1 files changed, 66 insertions, 0 deletions
diff --git a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/event/EventsPublisher.java b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/event/EventsPublisher.java
new file mode 100644
index 000000000..60d39db7a
--- /dev/null
+++ b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/event/EventsPublisher.java
@@ -0,0 +1,66 @@
+/*
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2022 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.ncmp.api.impl.event;
+
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.kafka.core.KafkaTemplate;
+import org.springframework.kafka.support.SendResult;
+import org.springframework.stereotype.Service;
+import org.springframework.util.concurrent.ListenableFuture;
+import org.springframework.util.concurrent.ListenableFutureCallback;
+
+/**
+ * EventsPublisher to publish events.
+ */
+
+@Slf4j
+@Service
+@RequiredArgsConstructor
+public class EventsPublisher<T> {
+
+    private final KafkaTemplate<String, T> eventKafkaTemplate;
+
+    /**
+     * LCM Event publisher.
+     *
+     * @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 ListenableFuture<SendResult<String, T>> eventFuture =
+                eventKafkaTemplate.send(topicName, eventKey, event);
+
+        eventFuture.addCallback(new ListenableFutureCallback<>() {
+            @Override
+            public void onFailure(final Throwable throwable) {
+                log.error("Unable to publish event to topic : {} due to {}", topicName, throwable.getMessage());
+            }
+
+            @Override
+            public void onSuccess(final SendResult<String, T> sendResult) {
+                log.debug("Successfully published event to topic : {} , Event : {}",
+                        sendResult.getRecordMetadata().topic(), sendResult.getProducerRecord().value());
+            }
+        });
+    }
+}