feat: add support for multiple header rows #154
Conversation
WalkthroughThe pull request introduces several modifications across multiple classes in the Changes
Possibly related PRs
Suggested reviewers
Thank you for using CodeRabbit. We offer it for free to the OSS community and would appreciate your support in helping us grow. If you find it useful, would you consider giving us a shout-out on your favorite social media? 🪧 TipsChatThere are 3 ways to chat with CodeRabbit:
Note: Be mindful of the bot's finite context window. It's strongly recommended to break down tasks such as reading entire modules into smaller chunks. For a focused discussion, use review comments to chat about specific files and their changes, instead of using the PR comments. CodeRabbit Commands (Invoked using PR comments)
Other keywords and placeholders
CodeRabbit Configuration File (
|
![coderabbitai[bot]](https://avatars.githubusercontent.com/in/347564?s=60&v=4){kind=small}
There was a problem hiding this comment.
Actionable comments posted: 6
🧹 Outside diff range and nitpick comments (4)
src/test/java/com/flowingcode/vaadin/addons/gridexporter/GridExporterMultipleHeaderRowsDemo.java (1)
61-61: Consider using more meaningful demo data.The "Big column" uses random Lorem ipsum text which might not effectively demonstrate the multiple header rows feature. Consider using more realistic data that better represents a real-world use case.
- grid.addColumn(item -> Faker.instance().lorem().characters(30, 50)).setHeader("Big column"); + grid.addColumn(item -> Faker.instance().commerce().productDescription()) + .setHeader("Product Description");src/main/java/com/flowingcode/vaadin/addons/gridexporter/DocxStreamResourceWriter.java (1)
131-134: Consider architectural changes for multiple header supportSupporting multiple header rows in Word documents might require broader architectural changes:
- Table structure modifications to accommodate multiple header rows
- Template updates to handle variable header row counts
- Cell merging and formatting adjustments for complex headers
Consider creating a design document outlining:
- Required changes to Word template structure
- Header row rendering strategy (e.g., cell merging, formatting)
- Template compatibility and migration plan
- Performance implications of multiple header processing
src/main/java/com/flowingcode/vaadin/addons/gridexporter/ExcelStreamResourceWriter.java (1)
414-419: Consider renaming the isHeader parameterThe method hardcodes
isHeader=falsewhen callingfillHeaderOrFooter. Consider renaming this parameter to something more descriptive likeisHeaderSectionto better convey its purpose.- private void fillFooter(Sheet sheet, Cell headersOrFootersCell, - List<Pair<String, Column<T>>> headersOrFooters, boolean isHeader) { + private void fillFooter(Sheet sheet, Cell headersOrFootersCell, + List<Pair<String, Column<T>>> headersOrFooters, boolean isHeaderSection) { List<Pair<List<String>, Column<T>>> headersOrFootersCellSingleRow = headersOrFooters.stream() .map(pair -> Pair.of(List.of(pair.getLeft()), pair.getRight())).collect(Collectors.toList()); - fillHeaderOrFooter(sheet, headersOrFootersCell, headersOrFootersCellSingleRow, isHeader); + fillHeaderOrFooter(sheet, headersOrFootersCell, headersOrFootersCellSingleRow, isHeaderSection);src/main/java/com/flowingcode/vaadin/addons/gridexporter/BaseStreamResourceWriter.java (1)
149-156: Restrict the scope of thecomponentvariableThe variable
componentis declared outside the conditional block but is only used within theelseclause starting at line 153. Moving its declaration inside theelseblock will limit its scope and enhance code readability.Apply this diff to adjust the variable scope:
- Component component; if (obtainCellFunction != null) { headerOrFooter = obtainCellFunction.apply(column); } else { + Component component; component = getHeaderOrFooterComponent.apply(column); if (component != null) { headerOrFooter = component.getElement().getTextRecursively(); } }
📜 Review details
Configuration used: CodeRabbit UI
Review profile: CHILL
📒 Files selected for processing (5)
- src/main/java/com/flowingcode/vaadin/addons/gridexporter/BaseStreamResourceWriter.java (3 hunks)
- src/main/java/com/flowingcode/vaadin/addons/gridexporter/DocxStreamResourceWriter.java (1 hunks)
- src/main/java/com/flowingcode/vaadin/addons/gridexporter/ExcelStreamResourceWriter.java (3 hunks)
- src/test/java/com/flowingcode/vaadin/addons/gridexporter/GridExporterDemoView.java (1 hunks)
- src/test/java/com/flowingcode/vaadin/addons/gridexporter/GridExporterMultipleHeaderRowsDemo.java (1 hunks)
🧰 Additional context used
🪛 ast-grep
src/test/java/com/flowingcode/vaadin/addons/gridexporter/GridExporterMultipleHeaderRowsDemo.java
[warning] 56-57: Detected a cookie where the
Secureflag is either missing or disabled. TheSecurecookie flag instructs the browser to forbid sending the cookie over an insecure HTTP request. Set theSecureflag totrueso the cookie will only be sent over HTTPS.
