import org.apache.hadoop.fs.viewfs.ViewFileSystem; //导入依赖的package包/类
@Override
public boolean renameForce(String changetoName) {
  FileSystem fs;
  try {
    fs = fileStatus.getPath().getFileSystem(FileFactory.getConfiguration());
    if (fs instanceof ViewFileSystem) {
      fs.delete(new Path(changetoName), true);
      fs.rename(fileStatus.getPath(), new Path(changetoName));
      return true;
    } else {
      return false;
    }
  } catch (IOException e) {
    LOGGER.error("Exception occured" + e.getMessage());
    return false;
  }
}
 

import org.apache.hadoop.fs.viewfs.ViewFileSystem; //导入依赖的package包/类
@Test
public void testGetMountPoints() {
  ViewFileSystem viewfs = (ViewFileSystem) fsView;
  MountPoint[] mountPoints = viewfs.getMountPoints();
  Assert.assertEquals(getExpectedMountPoints(), mountPoints.length); 
}