public <T> T execute(PrivilegedExceptionAction<T> action) throws IOException, InterruptedException {
    return this.execute(action, false);
  }
Executes action on HDFS using doAs

@param action strategy object
@param <T>    result type
@return result of operation
@throws IOException
@throws InterruptedException
contrib/views/utils/src/main/java/org/apache/ambari/view/utils/hdfs/HdfsApi.java