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https://issues.apache.org/jira/browse/IO-470?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14573831#comment-14573831
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Sebb commented on IO-470:
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Note that WatcherService [1] may use polling if the underlying native code does
not support file event notification.
Furthermore "... it is not required that changes to files carried out on remote
systems be detected."
Changing to WatcherService may break code that is tailing a remote file, so I
think its use should be optional.
[1] http://docs.oracle.com/javase/7/docs/api/java/nio/file/WatchService.html
> Using WatchService in Tailer instead of polling
> -----------------------------------------------
>
> Key: IO-470
> URL: https://issues.apache.org/jira/browse/IO-470
> Project: Commons IO
> Issue Type: Improvement
> Components: Utilities
> Affects Versions: 2.4
> Reporter: Jeremiah Orr
> Labels: Java7, Tailer
> Fix For: 2.6
>
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> Tailer would benefit from using Java 7's WatchService to detect file changes
> instead of polling at a set interval. Tailer could respond quicker to
> changes, and it would save the system from constant polling. This of course
> would mean that commons-io would require Java 7.
> I don't know what the future release plans are for commons-io; if there's an
> upcoming version that will require Java 7, I'll happily make this change
> myself.
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