Refactored Design and Implementation Smells #147

Kushaljp · 2024-04-01T01:35:14Z

User description

I have refactored Design Smells and Implementation Smells to improve code readability and code quality

Type

enhancement, bug_fix

Description

Introduced ProxyConfigurationManager to manage proxy configurations, enhancing code modularity and readability.
Refactored HtmlUnitDriver to use a WebClient instance directly, improving the design.
Simplified keyboard interaction logic in HtmlUnitKeyboard and HtmlUnitWebElement, removing unused code and enhancing readability.
Added constants for alert lock handling in HtmlUnitTargetLocator for better maintainability.
Enhanced modifier keys state management in KeyboardModifiersState.
Updated proxy tests to reflect the new proxy management approach.

Changes walkthrough

Relevant files

Enhancement

HtmlUnitDriver.java `Refactor WebClient and Proxy Configuration Management` src/main/java/org/openqa/selenium/htmlunit/HtmlUnitDriver.java Introduced `WebClient` and `ProxyConfigurationManager` instances to manage web client and proxy configurations. Removed the `setProxySettings` method and related proxy configuration methods. Proxy settings now managed by `ProxyConfigurationManager`.	+8/-136
HtmlUnitKeyboard.java `Simplify Keyboard Interaction and Remove Unused Code` src/main/java/org/openqa/selenium/htmlunit/HtmlUnitKeyboard.java Simplified `sendKeys` method logic for `HtmlFileInput` and general elements. Removed commented-out `addToKeyboard` method, replaced its functionality with `modifiersState_.addToKeyboard`.	+24/-33
HtmlUnitTargetLocator.java `Improve Alert Lock Handling with Constants` src/main/java/org/openqa/selenium/htmlunit/HtmlUnitTargetLocator.java Introduced constants for alert lock retry count and delay. Simplified alert lock retry logic using constants.	+5/-4
HtmlUnitWebElement.java `Clean Up WebElement Focus and Attribute Handling` src/main/java/org/openqa/selenium/htmlunit/HtmlUnitWebElement.java Added `shouldSwitchFocus` method to clean up focus switching logic. Simplified `getAttribute` method for `HtmlInput` elements.	+15/-12
KeyboardModifiersState.java `Enhance Modifier Keys State Management` src/main/java/org/openqa/selenium/htmlunit/KeyboardModifiersState.java Added `addToKeyboard` method to manage keyboard interactions with modifier keys.	+16/-1
ProxyConfigurationManager.java `Introduce ProxyConfigurationManager for Proxy Settings` src/main/java/org/openqa/selenium/htmlunit/ProxyConfigurationManager.java Introduced `ProxyConfigurationManager` class to encapsulate proxy configuration logic. Methods for setting HTTP, SOCKS, and PAC proxy configurations.	+117/-0

Tests

HtmlUnitProxyTest.java `Update Proxy Tests to Use ProxyConfigurationManager` src/test/java/org/openqa/selenium/htmlunit/HtmlUnitProxyTest.java Updated proxy tests to use `ProxyConfigurationManager`.	+31/-10

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Refactor implementation smells

Refactor design smells

CLAassistant · 2024-04-01T01:35:21Z

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qodo-merge-pro · 2024-04-01T01:35:44Z

PR Description updated to latest commit (970fc60)

Copy walkthrough table to "Files Changed" Tab

qodo-merge-pro · 2024-04-01T01:35:54Z

PR Review

⏱️ Estimated effort to review [1-5]	3, because the PR involves multiple files and significant refactoring, including the introduction of new classes and methods, modifications to existing logic, and removal of deprecated code. The changes are well-structured and seem to follow good coding practices, but due to the extent of modifications across different components, a thorough review is required to ensure functionality and integration are preserved.
🧪 Relevant tests	Yes
🔍 Possible issues	Possible Regression: The removal of proxy setting methods from `HtmlUnitDriver` and delegation to `ProxyConfigurationManager` could potentially introduce regressions if not all use cases are covered by the new implementation.
	Code Duplication: The `ProxyConfigurationManager` class introduces methods (`setHTTPProxy`, `setSocksProxy`, etc.) that are very similar to each other and could benefit from further refactoring to reduce code duplication.
	Error Handling: The new proxy configuration management does not seem to include explicit error handling for invalid proxy configurations. It would be beneficial to add validation and error handling to prevent runtime issues.
🔒 Security concerns	No

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qodo-merge-pro · 2024-04-01T01:36:39Z

