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


            client.close();
            client = CuratorFrameworkFactory.newClient(server.getConnectString(), new RetryOneTime(1));
            client.start();


            stat = client.checkExists().forPath(realPath);
            Assert.assertNull(stat);
        }
        finally
        {
            client.close();

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            catch ( KeeperException.BadVersionException correct )
            {
                // correct
            }
            
            Assert.assertNull(client.checkExists().forPath("/bar"));
        }
        finally
        {
            client.close();
        }

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                .and()
                    .delete().forPath("/foo/bar")
                .and()
                    .commit();


            Assert.assertTrue(client.checkExists().forPath("/foo") != null);
            Assert.assertTrue(client.usingNamespace(null).checkExists().forPath("/galt/foo") != null);
            Assert.assertEquals(client.getData().forPath("/foo"), "two".getBytes());
            Assert.assertTrue(client.checkExists().forPath("/foo/bar") == null);


            CuratorTransactionResult    ephemeralResult = Iterables.find(results, CuratorTransactionResult.ofTypeAndPath(OperationType.CREATE, "/test-"));

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                    .commit();


            Assert.assertTrue(client.checkExists().forPath("/foo") != null);
            Assert.assertTrue(client.usingNamespace(null).checkExists().forPath("/galt/foo") != null);
            Assert.assertEquals(client.getData().forPath("/foo"), "two".getBytes());
            Assert.assertTrue(client.checkExists().forPath("/foo/bar") == null);


            CuratorTransactionResult    ephemeralResult = Iterables.find(results, CuratorTransactionResult.ofTypeAndPath(OperationType.CREATE, "/test-"));
            Assert.assertNotNull(ephemeralResult);
            Assert.assertNotEquals(ephemeralResult.getResultPath(), "/test-");
            Assert.assertTrue(ephemeralResult.getResultPath().startsWith("/test-"));

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                .and()
                    .create().forPath("/foo/bar", "snafu".getBytes())
                .and()
                    .commit();


            Assert.assertTrue(client.checkExists().forPath("/foo/bar") != null);
            Assert.assertEquals(client.getData().forPath("/foo/bar"), "snafu".getBytes());


            CuratorTransactionResult    fooResult = Iterables.find(results, CuratorTransactionResult.ofTypeAndPath(OperationType.CREATE, "/foo"));
            CuratorTransactionResult    fooBarResult = Iterables.find(results, CuratorTransactionResult.ofTypeAndPath(OperationType.CREATE, "/foo/bar"));
            Assert.assertNotNull(fooResult);

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            client.start();


            client.create().forPath("/one");
            Assert.assertNotNull(client.getZookeeperClient().getZooKeeper().exists("/one", false));


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

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            Assert.assertNotNull(client.getZookeeperClient().getZooKeeper().exists("/one", false));


            Assert.assertNotNull(client.checkExists().forPath("/"));
            try
            {
                client.checkExists().forPath("");
                Assert.fail("IllegalArgumentException expected");
            }
            catch ( IllegalArgumentException expected )
            {
            }

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        {
            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 )

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                    }
                }
            );
            client.start();


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


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

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


            timing.sleepABit();


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

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