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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2016-2018 Ericsson. All rights reserved.
* Modifications Copyright (C) 2020 Nordix Foundation.
* Modifications Copyright (C) 2020 Bell Canada. All rights reserved.
* ================================================================================
* Licensed 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.
*
* SPDX-License-Identifier: Apache-2.0
* ============LICENSE_END=========================================================
*/
package org.onap.policy.apex.testsuites.integration.uservice.adapt.kafka;
import static org.awaitility.Awaitility.await;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.fail;
import com.salesforce.kafka.test.junit4.SharedKafkaTestResource;
import java.io.File;
import java.io.IOException;
import java.util.concurrent.TimeUnit;
import org.junit.Before;
import org.junit.ClassRule;
import org.junit.Test;
import org.onap.policy.apex.service.engine.main.ApexMain;
import org.onap.policy.common.utils.resources.TextFileUtils;
/**
* The Class TestKafka2Kafka tests Kafka event sending and reception.
*/
public class TestKafka2Kafka {
private static final long MAX_TEST_LENGTH = 300000;
private static final int EVENT_COUNT = 25;
private static final int EVENT_INTERVAL = 20;
/**
* Clear relative file root environment variable.
*/
@Before
public void clearRelativeFileRoot() {
System.clearProperty("APEX_RELATIVE_FILE_ROOT");
}
@ClassRule
public static final SharedKafkaTestResource sharedKafkaTestResource = new SharedKafkaTestResource()
// Start a cluster with 1 brokers.
.withBrokers(1)
// Disable topic auto-creation.
.withBrokerProperty("auto.create.topics.enable", "false");
/**
* Test json kafka events.
*
* @throws Exception the apex exception
*/
@Test
public void testJsonKafkaEvents() throws Exception {
final String conditionedConfigFile = getConditionedConfigFile(
"target" + File.separator + "examples/config/SampleDomain/Kafka2KafkaJsonEvent.json");
final String[] args = {"-rfr", "target", "-p", conditionedConfigFile};
testKafkaEvents(args, false, "json");
}
/**
* Test XML kafka events.
*
* @throws Exception the apex exception
*/
@Test
public void testXmlKafkaEvents() throws Exception {
final String conditionedConfigFile = getConditionedConfigFile(
"target" + File.separator + "examples/config/SampleDomain/Kafka2KafkaXmlEvent.json");
final String[] args = {"-rfr", "target", "-p", conditionedConfigFile};
testKafkaEvents(args, true, "xml");
}
/**
* Test kafka events.
*
* @param args the args
* @param xmlEvents the xml events
* @param topicSuffix the topic suffix
* @throws Exception on errors
*/
private void testKafkaEvents(String[] args, final Boolean xmlEvents, final String topicSuffix) throws Exception {
sharedKafkaTestResource.getKafkaTestUtils().createTopic("apex-out-" + topicSuffix, 1, (short) 1);
sharedKafkaTestResource.getKafkaTestUtils().createTopic("apex-in-" + topicSuffix, 1, (short) 1);
final KafkaEventSubscriber subscriber =
new KafkaEventSubscriber("apex-out-" + topicSuffix, sharedKafkaTestResource);
await().atMost(30, TimeUnit.SECONDS).until(() -> subscriber.isAlive());
final ApexMain apexMain = new ApexMain(args);
await().atMost(10, TimeUnit.SECONDS).until(() -> apexMain.isAlive());
long initWaitEndTIme = System.currentTimeMillis() + 10000;
await().atMost(12, TimeUnit.SECONDS).until(() -> initWaitEndTIme < System.currentTimeMillis());
final KafkaEventProducer producer = new KafkaEventProducer("apex-in-" + topicSuffix, sharedKafkaTestResource,
EVENT_COUNT, xmlEvents, EVENT_INTERVAL);
await().atMost(30, TimeUnit.SECONDS).until(() -> producer.isAlive());
producer.sendEvents();
// Wait for the producer to send all its events
await().atMost(MAX_TEST_LENGTH, TimeUnit.MILLISECONDS)
.until(() -> producer.getEventsSentCount() >= EVENT_COUNT);
await().atMost(MAX_TEST_LENGTH, TimeUnit.MILLISECONDS)
.until(() -> subscriber.getEventsReceivedCount() >= EVENT_COUNT);
apexMain.shutdown();
await().atMost(30, TimeUnit.SECONDS).until(() -> !apexMain.isAlive());
subscriber.shutdown();
await().atMost(30, TimeUnit.SECONDS).until(() -> !subscriber.isAlive());
producer.shutdown();
await().atMost(30, TimeUnit.SECONDS).until(() -> !producer.isAlive());
assertEquals(producer.getEventsSentCount(), subscriber.getEventsReceivedCount());
}
private String getConditionedConfigFile(final String configurationFileName) {
try {
File tempConfigFile = File.createTempFile("Kafka_", ".json");
tempConfigFile.deleteOnExit();
String configAsString = TextFileUtils.getTextFileAsString(configurationFileName)
.replaceAll("localhost:39902", sharedKafkaTestResource.getKafkaConnectString());
TextFileUtils.putStringAsFile(configAsString, tempConfigFile.getCanonicalFile());
return tempConfigFile.getCanonicalPath();
} catch (IOException e) {
fail("test should not throw an exception");
return null;
}
}
}
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