Java tutorial
/** * 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.atlas.notification; import org.apache.atlas.AtlasException; import org.apache.atlas.AtlasServiceException; import org.apache.atlas.exception.AtlasBaseException; import org.apache.atlas.ha.HAConfiguration; import org.apache.atlas.model.instance.AtlasEntity; import org.apache.atlas.model.instance.EntityMutationResponse; import org.apache.atlas.notification.hook.HookNotification; import org.apache.atlas.repository.converters.AtlasInstanceConverter; import org.apache.atlas.repository.store.graph.AtlasEntityStore; import org.apache.atlas.repository.store.graph.v1.EntityStream; import org.apache.atlas.type.AtlasType; import org.apache.atlas.type.AtlasTypeRegistry; import org.apache.atlas.typesystem.Referenceable; import org.apache.atlas.web.service.ServiceState; import org.apache.commons.configuration.Configuration; import org.mockito.Mock; import org.mockito.MockitoAnnotations; import org.testng.annotations.BeforeMethod; import org.testng.annotations.Test; import java.util.ArrayList; import java.util.Arrays; import java.util.List; import java.util.concurrent.ExecutorService; import static org.mockito.Mockito.*; import static org.testng.AssertJUnit.assertFalse; import static org.testng.AssertJUnit.assertTrue; public class NotificationHookConsumerTest { @Mock private NotificationInterface notificationInterface; @Mock private Configuration configuration; @Mock private ExecutorService executorService; @Mock private AtlasEntityStore atlasEntityStore; @Mock private ServiceState serviceState; @Mock private AtlasInstanceConverter instanceConverter; @Mock private AtlasTypeRegistry typeRegistry; @BeforeMethod public void setup() throws AtlasBaseException { MockitoAnnotations.initMocks(this); AtlasType mockType = mock(AtlasType.class); when(typeRegistry.getType(anyString())).thenReturn(mockType); AtlasEntity.AtlasEntitiesWithExtInfo mockEntity = mock(AtlasEntity.AtlasEntitiesWithExtInfo.class); when(instanceConverter.toAtlasEntities(anyList())).thenReturn(mockEntity); EntityMutationResponse mutationResponse = mock(EntityMutationResponse.class); when(atlasEntityStore.createOrUpdate(any(EntityStream.class), anyBoolean())).thenReturn(mutationResponse); } @Test public void testConsumerCanProceedIfServerIsReady() throws Exception { NotificationHookConsumer notificationHookConsumer = new NotificationHookConsumer(notificationInterface, atlasEntityStore, serviceState, instanceConverter, typeRegistry); NotificationHookConsumer.HookConsumer hookConsumer = notificationHookConsumer.new HookConsumer( mock(NotificationConsumer.class)); NotificationHookConsumer.Timer timer = mock(NotificationHookConsumer.Timer.class); when(serviceState.getState()).thenReturn(ServiceState.ServiceStateValue.ACTIVE); assertTrue(hookConsumer.serverAvailable(timer)); verifyZeroInteractions(timer); } @Test public void testConsumerWaitsNTimesIfServerIsNotReadyNTimes() throws Exception { NotificationHookConsumer notificationHookConsumer = new NotificationHookConsumer(notificationInterface, atlasEntityStore, serviceState, instanceConverter, typeRegistry); NotificationHookConsumer.HookConsumer hookConsumer = notificationHookConsumer.new HookConsumer( mock(NotificationConsumer.class)); NotificationHookConsumer.Timer timer = mock(NotificationHookConsumer.Timer.class); when(serviceState.getState()).thenReturn(ServiceState.ServiceStateValue.PASSIVE) .thenReturn(ServiceState.ServiceStateValue.PASSIVE) .thenReturn(ServiceState.ServiceStateValue.PASSIVE) .thenReturn(ServiceState.ServiceStateValue.ACTIVE); assertTrue(hookConsumer.serverAvailable(timer)); verify(timer, times(3)).sleep(NotificationHookConsumer.SERVER_READY_WAIT_TIME_MS); } @Test public void testCommitIsCalledWhenMessageIsProcessed() throws AtlasServiceException, AtlasException { NotificationHookConsumer notificationHookConsumer = new NotificationHookConsumer(notificationInterface, atlasEntityStore, serviceState, instanceConverter, typeRegistry); NotificationConsumer consumer = mock(NotificationConsumer.class); NotificationHookConsumer.HookConsumer hookConsumer = notificationHookConsumer.new HookConsumer(consumer); HookNotification.EntityCreateRequest message = mock(HookNotification.EntityCreateRequest.class); when(message.getUser()).thenReturn("user"); when(message.getType()).thenReturn(HookNotification.HookNotificationType.ENTITY_CREATE); Referenceable mock = mock(Referenceable.class); when(message.getEntities()).thenReturn(Arrays.asList(mock)); hookConsumer.handleMessage(message); verify(consumer).commit(); } @Test public void testCommitIsNotCalledEvenWhenMessageProcessingFails() throws AtlasServiceException, AtlasException, AtlasBaseException { NotificationHookConsumer notificationHookConsumer = new NotificationHookConsumer(notificationInterface, atlasEntityStore, serviceState, instanceConverter, typeRegistry); NotificationConsumer consumer = mock(NotificationConsumer.class); NotificationHookConsumer.HookConsumer