@Override
public SnapshotInfo backupSnapshot(SnapshotInfo snapshot) {
SnapshotObject snapObj = (SnapshotObject) snapshot;
AsyncCallFuture<SnapshotResult> future = new AsyncCallFuture<SnapshotResult>();
SnapshotResult result = new SnapshotResult(snapshot, null);
try {
snapObj.processEvent(Snapshot.Event.BackupToSecondary);
DataStore imageStore = findSnapshotImageStore(snapshot);
if (imageStore == null) {
throw new CloudRuntimeException("can not find an image stores");
}
SnapshotInfo snapshotOnImageStore = (SnapshotInfo) imageStore.create(snapshot);
snapshotOnImageStore.processEvent(Event.CreateOnlyRequested);
CopySnapshotContext<CommandResult> context = new CopySnapshotContext<CommandResult>(null, snapshot,
snapshotOnImageStore, future);
AsyncCallbackDispatcher<SnapshotServiceImpl, CopyCommandResult> caller = AsyncCallbackDispatcher
.create(this);
caller.setCallback(caller.getTarget().copySnapshotAsyncCallback(null, null)).setContext(context);
motionSrv.copyAsync(snapshot, snapshotOnImageStore, caller);
} catch (Exception e) {
s_logger.debug("Failed to copy snapshot", e);
result.setResult("Failed to copy snapshot:" + e.toString());
try {
snapObj.processEvent(Snapshot.Event.OperationFailed);
} catch (NoTransitionException e1) {
s_logger.debug("Failed to change state: " + e1.toString());
}
future.complete(result);
}
try {
SnapshotResult res = future.get();
if (res.isFailed()) {
throw new CloudRuntimeException(res.getResult());
}
SnapshotInfo destSnapshot = res.getSnashot();
return destSnapshot;
} catch (InterruptedException e) {
s_logger.debug("failed copy snapshot", e);
throw new CloudRuntimeException("Failed to copy snapshot", e);
} catch (ExecutionException e) {