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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2020 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.so.adapters.etsisol003adapter.pkgm.cache;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Optional;
import java.util.concurrent.ConcurrentHashMap;
import org.onap.so.adapters.etsisol003adapter.pkgm.PackageManagementConstants;
import org.onap.so.adapters.etsisol003adapter.pkgm.model.PkgmSubscriptionRequest;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.Cache;
import org.springframework.cache.CacheManager;
import org.springframework.stereotype.Service;
/**
* Implementation which provides methods for communicating with the cache
*
* @author Ronan Kenny (ronan.kenny@est.tech)
* @author Gareth Roper (gareth.roper@est.tech)
*/
@Service
public class PkgmCacheServiceProviderImpl extends AbstractCacheServiceProvider implements PkgmCacheServiceProvider {
private static final Logger LOGGER = LoggerFactory.getLogger(PkgmCacheServiceProviderImpl.class);
@Autowired
public PkgmCacheServiceProviderImpl(final CacheManager cacheManager) {
super(PackageManagementConstants.PACKAGE_MANAGEMENT_SUBSCRIPTION_CACHE, cacheManager);
}
@Override
public void addSubscription(final String subscriptionId, final PkgmSubscriptionRequest pkgmSubscriptionRequest) {
LOGGER.debug("Adding {} to cache with subscription id: {}", pkgmSubscriptionRequest, subscriptionId);
getCache().put(subscriptionId, pkgmSubscriptionRequest);
}
@Override
public Optional<PkgmSubscriptionRequest> getSubscription(final String subscriptionId) {
LOGGER.debug("Getting subscription from cache using Id: {}", subscriptionId);
final Cache cache = getCache();
final PkgmSubscriptionRequest cacheValue = cache.get(subscriptionId, PkgmSubscriptionRequest.class);
if (cacheValue != null) {
return Optional.of(cacheValue);
}
LOGGER.error("Unable to find Subscription in cache using Id: {}", subscriptionId);
return Optional.empty();
}
@Override
public Map<String, PkgmSubscriptionRequest> getSubscriptions() {
LOGGER.info("Getting all subscriptions from cache");
final Cache cache = getCache();
final Object nativeCache = cache.getNativeCache();
if (nativeCache instanceof ConcurrentHashMap) {
@SuppressWarnings("unchecked")
final ConcurrentHashMap<Object, Object> concurrentHashMap = (ConcurrentHashMap<Object, Object>) nativeCache;
final Map<String, PkgmSubscriptionRequest> result = new HashMap<>();
concurrentHashMap.keySet().forEach(key -> {
final Optional<PkgmSubscriptionRequest> optional = getSubscription(key.toString());
optional.ifPresent(pkgmSubscriptionRequest -> result.put(key.toString(), pkgmSubscriptionRequest));
});
return result;
}
LOGGER.error("Unable to find Subscriptions in cache");
return Collections.emptyMap();
}
@Override
public boolean deleteSubscription(final String subscriptionId) {
final Cache cache = getCache();
final Optional<PkgmSubscriptionRequest> optional = getSubscription(subscriptionId);
if (optional.isPresent()) {
cache.evict(subscriptionId);
return true;
}
return false;
}
@Override
public Optional<String> getSubscriptionId(final PkgmSubscriptionRequest pkgmSubscriptionRequest) {
final Cache cache = getCache();
final Object nativeCache = cache.getNativeCache();
if (nativeCache instanceof ConcurrentHashMap) {
@SuppressWarnings("unchecked")
final ConcurrentHashMap<Object, Object> concurrentHashMap = (ConcurrentHashMap<Object, Object>) nativeCache;
final Optional<Entry<Object, Object>> optional = concurrentHashMap.entrySet().stream()
.filter(entry -> entry.getValue().equals(pkgmSubscriptionRequest)).findAny();
if (optional.isPresent()) {
return Optional.of(optional.get().getKey().toString());
}
}
return Optional.empty();
}
}
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