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/*
* ============LICENSE_START=======================================================
* Copyright (C) 2024 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.cmsubscription;
import static org.onap.cps.ncmp.api.impl.events.cmsubscription.model.CmNotificationSubscriptionStatus.PENDING;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import lombok.RequiredArgsConstructor;
import org.onap.cps.ncmp.api.impl.events.cmsubscription.model.CmNotificationSubscriptionStatus;
import org.onap.cps.ncmp.api.impl.events.cmsubscription.model.DmiCmNotificationSubscriptionDetails;
import org.onap.cps.ncmp.api.impl.events.cmsubscription.model.DmiCmNotificationSubscriptionPredicate;
import org.onap.cps.ncmp.api.impl.events.cmsubscription.service.CmNotificationSubscriptionPersistenceService;
import org.onap.cps.ncmp.api.impl.inventory.InventoryPersistence;
import org.onap.cps.ncmp.api.impl.operations.DatastoreType;
import org.onap.cps.ncmp.api.impl.yangmodels.YangModelCmHandle;
import org.onap.cps.ncmp.events.cmnotificationsubscription_merge1_0_0.client_to_ncmp.Predicate;
import org.springframework.stereotype.Component;
@Component
@RequiredArgsConstructor
public class DmiCmNotificationSubscriptionCacheHandler {
private final CmNotificationSubscriptionPersistenceService cmNotificationSubscriptionPersistenceService;
private final Map<String, Map<String, DmiCmNotificationSubscriptionDetails>> cmNotificationSubscriptionCache;
private final InventoryPersistence inventoryPersistence;
/**
* Adds new subscription to the subscription cache.
*
* @param subscriptionId subscription Id
* @param predicates subscription request predicates
*/
public void add(final String subscriptionId, final List<Predicate> predicates) {
cmNotificationSubscriptionCache.put(subscriptionId, createDmiCmNotificationSubscriptionsPerDmi(predicates));
}
/**
* Creates map of subscription details per DMI.
*
* @param predicates CM Subscription Create Request Predicates
* @return Map of DmiCmNotificationSubscription per DMI plugin
*/
public Map<String, DmiCmNotificationSubscriptionDetails> createDmiCmNotificationSubscriptionsPerDmi(
final List<Predicate> predicates) {
final Map<String, DmiCmNotificationSubscriptionDetails> dmiCmNotificationSubscriptionDetailsPerDmi =
new HashMap<>();
for (final Predicate requestPredicate : predicates) {
final List<String> targetFilter = requestPredicate.getTargetFilter();
final DatastoreType datastoreType = DatastoreType.fromDatastoreName(
requestPredicate.getScopeFilter().getDatastore().toString());
final Set<String> xpaths = new HashSet<>(requestPredicate.getScopeFilter().getXpathFilter());
final Map<String, Set<String>> targetCmHandlesByDmiMap = groupTargetCmHandleIdsByDmi(targetFilter);
for (final Map.Entry<String, Set<String>> targetCmHandlesByDmi: targetCmHandlesByDmiMap.entrySet()) {
final DmiCmNotificationSubscriptionPredicate dmiCmNotificationSubscriptionPredicate =
new DmiCmNotificationSubscriptionPredicate(targetCmHandlesByDmi.getValue(),
datastoreType, xpaths);
updateDmiCmNotificationSubscriptionDetailsPerDmi(targetCmHandlesByDmi.getKey(),
dmiCmNotificationSubscriptionPredicate,
dmiCmNotificationSubscriptionDetailsPerDmi);
}
}
return dmiCmNotificationSubscriptionDetailsPerDmi;
}
/**
* Update status in map of subscription details per DMI.
*
* @param subscriptionId String of subscription Id
* @param dmiServiceName String of dmiServiceName
* @param status String of status
*
*/
public void updateDmiCmNotificationSubscriptionStatusPerDmi(
final String subscriptionId, final String dmiServiceName, final CmNotificationSubscriptionStatus status) {
cmNotificationSubscriptionCache.get(subscriptionId).get(dmiServiceName)
.setCmNotificationSubscriptionStatus(status);
}
/**
* Persist map of subscription details per DMI.
*
* @param subscriptionId String of subscription Id
* @param dmiServiceName String of dmiServiceName
*
*/
public void persistIntoDatabasePerDmi(final String subscriptionId, final String dmiServiceName) {
final List<DmiCmNotificationSubscriptionPredicate> dmiCmNotificationSubscriptionPredicateList =
cmNotificationSubscriptionCache.get(subscriptionId).get(dmiServiceName)
.getDmiCmNotificationSubscriptionPredicates();
for (final DmiCmNotificationSubscriptionPredicate dmiCmNotificationSubscriptionPredicate:
dmiCmNotificationSubscriptionPredicateList) {
final DatastoreType datastoreType = dmiCmNotificationSubscriptionPredicate.getDatastoreType();
final Set<String> cmHandles = dmiCmNotificationSubscriptionPredicate.getTargetCmHandleIds();
final Set<String> xpaths = dmiCmNotificationSubscriptionPredicate.getXpaths();
for (final String cmHandle: cmHandles) {
for (final String xpath: xpaths) {
cmNotificationSubscriptionPersistenceService.addOrUpdateCmNotificationSubscription(datastoreType,
cmHandle, xpath, subscriptionId);
}
}
}
}
private void updateDmiCmNotificationSubscriptionDetailsPerDmi(
final String dmiServiceName,
final DmiCmNotificationSubscriptionPredicate dmiCmNotificationSubscriptionPredicate,
final Map<String, DmiCmNotificationSubscriptionDetails> dmiCmNotificationSubscriptionDetailsPerDmi) {
if (dmiCmNotificationSubscriptionDetailsPerDmi.containsKey(dmiServiceName)) {
dmiCmNotificationSubscriptionDetailsPerDmi.get(dmiServiceName)
.getDmiCmNotificationSubscriptionPredicates().add(dmiCmNotificationSubscriptionPredicate);
} else {
dmiCmNotificationSubscriptionDetailsPerDmi.put(dmiServiceName,
new DmiCmNotificationSubscriptionDetails(
new ArrayList<>(List.of(dmiCmNotificationSubscriptionPredicate)),
PENDING));
}
}
private Map<String, Set<String>> groupTargetCmHandleIdsByDmi(final List<String> targetCmHandleIds) {
final Map<String, Set<String>> targetCmHandlesByDmiServiceNames = new HashMap<>();
final Collection<YangModelCmHandle> yangModelCmHandles =
inventoryPersistence.getYangModelCmHandles(targetCmHandleIds);
for (final YangModelCmHandle yangModelCmHandle : yangModelCmHandles) {
final String dmiServiceName = yangModelCmHandle.getDmiServiceName();
targetCmHandlesByDmiServiceNames.putIfAbsent(dmiServiceName, new HashSet<>());
targetCmHandlesByDmiServiceNames.get(dmiServiceName).add(yangModelCmHandle.getId());
}
return targetCmHandlesByDmiServiceNames;
}
}
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