| /** |
| * 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.kafka; |
| |
| import kafka.consumer.ConsumerIterator; |
| import kafka.consumer.KafkaStream; |
| import kafka.javaapi.consumer.ConsumerConnector; |
| import kafka.message.MessageAndMetadata; |
| import org.apache.atlas.notification.AbstractNotification; |
| import org.apache.atlas.notification.MessageVersion; |
| import org.apache.atlas.notification.NotificationConsumer; |
| import org.apache.atlas.notification.NotificationInterface; |
| import org.apache.atlas.notification.IncompatibleVersionException; |
| import org.apache.atlas.notification.VersionedMessage; |
| import org.apache.atlas.notification.entity.EntityNotificationImplTest; |
| import org.apache.atlas.notification.hook.HookNotification; |
| import org.apache.atlas.typesystem.IStruct; |
| import org.apache.atlas.typesystem.Referenceable; |
| import org.apache.atlas.typesystem.Struct; |
| import org.codehaus.jettison.json.JSONException; |
| import org.mockito.Mock; |
| import org.mockito.MockitoAnnotations; |
| import org.testng.annotations.BeforeMethod; |
| import org.testng.annotations.Test; |
| |
| import java.util.Collections; |
| import java.util.LinkedList; |
| import java.util.List; |
| import java.util.NoSuchElementException; |
| |
| import static org.mockito.Mockito.mock; |
| import static org.mockito.Mockito.never; |
| import static org.mockito.Mockito.verify; |
| import static org.mockito.Mockito.when; |
| import static org.testng.Assert.*; |
| |
| /** |
| * KafkaConsumer tests. |
| */ |
| public class KafkaConsumerTest { |
| |
| private static final String TRAIT_NAME = "MyTrait"; |
| |
| @Mock |
| private ConsumerConnector consumerConnector; |
| |
| @BeforeMethod |
| public void setup() { |
| MockitoAnnotations.initMocks(this); |
| } |
| |
| @Test |
| public void testNext() throws Exception { |
| KafkaStream<String, String> stream = mock(KafkaStream.class); |
| ConsumerIterator<String, String> iterator = mock(ConsumerIterator.class); |
| MessageAndMetadata<String, String> messageAndMetadata = mock(MessageAndMetadata.class); |
| |
| Referenceable entity = getEntity(TRAIT_NAME); |
| |
| HookNotification.EntityUpdateRequest message = |
| new HookNotification.EntityUpdateRequest("user1", entity); |
| |
| String json = AbstractNotification.GSON.toJson(new VersionedMessage<>(new MessageVersion("1.0.0"), message)); |
| |
| when(stream.iterator()).thenReturn(iterator); |
| when(iterator.hasNext()).thenReturn(true).thenReturn(false); |
| when(iterator.next()).thenReturn(messageAndMetadata).thenThrow(new NoSuchElementException()); |
| when(messageAndMetadata.message()).thenReturn(json); |
| |
| NotificationConsumer<HookNotification.HookNotificationMessage> consumer = |
| new KafkaConsumer<>( |
| NotificationInterface.NotificationType.HOOK.getDeserializer(), stream, 99, |
| consumerConnector, false); |
| |
| assertTrue(consumer.hasNext()); |
| |
| HookNotification.HookNotificationMessage consumedMessage = consumer.next(); |
| |
| assertMessagesEqual(message, consumedMessage, entity); |
| |
| assertFalse(consumer.hasNext()); |
| } |
| |
| @Test |
| public void testNextVersionMismatch() throws Exception { |
| KafkaStream<String, String> stream = mock(KafkaStream.class); |
| ConsumerIterator<String, String> iterator = mock(ConsumerIterator.class); |
| MessageAndMetadata<String, String> messageAndMetadata = mock(MessageAndMetadata.class); |
| |
| Referenceable entity = getEntity(TRAIT_NAME); |
| |
| HookNotification.EntityUpdateRequest message = |
| new HookNotification.EntityUpdateRequest("user1", entity); |
| |
| String json = AbstractNotification.GSON.toJson(new VersionedMessage<>(new MessageVersion("2.0.0"), message)); |
| |
| when(stream.iterator()).thenReturn(iterator); |
| when(iterator.hasNext()).thenReturn(true).thenReturn(false); |
| when(iterator.next()).thenReturn(messageAndMetadata).thenThrow(new NoSuchElementException()); |
