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-rw-r--r--cps-service/pom.xml12
-rw-r--r--cps-service/src/main/java/org/onap/cps/events/EventsPublisher.java136
-rw-r--r--cps-service/src/test/groovy/org/onap/cps/events/EventsPublisherSpec.groovy194
3 files changed, 342 insertions, 0 deletions
diff --git a/cps-service/pom.xml b/cps-service/pom.xml
index 9c2ee86912..e661f3421a 100644
--- a/cps-service/pom.xml
+++ b/cps-service/pom.xml
@@ -128,6 +128,18 @@
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
</dependency>
+ <dependency>
+ <groupId>io.cloudevents</groupId>
+ <artifactId>cloudevents-json-jackson</artifactId>
+ </dependency>
+ <dependency>
+ <groupId>io.cloudevents</groupId>
+ <artifactId>cloudevents-kafka</artifactId>
+ </dependency>
+ <dependency>
+ <groupId>io.cloudevents</groupId>
+ <artifactId>cloudevents-spring</artifactId>
+ </dependency>
<!-- T E S T D E P E N D E N C I E S -->
<dependency>
<groupId>org.springframework</groupId>
diff --git a/cps-service/src/main/java/org/onap/cps/events/EventsPublisher.java b/cps-service/src/main/java/org/onap/cps/events/EventsPublisher.java
new file mode 100644
index 0000000000..8023fbfb25
--- /dev/null
+++ b/cps-service/src/main/java/org/onap/cps/events/EventsPublisher.java
@@ -0,0 +1,136 @@
+/*
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2022-2024 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.events;
+
+import io.cloudevents.CloudEvent;
+import java.util.Map;
+import java.util.concurrent.CompletableFuture;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.kafka.clients.producer.ProducerRecord;
+import org.apache.kafka.common.header.Headers;
+import org.apache.kafka.common.header.internals.RecordHeaders;
+import org.springframework.kafka.core.KafkaTemplate;
+import org.springframework.kafka.support.SendResult;
+import org.springframework.stereotype.Service;
+import org.springframework.util.SerializationUtils;
+
+/**
+ * EventsPublisher to publish events.
+ */
+
+@Slf4j
+@Service
+@RequiredArgsConstructor
+public class EventsPublisher<T> {
+
+ /**
+ * KafkaTemplate for legacy (non-cloud) events.
+ * Note: Cloud events should be used. This will be addressed as part of https://jira.onap.org/browse/CPS-1717.
+ */
+ private final KafkaTemplate<String, T> legacyKafkaEventTemplate;
+
+ private final KafkaTemplate<String, CloudEvent> cloudEventKafkaTemplate;
+
+ /**
+ * Generic CloudEvent publisher.
+ *
+ * @param topicName valid topic name
+ * @param eventKey message key
+ * @param event message payload
+ */
+ public void publishCloudEvent(final String topicName, final String eventKey, final CloudEvent event) {
+ final CompletableFuture<SendResult<String, CloudEvent>> eventFuture =
+ cloudEventKafkaTemplate.send(topicName, eventKey, event);
+ eventFuture.whenComplete((result, e) -> {
+ if (e == null) {
+ log.debug("Successfully published event to topic : {} , Event : {}", result.getRecordMetadata().topic(),
+ result.getProducerRecord().value());
+
+ } else {
+ log.error("Unable to publish event to topic : {} due to {}", topicName, e.getMessage());
+ }
+ });
+ }
+
+ /**
+ * Generic Event publisher.
+ * Note: Cloud events should be used. This will be addressed as part of https://jira.onap.org/browse/CPS-1717.
+ *
+ * @param topicName valid topic name
+ * @param eventKey message key
+ * @param event message payload
+ */
+ public void publishEvent(final String topicName, final String eventKey, final T event) {
+ final CompletableFuture<SendResult<String, T>> eventFuture =
+ legacyKafkaEventTemplate.send(topicName, eventKey, event);
+ handleLegacyEventCallback(topicName, eventFuture);
+ }
+
+ /**
+ * Generic Event Publisher with headers.
+ *
+ * @param topicName valid topic name
+ * @param eventKey message key
+ * @param eventHeaders event headers
+ * @param event message payload
+ */
+ public void publishEvent(final String topicName, final String eventKey, final Headers eventHeaders, final T event) {
+
+ final ProducerRecord<String, T> producerRecord =
+ new ProducerRecord<>(topicName, null, eventKey, event, eventHeaders);
+ final CompletableFuture<SendResult<String, T>> eventFuture = legacyKafkaEventTemplate.send(producerRecord);
+ handleLegacyEventCallback(topicName, eventFuture);
+ }
+
+ /**
+ * Generic Event Publisher with headers.
