@Override
  public FSDataOutputStream create(Path f, FsPermission permission,
      boolean overwrite, int bufferSize, short replication, long blockSize,
      Progressable progress) throws IOException {
    return super.create(swizzleParamPath(f), permission,
        overwrite, bufferSize, replication, blockSize, progress);
  }
Create a proxy file system for fs.

@param fs FileSystem to create proxy for
@param myUri URI to use as proxy. Only the scheme and authority from
             this are used right now
shims/common/src/main/java/org/apache/hadoop/fs/ProxyFileSystem.java