| when(messageAndMetadata.message()).thenReturn(json); |
| |
| NotificationConsumer<HookNotification.HookNotificationMessage> consumer = |
| new KafkaConsumer<>( |
| NotificationInterface.NotificationType.HOOK.getDeserializer(), stream, 99, |
| consumerConnector, false); |
| |
| assertTrue(consumer.hasNext()); |
| |
| try { |
| consumer.next(); |
| fail("Expected VersionMismatchException!"); |
| } catch (IncompatibleVersionException e) { |
| e.printStackTrace(); |
| } |
| |
| assertFalse(consumer.hasNext()); |
| } |
| |
| @Test |
| public void testPeekMessage() throws Exception { |
| KafkaStream<String, String> stream = mock(KafkaStream.class); |
| ConsumerIterator<String, String> iterator = mock(ConsumerIterator.class); |
| MessageAndMetadata<String, String> messageAndMetadata = mock(MessageAndMetadata.class); |
| |
| Referenceable entity = getEntity(TRAIT_NAME); |
| |
| HookNotification.EntityUpdateRequest message = |
| new HookNotification.EntityUpdateRequest("user1", entity); |
| |
| String json = AbstractNotification.GSON.toJson(new VersionedMessage<>(new MessageVersion("1.0.0"), message)); |
| |
| when(stream.iterator()).thenReturn(iterator); |
| when(iterator.hasNext()).thenReturn(true); |
| when(iterator.peek()).thenReturn(messageAndMetadata); |
| when(messageAndMetadata.message()).thenReturn(json); |
| |
| NotificationConsumer<HookNotification.HookNotificationMessage> consumer = |
| new KafkaConsumer<>( |
| NotificationInterface.NotificationType.HOOK.getDeserializer(), stream, 99, |
| consumerConnector, false); |
| |
| assertTrue(consumer.hasNext()); |
| |
| HookNotification.HookNotificationMessage consumedMessage = consumer.peek(); |
| |
| assertMessagesEqual(message, consumedMessage, entity); |
| |
| assertTrue(consumer.hasNext()); |
| } |
| |
| @Test |
| public void testCommitIsCalledIfAutoCommitDisabled() { |
| KafkaStream<String, String> stream = mock(KafkaStream.class); |
| NotificationConsumer<HookNotification.HookNotificationMessage> consumer = |
| new KafkaConsumer<>( |
| NotificationInterface.NotificationType.HOOK.getDeserializer(), stream, 99, |
| consumerConnector, false); |
| |
| consumer.commit(); |
| |
| verify(consumerConnector).commitOffsets(); |
| } |
| |
| @Test |
| public void testCommitIsNotCalledIfAutoCommitEnabled() { |
| KafkaStream<String, String> stream = mock(KafkaStream.class); |
| NotificationConsumer<HookNotification.HookNotificationMessage> consumer = |
| new KafkaConsumer<>( |
| NotificationInterface.NotificationType.HOOK.getDeserializer(), stream, 99, |
| consumerConnector, true); |
| |
| consumer.commit(); |
| |
| verify(consumerConnector, never()).commitOffsets(); |
| } |
| |
| private Referenceable getEntity(String traitName) { |
| Referenceable entity = EntityNotificationImplTest.getEntity("id"); |
| List<IStruct> traitInfo = new LinkedList<>(); |
| IStruct trait = new Struct(traitName, Collections.<String, Object>emptyMap()); |
| traitInfo.add(trait); |
| return entity; |
| } |
| |
| private void assertMessagesEqual(HookNotification.EntityUpdateRequest message, |
| HookNotification.HookNotificationMessage consumedMessage, |
| Referenceable entity) throws JSONException { |
| |
| assertEquals(consumedMessage.getType(), message.getType()); |
| assertEquals(consumedMessage.getUser(), message.getUser()); |
| |
| assertTrue(consumedMessage instanceof HookNotification.EntityUpdateRequest); |
| |
| HookNotification.EntityUpdateRequest deserializedEntityUpdateRequest = |
| (HookNotification.EntityUpdateRequest) consumedMessage; |
| |
| Referenceable deserializedEntity = deserializedEntityUpdateRequest.getEntities().get(0); |
| assertEquals(deserializedEntity.getId(), entity.getId()); |
| assertEquals(deserializedEntity.getTypeName(), entity.getTypeName()); |
| assertEquals(deserializedEntity.getTraits(), entity.getTraits()); |
| assertEquals(deserializedEntity.getTrait(TRAIT_NAME), entity.getTrait(TRAIT_NAME)); |
| } |
| } |