[
https://issues.apache.org/jira/browse/HADOOP-13172?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15289089#comment-15289089
]
Andras Bokor commented on HADOOP-13172:
---------------------------------------
In some cases like {{FileSystem#getScheme}} we throw
{{UnsupportedOperationException}} which indicates that the requested operation
is not supported.
What is the benefit to use a custom exception instead of a built in exception
type?
> And an UnsupportedFeatureException for Filesystems to throw on unsupported
> operations
> -------------------------------------------------------------------------------------
>
> Key: HADOOP-13172
> URL: https://issues.apache.org/jira/browse/HADOOP-13172
> Project: Hadoop Common
> Issue Type: Improvement
> Components: fs
> Affects Versions: 2.8.0
> Reporter: Steve Loughran
> Priority: Minor
>
> Filesystems which don't support things like append() tend to throw a simple
> IOE, which makes it hard to distinguish "append didn't work for some IO
> problem" and "append isn't implemented".
> If we add a new exception, {{UnsupportedFeatureException}}, make it the
> strict failure mode of such operations if not supported and patch all our
> filesystems to raise it, then at least code has a straightforward check. Same
> for any other unimplemented feature
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
