Examples of org.apache.curator.framework.CuratorFramework.checkExists()

Class org.apache.curator.framework.CuratorFramework

Examples of org.apache.curator.framework.CuratorFramework.checkExists()

org.apache.curator.framework.CuratorFramework.checkExists()
Start an exists builder
The builder will return a Stat object as if org.apache.zookeeper.ZooKeeper.exists() were called. Thus, a null means that it does not exist and an actual Stat object means it does exist. @return builder object

    {
        CuratorFramework client = CuratorFrameworkFactory.newClient(server.getConnectString(), 100, 100, new RetryOneTime(1));
        client.start();
        try
        {
            client.checkExists().forPath("/hey");
            client.checkExists().inBackground().forPath("/hey");


            server.stop();


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

View Full Code Here

        CuratorFramework client = CuratorFrameworkFactory.newClient(server.getConnectString(), 100, 100, new RetryOneTime(1));
        client.start();
        try
        {
            client.checkExists().forPath("/hey");
            client.checkExists().inBackground().forPath("/hey");


            server.stop();


            client.checkExists().forPath("/hey");
            Assert.fail();

View Full Code Here

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


            server.stop();


            client.checkExists().forPath("/hey");
            Assert.fail();
        }
        catch ( KeeperException.ConnectionLossException e )
        {
            // correct

View Full Code Here

                );


            server.stop();


            // test foreground retry
            client.checkExists().forPath("/hey");
            Assert.assertTrue(semaphore.tryAcquire(MAX_RETRIES, 10, TimeUnit.SECONDS));


            semaphore.drainPermits();
            retries.set(0);

View Full Code Here

            retries.set(0);


            server.stop();


            // test background retry
            client.checkExists().inBackground().forPath("/hey");
            Assert.assertTrue(semaphore.tryAcquire(MAX_RETRIES, 10, TimeUnit.SECONDS));
        }
        catch ( Throwable e )
        {
            Assert.fail("Error", e);

View Full Code Here

                }
            };


            client.getCuratorListenable().addListener(listener);
            client.create().forPath("/base");
            client.checkExists().inBackground().forPath("/base");


            String      path = queue.poll(10, TimeUnit.SECONDS);
            Assert.assertEquals(path, "/base");


            client.getCuratorListenable().removeListener(listener);

View Full Code Here


            server.stop();
            Assert.assertTrue(timing.awaitLatch(lostLatch));
            try
            {
                client.checkExists().forPath("/");
                Assert.fail("Connection should be down");
            }
            catch ( KeeperException.ConnectionLossException e )
            {
                // expected

View Full Code Here

                    }
                }
            );


            client.create().forPath("/head");
            Assert.assertNotNull(client.checkExists().forPath("/head"));


            CountDownLatch      latch = new CountDownLatch(1);
            client.sync("/head", latch);
            Assert.assertTrue(latch.await(10, TimeUnit.SECONDS));
        }

View Full Code Here

        CuratorFramework client = CuratorFrameworkFactory.newClient(server.getConnectString(), new RetryOneTime(1));
        client.start();
        try
        {
            client.create().forPath("/head");
            Assert.assertNotNull(client.checkExists().forPath("/head"));


            final CountDownLatch      latch = new CountDownLatch(1);
            BackgroundCallback callback = new BackgroundCallback()
            {
                @Override

View Full Code Here

                    }
                }
            );


            client.create().forPath("/head");
            Assert.assertNotNull(client.checkExists().forPath("/head"));


            CountDownLatch      latch = new CountDownLatch(1);
            client.delete().inBackground(latch).forPath("/head");
            Assert.assertTrue(latch.await(10, TimeUnit.SECONDS));
            Assert.assertNull(client.checkExists().forPath("/head"));

View Full Code Here

0 1 2 3 4 5 6 7 8 9

TOP

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.