hashmapybx opened a new pull request, #14397:
URL: https://github.com/apache/iceberg/pull/14397
Key Improvements
1. Code Structure Optimization
Splitting the complex testTwoLevelList() method into multiple, clear private
methods
Extracting duplicate logic from writeAndValidate() into a separate method
2. Enhanced Exception Handling
Each method has clear exception handling and detailed error messages
Using throw new IOException(..., e) to preserve the original exception stack
trace
Adding contextual information such as file paths to facilitate debugging
3. Improved Readability
Adding detailed JavaDoc comments to explain each method's functionality
Using meaningful variable names ( expectedIter , actualIter )
Adding assertion messages ( as("Expected more rows at index %d", i) )
4. Resource Management Improvements
A separate createTempFile() method now handles file creation failures
Using a finally block in writeTestDataToParquet() to ensure writer closure
Each try-with-resources block has clear exception handling
5. New Methods
validateTwoLevelListConversion() - Validates two-level list conversion
writeTestDataToParquet() - Writes test data
readAndValidateTwoLevelList() - Read and validate a two-level list
writeRecordsToParquet() - Write records
readAndValidateRecords() - Read and validate records
createTempFile() - Create a temporary file
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