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chore: rearrange code before refactoring #1031

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merged 1 commit into from
Oct 7, 2024
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@ttypic ttypic commented Sep 24, 2024

It's hard to analyze the code when it is not arranged properly based on Java guidelines

Summary by CodeRabbit

  • New Features

    • Enhanced error handling for proxy configuration in HTTP connections.
    • Improved clarity in WebSocket connection handling and close operations.
  • Bug Fixes

    • Refined error handling for server responses, including authentication headers.
  • Refactor

    • Code organization and readability improvements in both HTTP and WebSocket handling.
    • Method renaming and restructuring for better clarity and functionality.
    • Updated Gradle and wrapper scripts for improved build process efficiency.

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coderabbitai bot commented Sep 24, 2024

Walkthrough

The changes involve modifications to the HttpCore and WebSocketTransport classes within the Ably library. Enhancements include improved error handling, code readability, and structural clarity. Key method signatures have been updated, and new methods introduced to better manage preferred hosts. The organization of import statements and consistent formatting practices have been applied to the WebSocketTransport class, focusing on clarity without altering functionality. Additionally, updates have been made to the Gradle build configuration and wrapper scripts.

Changes

File Path Change Summary
lib/src/main/java/io/ably/lib/http/HttpCore.java - Improved error handling in proxy configuration and response handling.
- Renamed setPreferredHost to getPreferredHost and added a new setPreferredHost method.
- Refined static initialization and control flow formatting.
lib/src/main/java/io/ably/lib/transport/WebSocketTransport.java - Reorganized imports and added constants for close codes.
- Reformatted methods for consistency and clarity in error handling.
- Updated inner class WsClient for better activity tracking.
android/build.gradle - Updated Android Gradle plugin version from 4.1.0 to 4.2.2.
gradle/wrapper/gradle-wrapper.properties - Updated Gradle version from 6.6.1 to 6.7.1.
gradlew - Added copyright notice and licensing information.
- Updated JVM options and simplified command-line argument handling.
gradlew.bat - Added copyright notice and resolved path simplifications.
- Updated JVM options and streamlined command execution logic.

Sequence Diagram(s)

sequenceDiagram
    participant Client
    participant WebSocketTransport
    participant WsClient

    Client->>WebSocketTransport: connect()
    WebSocketTransport->>WsClient: initialize()
    WsClient->>WebSocketTransport: onActivityTimerExpiry()
    WebSocketTransport->>Client: connection established
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🐇 "In the code where rabbits hop,
Changes made, they’ll never stop.
With clearer paths and errors tamed,
In the world of bytes, we’re unashamed!
So let’s celebrate, with joy we sing,
For every fix, a happy spring!" 🐇


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@ttypic ttypic requested a review from sacOO7 September 24, 2024 12:22
@github-actions github-actions bot temporarily deployed to staging/pull/1031/features September 24, 2024 12:23 Inactive
@github-actions github-actions bot temporarily deployed to staging/pull/1031/javadoc September 24, 2024 12:23 Inactive
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Actionable comments posted: 4

Outside diff range and nitpick comments (1)
lib/src/main/java/io/ably/lib/http/HttpCore.java (1)

Line range hint 337-352: Improve exception handling and logging in error parsing

In the error handling section, exceptions are caught and messages are printed to System.err, which is not recommended. Using the logging framework provides better control over log output.

Also, consider logging exceptions to help with debugging.

Apply this diff to enhance logging:

                 } catch (IOException e) {
-                    System.err.println("Unable to parse msgpack error response");
+                    Log.e(TAG, "Unable to parse msgpack error response", e);
                 }
             } else {
                 /* assume json */
                 String bodyText = new String(response.body);
                 try {
                     ErrorResponse errorResponse = ErrorResponse.fromJSON(bodyText);
                     if (errorResponse != null) {
                         error = errorResponse.error;
                     }
                 } catch (JsonParseException jse) {
-                    System.err.println("Error message in unexpected format: " + bodyText);
+                    Log.e(TAG, "Error message in unexpected format: " + bodyText, jse);
                 }
             }
Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

Commits

Files that changed from the base of the PR and between ea94d2a and 161fc45.

