Package org.apache.curator.framework.recipes.shared

Examples of org.apache.curator.framework.recipes.shared.SharedCount

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        CuratorFramework client = CuratorFrameworkFactory.newClient(server.getConnectString(), timing.session(), timing.connection(), new RetryOneTime(1));
        try
        {
            client.start();

            final SharedCount count = new SharedCount(client, "/foo/count", 1);
            count.start();

            final InterProcessSemaphoreV2 semaphore = new InterProcessSemaphoreV2(client, "/test", count);

            ExecutorService service = Executors.newCachedThreadPool();

            final CountDownLatch latch = new CountDownLatch(1);
            Future<Object> future1 = service.submit
                (
                    new Callable<Object>()
                    {
                        @Override
                        public Object call() throws Exception
                        {
                            Lease lease = semaphore.acquire(timing.seconds(), TimeUnit.SECONDS);
                            Assert.assertNotNull(lease);
                            latch.countDown();
                            lease = semaphore.acquire(timing.forWaiting().seconds(), TimeUnit.SECONDS);
                            Assert.assertNotNull(lease);
                            return null;
                        }
                    }
                );
            Future<Object> future2 = service.submit
                (
                    new Callable<Object>()
                    {
                        @Override
                        public Object call() throws Exception
                        {
                            Assert.assertTrue(latch.await(timing.forWaiting().seconds(), TimeUnit.SECONDS));
                            timing.sleepABit(); // make sure second acquire is waiting
                            Assert.assertTrue(count.trySetCount(2));
                            return null;
                        }
                    }
                );
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        CuratorFramework    client = CuratorFrameworkFactory.newClient(server.getConnectString(), timing.session(), timing.connection(), new RetryOneTime(1));
        try
        {
            client.start();

            final SharedCount             count = new SharedCount(client, "/foo/count", 1);
            count.start();

            final InterProcessSemaphoreV2   semaphore = new InterProcessSemaphoreV2(client, "/test", count);

            ExecutorService     service = Executors.newCachedThreadPool();

            final CountDownLatch    latch = new CountDownLatch(1);
            Future<Object>          future1 = service.submit
                (
                    new Callable<Object>()
                    {
                        @Override
                        public Object call() throws Exception
                        {
                            Lease lease = semaphore.acquire(timing.seconds(), TimeUnit.SECONDS);
                            Assert.assertNotNull(lease);
                            latch.countDown();
                            lease = semaphore.acquire(timing.seconds(), TimeUnit.SECONDS);
                            Assert.assertNotNull(lease);
                            return null;
                        }
                    }
                );
            Future<Object>          future2 = service.submit
            (
                new Callable<Object>()
                {
                    @Override
                    public Object call() throws Exception
                    {
                        Assert.assertTrue(latch.await(timing.seconds(), TimeUnit.SECONDS));
                        timing.sleepABit(); // make sure second acquire is waiting
                        Assert.assertTrue(count.trySetCount(2));
                        return null;
                    }
                }
            );
View Full Code Here
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        CuratorFramework client = CuratorFrameworkFactory.newClient(server.getConnectString(), timing.session(), timing.connection(), new RetryOneTime(1));
        try
        {
            client.start();

            final SharedCount count = new SharedCount(client, "/foo/count", 1);
            count.start();

            final InterProcessSemaphoreV2 semaphore = new InterProcessSemaphoreV2(client, "/test", count);

            ExecutorService service = Executors.newCachedThreadPool();

            final CountDownLatch latch = new CountDownLatch(1);
            Future<Object> future1 = service.submit
                (
                    new Callable<Object>()
                    {
                        @Override
                        public Object call() throws Exception
                        {
                            Lease lease = semaphore.acquire(timing.seconds(), TimeUnit.SECONDS);
                            Assert.assertNotNull(lease);
                            latch.countDown();
                            lease = semaphore.acquire(timing.forWaiting().seconds(), TimeUnit.SECONDS);
                            Assert.assertNotNull(lease);
                            return null;
                        }
                    }
                );
            Future<Object> future2 = service.submit
                (
                    new Callable<Object>()
                    {
                        @Override
                        public Object call() throws Exception
                        {
                            Assert.assertTrue(latch.await(timing.forWaiting().seconds(), TimeUnit.SECONDS));
                            timing.sleepABit(); // make sure second acquire is waiting
                            Assert.assertTrue(count.trySetCount(2));
                            return null;
                        }
                    }
                );
View Full Code Here
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        CuratorFramework client = CuratorFrameworkFactory.newClient(server.getConnectString(), timing.session(), timing.connection(), new RetryOneTime(1));
        try
        {
            client.start();

            final SharedCount count = new SharedCount(client, "/foo/count", 1);
            count.start();

            final InterProcessSemaphoreV2 semaphore = new InterProcessSemaphoreV2(client, "/test", count);