Context: (
LitRenderer.of("${item.name}").withProperty("name", Person::getName))
Note: [CWE-614]: Sensitive Cookie in HTTPS Session Without 'Secure' Attribute [OWASP A05:2021]: Security Misconfiguration [REFERENCES]
- https://owasp.org/Top10/A05_2021-Security_Misconfiguration
[warning] 93-93: Detected a cookie where the
Secureflag is either missing or disabled. TheSecurecookie flag instructs the browser to forbid sending the cookie over an insecure HTTP request. Set theSecureflag totrueso the cookie will only be sent over HTTPS.
Context: (new Span(columnHeader + " 1"))
Note: [CWE-614]: Sensitive Cookie in HTTPS Session Without 'Secure' Attribute [OWASP A05:2021]: Security Misconfiguration [REFERENCES]
- https://owasp.org/Top10/A05_2021-Security_Misconfiguration
[warning] 95-95: Detected a cookie where the
Secureflag is either missing or disabled. TheSecurecookie flag instructs the browser to forbid sending the cookie over an insecure HTTP request. Set theSecureflag totrueso the cookie will only be sent over HTTPS.
Context: (new Span(columnHeader + " 2"))
Note: [CWE-614]: Sensitive Cookie in HTTPS Session Without 'Secure' Attribute [OWASP A05:2021]: Security Misconfiguration [REFERENCES]
- https://owasp.org/Top10/A05_2021-Security_Misconfiguration
[warning] 56-57: Detected a cookie where the
HttpOnlyflag is either missing or disabled. TheHttpOnlycookie flag instructs the browser to forbid client-side JavaScript to read the cookie. If JavaScript interaction is required, you can ignore this finding. However, set theHttpOnlyflag to true` in all other cases.
Context: (
LitRenderer.of("${item.name}").withProperty("name", Person::getName))
Note: [CWE-1004]: Sensitive Cookie Without 'HttpOnly' Flag [OWASP A05:2021]: Security Misconfiguration [REFERENCES]
- https://owasp.org/Top10/A05_2021-Security_Misconfiguration
[warning] 93-93: Detected a cookie where the
HttpOnlyflag is either missing or disabled. TheHttpOnlycookie flag instructs the browser to forbid client-side JavaScript to read the cookie. If JavaScript interaction is required, you can ignore this finding. However, set theHttpOnlyflag to true` in all other cases.
Context: (new Span(columnHeader + " 1"))
Note: [CWE-1004]: Sensitive Cookie Without 'HttpOnly' Flag [OWASP A05:2021]: Security Misconfiguration [REFERENCES]
- https://owasp.org/Top10/A05_2021-Security_Misconfiguration
[warning] 95-95: Detected a cookie where the
HttpOnlyflag is either missing or disabled. TheHttpOnlycookie flag instructs the browser to forbid client-side JavaScript to read the cookie. If JavaScript interaction is required, you can ignore this finding. However, set theHttpOnlyflag to true` in all other cases.
Context: (new Span(columnHeader + " 2"))
Note: [CWE-1004]: Sensitive Cookie Without 'HttpOnly' Flag [OWASP A05:2021]: Security Misconfiguration [REFERENCES]
- https://owasp.org/Top10/A05_2021-Security_Misconfiguration
🔇 Additional comments (9)
src/test/java/com/flowingcode/vaadin/addons/gridexporter/GridExporterDemoView.java (1)
42-42: LGTM! The demo integration looks good.The addition of
GridExporterMultipleHeaderRowsDemofollows the established pattern and aligns well with the PR objective of showcasing the multiple header rows feature.Let's verify that the new demo class exists and is properly implemented:
✅ Verification successful
Let me gather more information about the demo class implementation since the previous results only confirmed its existence.
The demo class is properly implemented and follows the expected patterns
The verification confirms that:
- The demo class exists and is properly implemented
- It extends
Divas expected for a Vaadin component- It demonstrates the multiple header rows feature by:
- Creating a grid with sample data
- Adding multiple header rows using
appendHeaderRow()- Properly configuring the
GridExporterwith all necessary settings- Following the same patterns as other demos in the codebase
The integration of this demo class into
GridExporterDemoViewis correct and well-implemented.🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Verify the existence and basic structure of the new demo class # Test 1: Check if the demo class exists echo "Checking for the demo class file..." fd "GridExporterMultipleHeaderRowsDemo.java" # Test 2: Verify the class structure echo -e "\nVerifying the class structure..." ast-grep --pattern 'class GridExporterMultipleHeaderRowsDemo { $$$ }'Length of output: 377
Script:
#!/bin/bash # Let's examine the actual implementation of the demo class echo "Checking the demo class implementation..." cat src/test/java/com/flowingcode/vaadin/addons/gridexporter/GridExporterMultipleHeaderRowsDemo.java # Also verify if it extends the base demo class pattern echo -e "\nVerifying class inheritance..." ast-grep --pattern 'class GridExporterMultipleHeaderRowsDemo extends $_ { $$$ }'Length of output: 5126
src/test/java/com/flowingcode/vaadin/addons/gridexporter/GridExporterMultipleHeaderRowsDemo.java (1)
85-87: LGTM!The layout configuration is appropriate for the demo.
