Remove StringUtils.isEmpty(s) and improve comments

[caicancai]

Motivation:

StringUtils.isBlank(s) can detect null, empty, and space strings, without retaining StringUtils.isEmpty(s)

Result:

Fixes #.

If there is no issue then describe the changes introduced by this PR.

Summary by CodeRabbit

• Documentation

  • Updated comments for State enum to clarify the roles of nodes in different states.

• Refactor

  • Simplified string validation in PeerId class by removing redundant StringUtils.isEmpty check.

[coderabbitai]

Walkthrough

The recent updates focus on improving code readability and functionality within the JRaft project. Notable changes include enhanced descriptive comments for each state in the State enum and refining the parse method in the PeerId class by removing an unnecessary check, streamlining string validation.

Changes

File	Change Summary
jraft-core/src/main/java/com/alipay/sofa/jraft/core/State.java	Added detailed comments for each state in the State enum to enhance readability. Introduced a new state STATE_END with an appropriate comment.
jraft-core/src/main/java/com/alipay/sofa/jraft/entity/PeerId.java	Updated the parse method to remove the StringUtils.isEmpty check, now solely uses StringUtils.isBlank for string validation.

Poem

A rabbit with code so fine,
Enhanced the states with a clearer sign,
PeerId now checks with ease,
Blank fields but not empties please,
In JRaft’s heart, these changes entwine.
🐇✨🍃

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[coderabbitai]

Actionable comments posted: 0

Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

Commits

Files that changed from the base of the PR and between aefb594 and 4eaf928.

Files selected for processing (2)

• jraft-core/src/main/java/com/alipay/sofa/jraft/core/State.java (1 hunks)
• jraft-core/src/main/java/com/alipay/sofa/jraft/entity/PeerId.java (1 hunks)

Files skipped from review due to trivial changes (1)

• jraft-core/src/main/java/com/alipay/sofa/jraft/core/State.java

Additional comments not posted (1)

jraft-core/src/main/java/com/alipay/sofa/jraft/entity/PeerId.java (1)

195-195: Simplified string validation in parse method.

The change from using both StringUtils.isEmpty(s) and StringUtils.isBlank(s) to only StringUtils.isBlank(s) is a sensible simplification. This change improves the readability and efficiency of the code since StringUtils.isBlank(s) alone covers all cases that the combined checks did.

[caicancai]

I should have found this issue in #1113, I'm sorry for that

[coderabbitai]

Actionable comments posted: 0

Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

Commits

Files that changed from the base of the PR and between 4eaf928 and e630054.

Files selected for processing (2)

• jraft-core/src/main/java/com/alipay/sofa/jraft/core/State.java (1 hunks)
• jraft-core/src/main/java/com/alipay/sofa/jraft/entity/PeerId.java (1 hunks)

Files skipped from review as they are similar to previous changes (2)

• jraft-core/src/main/java/com/alipay/sofa/jraft/core/State.java
• jraft-core/src/main/java/com/alipay/sofa/jraft/entity/PeerId.java

[killme2008]

I don't encourage barely code refactoring since it can bring extra overhead to cherry-pick.

Code can be written in multiple styles. As long as we don't have a (checkstyle) rule to assert the usage, it brings little value to do such changes.

@caicancai I suggest you spend more time investigating the reported bugs or potential enhancement. Applying your code style preference alongside those efforts.

[caicancai]

I don't encourage barely code refactoring since it can bring extra overhead to cherry-pick.

Code can be written in multiple styles. As long as we don't have a (checkstyle) rule to assert the usage, it brings little value to do such changes.

@caicancai I suggest you spend more time investigating the reported bugs or potential enhancement. Applying your code style preference alongside those efforts.

Thank you for your advice. I will continue to study this project and spend more time on interesting features later.