+ *
+ * @param topicName valid topic name
+ * @param eventKey message key
+ * @param eventHeaders map of event headers
+ * @param event message payload
+ */
+ public void publishEvent(final String topicName, final String eventKey, final Map<String, Object> eventHeaders,
+ final T event) {
+
+ publishEvent(topicName, eventKey, convertToKafkaHeaders(eventHeaders), event);
+ }
+
+ private void handleLegacyEventCallback(final String topicName,
+ final CompletableFuture<SendResult<String, T>> eventFuture) {
+ eventFuture.whenComplete((result, e) -> {
+ if (e == null) {
+ log.debug("Successfully published event to topic : {} , Event : {}", result.getRecordMetadata().topic(),
+ result.getProducerRecord().value());
+ } else {
+ log.error("Unable to publish event to topic : {} due to {}", topicName, e.getMessage());
+ }
+ });
+ }
+
+ private Headers convertToKafkaHeaders(final Map<String, Object> eventMessageHeaders) {
+ final Headers eventHeaders = new RecordHeaders();
+ eventMessageHeaders.forEach((key, value) -> eventHeaders.add(key, SerializationUtils.serialize(value)));
+ return eventHeaders;
+ }
+
+}
diff --git a/cps-service/src/test/groovy/org/onap/cps/events/EventsPublisherSpec.groovy b/cps-service/src/test/groovy/org/onap/cps/events/EventsPublisherSpec.groovy
new file mode 100644
index 0000000000..fe67287dec
--- /dev/null
+++ b/cps-service/src/test/groovy/org/onap/cps/events/EventsPublisherSpec.groovy
@@ -0,0 +1,194 @@
+/*
+ * ============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.events
+
+import ch.qos.logback.classic.Level
+import ch.qos.logback.classic.Logger
+import ch.qos.logback.classic.spi.ILoggingEvent
+import ch.qos.logback.core.read.ListAppender
+import io.cloudevents.CloudEvent
+import org.apache.kafka.clients.producer.ProducerRecord
+import org.apache.kafka.clients.producer.RecordMetadata
+import org.apache.kafka.common.TopicPartition
+import org.apache.kafka.common.header.Headers
+import org.apache.kafka.common.header.internals.RecordHeader
+import org.apache.kafka.common.header.internals.RecordHeaders
+import org.junit.jupiter.api.AfterEach
+import org.junit.jupiter.api.BeforeEach
+import org.slf4j.LoggerFactory
+import org.springframework.kafka.core.KafkaTemplate
+import org.springframework.kafka.support.SendResult
+import org.springframework.util.SerializationUtils
+import spock.lang.Specification
+
+import java.util.concurrent.CompletableFuture
+
+class EventsPublisherSpec extends Specification {
+
+ def legacyKafkaTemplateMock = Mock(KafkaTemplate)
+ def mockCloudEventKafkaTemplate = Mock(KafkaTemplate)
+ def logger = Spy(ListAppender<ILoggingEvent>)
+
+ void setup() {
+ def setupLogger = ((Logger) LoggerFactory.getLogger(EventsPublisher.class))
+ setupLogger.setLevel(Level.DEBUG)
+ setupLogger.addAppender(logger)
+ logger.start()
+ }
+
+ void cleanup() {
+ ((Logger) LoggerFactory.getLogger(EventsPublisher.class)).detachAndStopAllAppenders()
+ }
+
+ def objectUnderTest = new EventsPublisher(legacyKafkaTemplateMock, mockCloudEventKafkaTemplate)
+
+ def 'Publish Cloud Event'() {
+ given: 'a successfully published event'
+ def eventFuture = CompletableFuture.completedFuture(
+ new SendResult(
+ new ProducerRecord('some-topic', 'some-value'),
+ new RecordMetadata(new TopicPartition('some-topic', 0), 0, 0, 0, 0, 0)
+ )
+ )
+ def someCloudEvent = Mock(CloudEvent)
+ 1 * mockCloudEventKafkaTemplate.send('some-topic', 'some-event-key', someCloudEvent) >> eventFuture
+ when: 'publishing the cloud event'
+ objectUnderTest.publishCloudEvent('some-topic', 'some-event-key', someCloudEvent)
+ then: 'the correct debug message is logged'
+ def lastLoggingEvent = logger.list[0]
+ assert lastLoggingEvent.level == Level.DEBUG
+ assert lastLoggingEvent.formattedMessage.contains('Successfully published event')
+ }
+
+ def 'Publish Cloud Event with Exception'() {
+ given: 'a failed event'
+ def eventFutureWithFailure = new CompletableFuture<SendResult<String, String>>()
+ eventFutureWithFailure.completeExceptionally(new RuntimeException('some exception'))
+ def someCloudEvent = Mock(CloudEvent)
+ 1 * mockCloudEventKafkaTemplate.send('some-topic', 'some-event-key', someCloudEvent) >> eventFutureWithFailure
+ when: 'publishing the cloud event'
+ objectUnderTest.publishCloudEvent('some-topic', 'some-event-key', someCloudEvent)
+ then: 'the correct error message is logged'
