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/*
* Copyright 2016-2017, Nokia Corporation
*
* 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.
*/
package org.onap.vfc.nfvo.driver.vnfm.svnfm.nokia.onap.direct.notification;
import com.nokia.cbam.lcm.v32.model.AffectedVirtualLink;
import com.nokia.cbam.lcm.v32.model.OperationExecution;
import com.nokia.cbam.lcm.v32.model.VnfLifecycleChangeNotification;
import java.util.Collection;
import java.util.HashSet;
import java.util.Optional;
import java.util.Set;
import org.onap.vfc.nfvo.driver.vnfm.svnfm.nokia.api.INotificationSender;
import org.onap.vfc.nfvo.driver.vnfm.svnfm.nokia.vnfm.notification.ReportedAffectedConnectionPoints;
import org.onap.vfc.nfvo.driver.vnfm.svnfm.nokia.vnfm.notification.ReportedAffectedCp;
import org.slf4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import static java.util.Optional.empty;
import static com.google.common.collect.Iterables.filter;
import static com.google.common.collect.Iterables.tryFind;
import static com.nokia.cbam.lcm.v32.model.ChangeType.*;
import static com.nokia.cbam.lcm.v32.model.OperationStatus.STARTED;
import static org.onap.vfc.nfvo.driver.vnfm.svnfm.nokia.onap.direct.notification.LInterfaceManager.buildUrl;
import static org.slf4j.LoggerFactory.getLogger;
import static org.springframework.util.StringUtils.isEmpty;
/**
* Responsible for providing information related to the VNFM from VF-C source
*/
@Component
public class AAINotificationProcessor implements INotificationSender {
private static Logger logger = getLogger(AAINotificationProcessor.class);
private final GenericVnfManager genericVnfManager;
private final L3NetworkManager l3NetworkManager;
private final LInterfaceManager lInterfaceManager;
private final VnfcManager vnfcManager;
private final VserverManager vserverManager;
@Autowired
AAINotificationProcessor(GenericVnfManager genericVnfManager, L3NetworkManager l3NetworkManager, LInterfaceManager lInterfaceManager, VnfcManager vnfcManager, VserverManager vserverManager) {
this.genericVnfManager = genericVnfManager;
this.l3NetworkManager = l3NetworkManager;
this.lInterfaceManager = lInterfaceManager;
this.vnfcManager = vnfcManager;
this.vserverManager = vserverManager;
}
@Override
public void processNotification(VnfLifecycleChangeNotification receivedNotification, OperationExecution operationExecution, Optional<ReportedAffectedConnectionPoints> affectedConnectionPoints, String vimId, String vnfmId) {
boolean inMaintenance = STARTED.equals(receivedNotification.getStatus());
genericVnfManager.createOrUpdate(receivedNotification.getVnfInstanceId(), inMaintenance, vnfmId, empty());
addOrUpdateVls(receivedNotification, vimId);
addOrUpdateVnfcs(receivedNotification, vimId, inMaintenance);
processCps(receivedNotification, affectedConnectionPoints, vimId, inMaintenance);
removeVnfcs(receivedNotification, vimId);
removeVls(receivedNotification);
logger.info("Notification processed successfully");
}
private void removeVls(VnfLifecycleChangeNotification receivedNotification) {
for (AffectedVirtualLink removedVl : filter(receivedNotification.getAffectedVirtualLinks(), affectedVirtualLink -> affectedVirtualLink.getChangeType().equals(REMOVED))) {
l3NetworkManager.delete(receivedNotification.getVnfInstanceId(), removedVl);
}
}
private void removeVnfcs(VnfLifecycleChangeNotification receivedNotification, String vimId) {
for (com.nokia.cbam.lcm.v32.model.AffectedVnfc removedVnfc : filter(receivedNotification.getAffectedVnfcs(), vnfc -> REMOVED.equals(vnfc.getChangeType()))) {
vnfcManager.delete(receivedNotification.getVnfInstanceId(), removedVnfc);
vserverManager.delete(vimId, removedVnfc);
}
}
private void processCps(VnfLifecycleChangeNotification receivedNotification, Optional<ReportedAffectedConnectionPoints> affectedConnectionPoints, String vimId, boolean inMaintenance) {
if (affectedConnectionPoints.isPresent()) {
for (ReportedAffectedCp removedCp : collectCpsToBeDeleted(vimId, affectedConnectionPoints.get())) {
lInterfaceManager.delete(vimId, removedCp);
}
//these can only be added or modified because if something is in the post CPS it can not be removed
//since it is present after the operation
for (ReportedAffectedCp affectedCp : affectedConnectionPoints.get().getPost()) {
if (!isEmpty(affectedCp.getServerProviderId())) {
lInterfaceManager.update(receivedNotification.getVnfInstanceId(), vimId, affectedCp, inMaintenance);
} else {
logger.warn("The changed {} connection point is not linked to any server", affectedCp.getCpId());
}
}
} else {
logger.warn("The changed connection points are not present in VNF with {} identifier", receivedNotification.getVnfInstanceId());
}
}
private void addOrUpdateVnfcs(VnfLifecycleChangeNotification receivedNotification, String vimId, boolean inMaintenance) {
for (com.nokia.cbam.lcm.v32.model.AffectedVnfc affectedVnfc : receivedNotification.getAffectedVnfcs()) {
if (affectedVnfc.getChangeType() == MODIFIED || affectedVnfc.getChangeType() == ADDED) {
vserverManager.update(vimId, receivedNotification.getVnfInstanceId(), affectedVnfc, receivedNotification.getAffectedVirtualStorages(), inMaintenance);
vnfcManager.update(vimId, VserverManager.getTenantId(affectedVnfc), receivedNotification.getVnfInstanceId(), affectedVnfc, inMaintenance);
}
}
}
private void addOrUpdateVls(VnfLifecycleChangeNotification receivedNotification, String vimId) {
for (AffectedVirtualLink affectedVirtualLink : receivedNotification.getAffectedVirtualLinks()) {
if ((affectedVirtualLink.getChangeType() == MODIFIED) || (affectedVirtualLink.getChangeType() == ADDED)) {
l3NetworkManager.update(vimId, receivedNotification.getVnfInstanceId(), affectedVirtualLink);
}
}
}
/**
* The ports that are present in the pre, but not present in the post are
* removed regardless of the "removed" flag being present in the pre, because
* that only signals the remove intention, but does not actually mean that
* the resource have been removed
*/
private Collection<ReportedAffectedCp> collectCpsToBeDeleted(String vimId, ReportedAffectedConnectionPoints cps) {
Set<ReportedAffectedCp> cpsToRemove = new HashSet<>();
for (ReportedAffectedCp cpBeforeOperation : cps.getPre()) {
if (!isEmpty(cpBeforeOperation.getServerProviderId())) {
String originalResource = buildUrl(vimId, cpBeforeOperation);
if (!tryFind(cps.getPost(), cpAfterOperation -> originalResource.equals(buildUrl(vimId, cpAfterOperation))).isPresent()) {
cpsToRemove.add(cpBeforeOperation);
}
}
}
return cpsToRemove;
}
}
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