private Data getBackupOperationData(BackupAwareOperation backupAwareOp) {
Operation backupOp = backupAwareOp.getBackupOperation();
if (backupOp == null) {
throw new IllegalArgumentException("Backup operation should not be null! " + backupAwareOp);
}
Operation op = (Operation) backupAwareOp;
// set service name of backup operation.
// if getServiceName() method is overridden to return the same name
// then this will have no effect.
backupOp.setServiceName(op.getServiceName());
return nodeEngine.getSerializationService().toData(backupOp);
}
