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Pull Request Overview
This PR addresses settings mutability issues by implementing a defensive copy pattern for user settings before adjustment. The change prevents side effects when settings are used concurrently for different operations, specifically addressing issue #2543.
- Creates copies of settings objects to prevent unintended mutations of user-provided settings
- Refactors settings classes to use a common
CommonSettingsclass for shared functionality - Adds comprehensive test coverage to verify settings immutability
Reviewed Changes
Copilot reviewed 9 out of 9 changed files in this pull request and generated 3 comments.
Show a summary per file
| File | Description |
|---|---|
| client-v2/src/main/java/com/clickhouse/client/api/internal/CommonSettings.java | New shared settings implementation with copy/merge functionality |
| client-v2/src/main/java/com/clickhouse/client/api/query/QuerySettings.java | Refactored to use CommonSettings with defensive copying |
| client-v2/src/main/java/com/clickhouse/client/api/insert/InsertSettings.java | Refactored to use CommonSettings with defensive copying |
| client-v2/src/main/java/com/clickhouse/client/api/Client.java | Updated to create defensive copies of settings before operations |
| client-v2/src/test/java/com/clickhouse/client/SettingsTests.java | Added comprehensive tests for settings functionality |
| client-v2/src/test/java/com/clickhouse/client/query/QueryTests.java | Added test to verify settings are not mutated during query operations |
| client-v2/src/test/java/com/clickhouse/client/insert/InsertTests.java | Added test to verify settings are not mutated during insert operations |
| jdbc-v2/src/test/java/com/clickhouse/jdbc/PreparedStatementTest.java | Removed test for internal method that no longer exists |
| client-v2/pom.xml | Added Mockito dependency for testing |
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@mzitnik Sonar shows low coverage because of failing because of "low free space" error. |
mzitnik
approved these changes
Aug 23, 2025
| */ | ||
| public boolean isClientRequestEnabled() { | ||
| return (Boolean) rawSettings.get("decompress"); | ||
| Boolean flag = (Boolean) settings.getOption(ClientConfigProperties.COMPRESS_CLIENT_REQUEST.getKey()); |
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Maybe we should have a method getOptionWithDefault
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Summary
Makes a copy of user settings before adjustment to prevent side effects when settings used concurrently for different operations.
Closes #2543
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