| /* |
| * 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.ignite.internal.processors.service; |
| |
| import java.util.Collection; |
| import java.util.EventListener; |
| import java.util.List; |
| import java.util.concurrent.ConcurrentMap; |
| import org.apache.ignite.internal.IgniteEx; |
| import org.apache.ignite.internal.events.DiscoveryCustomEvent; |
| import org.apache.ignite.internal.managers.eventstorage.GridEventStorageManager; |
| import org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager; |
| import org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionsExchangeFuture; |
| import org.apache.ignite.internal.util.GridConcurrentLinkedHashSet; |
| import org.apache.ignite.testframework.GridTestUtils; |
| import org.apache.ignite.testframework.junits.common.GridCommonAbstractTest; |
| import org.junit.Test; |
| |
| /** |
| * <b>Tests in the class strongly depend on implementation of {@link GridEventStorageManager} and internal logic of |
| * services and PME discovery listeners.</b> |
| * <p/> |
| * Tests that discovery listener registered by {@link ServiceDeploymentManager} will be notified earlier than discovery |
| * listener registered by {@link GridCachePartitionExchangeManager}. It allows service manager capture custom message |
| * because it may be nullified in PME process at the end of exchange in {@link GridDhtPartitionsExchangeFuture#onDone()}. |
| */ |
| public class ServiceDeploymentDiscoveryListenerNotificationOrderTest extends GridCommonAbstractTest { |
| /** |
| * <b>Strongly depends on internal implementation of {@link GridEventStorageManager}.</b> |
| * <p/> |
| * Tests that discovery listener registered by {@link ServiceDeploymentManager} is in collection of hight priority |
| * listeners, at the same time discovery listener registered by {@link GridCachePartitionExchangeManager} is in |
| * collection of usual listeners. |
| * <p/> |
| * This guarantees that service deployment discovery listener will be notified earlier that PME's discovery listener |
| * and will be able to capture custom messages which may be nullified in PME process. |
| * |
| * @throws Exception In case of an error. |
| */ |
| @Test |
| public void testServiceDiscoveryListenerNotifiedEarlierThanPME() throws Exception { |
| try { |
| IgniteEx ignite = startGrid(0); |
| |
| ConcurrentMap<Integer, Object> lsnrs = GridTestUtils |
| .getFieldValue(ignite.context().event(), "lsnrs"); |
| |
| Object customLsnrs = lsnrs.get(DiscoveryCustomEvent.EVT_DISCOVERY_CUSTOM_EVT); |
| |
| List<EventListener> highPriorityLsnrs = GridTestUtils.getFieldValue(customLsnrs, "highPriorityLsnrs"); |
| |
| GridConcurrentLinkedHashSet<EventListener> usualLsnrs = GridTestUtils |
| .getFieldValue(customLsnrs, "lsnrs"); |
| |
| assertTrue("Failed to find service deployment manager's listener in high priority listeners.", |
| containsListener(highPriorityLsnrs, ServiceDeploymentManager.class)); |
| |
| assertFalse("Service deployment manager's listener shoud not be registered in usual listeners.", |
| containsListener(usualLsnrs, ServiceDeploymentManager.class)); |
| |
| assertTrue("Failed to find PME manager's discovery listener in usual listeners.", |
| containsListener(usualLsnrs, GridCachePartitionExchangeManager.class)); |
| |
| assertFalse("PME manager's discovery listener shoud not be registered in high priority listeners.", |
| containsListener(highPriorityLsnrs, GridCachePartitionExchangeManager.class)); |
| } |
| finally { |
| stopAllGrids(); |
| } |
| } |
| |
| /** |
| * @param lsnrs Collection of listeners. |
| * @param cls Listener class. |
| * @return {@code true} if given collection contains expected listener, otherwise {@code false}. |
| */ |
| private boolean containsListener(Collection<EventListener> lsnrs, Class cls) { |
| for (Object wrapper : lsnrs) { |
| Object lsnr = GridTestUtils.getFieldValue(wrapper, "lsnr"); |
| |
| // We can't use 'instance of' or other reflection tools to check the type of class, because, service |
| // deployment discovery listener is a private non-static class, PME's listener is an anonymous class. |
| if (lsnr.getClass().getName().startsWith(cls.getName())) |
| return true; |
| } |
| |
| return false; |
| } |
| } |