PR Code Suggestions

Category	Suggestions
Enhancement	Initialize `ProxyConfigurationManager` in the constructor for better design. It's recommended to initialize the `ProxyConfigurationManager` in the constructor of `HtmlUnitDriver` or through dependency injection, rather than instantiating it directly in the method where it's used. This approach enhances the design for better testability and adherence to the single responsibility principle. src/main/java/org/openqa/selenium/htmlunit/HtmlUnitDriver.java [171] -private ProxyConfigurationManager proxyConfigurationManager=new ProxyConfigurationManager(); +// Assuming there's a constructor or an initialization block +this.proxyConfigurationManager = new ProxyConfigurationManager();
	Add exception handling for StaleElementReferenceException in shouldSwitchFocus method. Consider handling `StaleElementReferenceException` in `shouldSwitchFocus` method to maintain the previous behavior where exceptions were caught and handled. src/main/java/org/openqa/selenium/htmlunit/HtmlUnitWebElement.java [258-263] private boolean shouldSwitchFocus(HtmlUnitWebElement oldActiveElement) { - final boolean jsEnabled = driver_.isJavascriptEnabled(); - final boolean oldActiveEqualsCurrent = oldActiveElement.equals(this); - final boolean isOldElementBody = "body".equalsIgnoreCase(oldActiveElement.getTagName()); + try { + final boolean jsEnabled = driver_.isJavascriptEnabled(); + final boolean oldActiveEqualsCurrent = oldActiveElement.equals(this); + final boolean isOldElementBody = "body".equalsIgnoreCase(oldActiveElement.getTagName()); - return jsEnabled && !oldActiveEqualsCurrent && !isOldElementBody; + return jsEnabled && !oldActiveEqualsCurrent && !isOldElementBody; + } catch (final StaleElementReferenceException ex) { + // old element has gone, do nothing + return false; + } }
	Add a break statement to exit the loop once the alert is locked in alert method. Consider adding a break statement inside the if condition after `Thread.sleep` to exit the loop once the alert is locked, to avoid unnecessary iterations. src/main/java/org/openqa/selenium/htmlunit/HtmlUnitTargetLocator.java [194-201] for (int i = 0; i < ALERT_LOCK_RETRY_COUNT; i++) { if (!alert.isLocked()) { try { Thread.sleep(ALERT_LOCK_RETRY_DELAY_MS); } catch (final InterruptedException e) { throw new RuntimeException(e); } + } else { + break; // Exit the loop once the alert is locked } }
Best practice	Encapsulate the logic of applying proxy settings in a method. Instead of directly setting the proxy settings on `proxyConfigurationManager` in the `HtmlUnitDriver` class, consider using a method that encapsulates the logic of applying proxy settings to the `WebClient`. This approach adheres to encapsulation and separation of concerns principles. src/main/java/org/openqa/selenium/htmlunit/HtmlUnitDriver.java [264] -proxyConfigurationManager.setProxySettings(proxy); +// In HtmlUnitDriver class +applyProxySettings(proxy); +// This method then uses proxyConfigurationManager internally
	Add input validation to proxy configuration methods to enhance robustness. The `ProxyConfigurationManager` class should validate the input parameters for methods like `setHTTPProxy`, `setSocksProxy`, and others to ensure they are not null or invalid, which could lead to runtime errors. Adding input validation enhances the robustness of the code. src/main/java/org/openqa/selenium/htmlunit/ProxyConfigurationManager.java [90-93] public void setHTTPProxy(final String host, final int port, final List<String> noProxyHosts) { + if (host == null \|\| host.trim().isEmpty()) throw new IllegalArgumentException("Host cannot be null or empty"); + if (port < 0) throw new IllegalArgumentException("Port cannot be negative"); this.proxyConfig.setProxyHost(host); this.proxyConfig.setProxyPort(port); - noProxyHosts.forEach(this.proxyConfig::addHostsToProxyBypass); + if (noProxyHosts != null) { + noProxyHosts.forEach(this.proxyConfig::addHostsToProxyBypass); + } }
	Use a more specific exception for handling InterruptedException in alert method. Replace the direct instantiation of `RuntimeException` with a more specific exception or create a custom exception class to provide more context about the error. src/main/java/org/openqa/selenium/htmlunit/HtmlUnitTargetLocator.java [197-199] try { Thread.sleep(ALERT_LOCK_RETRY_DELAY_MS); } catch (final InterruptedException e) { - throw new RuntimeException(e); + throw new AlertLockInterruptedException("Interrupted while waiting for alert lock", e); } +// Elsewhere in the class or package +public class AlertLockInterruptedException extends RuntimeException { + public AlertLockInterruptedException(String message, Throwable cause) { + super(message, cause); + } +} +
