1 files changed, 79 insertions, 0 deletions
diff --git a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/impl/inventory/sync/lcm/LcmEventsCmHandleStateHandlerAsyncHelper.java b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/impl/inventory/sync/lcm/LcmEventsCmHandleStateHandlerAsyncHelper.java
new file mode 100644
index 000000000..cf7921c35
--- /dev/null
+++ b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/impl/inventory/sync/lcm/LcmEventsCmHandleStateHandlerAsyncHelper.java
@@ -0,0 +1,79 @@
+/*
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 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.impl.inventory.sync.lcm;
+
+import java.util.Collection;
+import lombok.RequiredArgsConstructor;
+import org.onap.cps.ncmp.api.inventory.models.NcmpServiceCmHandle;
+import org.onap.cps.ncmp.events.lcm.v1.LcmEvent;
+import org.onap.cps.ncmp.events.lcm.v1.LcmEventHeader;
+import org.onap.cps.ncmp.impl.inventory.models.YangModelCmHandle;
+import org.onap.cps.ncmp.impl.utils.YangDataConverter;
+import org.springframework.scheduling.annotation.Async;
+import org.springframework.stereotype.Service;
+
+@Service
+@RequiredArgsConstructor
+public class LcmEventsCmHandleStateHandlerAsyncHelper {
+
+    private final LcmEventsCreator lcmEventsCreator;
+    private final LcmEventsService lcmEventsService;
+
+    /**
+     * Publish LCM Event in asynchronous manner.
+     *
+     * @param targetNcmpServiceCmHandle  target NcmpServiceCmHandle
+     * @param currentNcmpServiceCmHandle current NcmpServiceCmHandle
+     */
+    @Async("notificationExecutor")
+    public void publishLcmEventAsynchronously(final NcmpServiceCmHandle targetNcmpServiceCmHandle,
+                                              final NcmpServiceCmHandle currentNcmpServiceCmHandle) {
+        publishLcmEvent(targetNcmpServiceCmHandle, currentNcmpServiceCmHandle);
+    }
+
+    /**
+     * Publish LcmEvent in batches and in asynchronous manner.
+     *
+     * @param cmHandleTransitionPairs Pair of existing and modified cm handle represented as YangModelCmHandle
+     */
+    @Async("notificationExecutor")
+    public void publishLcmEventBatchAsynchronously(
+            final Collection<LcmEventsCmHandleStateHandlerImpl.CmHandleTransitionPair> cmHandleTransitionPairs) {
+        cmHandleTransitionPairs.forEach(cmHandleTransitionPair -> publishLcmEvent(
+                toNcmpServiceCmHandle(cmHandleTransitionPair.getTargetYangModelCmHandle()),
+                toNcmpServiceCmHandle(cmHandleTransitionPair.getCurrentYangModelCmHandle())));
+    }
+
+    private void publishLcmEvent(final NcmpServiceCmHandle targetNcmpServiceCmHandle,
+                                 final NcmpServiceCmHandle existingNcmpServiceCmHandle) {
+        final String cmHandleId = targetNcmpServiceCmHandle.getCmHandleId();
+        final LcmEventHeader lcmEventHeader =
+                lcmEventsCreator.populateLcmEventHeader(cmHandleId, targetNcmpServiceCmHandle,
+                        existingNcmpServiceCmHandle);
+        final LcmEvent lcmEvent =
+                lcmEventsCreator.populateLcmEvent(cmHandleId, targetNcmpServiceCmHandle, existingNcmpServiceCmHandle);
+        lcmEventsService.publishLcmEvent(cmHandleId, lcmEvent, lcmEventHeader);
+    }
+
+    private static NcmpServiceCmHandle toNcmpServiceCmHandle(final YangModelCmHandle yangModelCmHandle) {
+        return YangDataConverter.toNcmpServiceCmHandle(yangModelCmHandle);
+    }
+}