Example usage for org.apache.zookeeper.server.quorum.flexible QuorumVerifier getVersion

Introduction

In this page you can find the example usage for org.apache.zookeeper.server.quorum.flexible QuorumVerifier getVersion.

Prototype

long getVersion();

Source Link

Usage

From source file:org.apache.curator.framework.imps.TestReconfiguration.java

License:Apache License

@Test
public void testAdd() throws Exception {
    try (CuratorFramework client = newClient()) {
        client.start();//from  w  ww  . j ava  2s .c  o m

        QuorumVerifier oldConfig = toQuorumVerifier(client.getConfig().forEnsemble());
        assertConfig(oldConfig, cluster.getInstances());

        CountDownLatch latch = setChangeWaiter(client);
        try (TestingCluster newCluster = new TestingCluster(TestingCluster.makeSpecs(1, false))) {
            newCluster.start();

            client.reconfig().joining(toReconfigSpec(newCluster.getInstances()))
                    .fromConfig(oldConfig.getVersion()).forEnsemble();

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

            byte[] newConfigData = client.getConfig().forEnsemble();
            QuorumVerifier newConfig = toQuorumVerifier(newConfigData);
            List<InstanceSpec> newInstances = Lists.newArrayList(cluster.getInstances());
            newInstances.addAll(newCluster.getInstances());
            assertConfig(newConfig, newInstances);
            Assert.assertEquals(EnsembleTracker.configToConnectionString(newConfig),
                    ensembleProvider.getConnectionString());
        }
    }
}

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From source file:org.apache.curator.framework.imps.TestReconfiguration.java

License:Apache License

@Test
public void testAddAsync() throws Exception {
    try (CuratorFramework client = newClient()) {
        client.start();//from   w  w  w.j  a  v  a2s.  c  om

        QuorumVerifier oldConfig = toQuorumVerifier(client.getConfig().forEnsemble());
        assertConfig(oldConfig, cluster.getInstances());

        CountDownLatch latch = setChangeWaiter(client);
        try (TestingCluster newCluster = new TestingCluster(TestingCluster.makeSpecs(1, false))) {
            newCluster.start();

            final CountDownLatch callbackLatch = new CountDownLatch(1);
            BackgroundCallback callback = new BackgroundCallback() {
                @Override
                public void processResult(CuratorFramework client, CuratorEvent event) throws Exception {
                    if (event.getType() == CuratorEventType.RECONFIG) {
                        callbackLatch.countDown();
                    }
                }
            };
            client.reconfig().inBackground(callback).joining(toReconfigSpec(newCluster.getInstances()))
                    .fromConfig(oldConfig.getVersion()).forEnsemble();

            Assert.assertTrue(timing.awaitLatch(callbackLatch));
            Assert.assertTrue(timing.awaitLatch(latch));

            byte[] newConfigData = client.getConfig().forEnsemble();
            QuorumVerifier newConfig = toQuorumVerifier(newConfigData);
            List<InstanceSpec> newInstances = Lists.newArrayList(cluster.getInstances());
            newInstances.addAll(newCluster.getInstances());
            assertConfig(newConfig, newInstances);
            Assert.assertEquals(EnsembleTracker.configToConnectionString(newConfig),
                    ensembleProvider.getConnectionString());
        }
    }
}

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From source file:org.apache.curator.framework.imps.TestReconfiguration.java

License:Apache License

@Test
public void testAddAndRemove() throws Exception {
    try (CuratorFramework client = newClient()) {
        client.start();/*from  www .j a v a2s .  co m*/

        QuorumVerifier oldConfig = toQuorumVerifier(client.getConfig().forEnsemble());
        assertConfig(oldConfig, cluster.getInstances());

        CountDownLatch latch = setChangeWaiter(client);

        try (TestingCluster newCluster = new TestingCluster(TestingCluster.makeSpecs(1, false))) {
            newCluster.start();

            Collection<InstanceSpec> oldInstances = cluster.getInstances();
            InstanceSpec us = cluster.findConnectionInstance(client.getZookeeperClient().getZooKeeper());
            InstanceSpec removeSpec = oldInstances.iterator().next();
            if (us.equals(removeSpec)) {
                Iterator<InstanceSpec> iterator = oldInstances.iterator();
                iterator.next();
                removeSpec = iterator.next();
            }

            Collection<InstanceSpec> instances = newCluster.getInstances();
            client.reconfig().leaving(Integer.toString(removeSpec.getServerId()))
                    .joining(toReconfigSpec(instances)).fromConfig(oldConfig.getVersion()).forEnsemble();

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

            byte[] newConfigData = client.getConfig().forEnsemble();
            QuorumVerifier newConfig = toQuorumVerifier(newConfigData);
            ArrayList<InstanceSpec> newInstances = Lists.newArrayList(oldInstances);
            newInstances.addAll(instances);
            newInstances.remove(removeSpec);
            assertConfig(newConfig, newInstances);
            Assert.assertEquals(EnsembleTracker.configToConnectionString(newConfig),
                    ensembleProvider.getConnectionString());
        }
    }
}

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