| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.curator.framework.imps; |
| |
| import static org.junit.jupiter.api.Assertions.assertEquals; |
| import static org.junit.jupiter.api.Assertions.assertNull; |
| import static org.junit.jupiter.api.Assertions.assertTrue; |
| import com.google.common.collect.Queues; |
| import org.apache.curator.framework.CuratorFramework; |
| import org.apache.curator.framework.CuratorFrameworkFactory; |
| import org.apache.curator.framework.state.ConnectionState; |
| import org.apache.curator.framework.state.ConnectionStateListener; |
| import org.apache.curator.retry.RetryOneTime; |
| import org.apache.curator.test.BaseClassForTests; |
| import org.apache.curator.test.compatibility.Timing2; |
| import org.apache.curator.utils.CloseableUtils; |
| import org.apache.zookeeper.KeeperException; |
| import org.apache.zookeeper.WatchedEvent; |
| import org.apache.zookeeper.Watcher; |
| import org.junit.jupiter.api.AfterEach; |
| import org.junit.jupiter.api.BeforeEach; |
| import org.junit.jupiter.api.Test; |
| |
| import java.util.concurrent.BlockingQueue; |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.TimeUnit; |
| |
| public class TestEnabledSessionExpiredState extends BaseClassForTests |
| { |
| private final Timing2 timing = new Timing2(); |
| |
| private CuratorFramework client; |
| private BlockingQueue<ConnectionState> states; |
| |
| @BeforeEach |
| @Override |
| public void setup() throws Exception |
| { |
| super.setup(); |
| |
| client = CuratorFrameworkFactory.builder() |
| .connectString(server.getConnectString()) |
| .connectionTimeoutMs(timing.connection()) |
| .sessionTimeoutMs(timing.session()) |
| .retryPolicy(new RetryOneTime(1)) |
| .build(); |
| client.start(); |
| |
| states = Queues.newLinkedBlockingQueue(); |
| ConnectionStateListener listener = new ConnectionStateListener() |
| { |
| @Override |
| public void stateChanged(CuratorFramework client, ConnectionState newState) |
| { |
| states.add(newState); |
| } |
| }; |
| client.getConnectionStateListenable().addListener(listener); |
| } |
| |
| @AfterEach |
| @Override |
| public void teardown() throws Exception |
| { |
| try |
| { |
| CloseableUtils.closeQuietly(client); |
| } |
| finally |
| { |
| super.teardown(); |
| } |
| } |
| |
| @Test |
| public void testResetCausesLost() throws Exception |
| { |
| assertEquals(states.poll(timing.milliseconds(), TimeUnit.MILLISECONDS), ConnectionState.CONNECTED); |
| client.checkExists().forPath("/"); // establish initial connection |
| |
| client.getZookeeperClient().reset(); |
| assertEquals(states.poll(timing.milliseconds(), TimeUnit.MILLISECONDS), ConnectionState.LOST); |
| assertEquals(states.poll(timing.milliseconds(), TimeUnit.MILLISECONDS), ConnectionState.RECONNECTED); |
| } |
| |
| @Test |
| public void testInjectedWatchedEvent() throws Exception |
| { |
| assertEquals(states.poll(timing.milliseconds(), TimeUnit.MILLISECONDS), ConnectionState.CONNECTED); |
| |
| final CountDownLatch latch = new CountDownLatch(1); |
| Watcher watcher = new Watcher() |
| { |
| @Override |
| public void process(WatchedEvent event) |
| { |
| if ( event.getType() == Event.EventType.None ) |
| { |
| if ( event.getState() == Event.KeeperState.Expired ) |
| { |
| latch.countDown(); |
| } |
| } |
| } |
| }; |
| client.checkExists().usingWatcher(watcher).forPath("/"); |
| server.stop(); |
| assertTrue(timing.forSessionSleep().awaitLatch(latch)); |
| } |
| |
| @Test |
| public void testKillSession() throws Exception |
| { |
| assertEquals(states.poll(timing.milliseconds(), TimeUnit.MILLISECONDS), ConnectionState.CONNECTED); |
| |
| client.getZookeeperClient().getZooKeeper().getTestable().injectSessionExpiration(); |
| |
| assertEquals(states.poll(timing.forSessionSleep().milliseconds(), TimeUnit.MILLISECONDS), ConnectionState.LOST); |
| assertEquals(states.poll(timing.milliseconds(), TimeUnit.MILLISECONDS), ConnectionState.RECONNECTED); |
| } |
| |
| @Test |
| public void testReconnectWithoutExpiration() throws Exception |
| { |
| assertEquals(states.poll(timing.milliseconds(), TimeUnit.MILLISECONDS), ConnectionState.CONNECTED); |
| server.stop(); |
| try |
| { |
| client.checkExists().forPath("/"); // any API call that will invoke the retry policy, etc. |
| } |
| catch ( KeeperException.ConnectionLossException ignore ) |
| { |
| } |
| assertEquals(states.poll(timing.milliseconds(), TimeUnit.MILLISECONDS), ConnectionState.SUSPENDED); |
| server.restart(); |
| client.checkExists().forPath("/"); |
| assertEquals(states.poll(timing.milliseconds(), TimeUnit.MILLISECONDS), ConnectionState.RECONNECTED); |
| } |
| |
| @Test |
| public void testSessionExpirationFromTimeout() throws Exception |
| { |
| assertEquals(states.poll(timing.milliseconds(), TimeUnit.MILLISECONDS), ConnectionState.CONNECTED); |
| server.stop(); |
| assertEquals(states.poll(timing.milliseconds(), TimeUnit.MILLISECONDS), ConnectionState.SUSPENDED); |
| assertEquals(states.poll(timing.forSessionSleep().milliseconds(), TimeUnit.MILLISECONDS), ConnectionState.LOST); |
| } |
| |
| @Test |
| public void testSessionExpirationFromTimeoutWithRestart() throws Exception |
| { |
| assertEquals(states.poll(timing.milliseconds(), TimeUnit.MILLISECONDS), ConnectionState.CONNECTED); |
| server.stop(); |
| timing.forSessionSleep().sleep(); |
| assertEquals(states.poll(timing.milliseconds(), TimeUnit.MILLISECONDS), ConnectionState.SUSPENDED); |
| assertEquals(states.poll(timing.forSessionSleep().milliseconds(), TimeUnit.MILLISECONDS), ConnectionState.LOST); |
| server.restart(); |
| client.checkExists().forPath("/"); |
| assertEquals(states.poll(timing.milliseconds(), TimeUnit.MILLISECONDS), ConnectionState.RECONNECTED); |
| |
| assertNull(states.poll(timing.multiple(.5).milliseconds(), TimeUnit.MILLISECONDS)); // there should be no other events |
| } |
| } |