing.forWaiting().milliseconds(), TimeUnit.MILLISECONDS);
            Assert.assertEquals(state, ConnectionState.READ_ONLY);
        }
        finally
        {
            CloseableUtils.closeQuietly(client);

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Examples of org.apache.curator.test.Timing

    }


    @Test
    public void testReadOnly() throws Exception
    {
        Timing timing = new Timing();


        CuratorFramework client = null;
        TestingCluster cluster = new TestingCluster(2);
        try
        {
            cluster.start();


            client = CuratorFrameworkFactory.builder().connectString(cluster.getConnectString()).canBeReadOnly(true).connectionTimeoutMs(timing.connection()).sessionTimeoutMs(timing.session()).retryPolicy(new ExponentialBackoffRetry(100, 3)).build();
            client.start();


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


            final CountDownLatch readOnlyLatch = new CountDownLatch(1);
            final CountDownLatch reconnectedLatch = new CountDownLatch(1);
            ConnectionStateListener listener = new ConnectionStateListener()
            {
                @Override
                public void stateChanged(CuratorFramework client, ConnectionState newState)
                {
                    if ( newState == ConnectionState.READ_ONLY )
                    {
                        readOnlyLatch.countDown();
                    }
                    else if ( newState == ConnectionState.RECONNECTED )
                    {
                        reconnectedLatch.countDown();
                    }
                }
            };
            client.getConnectionStateListenable().addListener(listener);


            InstanceSpec ourInstance = cluster.findConnectionInstance(client.getZookeeperClient().getZooKeeper());
            Iterator<InstanceSpec> iterator = cluster.getInstances().iterator();
            InstanceSpec killInstance = iterator.next();
            if ( killInstance.equals(ourInstance) )
            {
                killInstance = iterator.next(); // kill the instance we're not connected to
            }
            cluster.killServer(killInstance);


            Assert.assertEquals(reconnectedLatch.getCount(), 1);
            Assert.assertTrue(timing.awaitLatch(readOnlyLatch));


            Assert.assertEquals(reconnectedLatch.getCount(), 1);
            cluster.restartServer(killInstance);
            Assert.assertTrue(timing.awaitLatch(reconnectedLatch));
        }
        finally
        {
            CloseableUtils.closeQuietly(client);
            CloseableUtils.closeQuietly(cluster);

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Examples of org.apache.curator.test.Timing


    // test Issue 27 using new rebuild() method
    @Test
    public void testIssue27Alt() throws Exception
    {
        Timing timing = new Timing();
        CuratorFramework client = CuratorFrameworkFactory.newClient(server.getConnectString(), timing.session(), timing.connection(), new RetryOneTime(1));
        client.start();
        try
        {
            client.create().forPath("/base");
            client.create().forPath("/base/a");
            client.create().forPath("/base/b");
            client.create().forPath("/base/c");


            client.getChildren().forPath("/base");


            final List<PathChildrenCacheEvent.Type> events = Lists.newArrayList();
            final Semaphore semaphore = new Semaphore(0);
            PathChildrenCache cache = new PathChildrenCache(client, "/base", true);
            cache.getListenable().addListener
                (
                    new PathChildrenCacheListener()
                    {
                        @Override
                        public void childEvent(CuratorFramework client, PathChildrenCacheEvent event) throws Exception
                        {
                            events.add(event.getType());
                            semaphore.release();
                        }
                    }
                );
            cache.start(PathChildrenCache.StartMode.BUILD_INITIAL_CACHE);


            client.delete().forPath("/base/a");
            Assert.assertTrue(timing.acquireSemaphore(semaphore, 1));


            client.create().forPath("/base/a");
            Assert.assertTrue(timing.acquireSemaphore(semaphore, 1));


            List<PathChildrenCacheEvent.Type> expected = Lists.newArrayList
                (
                    PathChildrenCacheEvent.Type.CHILD_REMOVED,
                    PathChildrenCacheEvent.Type.CHILD_ADDED

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Examples of org.apache.curator.test.Timing

    }


    @Test
    public void testKilledSession() throws Exception
    {
        Timing timing = new Timing();
        CuratorFramework client = null;
        try
        {
            client = CuratorFrameworkFactory.newClient(server.getConnectString(), timing.session(), timing.connection(), new RetryOneTime(1));
            client.start();
            client.create().forPath("/test");


            PathChildrenCache cache = new PathChildrenCache(client, "/test", true);
            cache.start();


            final CountDownLatch childAddedLatch = new CountDownLatch(1);
            final CountDownLatch lostLatch = new CountDownLatch(1);
            final CountDownLatch reconnectedLatch = new CountDownLatch(1);
            final CountDownLatch removedLatch = new CountDownLatch(1);
            cache.getListenable().addListener
                (
                    new PathChildrenCacheListener()
                    {
                        @Override
                        public void childEvent(CuratorFramework client, PathChildrenCacheEvent event) throws Exception
                        {
                            if ( event.getType() == PathChildrenCacheEvent.Type.CHILD_ADDED )
                            {
                                childAddedLatch.countDown();
                            }
                            else if ( event.getType() == PathChildrenCacheEvent.Type.CONNECTION_LOST )
                            {
                                lostLatch.countDown();
                            }
                            else if ( event.getType() == PathChildrenCacheEvent.Type.CONNECTION_RECONNECTED )
                            {
                                reconnectedLatch.countDown();
                            }
                            else if ( event.getType() == PathChildrenCacheEvent.Type.CHILD_REMOVED )
                            {
                                removedLatch.countDown();
                            }
                        }
                    }
                );


            client.create().withMode(CreateMode.EPHEMERAL).forPath("/test/me", "data".getBytes());
            Assert.assertTrue(timing.awaitLatch(childAddedLatch));


            KillSession.kill(client.getZookeeperClient().getZooKeeper(), server.getConnectString());
            Assert.assertTrue(timing.awaitLatch(lostLatch));
            Assert.assertTrue(timing.awaitLatch(reconnectedLatch));
            Assert.assertTrue(timing.awaitLatch(removedLatch));
        }
        finally
        {
            CloseableUtils.closeQuietly(client);
        }

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Examples of org.apache.curator.test.Timing

    }


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

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