Optimize enum class and change some java practice

[yuqi1129]

Description

This PR contains no fix and feature, is about java code optimization and contains the following contents:

1. Some java practice, for example , remove useless synchronized, remove duplication code and simplify code logic, see below

[HTHou]

Hi, actually we are working on refactoring the TsFile module and it's almost done. Can you please help us split the modification to TsFile in this PR and submit it to the NewTsFile branch? I think it may save a lot of works... :)
You can check the code here #2184

[jixuan1989]

any conflict with newTsfileBranch? @HTHou

[jixuan1989]

Kudos, SonarCloud Quality Gate passed!

0 Bugs
0 Vulnerabilities
0 Security Hotspots
6 Code Smells

No Coverage information
0.0% Duplication

code smell!

[HTHou]

any conflict with newTsfileBranch? @HTHou

Almost the using byte you mentioned.

[yuqi1129]

@HTHou @qiaojialin
Thank you for your feedback, i will compare it with #2184 and change accordingly.

[HTHou]

Hi, I checked the NewTsFile branch carefully. I found the if you change the short to byte in this PR, you may have to modify a lot of code in TsFile module.

There are two ways, one is moving the TsFile part of this PR to another PR commit into NewTsFile. Another is just keeping the short here, once this PR merged into master, I'll resolve the conflicts in NewTsFile.

I think either way is OK. Which one would you like?

[yuqi1129]

@HTHou Hi, I think the former is better, it will save us a lot of time and relatively simple.
To make sure, the TsFile part of this PR just means thel enum class changed in this PR ? as other change in this PR is also about in the TsFile project.

[HTHou]

@HTHou Hi, I think the former is better, it will save us a lot of time and relatively simple.
To make sure, the TsFile part of this PR just means thel enum class changed in this PR ? as other change in this PR is also about in the TsFile project.

What I mean is anything about TsFile module. The change of memtable is another optimization I think :)

[yuqi1129]

What I mean is anything about TsFile module. The change of memtable is another optimization I think :)
OK

[yuqi1129]

@HTHou , Changes about TsFile module have been in #2455 ,please take time review it if you are free, thanks

[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!

0 Bugs
0 Vulnerabilities
0 Security Hotspots
6 Code Smells

No Coverage information
0.0% Duplication