| /** |
| * 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; |
| |
| import org.apache.curator.test.BaseClassForTests; |
| import org.apache.curator.utils.CloseableUtils; |
| import org.apache.curator.retry.RetryOneTime; |
| import org.apache.curator.test.KillSession; |
| import org.apache.curator.test.Timing; |
| import org.testng.Assert; |
| import org.testng.annotations.Test; |
| import java.util.concurrent.Callable; |
| import java.util.concurrent.atomic.AtomicBoolean; |
| |
| public class TestSessionFailRetryLoop extends BaseClassForTests |
| { |
| @Test |
| public void testRetry() throws Exception |
| { |
| Timing timing = new Timing(); |
| final CuratorZookeeperClient client = new CuratorZookeeperClient(server.getConnectString(), timing.session(), timing.connection(), null, new RetryOneTime(1)); |
| SessionFailRetryLoop retryLoop = client.newSessionFailRetryLoop(SessionFailRetryLoop.Mode.RETRY); |
| retryLoop.start(); |
| try |
| { |
| client.start(); |
| final AtomicBoolean secondWasDone = new AtomicBoolean(false); |
| final AtomicBoolean firstTime = new AtomicBoolean(true); |
| while ( retryLoop.shouldContinue() ) |
| { |
| try |
| { |
| RetryLoop.callWithRetry |
| ( |
| client, |
| new Callable<Void>() |
| { |
| @Override |
| public Void call() throws Exception |
| { |
| if ( firstTime.compareAndSet(true, false) ) |
| { |
| Assert.assertNull(client.getZooKeeper().exists("/foo/bar", false)); |
| KillSession.kill(client.getZooKeeper(), server.getConnectString()); |
| client.getZooKeeper(); |
| client.blockUntilConnectedOrTimedOut(); |
| } |
| |
| Assert.assertNull(client.getZooKeeper().exists("/foo/bar", false)); |
| return null; |
| } |
| } |
| ); |
| |
| RetryLoop.callWithRetry |
| ( |
| client, |
| new Callable<Void>() |
| { |
| @Override |
| public Void call() throws Exception |
| { |
| Assert.assertFalse(firstTime.get()); |
| Assert.assertNull(client.getZooKeeper().exists("/foo/bar", false)); |
| secondWasDone.set(true); |
| return null; |
| } |
| } |
| ); |
| } |
| catch ( Exception e ) |
| { |
| retryLoop.takeException(e); |
| } |
| } |
| |
| Assert.assertTrue(secondWasDone.get()); |
| } |
| finally |
| { |
| retryLoop.close(); |
| CloseableUtils.closeQuietly(client); |
| } |
| } |
| |
| @Test |
| public void testRetryStatic() throws Exception |
| { |
| Timing timing = new Timing(); |
| final CuratorZookeeperClient client = new CuratorZookeeperClient(server.getConnectString(), timing.session(), timing.connection(), null, new RetryOneTime(1)); |
| SessionFailRetryLoop retryLoop = client.newSessionFailRetryLoop(SessionFailRetryLoop.Mode.RETRY); |
| retryLoop.start(); |
| try |
| { |
| client.start(); |
| final AtomicBoolean secondWasDone = new AtomicBoolean(false); |
| final AtomicBoolean firstTime = new AtomicBoolean(true); |
| SessionFailRetryLoop.callWithRetry |
| ( |
| client, |
| SessionFailRetryLoop.Mode.RETRY, |
| new Callable<Object>() |
| { |
| @Override |
| public Object call() throws Exception |
| { |
| RetryLoop.callWithRetry |
| ( |
| client, |
| new Callable<Void>() |
| { |
| @Override |
| public Void call() throws Exception |
| { |
| if ( firstTime.compareAndSet(true, false) ) |
| { |
| Assert.assertNull(client.getZooKeeper().exists("/foo/bar", false)); |
| KillSession.kill(client.getZooKeeper(), server.getConnectString()); |
