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https://issues.apache.org/jira/browse/HADOOP-16673?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Steve Loughran resolved HADOOP-16673.
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Resolution: Won't Fix
> Add filter parameter to FileSystem>>listFiles
> ---------------------------------------------
>
> Key: HADOOP-16673
> URL: https://issues.apache.org/jira/browse/HADOOP-16673
> Project: Hadoop Common
> Issue Type: Improvement
> Components: fs
> Reporter: Attila Magyar
> Priority: Major
>
> Currently getting recursively a filtered list of files in a directory is
> clumsy because filtering should happen afterwards on the result list.
> Imagine we want to list all non hidden files recursively.
> The non hidden files filter is defined as:
> {code:java}
> !name.startsWith("_") && !name.startsWith(".") {code}
>
> Then we can do:
>
> {code:java}
> RemoteIterator<LocatedFileStatus> remoteIterator = fs.listFiles(path,
> /*recursive*/true);
> while (remoteIterator.hasNext()) {
> LocatedFileStatus each = remoteIterator.next();
> if (filter applies to all of the path elements in each) {
> result.add(each);
> }
> }
>
> {code}
>
> For example each of these paths should be skipped:
> * /.a/b/c
> * /a/.b/c
> * /a/b/.c/
> It would be lot better to have a filter parameter on listFiles. This is
> needed to solve HIVE-22411 effectively.
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