| /* |
| * 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.geode.internal.cache.wan; |
| |
| import static org.apache.geode.distributed.ConfigurationProperties.DURABLE_CLIENT_ID; |
| import static org.mockito.ArgumentMatchers.any; |
| import static org.mockito.ArgumentMatchers.anyString; |
| import static org.mockito.Mockito.doReturn; |
| import static org.mockito.Mockito.doThrow; |
| import static org.mockito.Mockito.mock; |
| import static org.mockito.Mockito.verify; |
| |
| import java.net.InetAddress; |
| import java.net.UnknownHostException; |
| import java.util.LinkedList; |
| import java.util.Properties; |
| |
| import org.junit.Test; |
| import org.mockito.Mockito; |
| |
| import org.apache.geode.CancelCriterion; |
| import org.apache.geode.Statistics; |
| import org.apache.geode.cache.client.internal.Connection; |
| import org.apache.geode.cache.client.internal.Endpoint; |
| import org.apache.geode.cache.client.internal.EndpointManager; |
| import org.apache.geode.cache.client.internal.PoolImpl; |
| import org.apache.geode.cache.client.internal.pooling.PooledConnection; |
| import org.apache.geode.distributed.internal.DistributionConfig; |
| import org.apache.geode.distributed.internal.InternalDistributedSystem; |
| import org.apache.geode.distributed.internal.ServerLocation; |
| import org.apache.geode.distributed.internal.membership.InternalDistributedMember; |
| import org.apache.geode.distributed.internal.membership.gms.membership.HostAddress; |
| import org.apache.geode.internal.cache.InternalCache; |
| import org.apache.geode.internal.cache.PoolFactoryImpl; |
| import org.apache.geode.internal.cache.PoolManagerImpl; |
| import org.apache.geode.internal.monitoring.ThreadsMonitoring; |
| import org.apache.geode.internal.net.SSLConfigurationFactory; |
| import org.apache.geode.internal.security.SecurableCommunicationChannel; |
| |
| public class GatewaySenderEventRemoteDispatcherIntegrationTest { |
| |
| /* |
| * Sometimes hostname lookup is flaky. We don't want such a failure to cripple our |
| * event processor. |
| * |
| * This test assumes hostname lookup (of IP number) succeeds when establishing the initial |
| * connection, but fails when constructing the InternalDistributedSystem object in response to a |
| * remote server crash. |
| */ |
| @Test |
| public void canProcessesEventAfterHostnameLookupFailsInNotifyServerCrashed() throws Exception { |
| |
| final PoolImpl pool = getPool(); |
| |
| final ServerLocation serverLocation = mock(ServerLocation.class); |
| |
| final AbstractGatewaySenderEventProcessor eventProcessor = |
| getMockedAbstractGatewaySenderEventProcessor(pool, serverLocation); |
| |
| final Endpoint endpoint = getMockedEndpoint(serverLocation); |
| final Connection connection = getMockedConnection(serverLocation, endpoint); |
| |
| /* |
| * In order for listeners to be notified, the endpoint must be referenced by the |
| * endpointManager so that it can be removed when the RuntimeException() is thrown by the |
| * connection |
| */ |
| final EndpointManager endpointManager = pool.getEndpointManager(); |
| endpointManager.referenceEndpoint(serverLocation, mock(InternalDistributedMember.class)); |
| |
| final GatewaySenderEventRemoteDispatcher dispatcher = |
| new GatewaySenderEventRemoteDispatcher(eventProcessor, connection); |
| |
| /* |
| * Set a HostnameResolver which simulates a failed |
| * hostname lookup resulting in an UnknownHostException |
| */ |
| InternalDistributedMember.setHostnameResolver(ignored -> { |
| throw new UnknownHostException("a.b.c"); |
| }); |
| |
| /* |
| * We have mocked our connection to throw a RuntimeException when readAcknowledgement() is |
| * called, then in the exception handling for that RuntimeException, the UnknownHostException |
| * will be thrown when trying to notify listeners of the crash. |
| */ |
| dispatcher.readAcknowledgement(); |
| |
| /* |