Files selected for processing (2)
  • lib/src/main/java/io/ably/lib/http/HttpCore.java (23 hunks)
  • lib/src/main/java/io/ably/lib/transport/WebSocketTransport.java (12 hunks)
Additional context used
ast-grep
lib/src/main/java/io/ably/lib/transport/WebSocketTransport.java

[warning] 85-85: 'An insecure SSL context was detected. TLS versions 1.0, 1.1, and all
SSL versions are considered weak encryption and are deprecated. Use
SSLContext.getInstance("TLSv1.2") for the best security.'
Context: SSLContext.getInstance("TLS")
Note: [CWE-326] Inadequate Encryption Strength [REFERENCES]
- https://tools.ietf.org/html/rfc7568
- https://tools.ietf.org/id/draft-ietf-tls-oldversions-deprecate-02.html

Additional comments not posted (6)
lib/src/main/java/io/ably/lib/transport/WebSocketTransport.java (5)

Line range hint 1-43: LGTM: Import rearrangement and constant additions improve code clarity.

The rearrangement of import statements and the addition of WebSocket close code constants enhance the overall readability and maintainability of the code. These changes align well with Java best practices.


Line range hint 68-99: LGTM: Improved formatting and error handling in the connect method.

The reformatting of the connect method enhances readability, and the adjusted error handling provides a more consistent style while maintaining the original logic.

Tools
ast-grep

[warning] 85-85: 'An insecure SSL context was detected. TLS versions 1.0, 1.1, and all
SSL versions are considered weak encryption and are deprecated. Use
SSLContext.getInstance("TLSv1.2") for the best security.'
Context: SSLContext.getInstance("TLS")
Note: [CWE-326] Inadequate Encryption Strength [REFERENCES]
- https://tools.ietf.org/html/rfc7568
- https://tools.ietf.org/id/draft-ietf-tls-oldversions-deprecate-02.html


Line range hint 118-145: LGTM: Enhanced readability and consistent error handling in the send method.

The reformatting of the send method improves code clarity, and the adjusted error handling provides a more consistent style while maintaining the original logic. These changes contribute to better maintainability of the code.


Line range hint 183-405: LGTM: Improved encapsulation and consistency in the WsClient inner class.

The addition of private member declarations for timer management and activity tracking enhances encapsulation. The reformatting of methods within WsClient improves consistency and readability. The update to the onActivityTimerExpiry method ensures correct handling of the activity timer reset. These changes contribute to better code organization and maintainability.


Line range hint 1-408: Overall LGTM: Code rearrangement aligns with PR objectives.

The changes in this file successfully achieve the PR's objective of rearranging code before refactoring. The improvements in code organization, readability, and consistency will greatly facilitate future refactoring efforts. Key enhancements include:

  1. Rearranged import statements
  2. Added WebSocket close code constants
  3. Improved formatting and error handling in methods like connect and send
  4. Enhanced encapsulation and consistency in the WsClient inner class

These changes provide a solid foundation for future refactoring while maintaining the existing functionality.

lib/src/main/java/io/ably/lib/http/HttpCore.java (1)

529-531: Ensure nonProxyHosts patterns are correctly matched

The method uses host.matches(nonProxyHostPattern), which interprets patterns as regular expressions. If nonProxyHosts contains wildcard patterns like *.example.com, this may not work as intended.

Verify that nonProxyHosts patterns are valid regular expressions or adjust the matching logic to handle wildcard patterns appropriately.

To verify the patterns, you can run:

@github-actions github-actions bot temporarily deployed to staging/pull/1031/features September 24, 2024 14:12 Inactive
@github-actions github-actions bot temporarily deployed to staging/pull/1031/javadoc September 24, 2024 14:12 Inactive
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Actionable comments posted: 2

Outside diff range and nitpick comments (1)
gradlew (1)

162-171: Improved readability in argument processing.

The alignment of case statements and the addition of explicit cases for up to 9 arguments enhance the readability of the script. This change makes the argument handling more verbose and potentially easier to understand.

However, consider if this level of verbosity is necessary. A more concise approach using a loop might be more maintainable, especially if the number of potential arguments might increase in the future. For example:

case $i in
    0) set -- ;;
    *) set -- "${@:1:$i}" ;;
esac

This suggestion maintains readability while being more scalable.

Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

Commits

Files that changed from the base of the PR and between 161fc45 and bd2945f.

Files ignored due to path filters (1)
  • gradle/wrapper/gradle-wrapper.jar is excluded by !**/*.jar
Files selected for processing (4)
  • android/build.gradle (1 hunks)
  • gradle/wrapper/gradle-wrapper.properties (1 hunks)
  • gradlew (6 hunks)
  • gradlew.bat (4 hunks)
Additional comments not posted (12)
gradle/wrapper/gradle-wrapper.properties (2)

1-1: LGTM: Timestamp added for better change tracking

The addition of a timestamp comment is a good practice. It helps in tracking when the Gradle wrapper configuration was last updated.


4-4: Gradle version updated and distribution type changed

The Gradle version has been updated from 6.6.1 to 6.7.1, which is a minor version bump. Additionally, the distribution type has been changed from "all" to "bin", which will reduce the download size and save disk space.

