| /** |
| * 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.recipes.locks; |
| |
| import org.apache.curator.framework.CuratorFramework; |
| import org.apache.curator.framework.CuratorFrameworkFactory; |
| import org.apache.curator.framework.imps.TestCleanState; |
| import org.apache.curator.retry.RetryOneTime; |
| import org.testng.Assert; |
| import org.testng.annotations.Test; |
| import java.io.IOException; |
| import java.util.Arrays; |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.atomic.AtomicBoolean; |
| |
| public class TestInterProcessMultiMutex extends TestInterProcessMutexBase |
| { |
| private static final String LOCK_PATH_1 = LOCK_BASE_PATH + "/our-lock-1"; |
| private static final String LOCK_PATH_2 = LOCK_BASE_PATH + "/our-lock-2"; |
| |
| @Override |
| protected InterProcessLock makeLock(CuratorFramework client) |
| { |
| return new InterProcessMultiLock(client, Arrays.asList(LOCK_PATH_1, LOCK_PATH_2)); |
| } |
| |
| @Test |
| public void testSomeReleasesFail() throws IOException |
| { |
| CuratorFramework client = CuratorFrameworkFactory.newClient(server.getConnectString(), new RetryOneTime(1)); |
| client.start(); |
| try |
| { |
| InterProcessLock goodLock = new InterProcessMutex(client, LOCK_PATH_1); |
| final InterProcessLock otherGoodLock = new InterProcessMutex(client, LOCK_PATH_2); |
| InterProcessLock badLock = new InterProcessLock() |
| { |
| @Override |
| public void acquire() throws Exception |
| { |
| otherGoodLock.acquire(); |
| } |
| |
| @Override |
| public boolean acquire(long time, TimeUnit unit) throws Exception |
| { |
| return otherGoodLock.acquire(time, unit); |
| } |
| |
| @Override |
| public void release() throws Exception |
| { |
| throw new Exception("foo"); |
| } |
| |
| @Override |
| public boolean isAcquiredInThisProcess() |
| { |
| return otherGoodLock.isAcquiredInThisProcess(); |
| } |
| }; |
| |
| InterProcessMultiLock lock = new InterProcessMultiLock(Arrays.asList(goodLock, badLock)); |
| try |
| { |
| lock.acquire(); |
| lock.release(); |
| Assert.fail(); |
| } |
| catch ( Exception e ) |
| { |
| // ignore |
| } |
| Assert.assertFalse(goodLock.isAcquiredInThisProcess()); |
| Assert.assertTrue(otherGoodLock.isAcquiredInThisProcess()); |
| } |
| finally |
| { |
| TestCleanState.closeAndTestClean(client); |
| } |
| } |
| |
| @Test |
| public void testSomeLocksFailToLock() throws IOException |
| { |
| CuratorFramework client = CuratorFrameworkFactory.newClient(server.getConnectString(), new RetryOneTime(1)); |
| client.start(); |
| try |
| { |
| final AtomicBoolean goodLockWasLocked = new AtomicBoolean(false); |
| final InterProcessLock goodLock = new InterProcessMutex(client, LOCK_PATH_1); |
| InterProcessLock badLock = new InterProcessLock() |
| { |
| @Override |
| public void acquire() throws Exception |
| { |
| if ( goodLock.isAcquiredInThisProcess() ) |
| { |
| goodLockWasLocked.set(true); |
| } |
| throw new Exception("foo"); |
| } |
| |
| @Override |
| public boolean acquire(long time, TimeUnit unit) throws Exception |
| { |
| throw new Exception("foo"); |
| } |
| |
| @Override |
| public void release() throws Exception |
| { |
| throw new Exception("foo"); |
| } |
| |
| @Override |
| public boolean isAcquiredInThisProcess() |
| { |
| return false; |
| } |
| }; |
| |
| InterProcessMultiLock lock = new InterProcessMultiLock(Arrays.asList(goodLock, badLock)); |
| try |
| { |
| lock.acquire(); |
| Assert.fail(); |
| } |
| catch ( Exception e ) |
| { |
| // ignore |
| } |
| Assert.assertFalse(goodLock.isAcquiredInThisProcess()); |
| Assert.assertTrue(goodLockWasLocked.get()); |
| } |
| finally |
| { |
| TestCleanState.closeAndTestClean(client); |
| } |
| } |
| } |