| client.getZooKeeper(); |
| client.blockUntilConnectedOrTimedOut(); |
| } |
| |
| Assert.assertNull(client.getZooKeeper().exists("/foo/bar", false)); |
| return null; |
| } |
| } |
| ); |
| |
| RetryLoop.callWithRetry |
| ( |
| client, |
| new Callable<Void>() |
| { |
| @Override |
| public Void call() throws Exception |
| { |
| Assert.assertFalse(firstTime.get()); |
| Assert.assertNull(client.getZooKeeper().exists("/foo/bar", false)); |
| secondWasDone.set(true); |
| return null; |
| } |
| } |
| ); |
| return null; |
| } |
| } |
| ); |
| |
| Assert.assertTrue(secondWasDone.get()); |
| } |
| finally |
| { |
| retryLoop.close(); |
| CloseableUtils.closeQuietly(client); |
| } |
| } |
| |
| @Test |
| public void testBasic() throws Exception |
| { |
| Timing timing = new Timing(); |
| final CuratorZookeeperClient client = new CuratorZookeeperClient(server.getConnectString(), timing.session(), timing.connection(), null, new RetryOneTime(1)); |
| SessionFailRetryLoop retryLoop = client.newSessionFailRetryLoop(SessionFailRetryLoop.Mode.FAIL); |
| retryLoop.start(); |
| try |
| { |
| client.start(); |
| try |
| { |
| while ( retryLoop.shouldContinue() ) |
| { |
| try |
| { |
| RetryLoop.callWithRetry |
| ( |
| client, |
| new Callable<Void>() |
| { |
| @Override |
| public Void call() throws Exception |
| { |
| Assert.assertNull(client.getZooKeeper().exists("/foo/bar", false)); |
| KillSession.kill(client.getZooKeeper(), server.getConnectString()); |
| |
| client.getZooKeeper(); |
| client.blockUntilConnectedOrTimedOut(); |
| Assert.assertNull(client.getZooKeeper().exists("/foo/bar", false)); |
| return null; |
| } |
| } |
| ); |
| } |
| catch ( Exception e ) |
| { |
| retryLoop.takeException(e); |
| } |
| } |
| |
| Assert.fail(); |
| } |
| catch ( SessionFailRetryLoop.SessionFailedException dummy ) |
| { |
| // correct |
| } |
| } |
| finally |
| { |
| retryLoop.close(); |
| CloseableUtils.closeQuietly(client); |
| } |
| } |
| |
| @Test |
| public void testBasicStatic() throws Exception |
| { |
| Timing timing = new Timing(); |
| final CuratorZookeeperClient client = new CuratorZookeeperClient(server.getConnectString(), timing.session(), timing.connection(), null, new RetryOneTime(1)); |
| SessionFailRetryLoop retryLoop = client.newSessionFailRetryLoop(SessionFailRetryLoop.Mode.FAIL); |
| retryLoop.start(); |
| try |
| { |
| client.start(); |
| try |
| { |
| SessionFailRetryLoop.callWithRetry |
| ( |
| client, |
| SessionFailRetryLoop.Mode.FAIL, |
| new Callable<Object>() |
| { |
| @Override |
| public Object call() throws Exception |
| { |
| RetryLoop.callWithRetry |
| ( |
| client, |
| new Callable<Void>() |
| { |
| @Override |
| public Void call() throws Exception |
| { |
| Assert.assertNull(client.getZooKeeper().exists("/foo/bar", false)); |
| KillSession.kill(client.getZooKeeper(), server.getConnectString()); |
| |
| client.getZooKeeper(); |
| client.blockUntilConnectedOrTimedOut(); |
| Assert.assertNull(client.getZooKeeper().exists("/foo/bar", false)); |
| return null; |
| } |
| } |
| ); |
| return null; |
| } |
| } |
| ); |
| } |
| catch ( SessionFailRetryLoop.SessionFailedException dummy ) |
| { |
| // correct |
| } |
| } |
| finally |
| { |
| retryLoop.close(); |
| CloseableUtils.closeQuietly(client); |
| } |
| } |
| } |