[jira] [Assigned] (HDFS-13598) Reduce unnecessary byte-to-string transform operation in INodesInPath#toString

["Gabor Bota (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HDFS-13598?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gabor Bota reassigned HDFS-13598:
---------------------------------

    Assignee: Gabor Bota

> Reduce unnecessary byte-to-string transform operation in INodesInPath#toString
> ------------------------------------------------------------------------------
>
>                 Key: HDFS-13598
>                 URL: https://issues.apache.org/jira/browse/HDFS-13598
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>    Affects Versions: 3.1.0
>            Reporter: Yiqun Lin
>            Assignee: Gabor Bota
>            Priority: Minor
>         Attachments: HDFS-13598.001.patch
>
>
> Every time we invoke {{INodesInPath#toString()}}, we will trigger one time byte-to-string transform operation.
> {code:java}
> private String toString(boolean vaildateObject) {
>     if (vaildateObject) {
>       validate();
>     }
>     final StringBuilder b = new StringBuilder(getClass().getSimpleName())
>         .append(": path = ").append(DFSUtil.byteArray2PathString(path))
>         .append("\n  inodes = ");
>         ...
> }
> {code}
> But actually we only need to do at most one time. In {{INodesInPath}}, it has defined one String type variable named {{pathname}} for storing the path string value. Here we can use {{getPath()}} to replace {{DFSUtil.byteArray2PathString(path)}}.



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