1 files changed, 100 insertions, 0 deletions

diff --git a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/events/lcm/LcmEventsCreator.java b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/events/lcm/LcmEventsCreator.java
new file mode 100644
index 000000000..a72e664dc
--- /dev/null
+++ b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/events/lcm/LcmEventsCreator.java
@@ -0,0 +1,100 @@
+/*
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2022-2023 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.events.lcm;
+
+import java.util.UUID;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+import lombok.extern.slf4j.Slf4j;
+import org.onap.cps.ncmp.api.impl.utils.EventDateTimeFormatter;
+import org.onap.cps.ncmp.api.models.NcmpServiceCmHandle;
+import org.onap.ncmp.cmhandle.event.lcm.Event;
+import org.onap.ncmp.cmhandle.event.lcm.LcmEvent;
+import org.onap.ncmp.cmhandle.event.lcm.Values;
+import org.springframework.stereotype.Component;
+
+
+/**
+ * LcmEventsCreator to create LcmEvent based on relevant operation.
+ */
+@Slf4j
+@Component
+public class LcmEventsCreator {
+
+    /**
+     * Populate Lifecycle Management Event.
+     *
+     * @param cmHandleId                  cm handle identifier
+     * @param targetNcmpServiceCmHandle   target ncmp service cmhandle
+     * @param existingNcmpServiceCmHandle existing ncmp service cmhandle
+     * @return Populated LcmEvent
+     */
+    public LcmEvent populateLcmEvent(final String cmHandleId, final NcmpServiceCmHandle targetNcmpServiceCmHandle,
+            final NcmpServiceCmHandle existingNcmpServiceCmHandle) {
+        return createLcmEvent(cmHandleId, targetNcmpServiceCmHandle, existingNcmpServiceCmHandle);
+    }
+
+    private LcmEvent createLcmEvent(final String cmHandleId, final NcmpServiceCmHandle targetNcmpServiceCmHandle,
+            final NcmpServiceCmHandle existingNcmpServiceCmHandle) {
+        final LcmEventType lcmEventType =
+                LcmEventsCreatorHelper.determineEventType(targetNcmpServiceCmHandle, existingNcmpServiceCmHandle);
+        final LcmEvent lcmEvent = lcmEventHeader(cmHandleId, lcmEventType);
+        lcmEvent.setEvent(
+                lcmEventPayload(cmHandleId, targetNcmpServiceCmHandle, existingNcmpServiceCmHandle, lcmEventType));
+        return lcmEvent;
+    }
+
+    private Event lcmEventPayload(final String eventCorrelationId, final NcmpServiceCmHandle targetNcmpServiceCmHandle,
+            final NcmpServiceCmHandle existingNcmpServiceCmHandle, final LcmEventType lcmEventType) {
+        final Event event = new Event();
+        event.setCmHandleId(eventCorrelationId);
+        final CmHandleValuesHolder cmHandleValuesHolder =
+                LcmEventsCreatorHelper.determineEventValues(targetNcmpServiceCmHandle, existingNcmpServiceCmHandle,
+                        lcmEventType);
+        event.setOldValues(cmHandleValuesHolder.getOldValues());
+        event.setNewValues(cmHandleValuesHolder.getNewValues());
+
+        return event;
+    }
+
+    private LcmEvent lcmEventHeader(final String eventCorrelationId, final LcmEventType lcmEventType) {
+        final LcmEvent lcmEvent = new LcmEvent();
+        lcmEvent.setEventId(UUID.randomUUID().toString());
+        lcmEvent.setEventCorrelationId(eventCorrelationId);
+        lcmEvent.setEventTime(EventDateTimeFormatter.getCurrentDateTime());
+        lcmEvent.setEventSource("org.onap.ncmp");
+        lcmEvent.setEventType(lcmEventType.getEventType());
+        lcmEvent.setEventSchema("org.onap.ncmp:cmhandle-lcm-event");
+        lcmEvent.setEventSchemaVersion("1.0");
+        return lcmEvent;
+    }
+
+    @NoArgsConstructor
+    @Getter
+    @Setter
+    static class CmHandleValuesHolder {
+
+        private Values oldValues;
+        private Values newValues;
+    }
+
+}
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