| /** |
| * 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.client; |
| |
| import org.apache.curator.framework.CuratorFramework; |
| import org.apache.curator.framework.CuratorFrameworkFactory; |
| import org.apache.curator.framework.recipes.leader.LeaderSelector; |
| import org.apache.curator.framework.recipes.leader.LeaderSelectorListener; |
| import org.apache.curator.framework.recipes.leader.LeaderSelectorListenerAdapter; |
| 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.TestingServer; |
| import org.apache.curator.test.Timing; |
| import org.apache.curator.utils.CloseableUtils; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| import org.testng.Assert; |
| import org.testng.annotations.BeforeMethod; |
| import org.testng.annotations.Test; |
| |
| public class TestResetConnectionWithBackgroundFailure extends BaseClassForTests |
| { |
| private final Logger log = LoggerFactory.getLogger(getClass()); |
| |
| @BeforeMethod |
| @Override |
| public void setup() throws Exception |
| { |
| super.setup(); |
| } |
| |
| @Test |
| public void testConnectionStateListener() throws Exception |
| { |
| server.close(); |
| |
| final StringBuilder listenerSequence = new StringBuilder(); |
| LeaderSelector selector = null; |
| Timing timing = new Timing(); |
| CuratorFramework client = CuratorFrameworkFactory.newClient(server.getConnectString(), timing.session(), timing.connection(), new RetryOneTime(100)); |
| try |
| { |
| client.start(); |
| timing.sleepABit(); |
| |
| LeaderSelectorListener listenerLeader = new LeaderSelectorListenerAdapter() |
| { |
| @Override |
| public void takeLeadership(CuratorFramework client) throws Exception |
| { |
| Thread.currentThread().join(); |
| } |
| }; |
| selector = new LeaderSelector(client, "/leader", listenerLeader); |
| selector.autoRequeue(); |
| selector.start(); |
| |
| ConnectionStateListener listener1 = new ConnectionStateListener() |
| { |
| @Override |
| public void stateChanged(CuratorFramework client, ConnectionState newState) |
| { |
| listenerSequence.append("-").append(newState); |
| } |
| }; |
| |
| client.getConnectionStateListenable().addListener(listener1); |
| log.debug("Starting ZK server"); |
| server = new TestingServer(server.getPort()); |
| timing.forWaiting().sleepABit(); |
| |
| log.debug("Stopping ZK server"); |
| server.close(); |
| timing.forWaiting().sleepABit(); |
| |
| log.debug("Starting ZK server"); |
| server = new TestingServer(server.getPort()); |
| timing.forWaiting().sleepABit(); |
| |
| log.debug("Stopping ZK server"); |
| server.close(); |
| timing.forWaiting().sleepABit(); |
| |
| Assert.assertEquals(listenerSequence.toString(), "-CONNECTED-SUSPENDED-LOST-RECONNECTED-SUSPENDED-LOST"); |
| } |
| finally |
| { |
| CloseableUtils.closeQuietly(selector); |
| CloseableUtils.closeQuietly(client); |
| } |
| } |
| |
| } |