[HADOOP-15957] WASB: Add asterisk wildcard support for PageBlobDirSet

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.2.0
• Fix Version/s: 3.2.0
• Component/s: fs/azure
• Assignee: Da Zhou
• Reporter: Da Zhou
• Created: 29/Nov/18 01:04
• Updated: 30/Nov/18 11:03
• Resolved: 30/Nov/18 10:14

Description

In WASB, property "fs.azure.page.blob.dir" only support literal directory name.
We need to add support for wildcard '*' to represent for any directory name.
For example, the following pattern should be supported:

/dir1/dir2 
/dir1/*/dir3
/dir1/*/*/dir4
/dir1/*/*/file