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/*
* Copyright 2017-2020 ZTE 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.holmes.common.dmaap;
import org.onap.holmes.common.aai.AaiQuery;
import org.onap.holmes.common.aai.entity.RelationshipList.Relationship;
import org.onap.holmes.common.aai.entity.VmEntity;
import org.onap.holmes.common.aai.entity.VnfEntity;
import org.onap.holmes.common.api.stat.VesAlarm;
import org.onap.holmes.common.dcae.DcaeConfigurationsCache;
import org.onap.holmes.common.dmaap.entity.PolicyMsg;
import org.onap.holmes.common.dmaap.entity.PolicyMsg.EVENT_STATUS;
import org.onap.holmes.common.dmaap.store.ClosedLoopControlNameCache;
import org.onap.holmes.common.dmaap.store.UniqueRequestIdCache;
import org.onap.holmes.common.exception.CorrelationException;
import org.onap.holmes.common.utils.GsonUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.Map.Entry;
import java.util.Optional;
import java.util.UUID;
@Service
public class DmaapService {
private static final Logger log = LoggerFactory.getLogger(DmaapService.class);
private AaiQuery aaiQuery;
private ClosedLoopControlNameCache closedLoopControlNameCache;
private UniqueRequestIdCache uniqueRequestIdCache;
@Autowired
public void setAaiQuery(AaiQuery aaiQuery) {
this.aaiQuery = aaiQuery;
}
@Autowired
public void setClosedLoopControlNameCache(ClosedLoopControlNameCache closedLoopControlNameCache) {
this.closedLoopControlNameCache = closedLoopControlNameCache;
}
@Autowired
public void setUniqueRequestIdCache(UniqueRequestIdCache uniqueRequestIdCache) {
this.uniqueRequestIdCache = uniqueRequestIdCache;
}
public void publishPolicyMsg(PolicyMsg policyMsg, String dmaapConfigKey) {
try {
Publisher publisher = new Publisher();
publisher.setUrl(DcaeConfigurationsCache.getPubSecInfo(dmaapConfigKey).getDmaapInfo()
.getTopicUrl());
publisher.publish(policyMsg);
deleteRequestIdIfNecessary(policyMsg);
log.info("send policyMsg: " + GsonUtil.beanToJson(policyMsg));
} catch (NullPointerException e) {
log.error(String.format("DMaaP configurations do not exist!\n DCAE Configurations: \n %s",
DcaeConfigurationsCache.getDcaeConfigurations()), e);
} catch (Exception e) {
log.error(String.format("An error occurred when publishing a message to Policy: %s",
e.getMessage()), e);
}
}
public PolicyMsg getPolicyMsg(VesAlarm rootAlarm, VesAlarm childAlarm, String packgeName) {
return Optional.ofNullable(getVmEntity(rootAlarm.getSourceId(), rootAlarm.getSourceName()))
.map(vmEntity -> getEnrichedPolicyMsg(vmEntity, rootAlarm, childAlarm, packgeName))
.orElse(getDefaultPolicyMsg(rootAlarm, packgeName));
}
private PolicyMsg getEnrichedPolicyMsg(VmEntity vmEntity, VesAlarm rootAlarm, VesAlarm childAlarm,
String packageName) {
PolicyMsg policyMsg = new PolicyMsg();
policyMsg.setRequestID(getUniqueRequestId(rootAlarm));
if (rootAlarm.getAlarmIsCleared() == PolicyMassgeConstant.POLICY_MESSAGE_ONSET) {
enrichVnfInfo(vmEntity, childAlarm, policyMsg);
policyMsg.setClosedLoopEventStatus(EVENT_STATUS.ONSET);
policyMsg.getAai().put("vserver.in-maint", vmEntity.getInMaint());
policyMsg.getAai().put("vserver.is-closed-loop-disabled",
vmEntity.getClosedLoopDisable());
policyMsg.getAai().put("vserver.prov-status", vmEntity.getProvStatus());
policyMsg.getAai().put("vserver.resource-version", vmEntity.getResourceVersion());
} else {
policyMsg.setClosedLoopAlarmEnd(rootAlarm.getLastEpochMicrosec());
policyMsg.setClosedLoopEventStatus(EVENT_STATUS.ABATED);
}
policyMsg.setClosedLoopControlName(closedLoopControlNameCache.get(packageName));
policyMsg.setClosedLoopAlarmStart(rootAlarm.getStartEpochMicrosec());
policyMsg.getAai().put("vserver.vserver-id", vmEntity.getVserverId());
policyMsg.getAai().put("vserver.vserver-name", vmEntity.getVserverName());
