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https://issues.apache.org/jira/browse/HADOOP-2634?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12560101#action_12560101
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Doug Cutting commented on HADOOP-2634:
--------------------------------------
Hairong has addressed these inconsistencies in HADOOP-2566.
Yes, the implementation of exists() in terms of getFileStatus() would be
simple. However it is considered bad style to use exceptions for normal
control flow, and exists() returning false is a normal condition. We might
just have to live with that...
> Deprecate exists() and isDir() to simplify ClientProtocol.
> ----------------------------------------------------------
>
> Key: HADOOP-2634
> URL: https://issues.apache.org/jira/browse/HADOOP-2634
> Project: Hadoop
> Issue Type: Improvement
> Components: dfs
> Affects Versions: 0.15.0
> Reporter: Konstantin Shvachko
>
> ClientProtocol can be simplified by removing two methods
> {code}
> public boolean exists(String src) throws IOException;
> public boolean isDir(String src) throws IOException;
> {code}
> This is a redundant api, which can be implemented in DFSClient as convenience
> methods using
> {code}
> public DFSFileInfo getFileInfo(String src) throws IOException;
> {code}
> Note that we already deprecated several Filesystem method and advised to use
> getFileStatus() instead.
> Should we deprecate them in 0.16?
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