hookConsumer = notificationHookConsumer.new HookConsumer(consumer); HookNotification.EntityCreateRequest message = new HookNotification.EntityCreateRequest("user", new ArrayList<Referenceable>() { { add(mock(Referenceable.class)); } }); when(atlasEntityStore.createOrUpdate(any(EntityStream.class), anyBoolean())) .thenThrow(new RuntimeException("Simulating exception in processing message")); hookConsumer.handleMessage(message); verifyZeroInteractions(consumer); } @Test public void testConsumerProceedsWithFalseIfInterrupted() throws Exception { NotificationHookConsumer notificationHookConsumer = new NotificationHookConsumer(notificationInterface, atlasEntityStore, serviceState, instanceConverter, typeRegistry); NotificationHookConsumer.HookConsumer hookConsumer = notificationHookConsumer.new HookConsumer( mock(NotificationConsumer.class)); NotificationHookConsumer.Timer timer = mock(NotificationHookConsumer.Timer.class); doThrow(new InterruptedException()).when(timer).sleep(NotificationHookConsumer.SERVER_READY_WAIT_TIME_MS); when(serviceState.getState()).thenReturn(ServiceState.ServiceStateValue.PASSIVE); assertFalse(hookConsumer.serverAvailable(timer)); } @Test public void testConsumersStartedIfHAIsDisabled() throws Exception { when(configuration.getBoolean(HAConfiguration.ATLAS_SERVER_HA_ENABLED_KEY, false)).thenReturn(false); when(configuration.getInt(NotificationHookConsumer.CONSUMER_THREADS_PROPERTY, 1)).thenReturn(1); List<NotificationConsumer<Object>> consumers = new ArrayList(); consumers.add(mock(NotificationConsumer.class)); when(notificationInterface.createConsumers(NotificationInterface.NotificationType.HOOK, 1)) .thenReturn(consumers); NotificationHookConsumer notificationHookConsumer = new NotificationHookConsumer(notificationInterface, atlasEntityStore, serviceState, instanceConverter, typeRegistry); notificationHookConsumer.startInternal(configuration, executorService); verify(notificationInterface).createConsumers(NotificationInterface.NotificationType.HOOK, 1); verify(executorService).submit(any(NotificationHookConsumer.HookConsumer.class)); } @Test public void testConsumersAreNotStartedIfHAIsEnabled() throws Exception { when(configuration.containsKey(HAConfiguration.ATLAS_SERVER_HA_ENABLED_KEY)).thenReturn(true); when(configuration.getBoolean(HAConfiguration.ATLAS_SERVER_HA_ENABLED_KEY)).thenReturn(true); when(configuration.getInt(NotificationHookConsumer.CONSUMER_THREADS_PROPERTY, 1)).thenReturn(1); List<NotificationConsumer<Object>> consumers = new ArrayList(); consumers.add(mock(NotificationConsumer.class)); when(notificationInterface.createConsumers(NotificationInterface.NotificationType.HOOK, 1)) .thenReturn(consumers); NotificationHookConsumer notificationHookConsumer = new NotificationHookConsumer(notificationInterface, atlasEntityStore, serviceState, instanceConverter, typeRegistry); notificationHookConsumer.startInternal(configuration, executorService); verifyZeroInteractions(notificationInterface); } @Test public void testConsumersAreStartedWhenInstanceBecomesActive() throws Exception { when(configuration.containsKey(HAConfiguration.ATLAS_SERVER_HA_ENABLED_KEY)).thenReturn(true); when(configuration.getBoolean(HAConfiguration.ATLAS_SERVER_HA_ENABLED_KEY)).thenReturn(true); when(configuration.getInt(NotificationHookConsumer.CONSUMER_THREADS_PROPERTY, 1)).thenReturn(1); List<NotificationConsumer<Object>> consumers = new ArrayList(); consumers.add(mock(NotificationConsumer.class)); when(notificationInterface.createConsumers(NotificationInterface.NotificationType.HOOK, 1)) .thenReturn(consumers); NotificationHookConsumer notificationHookConsumer = new NotificationHookConsumer(notificationInterface, atlasEntityStore, serviceState, instanceConverter, typeRegistry); notificationHookConsumer.startInternal(configuration, executorService); notificationHookConsumer.instanceIsActive(); verify(notificationInterface).createConsumers(NotificationInterface.NotificationType.HOOK, 1); verify(executorService).submit(any(NotificationHookConsumer.HookConsumer.class)); } @Test public void testConsumersAreStoppedWhenInstanceBecomesPassive() throws Exception { when(configuration.getBoolean(HAConfiguration.ATLAS_SERVER_HA_ENABLED_KEY, false)).thenReturn(true); when(configuration.getInt(NotificationHookConsumer.CONSUMER_THREADS_PROPERTY, 1)).thenReturn(1); List<NotificationConsumer<Object>> consumers = new ArrayList(); consumers.add(mock(NotificationConsumer.class)); when(notificationInterface.createConsumers(NotificationInterface.NotificationType.HOOK, 1)) .thenReturn(consumers); NotificationHookConsumer notificationHookConsumer = new NotificationHookConsumer(notificationInterface, atlasEntityStore, serviceState, instanceConverter, typeRegistry); notificationHookConsumer.startInternal(configuration, executorService); notificationHookConsumer.instanceIsPassive(); verify(notificationInterface).close(); verify(executorService).shutdown(); } }