cacheStore = (NfsTO)destData.getDataStore();
secondaryStorageUrl = cacheStore.getUrl();
destPath = destData.getPath();
}
SnapshotObjectTO snapshotTO = (SnapshotObjectTO)srcData;
SnapshotObjectTO snapshotOnImage = (SnapshotObjectTO)destData;
String snapshotUuid = snapshotTO.getPath();
String volumeUuid = snapshotTO.getVolume().getPath();
String prevBackupUuid = snapshotOnImage.getParentSnapshotPath();
String prevSnapshotUuid = snapshotTO.getParentSnapshotPath();
// By default assume failure
String details = null;
String snapshotBackupUuid = null;
Long physicalSize = null;
Map<String, String> options = cmd.getOptions();
boolean fullbackup = Boolean.parseBoolean(options.get("fullSnapshot"));
boolean result = false;
try {
SR primaryStorageSR = hypervisorResource.getSRByNameLabelandHost(conn, primaryStorageNameLabel);
if (primaryStorageSR == null) {
throw new InternalErrorException("Could not backup snapshot because the primary Storage SR could not be created from the name label: " + primaryStorageNameLabel);
}
String psUuid = primaryStorageSR.getUuid(conn);
Boolean isISCSI = IsISCSI(primaryStorageSR.getType(conn));
VDI snapshotVdi = getVDIbyUuid(conn, snapshotUuid);
String snapshotPaUuid = null;
if ( prevSnapshotUuid != null && !fullbackup) {
try {
snapshotPaUuid = getVhdParent(conn, psUuid, snapshotUuid, isISCSI);
if( snapshotPaUuid != null ) {
String snashotPaPaPaUuid = getVhdParent(conn, psUuid, snapshotPaUuid, isISCSI);
String prevSnashotPaUuid = getVhdParent(conn, psUuid, prevSnapshotUuid, isISCSI);
if (snashotPaPaPaUuid != null && prevSnashotPaUuid!= null && prevSnashotPaUuid.equals(snashotPaPaPaUuid)) {
fullbackup = false;
} else {
fullbackup = true;
}
}
} catch (Exception e) {
s_logger.debug("Failed to get parent snapshots, take full snapshot", e);
fullbackup = true;
}
}
URI uri = new URI(secondaryStorageUrl);
String secondaryStorageMountPath = uri.getHost() + ":" + uri.getPath();
DataStoreTO destStore = destData.getDataStore();
String folder = destPath;
String finalPath = null;
String localMountPoint = BaseMountPointOnHost + File.separator + UUID.nameUUIDFromBytes(secondaryStorageUrl.getBytes()).toString();
if (fullbackup) {
// the first snapshot is always a full snapshot
if( !hypervisorResource.createSecondaryStorageFolder(conn, secondaryStorageMountPath, folder)) {
details = " Filed to create folder " + folder + " in secondary storage";
s_logger.warn(details);
return new CopyCmdAnswer(details);
}
String snapshotMountpoint = secondaryStorageUrl + "/" + folder;
SR snapshotSr = null;
try {
snapshotSr = hypervisorResource.createNfsSRbyURI(conn, new URI(snapshotMountpoint), false);
VDI backedVdi = hypervisorResource.cloudVDIcopy(conn, snapshotVdi, snapshotSr, wait);
snapshotBackupUuid = backedVdi.getUuid(conn);
String primarySRuuid = snapshotSr.getUuid(conn);
physicalSize = getSnapshotSize(conn, primarySRuuid, snapshotBackupUuid, isISCSI, wait);
if( destStore instanceof SwiftTO) {
try {
String container = "S-" + snapshotTO.getVolume().getVolumeId().toString();
String destSnapshotName = swiftBackupSnapshot(conn, (SwiftTO)destStore, snapshotSr.getUuid(conn), snapshotBackupUuid, container, false, wait);
String swiftPath = container + File.separator + destSnapshotName;
finalPath = swiftPath;
} finally {
try {
deleteSnapshotBackup(conn, localMountPoint, folder, secondaryStorageMountPath, snapshotBackupUuid);
} catch (Exception e) {
s_logger.debug("Failed to delete snapshot on cache storages" ,e);
}
}
} else if (destStore instanceof S3TO) {
try {
finalPath = backupSnapshotToS3(conn, (S3TO) destStore, snapshotSr.getUuid(conn), folder, snapshotBackupUuid, isISCSI, wait);
if (finalPath == null) {
throw new CloudRuntimeException("S3 upload of snapshots " + snapshotBackupUuid + " failed");
}
} finally {
try {
deleteSnapshotBackup(conn, localMountPoint, folder, secondaryStorageMountPath, snapshotBackupUuid);
} catch (Exception e) {
s_logger.debug("Failed to delete snapshot on cache storages" ,e);
}
}
// finalPath = folder + File.separator + snapshotBackupUuid;
} else {
finalPath = folder + File.separator + snapshotBackupUuid;
}
} finally {
if( snapshotSr != null) {
hypervisorResource.removeSR(conn, snapshotSr);
}
}
} else {
String primaryStorageSRUuid = primaryStorageSR.getUuid(conn);
if( destStore instanceof SwiftTO ) {
String container = "S-" + snapshotTO.getVolume().getVolumeId().toString();
snapshotBackupUuid = swiftBackupSnapshot(conn, (SwiftTO)destStore, primaryStorageSRUuid, snapshotPaUuid, "S-" + snapshotTO.getVolume().getVolumeId().toString(), isISCSI, wait);
finalPath = container + File.separator + snapshotBackupUuid;
} else if (destStore instanceof S3TO ) {
finalPath = backupSnapshotToS3(conn, (S3TO) destStore, primaryStorageSRUuid, folder, snapshotPaUuid, isISCSI, wait);
if (finalPath == null) {
throw new CloudRuntimeException("S3 upload of snapshots " + snapshotPaUuid + " failed");
}
} else {
String results = backupSnapshot(conn, primaryStorageSRUuid, localMountPoint, folder,
secondaryStorageMountPath, snapshotUuid, prevBackupUuid, isISCSI, wait);
String[] tmp = results.split("#");
snapshotBackupUuid = tmp[1];
physicalSize = Long.parseLong(tmp[2]);
finalPath = folder + File.separator + snapshotBackupUuid;
}
}
// delete primary snapshots with only the last one left
destroySnapshotOnPrimaryStorageExceptThis(conn, volumeUuid, snapshotUuid);
SnapshotObjectTO newSnapshot = new SnapshotObjectTO();
newSnapshot.setPath(finalPath);
newSnapshot.setPhysicalSize(physicalSize);
if (fullbackup) {
newSnapshot.setParentSnapshotPath(null);
} else {
newSnapshot.setParentSnapshotPath(prevBackupUuid);
}
result = true;
return new CopyCmdAnswer(newSnapshot);
} catch (XenAPIException e) {
details = "BackupSnapshot Failed due to " + e.toString();