These changes look good, but please ensure that:

  1. The new Gradle version (6.7.1) is compatible with your project and its dependencies.
  2. The "bin" distribution type is sufficient for your development needs (it excludes sources and documentation).

To verify the Gradle version compatibility, please run the following command and check for any deprecation warnings or errors:

gradlew.bat (6)

1-15: Excellent addition of the copyright notice.

The inclusion of the Apache License 2.0 copyright notice at the beginning of the file is a good practice for open-source projects. It clearly communicates the terms under which the software is distributed.


32-33: Improved path resolution for APP_HOME.

The addition of these lines to resolve "." and ".." in the APP_HOME path is a good improvement. It ensures that the APP_HOME variable contains a fully qualified path, which can prevent issues with relative path resolution later in the script.


36-36: Improved JVM options configuration.

The update to DEFAULT_JVM_OPTS now includes both maximum (-Xmx64m) and initial (-Xms64m) heap size settings. This can potentially improve startup performance by pre-allocating memory, while maintaining the same maximum heap size as before.


43-43: Streamlined control flow.

The script now jumps directly to the :execute label when Java is found, simplifying the overall flow. The error handling for cases where Java is not found or JAVA_HOME is invalid remains robust. This change makes the script more straightforward and easier to follow.

Also applies to: 57-57


74-74: Simplified command-line argument handling.

The use of %* to pass all command-line arguments to the Gradle wrapper execution is a significant improvement. This change simplifies the script by removing the specific handling for Windows variants and associated logic for processing arguments. The new approach is more straightforward and easier to maintain.


Line range hint 1-90: Overall excellent improvements to the Gradle wrapper script.

The changes made to gradlew.bat significantly enhance its clarity, efficiency, and maintainability. Key improvements include:

  1. Addition of a proper copyright notice.
  2. Better path resolution for APP_HOME.
  3. Improved JVM options configuration.
  4. Streamlined control flow.
  5. Simplified command-line argument handling.

These modifications align well with the PR objectives of improving code organization and preparing for future refactoring. The script is now more robust and easier to understand, which will facilitate future maintenance and updates.

android/build.gradle (1)

8-8: Approved: Android Gradle plugin version update.

The update from version 4.1.0 to 4.2.2 of the Android Gradle plugin is a good maintenance practice. This change can bring bug fixes, performance improvements, and new features to your build process.

To ensure a smooth transition, please:

  1. Verify that this version is compatible with your current Gradle wrapper version. You may need to update the Gradle wrapper as well.
  2. Test the build process thoroughly, including clean builds, incremental builds, and any custom tasks you may have.
  3. Review the changelog for versions 4.1.1 through 4.2.2 to check for any notable changes or required updates in your build scripts or project structure.

Run the following script to check the Gradle wrapper version and view a summary of changes:

This will help you ensure compatibility and be aware of any significant changes introduced in these versions.

gradlew (3)

3-17: Excellent addition of copyright notice and license information.

The inclusion of the Apache License, Version 2.0 notice is a positive step for proper open-source licensing. This addition helps clarify the terms under which the software can be used, modified, and distributed.


47-47: Improved JVM options configuration.

The addition of the initial heap size (-Xms) alongside the maximum heap size (-Xmx) is a good practice. Setting both to 64m provides a consistent memory allocation, which can lead to more predictable performance, especially during startup.


130-130: Improved clarity in environment check condition.

The modification to use explicit comparison (= "true") for the Cygwin and MSYS environment check enhances readability and follows shell scripting best practices. This change maintains the same functionality while making the intent clearer.

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@sacOO7
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sacOO7 commented Sep 30, 2024

Refactoring looks okay to me, few more suggestions

  1. More doc comments can be added.
  2. Need to rename short variable names, those look very confusing.
  3. Replace System.out with standard logging, also add error log messages for empty exception handling blocks.

@ttypic
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ttypic commented Oct 3, 2024

@sacOO7 It's not refactoring :) it's just rearranging the code. The code order was wrong, I made it right, based on official Java specification. We have static initializers, then static fields, methods, public fields, private fields, constructor, then public methods, private methods. Everything else is out of the scope of this PR. I haven't change a single line of code

@ttypic ttypic requested a review from sacOO7 October 7, 2024 09:22
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Lgtm

@ttypic ttypic merged commit aed323d into main Oct 7, 2024
15 of 19 checks passed
@ttypic ttypic deleted the chore-rearange-code branch October 7, 2024 14:38
@coderabbitai coderabbitai bot mentioned this pull request Oct 7, 2024
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