+ def lastLoggingEvent = logger.list[0]
+ assert lastLoggingEvent.level == Level.ERROR
+ assert lastLoggingEvent.formattedMessage.contains('Unable to publish event')
+ }
+
+ def 'Publish Legacy Event'() {
+ given: 'a successfully published event'
+ def eventFuture = CompletableFuture.completedFuture(
+ new SendResult(
+ new ProducerRecord('some-topic', 'some-value'),
+ new RecordMetadata(new TopicPartition('some-topic', 0), 0, 0, 0, 0, 0)
+ )
+ )
+ def someEvent = Mock(Object)
+ 1 * legacyKafkaTemplateMock.send('some-topic', 'some-event-key', someEvent) >> eventFuture
+ when: 'publishing the cloud event'
+ objectUnderTest.publishEvent('some-topic', 'some-event-key', someEvent)
+ then: 'the correct debug message is logged'
+ def lastLoggingEvent = logger.list[0]
+ assert lastLoggingEvent.level == Level.DEBUG
+ assert lastLoggingEvent.formattedMessage.contains('Successfully published event')
+ }
+
+ def 'Publish Legacy Event with Headers as Map'() {
+ given: 'a successfully published event'
+ def sampleEventHeaders = ['k1': SerializationUtils.serialize('v1')]
+ def eventFuture = CompletableFuture.completedFuture(
+ new SendResult(
+ new ProducerRecord('some-topic', 'some-value'),
+ new RecordMetadata(new TopicPartition('some-topic', 0), 0, 0, 0, 0, 0)
+ )
+ )
+ def someEvent = Mock(Object.class)
+ when: 'publishing the legacy event'
+ objectUnderTest.publishEvent('some-topic', 'some-event-key', sampleEventHeaders, someEvent)
+ then: 'event is published'
+ 1 * legacyKafkaTemplateMock.send(_) >> eventFuture
+ and: 'the correct debug message is logged'
+ def lastLoggingEvent = logger.list[0]
+ assert lastLoggingEvent.level == Level.DEBUG
+ assert lastLoggingEvent.formattedMessage.contains('Successfully published event')
+ }
+
+ def 'Publish Legacy Event with Record Headers'() {
+ given: 'a successfully published event'
+ def sampleEventHeaders = new RecordHeaders([new RecordHeader('k1', SerializationUtils.serialize('v1'))])
+ def sampleProducerRecord = new ProducerRecord('some-topic', null, 'some-key', 'some-value', sampleEventHeaders)
+ def eventFuture = CompletableFuture.completedFuture(
+ new SendResult(
+ sampleProducerRecord,
+ new RecordMetadata(new TopicPartition('some-topic', 0), 0, 0, 0, 0, 0)
+ )
+ )
+ def someEvent = Mock(Object.class)
+ when: 'publishing the legacy event'
+ objectUnderTest.publishEvent('some-topic', 'some-event-key', sampleEventHeaders, someEvent)
+ then: 'event is published'
+ 1 * legacyKafkaTemplateMock.send(_) >> eventFuture
+ and: 'the correct debug message is logged'
+ def lastLoggingEvent = logger.list[0]
+ assert lastLoggingEvent.level == Level.DEBUG
+ assert lastLoggingEvent.formattedMessage.contains('Successfully published event')
+ }
+
+ def 'Handle Legacy Event Callback'() {
+ given: 'an event is successfully published'
+ def eventFuture = CompletableFuture.completedFuture(
+ new SendResult(
+ new ProducerRecord('some-topic', 'some-value'),
+ new RecordMetadata(new TopicPartition('some-topic', 0), 0, 0, 0, 0, 0)
+ )
+ )
+ when: 'handling legacy event callback'
+ objectUnderTest.handleLegacyEventCallback('some-topic', eventFuture)
+ then: 'the correct debug message is logged'
+ def lastLoggingEvent = logger.list[0]
+ assert lastLoggingEvent.level == Level.DEBUG
+ assert lastLoggingEvent.formattedMessage.contains('Successfully published event')
+ }
+
+ def 'Handle Legacy Event Callback with Exception'() {
+ given: 'a failure to publish an event'
+ def eventFutureWithFailure = new CompletableFuture<SendResult<String, String>>()
+ eventFutureWithFailure.completeExceptionally(new RuntimeException('some exception'))
+ when: 'handling legacy event callback'
+ objectUnderTest.handleLegacyEventCallback('some-topic', eventFutureWithFailure)
+ then: 'the correct error message is logged'
+ def lastLoggingEvent = logger.list[0]
+ assert lastLoggingEvent.level == Level.ERROR
+ assert lastLoggingEvent.formattedMessage.contains('Unable to publish event')
+ }
+
+ def 'Convert to kafka headers'() {
+ given: 'Few key value pairs'
+ def someKeyValue = ['key1': 'value1', 'key2': 'value2']
+ when: 'we convert to headers'
+ def headers = objectUnderTest.convertToKafkaHeaders(someKeyValue)
+ then: 'it is correctly converted'
+ assert headers instanceof Headers
+ and: 'also has correct values'
+ assert headers[0].key() == 'key1'
+ assert headers[1].key() == 'key2'
+ }
+
+} \ No newline at end of file