public void removeBlob(String container, String name) {
   try {
     service.deleteFile(container, name);
   } catch (DeleteException e) {
     e.printStackTrace();
   }
 }
 public void clearContainer(String container) {
   try {
     service.delete(container, "/", true);
   } catch (DeleteException e) {
     e.printStackTrace();
   }
 }
 public void deleteDirectory(String container, String name) {
   try {
     service.deleteFolder(container, name);
   } catch (DeleteException e) {
     e.printStackTrace();
   }
 }