| /** |
| * 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 org.apache.atlas.ApplicationProperties; |
| import org.apache.atlas.notification.NotificationConsumer; |
| import org.apache.atlas.notification.NotificationInterface; |
| import org.apache.atlas.notification.hook.HookNotification; |
| import org.apache.atlas.typesystem.Referenceable; |
| import org.apache.commons.configuration.Configuration; |
| import org.apache.commons.lang.RandomStringUtils; |
| import org.testng.annotations.AfterClass; |
| import org.testng.annotations.BeforeClass; |
| import org.testng.annotations.Test; |
| |
| import static org.testng.Assert.assertEquals; |
| import static org.testng.Assert.assertTrue; |
| |
| public class KafkaNotificationTest { |
| |
| private KafkaNotification kafkaNotification; |
| |
| @BeforeClass |
| public void setup() throws Exception { |
| Configuration properties = ApplicationProperties.get(); |
| properties.setProperty("atlas.kafka.data", "target/" + RandomStringUtils.randomAlphanumeric(5)); |
| |
| kafkaNotification = new KafkaNotification(properties); |
| kafkaNotification.start(); |
| } |
| |
| @AfterClass |
| public void shutdown() throws Exception { |
| kafkaNotification.close(); |
| kafkaNotification.stop(); |
| } |
| |
| @Test |
| public void testNext() throws Exception { |
| kafkaNotification.send(NotificationInterface.NotificationType.HOOK, |
| new HookNotification.EntityCreateRequest("u1", new Referenceable("type"))); |
| kafkaNotification.send(NotificationInterface.NotificationType.HOOK, |
| new HookNotification.EntityCreateRequest("u2", new Referenceable("type"))); |
| kafkaNotification.send(NotificationInterface.NotificationType.HOOK, |
| new HookNotification.EntityCreateRequest("u3", new Referenceable("type"))); |
| kafkaNotification.send(NotificationInterface.NotificationType.HOOK, |
| new HookNotification.EntityCreateRequest("u4", new Referenceable("type"))); |
| |
| NotificationConsumer<Object> consumer = |
| kafkaNotification.createConsumers(NotificationInterface.NotificationType.HOOK, 1).get(0); |
| assertTrue(consumer.hasNext()); |
| HookNotification.HookNotificationMessage message = (HookNotification.HookNotificationMessage) consumer.next(); |
| assertEquals(message.getUser(), "u1"); |
| |
| assertTrue(consumer.hasNext()); |
| message = (HookNotification.HookNotificationMessage) consumer.next(); |
| assertEquals(message.getUser(), "u2"); |
| consumer.close(); |
| |
| //nothing committed(even though u1 and u2 are read), now should restart from u1 |
| consumer = kafkaNotification.createConsumers(NotificationInterface.NotificationType.HOOK, 1).get(0); |
| assertTrue(consumer.hasNext()); |
| message = (HookNotification.HookNotificationMessage) consumer.next(); |
| assertEquals(message.getUser(), "u1"); |
| consumer.commit(); |
| |
| assertTrue(consumer.hasNext()); |
| message = (HookNotification.HookNotificationMessage) consumer.next(); |
| assertEquals(message.getUser(), "u2"); |
| consumer.close(); |
| |
| //u1 committed, u2 read, should start from u2 |
| consumer = kafkaNotification.createConsumers(NotificationInterface.NotificationType.HOOK, 1).get(0); |
| assertTrue(consumer.hasNext()); |
| message = (HookNotification.HookNotificationMessage) consumer.next(); |
| assertEquals(message.getUser(), "u2"); |
| |
| assertTrue(consumer.hasNext()); |
| message = (HookNotification.HookNotificationMessage) consumer.next(); |
| assertEquals(message.getUser(), "u3"); |
| consumer.commit(); |
| consumer.close(); |
| |
| //u2, u3 read, but only u3 committed, should start from u4 |
| consumer = kafkaNotification.createConsumers(NotificationInterface.NotificationType.HOOK, 1).get(0); |
| assertTrue(consumer.hasNext()); |
| message = (HookNotification.HookNotificationMessage) consumer.next(); |
| assertEquals(message.getUser(), "u4"); |
| consumer.close(); |
| } |
| } |