| * Need to reset the hostname resolver to a real InetAddress resolver as it is static state and |
| * we do not want it to throw an UnknownHostException in subsequent test runs. |
| */ |
| InternalDistributedMember |
| .setHostnameResolver((location) -> InetAddress.getByName(location.getHostName())); |
| |
| /* |
| * The handling of the UnknownHostException should not result in the event processor being |
| * stopped, so assert that setIsStopped(true) was never called. |
| */ |
| verify(eventProcessor, Mockito.times(0)).setIsStopped(true); |
| } |
| |
| private PoolImpl getPool() { |
| final DistributionConfig distributionConfig = mock(DistributionConfig.class); |
| doReturn(new SecurableCommunicationChannel[] {}).when(distributionConfig) |
| .getSecurableCommunicationChannels(); |
| |
| SSLConfigurationFactory.setDistributionConfig(distributionConfig); |
| |
| final Properties properties = new Properties(); |
| properties.put(DURABLE_CLIENT_ID, "1"); |
| |
| final Statistics statistics = mock(Statistics.class); |
| |
| final PoolFactoryImpl.PoolAttributes poolAttributes = |
| mock(PoolFactoryImpl.PoolAttributes.class); |
| /* |
| * These are the minimum pool attributes required |
| * so that basic validation and setup completes successfully. The values of |
| * these attributes have no importance to the assertions of the test itself. |
| */ |
| doReturn(1).when(poolAttributes).getMaxConnections(); |
| doReturn((long) 10e8).when(poolAttributes).getPingInterval(); |
| |
| final CancelCriterion cancelCriterion = mock(CancelCriterion.class); |
| |
| final InternalCache internalCache = mock(InternalCache.class); |
| doReturn(cancelCriterion).when(internalCache).getCancelCriterion(); |
| |
| final InternalDistributedSystem internalDistributedSystem = |
| mock(InternalDistributedSystem.class); |
| doReturn(distributionConfig).when(internalDistributedSystem).getConfig(); |
| doReturn(properties).when(internalDistributedSystem).getProperties(); |
| doReturn(statistics).when(internalDistributedSystem).createAtomicStatistics(any(), anyString()); |
| |
| final PoolManagerImpl poolManager = mock(PoolManagerImpl.class); |
| doReturn(true).when(poolManager).isNormal(); |
| |
| final ThreadsMonitoring tMonitoring = mock(ThreadsMonitoring.class); |
| |
| return PoolImpl.create(poolManager, "pool", poolAttributes, new LinkedList<HostAddress>(), |
| internalDistributedSystem, internalCache, tMonitoring); |
| } |
| |
| private Connection getMockedConnection(ServerLocation serverLocation, Endpoint endpoint) |
| throws Exception { |
| /* |
| * Mock the connection to throw a RuntimeException() when connection.Execute() is called, |
| * so that we attempt to notify listeners in the exception handling logic in |
| * OpExecutorImpl.executeWithPossibleReAuthentication() |
| */ |
| final Connection connection = mock(PooledConnection.class); |
| doReturn(serverLocation).when(connection).getServer(); |
| doReturn(endpoint).when(connection).getEndpoint(); |
| doThrow(new RuntimeException()).when(connection).execute(any()); |
| return connection; |
| } |
| |
| private AbstractGatewaySenderEventProcessor getMockedAbstractGatewaySenderEventProcessor( |
| PoolImpl pool, ServerLocation serverLocation) { |
| final AbstractGatewaySender abstractGatewaySender = mock(AbstractGatewaySender.class); |
| doReturn(serverLocation).when(abstractGatewaySender).getServerLocation(); |
| doReturn(pool).when(abstractGatewaySender).getProxy(); |
| |
| final AbstractGatewaySenderEventProcessor eventProcessor = |
| mock(AbstractGatewaySenderEventProcessor.class); |
| doReturn(abstractGatewaySender).when(eventProcessor).getSender(); |
| return eventProcessor; |
| } |
| |
| private Endpoint getMockedEndpoint(ServerLocation serverLocation) { |
| final Endpoint endpoint = mock(Endpoint.class); |
| doReturn(serverLocation).when(endpoint).getLocation(); |
| return endpoint; |
| } |
| |
| } |