adapters/etsi-sol003-adapter/etsi-sol003-package-management/etsi-sol003-package-management-adapter/src/main/java/org/onap/so/adapters/vnfmadapter/packagemanagement/subscriptionmanagement/cache/PackageManagementCacheServiceProviderImpl.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  *  Copyright (C) 2020 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.so.adapters.vnfmadapter.packagemanagement.subscriptionmanagement.cache;
  22
  23 import java.util.Collections;
  24 import java.util.HashMap;
  25 import java.util.Map;
  26 import java.util.Map.Entry;
  27 import java.util.Optional;
  28 import java.util.concurrent.ConcurrentHashMap;
  29 import org.onap.so.adapters.vnfmadapter.PackageManagementConstants;
  30 import org.onap.so.adapters.vnfmadapter.packagemanagement.model.PkgmSubscriptionRequest;
  31 import org.slf4j.Logger;
  32 import org.slf4j.LoggerFactory;
  33 import org.springframework.beans.factory.annotation.Autowired;
  34 import org.springframework.cache.Cache;
  35 import org.springframework.cache.CacheManager;
  36 import org.springframework.stereotype.Service;
  37
  38 /**
  39  * Implementation which provides methods for communicating with the cache
  40  *
  41  * @author Ronan Kenny (ronan.kenny@est.tech)
  42  * @author Gareth Roper (gareth.roper@est.tech)
  43  */
  44 @Service
  45 public class PackageManagementCacheServiceProviderImpl extends AbstractCacheServiceProvider
  46         implements PackageManagementCacheServiceProvider {
  47
  48     private static final Logger LOGGER = LoggerFactory.getLogger(PackageManagementCacheServiceProviderImpl.class);
  49
  50     @Autowired
  51     public PackageManagementCacheServiceProviderImpl(final CacheManager cacheManager) {
  52         super(PackageManagementConstants.PACKAGE_MANAGEMENT_SUBSCRIPTION_CACHE, cacheManager);
  53     }
  54
  55     @Override
  56     public void addSubscription(final String subscriptionId, final PkgmSubscriptionRequest pkgmSubscriptionRequest) {
  57         LOGGER.debug("Adding {} to cache with subscription id: {}", pkgmSubscriptionRequest, subscriptionId);
  58         getCache().put(subscriptionId, pkgmSubscriptionRequest);
  59     }
  60
  61     @Override
  62     public Optional<PkgmSubscriptionRequest> getSubscription(final String subscriptionId) {
  63         LOGGER.debug("Getting subscription from cache using Id: {}", subscriptionId);
  64         final Cache cache = getCache();
  65         final PkgmSubscriptionRequest cacheValue = cache.get(subscriptionId, PkgmSubscriptionRequest.class);
  66         if (cacheValue != null) {
  67             return Optional.of(cacheValue);
  68         }
  69         LOGGER.error("Unable to find Subscription in cache using Id: {}", subscriptionId);
  70         return Optional.empty();
  71     }
  72
  73     @Override
  74     public Map<String, PkgmSubscriptionRequest> getSubscriptions() {
  75         LOGGER.info("Getting all subscriptions from cache");
  76         final Cache cache = getCache();
  77
  78         final Object nativeCache = cache.getNativeCache();
  79         if (nativeCache instanceof ConcurrentHashMap) {
  80             @SuppressWarnings("unchecked")
  81             final ConcurrentHashMap<Object, Object> concurrentHashMap = (ConcurrentHashMap<Object, Object>) nativeCache;
  82             final Map<String, PkgmSubscriptionRequest> result = new HashMap<>();
  83             concurrentHashMap.keySet().forEach(key -> {
  84                 final Optional<PkgmSubscriptionRequest> optional = getSubscription(key.toString());
  85                 optional.ifPresent(pkgmSubscriptionRequest -> result.put(key.toString(), pkgmSubscriptionRequest));
  86             });
  87             return result;
  88         }
  89         LOGGER.error("Unable to find Subscriptions in cache");
  90         return Collections.emptyMap();
  91     }
  92
  93     @Override
  94     public boolean deleteSubscription(final String subscriptionId) {
  95         final Cache cache = getCache();
  96         final Optional<PkgmSubscriptionRequest> optional = getSubscription(subscriptionId);
  97         if (optional.isPresent()) {
  98             cache.evict(subscriptionId);
  99             return true;
 100         }
 101         return false;
 102     }
 103
 104     @Override
 105     public Optional<String> getSubscriptionId(final PkgmSubscriptionRequest pkgmSubscriptionRequest) {
 106         final Cache cache = getCache();
 107         final Object nativeCache = cache.getNativeCache();
 108         if (nativeCache instanceof ConcurrentHashMap) {
 109             @SuppressWarnings("unchecked")
 110             final ConcurrentHashMap<Object, Object> concurrentHashMap = (ConcurrentHashMap<Object, Object>) nativeCache;
 111             final Optional<Entry<Object, Object>> optional = concurrentHashMap.entrySet().stream()
 112                     .filter(entry -> entry.getValue().equals(pkgmSubscriptionRequest)).findAny();
 113             if (optional.isPresent()) {
 114                 return Optional.of(optional.get().getKey().toString());
 115             }
 116         }
 117         return Optional.empty();
 118     }
 119 }