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-rw-r--r--integration-test/src/test/java/org/onap/cps/integration/KafkaTestContainer.java86
1 files changed, 86 insertions, 0 deletions
diff --git a/integration-test/src/test/java/org/onap/cps/integration/KafkaTestContainer.java b/integration-test/src/test/java/org/onap/cps/integration/KafkaTestContainer.java
new file mode 100644
index 0000000000..d41f752912
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+++ b/integration-test/src/test/java/org/onap/cps/integration/KafkaTestContainer.java
@@ -0,0 +1,86 @@
+/*
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2024 Nordix Foundation.
+ * ================================================================================
+ * 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.cps.integration;
+
+import java.util.HashMap;
+import java.util.Map;
+import org.apache.kafka.clients.consumer.ConsumerConfig;
+import org.apache.kafka.clients.consumer.KafkaConsumer;
+import org.apache.kafka.common.serialization.StringDeserializer;
+import org.testcontainers.containers.KafkaContainer;
+import org.testcontainers.utility.DockerImageName;
+
+/**
+ * The Apache Kafka test container wrapper.
+ * Allow to use specific image and version with Singleton design pattern.
+ * This ensures only one instance of Kafka container across the integration tests.
+ * Avoid unnecessary resource and time consumption.
+ */
+public class KafkaTestContainer extends KafkaContainer {
+
+ private static final String IMAGE_NAME_AND_VERSION = "registry.nordix.org/onaptest/confluentinc/cp-kafka:6.2.1";
+
+ private static KafkaTestContainer kafkaTestContainer;
+
+ private KafkaTestContainer() {
+ super(DockerImageName.parse(IMAGE_NAME_AND_VERSION).asCompatibleSubstituteFor("confluentinc/cp-kafka"));
+ }
+
+ /**
+ * Provides an instance of Kafka test container wrapper.
+ * This will allow to initialize Kafka messaging support before any integration test run.
+ *
+ * @return KafkaTestContainer the unique Kafka instance
+ */
+ public static KafkaTestContainer getInstance() {
+ if (kafkaTestContainer == null) {
+ kafkaTestContainer = new KafkaTestContainer();
+ Runtime.getRuntime().addShutdownHook(new Thread(kafkaTestContainer::close));
+ }
+ return kafkaTestContainer;
+ }
+
+ public static KafkaConsumer getConsumer(final String consumerGroupId, final Object valueDeserializer) {
+ return new KafkaConsumer<>(consumerProperties(consumerGroupId, valueDeserializer));
+ }
+
+ @Override
+ public void start() {
+ super.start();
+ System.setProperty("spring.kafka.properties.bootstrap.servers", kafkaTestContainer.getBootstrapServers());
+ }
+
+ @Override
+ public void stop() {
+ // Method intentionally left blank
+ }
+
+ private static Map<String, Object> consumerProperties(final String consumerGroupId,
+ final Object valueDeserializer) {
+ final Map<String, Object> configProps = new HashMap<>();
+ configProps.put(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG, kafkaTestContainer.getBootstrapServers());
+ configProps.put(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class);
+ configProps.put(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, valueDeserializer);
+ configProps.put(ConsumerConfig.AUTO_OFFSET_RESET_CONFIG, "earliest");
+ configProps.put(ConsumerConfig.GROUP_ID_CONFIG, consumerGroupId);
+ return configProps;
+ }
+
+}