2 * ============LICENSE_START=======================================================
3 * Copyright (C) 2016-2018 Ericsson. All rights reserved.
4 * ================================================================================
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
17 * SPDX-License-Identifier: Apache-2.0
18 * ============LICENSE_END=========================================================
21 package org.onap.policy.apex.apps.uservice.test.adapt.kafka;
23 import static org.junit.Assert.assertEquals;
25 import java.io.IOException;
26 import java.nio.file.Files;
27 import java.util.Properties;
29 import kafka.admin.AdminUtils;
30 import kafka.admin.RackAwareMode;
31 import kafka.server.KafkaConfig;
32 import kafka.server.KafkaServer;
33 import kafka.utils.TestUtils;
34 import kafka.utils.ZKStringSerializer$;
35 import kafka.utils.ZkUtils;
36 import kafka.zk.EmbeddedZookeeper;
38 import org.I0Itec.zkclient.ZkClient;
39 import org.apache.kafka.common.utils.MockTime;
40 import org.apache.kafka.common.utils.Time;
41 import org.junit.AfterClass;
42 import org.junit.BeforeClass;
43 import org.junit.Test;
44 import org.onap.policy.apex.core.infrastructure.messaging.MessagingException;
45 import org.onap.policy.apex.core.infrastructure.threading.ThreadUtilities;
46 import org.onap.policy.apex.model.basicmodel.concepts.ApexException;
47 import org.onap.policy.apex.service.engine.main.ApexMain;
51 * The Class TestKafka2Kafka.
53 public class TestKafka2Kafka {
54 // The method of starting an embedded Kafka server used in this example is based on the method
55 // on stack overflow at
56 // https://github.com/asmaier/mini-kafka
58 private static final long MAX_TEST_LENGTH = 20000;
60 private static final int EVENT_COUNT = 10;
61 private static final int EVENT_INTERVAL = 20;
63 private static final String ZKHOST = "127.0.0.1";
64 private static final String BROKERHOST = "127.0.0.1";
65 private static final String BROKERPORT = "39902";
67 private static EmbeddedZookeeper zkServer;
68 private static ZkClient zkClient;
69 private static KafkaServer kafkaServer;
72 * Setup dummy kafka server.
74 * @throws IOException Signals that an I/O exception has occurred.
77 public static void setupDummyKafkaServer() throws IOException {
79 zkServer = new EmbeddedZookeeper();
80 final String zkConnect = ZKHOST + ":" + zkServer.port();
81 zkClient = new ZkClient(zkConnect, 30000, 30000, ZKStringSerializer$.MODULE$);
82 final ZkUtils zkUtils = ZkUtils.apply(zkClient, false);
85 final Properties brokerProps = new Properties();
86 brokerProps.setProperty("zookeeper.connect", zkConnect);
87 brokerProps.setProperty("broker.id", "0");
88 brokerProps.setProperty("log.dirs", Files.createTempDirectory("kafka-").toAbsolutePath().toString());
89 brokerProps.setProperty("listeners", "PLAINTEXT://" + BROKERHOST + ":" + BROKERPORT);
90 brokerProps.setProperty("offsets.topic.replication.factor", "1");
91 brokerProps.setProperty("transaction.state.log.replication.factor", "1");
92 brokerProps.setProperty("transaction.state.log.min.isr", "1");
93 final KafkaConfig config = new KafkaConfig(brokerProps);
94 final Time mock = new MockTime();
95 kafkaServer = TestUtils.createServer(config, mock);
96 kafkaServer.startup();
99 AdminUtils.createTopic(zkUtils, "apex-in-0", 1, 1, new Properties(), RackAwareMode.Disabled$.MODULE$);
100 AdminUtils.createTopic(zkUtils, "apex-in-1", 1, 1, new Properties(), RackAwareMode.Disabled$.MODULE$);
101 AdminUtils.createTopic(zkUtils, "apex-out", 1, 1, new Properties(), RackAwareMode.Disabled$.MODULE$);
106 * Shutdown dummy kafka server.
108 * @throws IOException Signals that an I/O exception has occurred.
111 public static void shutdownDummyKafkaServer() throws IOException {
112 if (kafkaServer != null) {
113 kafkaServer.shutdown();
115 if (zkClient != null) {
118 if (zkServer != null) {
124 * Test json kafka events.
126 * @throws MessagingException the messaging exception
127 * @throws ApexException the apex exception
130 public void testJsonKafkaEvents() throws MessagingException, ApexException {
131 final String[] args = {"src/test/resources/prodcons/Kafka2KafkaJsonEvent.json"};
132 testKafkaEvents(args, false, "json");
136 * Test XML kafka events.
138 * @throws MessagingException the messaging exception
139 * @throws ApexException the apex exception
142 public void testXmlKafkaEvents() throws MessagingException, ApexException {
143 final String[] args = {"src/test/resources/prodcons/Kafka2KafkaXmlEvent.json"};
144 testKafkaEvents(args, true, "xml");
150 * @param args the args
151 * @param xmlEvents the xml events
152 * @param topicSuffix the topic suffix
153 * @throws MessagingException the messaging exception
154 * @throws ApexException the apex exception
156 private void testKafkaEvents(final String[] args, final Boolean xmlEvents, final String topicSuffix)
157 throws MessagingException, ApexException {
158 final KafkaEventSubscriber subscriber =
159 new KafkaEventSubscriber("apex-out-" + topicSuffix, "localhost:" + BROKERPORT);
161 final ApexMain apexMain = new ApexMain(args);
162 ThreadUtilities.sleep(3000);
164 final KafkaEventProducer producer = new KafkaEventProducer("apex-in-" + topicSuffix, "localhost:" + BROKERPORT,
165 EVENT_COUNT, xmlEvents, EVENT_INTERVAL);
167 producer.sendEvents();
169 final long testStartTime = System.currentTimeMillis();
171 while (System.currentTimeMillis() < testStartTime + MAX_TEST_LENGTH
172 && subscriber.getEventsReceivedCount() < EVENT_COUNT) {
173 ThreadUtilities.sleep(EVENT_INTERVAL);
176 ThreadUtilities.sleep(1000);
178 assertEquals(producer.getEventsSentCount(), subscriber.getEventsReceivedCount());
181 subscriber.shutdown();
183 ThreadUtilities.sleep(1000);