Maintainability	Refactor `setHTTPProxy` and `setSocksProxy` to avoid code duplication. The `setHTTPProxy` and `setSocksProxy` methods in `ProxyConfigurationManager` have overlapping functionality. Consider refactoring these methods to avoid code duplication, possibly by extracting the common logic into a private method. src/main/java/org/openqa/selenium/htmlunit/ProxyConfigurationManager.java [90-98] -public void setHTTPProxy(final String host, final int port, final List<String> noProxyHosts) { +private void configureProxy(final String host, final int port, final List<String> noProxyHosts, boolean isSocks) { this.proxyConfig.setProxyHost(host); this.proxyConfig.setProxyPort(port); + if (isSocks) { + this.proxyConfig.setSocksProxy(true); + } noProxyHosts.forEach(this.proxyConfig::addHostsToProxyBypass); } -public void setSocksProxy(final String host, final int port, final List<String> noProxyHosts) { - this.proxyConfig.setSocksProxy(true); - setHTTPProxy(host, port, noProxyHosts); -}
	Remove commented-out code for better maintainability. The method `sendKeys` in `HtmlUnitKeyboard` class has commented-out code that seems to be an old implementation. It's a good practice to remove such commented-out code to keep the codebase clean and maintainable. src/main/java/org/openqa/selenium/htmlunit/HtmlUnitKeyboard.java [106-120] -// private void addToKeyboard(final Keyboard keyboard, final char ch, final boolean isPress) { -// if (HtmlUnitKeyboardMapping.isSpecialKey(ch)) { -// final int keyCode = HtmlUnitKeyboardMapping.getKeysMapping(ch); -// if (isPress) { -// keyboard.press(keyCode); -// modifiersState_.storeKeyDown(ch); -// } -// else { -// keyboard.release(keyCode); -// modifiersState_.storeKeyUp(ch); -// } -// } -// else { -// keyboard.type(ch); -// } -// } +// Code block removed for clarity and maintainability.
	Refactor redundant condition checks into a separate method in getAttribute. Refactor the `getAttribute` method to reduce redundancy by extracting the common condition check into a separate method. src/main/java/org/openqa/selenium/htmlunit/HtmlUnitWebElement.java [285-290] -final boolean isHtmlInput = element_ instanceof HtmlInput; -final boolean isSelectableAttribute = "selected".equals(lowerName) \|\| "checked".equals(lowerName); - -if (isHtmlInput && isSelectableAttribute) { +if (isSelectableInputAttribute(lowerName)) { HtmlInput htmlInput = (HtmlInput) element_; return trueOrNull(htmlInput.isChecked()); } +// Elsewhere in the class +private boolean isSelectableInputAttribute(String attributeName) { + final boolean isHtmlInput = element_ instanceof HtmlInput; + final boolean isSelectableAttribute = "selected".equals(attributeName) \|\| "checked".equals(attributeName); + return isHtmlInput && isSelectableAttribute; +} +
Possible issue	Add null check for keyboard parameter in addToKeyboard method. Ensure that `addToKeyboard` method handles the case where `keyboard` is null to prevent `NullPointerException`. src/main/java/org/openqa/selenium/htmlunit/KeyboardModifiersState.java [64-76] public void addToKeyboard(final Keyboard keyboard, final char ch, final boolean isPress) { + if (keyboard == null) { + throw new IllegalArgumentException("Keyboard cannot be null"); + } if (HtmlUnitKeyboardMapping.isSpecialKey(ch)) { final int keyCode = HtmlUnitKeyboardMapping.getKeysMapping(ch); if (isPress) { keyboard.press(keyCode); storeKeyDown(ch); } else { keyboard.release(keyCode); storeKeyUp(ch); } } else { keyboard.type(ch); } }

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Kushaljp and others added 8 commits March 31, 2024 09:44

refactored implementation smell - complex conditional

54ad32c

refactored implementation smell - complex conditional

4cd0a6e

refactored implementation smell - complex method

d1438ca

refactored implementation smell - magic number

e1236c6

Merge pull request #1 from Kushaljp/refactor-implementation-smells

1c2458b

Refactor implementation smells

refactored design smell - feature envy

1177f51

refactored design smell - insufficient modularization

bce7352

Merge pull request #2 from Kushaljp/refactor-design-smells

970fc60

Refactor design smells

qodo-merge-pro bot added enhancement bug_fix labels Apr 1, 2024

qodo-merge-pro bot added the Review effort [1-5]: 3 label Apr 1, 2024

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