policyMsg.getAai().put("vserver.vserver-name2", vmEntity.getVserverName2());
policyMsg.getAai().put("vserver.vserver-selflink", vmEntity.getVserverSelflink());
policyMsg.setTarget("vserver.vserver-name");
return policyMsg;
}
private PolicyMsg getDefaultPolicyMsg(VesAlarm rootAlarm, String packageName) {
PolicyMsg policyMsg = new PolicyMsg();
policyMsg.setRequestID(getUniqueRequestId(rootAlarm));
policyMsg.setClosedLoopControlName(closedLoopControlNameCache.get(packageName));
policyMsg.setClosedLoopAlarmStart(rootAlarm.getStartEpochMicrosec());
policyMsg.setTarget("vserver.vserver-name");
policyMsg.setTargetType("VM");
policyMsg.getAai().put("vserver.vserver-name", rootAlarm.getSourceName());
if (rootAlarm.getAlarmIsCleared() == PolicyMassgeConstant.POLICY_MESSAGE_ABATED) {
policyMsg.setClosedLoopAlarmEnd(rootAlarm.getLastEpochMicrosec());
policyMsg.setClosedLoopEventStatus(EVENT_STATUS.ABATED);
}
return policyMsg;
}
private String getUniqueRequestId(VesAlarm rootAlarm) {
String alarmUniqueKey = "";
if (rootAlarm.getAlarmIsCleared() == PolicyMassgeConstant.POLICY_MESSAGE_ABATED) {
alarmUniqueKey =
rootAlarm.getSourceId() + ":" + rootAlarm.getEventName().replace("Cleared", "");
} else {
alarmUniqueKey = rootAlarm.getSourceId() + ":" + rootAlarm.getEventName();
}
if (uniqueRequestIdCache.containsKey(alarmUniqueKey)) {
return uniqueRequestIdCache.get(alarmUniqueKey);
} else {
String requestID = UUID.randomUUID().toString();
uniqueRequestIdCache.put(alarmUniqueKey, requestID);
return requestID;
}
}
private void enrichVnfInfo(VmEntity vmEntity, VesAlarm childAlarm, PolicyMsg policyMsg) {
String vnfId = "";
String vnfName = "";
if (null != childAlarm) {
vnfId = childAlarm.getSourceId();
vnfName = childAlarm.getSourceName();
} else {
Relationship relationship = vmEntity.getRelationshipList()
.getRelationship(PolicyMassgeConstant.GENERIC_VNF);
if (null != relationship) {
vnfId = relationship.getRelationshipDataValue(PolicyMassgeConstant.GENERIC_VNF_VNF_ID);
vnfName = relationship.getRelatedToPropertyValue(PolicyMassgeConstant.GENERIC_VNF_VNF_NAME);
}
}
VnfEntity vnfEntity = getVnfEntity(vnfId, vnfName);
String vserverInstatnceId = getVserverInstanceId(vnfEntity);
policyMsg.getAai().put("generic-vnf.vnf-id", vnfId);
policyMsg.getAai().put("generic-vnf.service-instance-id", vserverInstatnceId);
}
private String getVserverInstanceId(VnfEntity vnfEntity) {
String vserverInstanceId = "";
if (vnfEntity != null) {
Relationship relationship = vnfEntity.getRelationshipList()
.getRelationship(PolicyMassgeConstant.SERVICE_INSTANCE);
if (relationship == null) {
return vserverInstanceId;
}
vserverInstanceId = relationship
.getRelationshipDataValue(PolicyMassgeConstant.SERVICE_INSTANCE_ID);
}
return vserverInstanceId;
}
private VnfEntity getVnfEntity(String vnfId, String vnfName) {
VnfEntity vnfEntity = null;
try {
vnfEntity = aaiQuery.getAaiVnfData(vnfId, vnfName);
} catch (CorrelationException e) {
log.error("Failed to get the VNF data.", e);
}
return vnfEntity;
}
private VmEntity getVmEntity(String sourceId, String sourceName) {
VmEntity vmEntity = null;
try {
vmEntity = aaiQuery.getAaiVmData(sourceId, sourceName);
} catch (CorrelationException e) {
log.error("Failed to get the VM data.", e);
}
return vmEntity;
}
private void deleteRequestIdIfNecessary(PolicyMsg policyMsg) {
EVENT_STATUS status = policyMsg.getClosedLoopEventStatus();
if (EVENT_STATUS.ABATED.equals(status)) {
String requestId = policyMsg.getRequestID();
for (Entry<String, String> kv : uniqueRequestIdCache.entrySet()) {
if (kv.getValue().equals(requestId)) {
uniqueRequestIdCache.remove(kv.getKey());
break;
}
}
log.info("An alarm is cleared and the corresponding requestId is deleted successfully");
}
}
}
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