cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/inventory/sync/DataSyncWatchdog.java

   1 /*
   2  *  ============LICENSE_START=======================================================
   3  *  Copyright (C) 2022-2023 Nordix Foundation
   4  *  ================================================================================
   5  *  Licensed under the Apache License, Version 2.0 (the "License");
   6  *  you may not use this file except in compliance with the License.
   7  *  You may obtain a copy of the License at
   8  *
   9  *        http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  *  Unless required by applicable law or agreed to in writing, software
  12  *  distributed under the License is distributed on an "AS IS" BASIS,
  13  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  *  See the License for the specific language governing permissions and
  15  *  limitations under the License.
  16  *
  17  *  SPDX-License-Identifier: Apache-2.0
  18  *  ============LICENSE_END=========================================================
  19  */
  20
  21 package org.onap.cps.ncmp.api.impl.inventory.sync;
  22
  23 import static org.onap.cps.ncmp.api.impl.ncmppersistence.NcmpPersistence.NFP_OPERATIONAL_DATASTORE_DATASPACE_NAME;
  24
  25 import com.hazelcast.map.IMap;
  26 import java.time.OffsetDateTime;
  27 import java.util.concurrent.TimeUnit;
  28 import java.util.function.Consumer;
  29 import lombok.RequiredArgsConstructor;
  30 import lombok.extern.slf4j.Slf4j;
  31 import org.onap.cps.api.CpsDataService;
  32 import org.onap.cps.ncmp.api.impl.config.embeddedcache.SynchronizationCacheConfig;
  33 import org.onap.cps.ncmp.api.impl.inventory.CompositeState;
  34 import org.onap.cps.ncmp.api.impl.inventory.DataStoreSyncState;
  35 import org.onap.cps.ncmp.api.impl.inventory.InventoryPersistence;
  36 import org.springframework.scheduling.annotation.Scheduled;
  37 import org.springframework.stereotype.Service;
  38
  39 @Slf4j
  40 @RequiredArgsConstructor
  41 @Service
  42 public class DataSyncWatchdog {
  43
  44     private static final boolean DATA_SYNC_IN_PROGRESS = false;
  45     private static final boolean DATA_SYNC_DONE = true;
  46
  47     private final InventoryPersistence inventoryPersistence;
  48
  49     private final CpsDataService cpsDataService;
  50
  51     private final SyncUtils syncUtils;
  52
  53     private final IMap<String, Boolean> dataSyncSemaphores;
  54
  55     /**
  56      * Execute Cm Handle poll which queries the cm handle state in 'READY' and Operational Datastore Sync State in
  57      * 'UNSYNCHRONIZED'.
  58      */
  59     @Scheduled(fixedDelayString = "${ncmp.timers.cm-handle-data-sync.sleep-time-ms:30000}")
  60     public void executeUnSynchronizedReadyCmHandlePoll() {
  61         syncUtils.getUnsynchronizedReadyCmHandles().forEach(unSynchronizedReadyCmHandle -> {
  62             final String cmHandleId = unSynchronizedReadyCmHandle.getId();
  63             if (hasPushedIntoSemaphoreMap(cmHandleId)) {
  64                 log.debug("Executing data sync on {}", cmHandleId);
  65                 final CompositeState compositeState = inventoryPersistence
  66                         .getCmHandleState(cmHandleId);
  67                 final String resourceData = syncUtils.getResourceData(cmHandleId);
  68                 if (resourceData == null) {
  69                     log.debug("Error retrieving resource data for Cm-Handle: {}", cmHandleId);
  70                 } else {
  71                     cpsDataService.saveData(NFP_OPERATIONAL_DATASTORE_DATASPACE_NAME, cmHandleId,
  72                             resourceData, OffsetDateTime.now());
  73                     setSyncStateToSynchronized().accept(compositeState);
  74                     inventoryPersistence.saveCmHandleState(cmHandleId, compositeState);
  75                     updateDataSyncSemaphoreMap(cmHandleId);
  76                 }
  77             } else {
  78                 log.debug("{} already processed by another instance", cmHandleId);
  79             }
  80         });
  81         log.debug("No Cm-Handles currently found in READY State and Operational Sync State is UNSYNCHRONIZED");
  82     }
  83
  84     private Consumer<CompositeState> setSyncStateToSynchronized() {
  85         return compositeState -> {
  86             compositeState.setLastUpdateTimeNow();
  87             compositeState.getDataStores()
  88                     .setOperationalDataStore(CompositeState.Operational.builder()
  89                             .dataStoreSyncState(DataStoreSyncState.SYNCHRONIZED)
  90                             .lastSyncTime(CompositeState.nowInSyncTimeFormat()).build());
  91         };
  92     }
  93
  94     private void updateDataSyncSemaphoreMap(final String cmHandleId) {
  95         dataSyncSemaphores.replace(cmHandleId, DATA_SYNC_DONE);
  96     }
  97
  98     private boolean hasPushedIntoSemaphoreMap(final String cmHandleId) {
  99         return dataSyncSemaphores.putIfAbsent(cmHandleId, DATA_SYNC_IN_PROGRESS,
 100                 SynchronizationCacheConfig.DATA_SYNC_SEMAPHORE_TTL_SECS, TimeUnit.SECONDS) == null;
 101     }
 102 }