            ExecutorService service = Executors.newCachedThreadPool();

            final CountDownLatch latch1 = new CountDownLatch(1);
            final CountDownLatch latch2 = new CountDownLatch(1);
            Future<Object> future1 = service.submit
                (
                    new Callable<Object>()
                    {
                        @Override
                        public Object call() throws Exception
                        {
                            Lease lease = semaphore.acquire(timing.seconds(), TimeUnit.SECONDS);
                            Assert.assertNotNull(lease);
                            latch1.countDown();
                            lease = semaphore.acquire(timing.forWaiting().seconds(), TimeUnit.SECONDS);
                            Assert.assertNotNull(lease);
                            latch2.countDown();
                            return null;
                        }
                    }
                );
            Future<Object> future2 = service.submit
                (
                    new Callable<Object>()
                    {
                        @Override
                        public Object call() throws Exception
                        {
                            Assert.assertTrue(latch1.await(timing.forWaiting().seconds(), TimeUnit.SECONDS));
                            timing.sleepABit(); // make sure second acquire is waiting
                            Assert.assertTrue(count.trySetCount(2));
                            //Make sure second acquire takes less than full waiting time:
                            timing.sleepABit();
                            Assert.assertTrue(latch2.await(0, TimeUnit.SECONDS));
                            return null;
                        }
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        CuratorFramework client = CuratorFrameworkFactory.newClient(server.getConnectString(), timing.session(), timing.connection(), new RetryOneTime(1));
        try
        {
            client.start();

            final SharedCount count = new SharedCount(client, "/foo/count", 1);
            count.start();

            final InterProcessSemaphoreV2 semaphore = new InterProcessSemaphoreV2(client, "/test", count);

            ExecutorService service = Executors.newCachedThreadPool();

            final CountDownLatch latch1 = new CountDownLatch(1);
            final CountDownLatch latch2 = new CountDownLatch(1);
            Future<Object> future1 = service.submit
                (
                    new Callable<Object>()
                    {
                        @Override
                        public Object call() throws Exception
                        {
                            Lease lease = semaphore.acquire(timing.seconds(), TimeUnit.SECONDS);
                            Assert.assertNotNull(lease);
                            latch1.countDown();
                            lease = semaphore.acquire(timing.forWaiting().seconds(), TimeUnit.SECONDS);
                            Assert.assertNotNull(lease);
                            latch2.countDown();
                            return null;
                        }
                    }
                );
            Future<Object> future2 = service.submit
                (
                    new Callable<Object>()
                    {
                        @Override
                        public Object call() throws Exception
                        {
                            Assert.assertTrue(latch1.await(timing.forWaiting().seconds(), TimeUnit.SECONDS));
                            timing.sleepABit(); // make sure second acquire is waiting
                            Assert.assertTrue(count.trySetCount(2));
                            //Make sure second acquire takes less than full waiting time:
                            timing.sleepABit();
                            Assert.assertTrue(latch2.await(0, TimeUnit.SECONDS));
                            return null;
                        }
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    @Override
    public void init(ServletConfig config) throws ServletException {
        super.init(config);
        try {
            counter = new SharedCount(curator, ZkPath.GIT_TRIGGER.getPath(), 0);
            counter.start();
        } catch (Exception ex) {
            LOGGER.error("Error starting SharedCount", ex);
            throw new ServletException("Error starting SharedCount", ex);
        }
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                }
            }, 1000, gitRemotePollInterval, TimeUnit.MILLISECONDS);
        }

        LOGGER.info("Using ZooKeeper SharedCount to react when master git repo is changed, so we can do a git pull to the local git repo.");
        counter = new SharedCount(curator.get(), ZkPath.GIT_TRIGGER.getPath(), 0);
        counter.addListener(new SharedCountListener() {
            @Override
            public void countHasChanged(final SharedCountReader sharedCountReader, final int value) throws Exception {
               threadPool.submit(new Runnable() {
                   @Override
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Related Classes of org.apache.curator.framework.recipes.shared.SharedCount

  • io.fabric8.git.http.FabricGitServlet
  • io.fabric8.git.internal.GitDataStoreImpl
  • org.apache.curator.framework.recipes.locks.TestInterProcessSemaphore
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