[HADOOP-13529] Do some code refactoring

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: HADOOP-12756
• Fix Version/s: HADOOP-12756
• Component/s: fs, fs/oss
• Labels: reviewed
• Target Version/s: HADOOP-12756
• Assignee: Genmao Yu
• Reporter: Genmao Yu
• Created: 22/Aug/16 01:05
• Updated: 06/Nov/17 07:53
• Resolved: 26/Aug/16 04:40

Description

1. argument and variant naming
2. abstract utility class
3. add some comments
4. adjust some configuration
5. fix TODO
6. remove unnecessary commets
7. some bug fix

bug in copyDir

8. add some unit test