[HBASE-24249] Move code in FSHDFSUtils to FSUtils and mark related classes as final

• Type: Task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.0.0-alpha-1, 2.3.0
• Component/s: Filesystem Integration
• Hadoop Flags: Reviewed
• Assignee: Duo Zhang
• Reporter: Duo Zhang
• Created: 24/Apr/20 03:45
• Updated: 30/Apr/20 04:03
• Resolved: 29/Apr/20 03:42

Description

It is a bit strange that a 'util' class can be instantiated.

I think the motivation is to provide multiple recoverFileLease implementation based on different filesystem implementation. But until now, there is still only one implementation for HDFS in HBase, and all the related classes are marked as IA.Private so we do not expect user to extend the class.

Let's just move the code in FSHDFSUtils to FSUtils directly and make FSUtils a true 'util' class.

Issue Links

• links to: #1586