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https://issues.apache.org/jira/browse/HADOOP-2634?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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lohit vijayarenu updated HADOOP-2634:
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Attachment: HADOOP-2634-1.patch
Talked to Konstantine regarding this. Even though the idea of catching
exception and returning bool does not look correct, for time being that
approach was felt acceptable. The attached patch implements exists(Path) in
terms of getFileStatus(Path). This patch also deprecates ClientProtocol#exists
and Serverside exists.
> Deprecate exists() and isDir() to simplify ClientProtocol.
> ----------------------------------------------------------
>
> Key: HADOOP-2634
> URL: https://issues.apache.org/jira/browse/HADOOP-2634
> Project: Hadoop Core
> Issue Type: Improvement
> Components: dfs
> Affects Versions: 0.15.0
> Reporter: Konstantin Shvachko
> Assignee: lohit vijayarenu
> Priority: Blocker
> Fix For: 0.17.0
>
> Attachments: HADOOP-2634-1.patch
>
>
> 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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