chore: 553: Addressed PR comments from Pull request 564.

[Sathyvs]

Changes related to PushNotificationConfig pagination feature

Description

Addressed PR comments and nitpicks from PR 564

Fixes #553 🦕

[gemini-code-assist]

Summary of Changes

Hello @Sathyvs, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request refines the pagination feature for PushNotificationConfig by introducing a configurable maximum page size and implementing more robust error handling for invalid page tokens. These changes aim to improve the stability and predictability of pagination, ensuring that API requests for configuration listings are handled efficiently and that malformed requests are met with explicit error messages. The update also enhances the flexibility of configuration management by allowing default properties to be overridden more easily.

Highlights

• Configurable Maximum Page Size: Introduced a configurable maximum page size for listing push notification configurations. This allows the system to enforce limits on requested page sizes, defaulting to 100 but enabling overrides via the A2AConfigProvider.
• Enhanced Page Token Validation: The getInfo method now includes stricter validation for the pageToken format. Malformed tokens will explicitly throw an InvalidParamsError, providing clearer feedback to API consumers instead of silently ignoring invalid input.
• Refactored Page Token Parsing: The internal logic for parsing the pageToken into its timestamp and ID components has been refactored for improved clarity and to facilitate earlier validation within the getInfo method.
• Improved Test Coverage for Pagination: New integration tests have been added to verify the page size capping functionality. Existing tests were updated to reflect the new InvalidParamsError behavior when encountering malformed page tokens, ensuring robust error handling.
• Configurable Default Properties Loading: The mechanism for loading default configuration properties has been made configurable. This allows for easier management of environment-specific or test-specific default property files, as demonstrated by the addition of a2a-test-defaults.properties.

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[gemini-code-assist]

Code Review

This pull request addresses feedback from a previous one, primarily by making the page size for push notification configuration pagination configurable. The changes are generally well-implemented. I've identified a few areas for improvement: enhancing the robustness of configuration loading, correcting some inconsistencies in a new test case, and resolving a duplicate dependency in a pom.xml file. My detailed comments provide specific suggestions for each of these points.

[gemini-code-assist]

This change introduces a duplicate dependency on io.quarkus:quarkus-arc. An existing dependency is declared on lines 63-84 with test scope. Having duplicate dependencies can cause issues with dependency resolution and is generally bad practice.

Please remove this new dependency block. If quarkus-arc is needed at compile time, the scope of the existing dependency declaration should be changed from test to compile (by removing the <scope>test</scope> element).

[gemini-code-assist]

The initConfig method is not robust against potential configuration errors. If the a2a.push-notification-config.max-page-size property is misconfigured with a non-numeric value, Integer.parseInt will throw a NumberFormatException, causing the application startup to fail. While failing fast is a valid strategy for configuration errors, a more resilient approach would be to handle this exception, log a warning, and fall back to a sensible default value (e.g., 100, as mentioned in the Javadoc).

    void initConfig() {
        try {
            maxPageSize = Integer.parseInt(configProvider.getValue(A2A_PUSH_NOTIFICATION_MAX_PAGE_SIZE));
        } catch (NumberFormatException | IllegalArgumentException e) {
            LOGGER.warn("Failed to read '{}' configuration, falling back to default page size of 100.", A2A_PUSH_NOTIFICATION_MAX_PAGE_SIZE, e);
            maxPageSize = 100;
        }
    }

[gemini-code-assist]

The comment on line 567 is misleading. It states that 2 configs should be returned, but the test's configured maxPageSize is 5, and the assertion correctly checks for 5. The comment should be updated to reflect the actual expected behavior.

Suggested change

	// Should return 2 configs (capped to maxPageSize from test config), not 5
	assertEquals(5, result.configs().size(),
	"Page size should be capped to configured maxPageSize (5 in tests) when requested size exceeds limit");
	// Should return 5 configs (capped to maxPageSize from test config), not 7
	assertEquals(5, result.configs().size(),
	"Page size should be capped to configured maxPageSize (5 in tests) when requested size exceeds limit");

[gemini-code-assist]

The assertion message here contains a typo. It should state that all 7 configs are expected to be retrieved, not 5.

Suggested change

	assertEquals(7, allConfigIds.size(),
	"Should retrieve all 5 configs across multiple pages");
	assertEquals(7, allConfigIds.size(),
	"Should retrieve all 7 configs across multiple pages");