use of com.emc.storageos.recoverpoint.impl.RecoverPointClient in project coprhd-controller by CoprHD.
the class RPHelper method validateCGForDelete.
/**
* Validate the CG before performing destructive operations.
* If additional volumes appear in the RP CG on the hardware, this method returns false
* Clerical errors (such as missing DB entries) result in an Exception
*
* @param dbClient
* dbclient
* @param system
* protection system
* @param cgId
* BlockConsistencyGroup ID
* @param volumes
* list of volumes
* @return true if CG is what we expect on the hardware, false otherwise
*/
public static boolean validateCGForDelete(DbClient dbClient, ProtectionSystem system, URI cgId, Set<URI> volumes) {
_log.info("validateCGForDelete {} - start", system.getId());
// Retrieve all of the RP CGs, their RSets, and their volumes
RecoverPointClient rp = RPHelper.getRecoverPointClient(system);
Set<GetCGsResponse> cgList = rp.getAllCGs();
if (cgList == null || cgList.isEmpty()) {
String errMsg = "Could not retrieve CGs from the RPA to perform validation.";
throw DeviceControllerExceptions.recoverpoint.unableToPerformValidation(errMsg);
}
// Grab all of the source volumes from the CG according to ViPR
List<Volume> srcVolumes = RPHelper.getCgVolumes(dbClient, cgId, PersonalityTypes.SOURCE.toString());
if (srcVolumes == null || srcVolumes.isEmpty()) {
String errMsg = "Could not retrieve volumes from the database for CG to perform validation";
throw DeviceControllerExceptions.recoverpoint.unableToPerformValidation(errMsg);
}
// Get the protection set ID from the first source volume. All volumes will have the same pset ID.
URI psetId = srcVolumes.get(0).getProtectionSet().getURI();
if (NullColumnValueGetter.isNullURI(psetId)) {
String errMsg = "Could not retrieve protection set ID from the database for CG to perform validation";
throw DeviceControllerExceptions.recoverpoint.unableToPerformValidation(errMsg);
}
// Get the protection set, which is required to get the CG ID on the RPA
ProtectionSet pset = dbClient.queryObject(ProtectionSet.class, psetId);
if (pset == null) {
String errMsg = "Could not retrieve protection set from the database for CG to perform validation";
throw DeviceControllerExceptions.recoverpoint.unableToPerformValidation(errMsg);
}
// Pre-populate the wwn fields for comparisons later.
List<String> srcVolumeWwns = new ArrayList<>();
for (Volume srcVolume : srcVolumes) {
srcVolumeWwns.add(srcVolume.getWWN());
}
// This loop finds the CG on the hardware from the list of all CGs. Ignores all CGs that don't match our ID.
for (GetCGsResponse cgResponse : cgList) {
// Compare the stored CG ID (unique per RP System, doesn't change even if CG name changes)
if (Long.parseLong(pset.getProtectionId()) != cgResponse.getCgId()) {
continue;
}
// Make sure we have rsets before we continue. If the CG has no RSets on the hardware, throw
if (cgResponse.getRsets() == null || cgResponse.getRsets().isEmpty()) {
String errMsg = "Could not retrieve replication sets from the hardware to perform validation";
throw DeviceControllerExceptions.recoverpoint.unableToPerformValidation(errMsg);
}
// Find one of our volumes
for (GetRSetResponse rsetResponse : cgResponse.getRsets()) {
// Make sure we have volumes in the RSet before we continue
if (rsetResponse == null || rsetResponse.getVolumes() == null || rsetResponse.getVolumes().isEmpty()) {
String errMsg = "Could not retrieve the volumes in the replication set from the hardware to perform validation";
throw DeviceControllerExceptions.recoverpoint.unableToPerformValidation(errMsg);
}
// list of WWNs is the list of source volumes we know about.
for (GetVolumeResponse volumeResponse : rsetResponse.getVolumes()) {
// This hardware volume should be represented in the list of srcVolumes
if (!srcVolumeWwns.contains(volumeResponse.getWwn())) {
_log.warn("Found at least one volume that isn't in our list of source volumes {}, therefore we can not delete the entire CG.", volumeResponse.getWwn());
return false;
}
}
}
}
_log.info("validateCGForDelete {} - end", system.getId());
return true;
}
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