Make RawLocalFileSystem more friendly to sub-classing
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Key: HADOOP-7099
URL: https://issues.apache.org/jira/browse/HADOOP-7099
Project: Hadoop Common
Issue Type: Improvement
Components: fs
Affects Versions: 0.23.0
Reporter: Noah Watkins
Fix For: 0.23.0
This patch does 2 things that makes sub-classing RawLocalFileSystem easier.
First, it adds a constructor that allows a sub-class to avoid calling
getInitialWorkingDirectory(). This is important because if a sub-class has an
initially null uri (prior to initialize() being called), then
getInitialWorkingDirectory() will cause a NullPointerException when it tries to
work with the FS's uri.
The second thing this patch does is change loadPermissions to not pass the URI
object to the File(URI) constructor, but rather pass the string representation
of the path. This is important because URI's that are not using the "file"
scheme will cause the File(URI) constructor to throw an exception.
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