[RANGER-4004] During the service deletion also, we can clear the in-memory cache for that service which got deleted on the ranger side

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0, 2.3.0
• Fix Version/s: 3.0.0, 2.4.0
• Component/s: Ranger
• Assignee: Ramachandran
• Reporter: Ramachandran
• Created: 08/Dec/22 07:24
• Updated: 10/Dec/22 07:07
• Resolved: 10/Dec/22 07:07

Description

During the servie deletion ,we need to clear the RangerServicePoliciesCache for the given serviceName

 
@Override
public void deleteService(Long id) throws Exception {
if(LOG.isDebugEnabled()) {
LOG.debug("==> ServiceDBStore.deleteService(" + id + ")");
}

RangerService service = getService(id);

if(service == null) {
throw new Exception("no service exists with ID=" + id);
}

// Manage zone
disassociateZonesForService(service); //RANGER-3016

List<Long> policyIds = daoMgr.getXXPolicy().findPolicyIdsByServiceId(service.getId());
if (CollectionUtils.isNotEmpty(policyIds)) {
long totalDeletedPolicies = 0;
for (Long policyID : policyIds) {
RangerPolicy rangerPolicy = getPolicy(policyID);
deletePolicy(rangerPolicy, service);
totalDeletedPolicies = totalDeletedPolicies + 1;
// its a bulk policy delete call flush and clear
if (totalDeletedPolicies % RangerBizUtil.policyBatchSize == 0) {
bizUtil.bulkModeOnlyFlushAndClear();
}
}
bizUtil.bulkModeOnlyFlushAndClear();
}

XXServiceConfigMapDao configDao = daoMgr.getXXServiceConfigMap();
List<XXServiceConfigMap> configs = configDao.findByServiceId(service.getId());
for (XXServiceConfigMap configMap : configs) {
configDao.remove(configMap);
}

// Purge x_rms data
daoMgr.getXXRMSServiceResource().purge(service.getId());

Long version = service.getVersion();
if(version == null) {
version = Long.valueOf(1);
LOG.info("Found Version Value: `null`, so setting value of version to 1, While updating object, version should not be null.");
} else {
version = Long.valueOf(version.longValue() + 1);
}
service.setVersion(version);

svcService.delete(service);

dataHistService.createObjectDataHistory(service, RangerDataHistService.ACTION_DELETE);

List<XXTrxLog> trxLogList = svcService.getTransactionLog(service, RangerServiceService.OPERATION_DELETE_CONTEXT);
bizUtil.createTrxLog(trxLogList);
//During the servie deletion ,we need to clear the RangerServicePoliciesCache for the given serviceName.
resetPolicyCache(service.getName());
}