src/main/java/com/flowingcode/vaadin/addons/gridexporter/DocxStreamResourceWriter.java (1)
131-134: Consider supporting multiple header rows in Word exportsThe current implementation only uses the first header text (
get(0)) from the list of headers, which seems to discard additional header rows. While the PR objective is to add support for multiple header rows in Excel exports, it might be worth considering extending this functionality to Word exports as well for consistency across export formats.Let's check how this is implemented in other exporters:
Consider the following options:
- If multiple header rows are intentionally not supported in Word exports, document this limitation
- If multiple header rows should be supported, implement similar functionality as in Excel exports
- Extract common header processing logic into a shared utility class to ensure consistent behavior
src/main/java/com/flowingcode/vaadin/addons/gridexporter/ExcelStreamResourceWriter.java (2)
98-98: LGTM: Type change supports multiple header rowsThe updated return type properly supports the new multiple header rows feature.
434-436: Verify impact of row shifting on existing contentThe row shifting operation could potentially affect existing content in the sheet. Please ensure that this operation is safe when there's content below the headers.
✅ Verification successful
Let me gather more context about the row shifting implementation and its usage.
Let me search for test files specifically to see if there's test coverage for this functionality.
Let me check the implementation details of the row shifting logic and its safety measures.
Based on the code analysis, I can now provide a final response about the row shifting concern.
Row shifting implementation is safe for existing content
The implementation is well-designed and safe for the following reasons:
- Row shifting only occurs once (
shiftFirstTimeflag) at the beginning of header/footer processing- The shift amount is precisely calculated based on the actual needed space (
headerOrFooterTexts.size()-1)- The operation preserves existing content by shifting all rows from
startRowtosheet.getLastRowNum()- Subsequent row and cell creation is properly handled with null checks and style preservation
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Search for tests or code that verifies row shifting behavior rg -l "shiftRows.*sheet\.getLastRowNum" --type javaLength of output: 141
Script:
#!/bin/bash # Get more context around the shiftRows usage rg -B 10 -A 10 "shiftRows.*sheet\.getLastRowNum" --type java # Look for tests related to headers/footers rg -l "test.*header|test.*footer" --type javaLength of output: 2828
Script:
#!/bin/bash # Look for test files fd "Test.*\.java$" # Search for any usage of ExcelStreamResourceWriter in test files rg -l "ExcelStreamResourceWriter" --type javaLength of output: 485
Script:
#!/bin/bash # Get the full context of fillHeaderOrFooter method ast-grep --pattern 'fillHeaderOrFooter($$$) { $$$ }' # Check for any error handling or validation around headerOrFooterTexts rg -B 5 -A 5 "headerOrFooterTexts" --type javaLength of output: 4340
src/main/java/com/flowingcode/vaadin/addons/gridexporter/BaseStreamResourceWriter.java (4)
128-130: Consistent usage ofrenderCellTextContentwithobtainCellFunctionIn the
getGridFootersmethod,renderCellTextContentis called withnullforobtainCellFunction. Ensure that passingnullis appropriate and that the method handles this case without issues. If footer cells might require custom handling similar to headers, consider implementing an appropriate function.
Line range hint
134-157: Validate null handling inrenderCellTextContentmethodThe method now accepts a
SerializableFunction<Column<T>, String> obtainCellFunction. Confirm that whenobtainCellFunctionisnull, the method correctly defaults to the existing logic without causing exceptions. Additionally, verify that the method retrieves the correct text content for both headers and footers when components are involved.
26-34: Imports align with new functionalityThe added imports for
HeaderRowandSerializableFunctionare necessary for handling multiple header rows and custom cell rendering functions. This aligns with the new features introduced.
104-121:⚠️ Potential issueEnsure proper handling of header texts in
getHeaderTextsmethodThe new method
getHeaderTextsaggregates header texts from multipleHeaderRowinstances. Please verify that it correctly handles scenarios where header cells might contain components without text, empty strings, or null values to prevent potentialNullPointerExceptions or incorrect header representations.Consider adding unit tests to cover cases such as:
- Headers with empty or null text.
- Headers containing only components.
- Grids with varying numbers of header rows.
...test/java/com/flowingcode/vaadin/addons/gridexporter/GridExporterMultipleHeaderRowsDemo.java
Outdated
Show resolved
Hide resolved
...test/java/com/flowingcode/vaadin/addons/gridexporter/GridExporterMultipleHeaderRowsDemo.java
Outdated
Show resolved
Hide resolved
...test/java/com/flowingcode/vaadin/addons/gridexporter/GridExporterMultipleHeaderRowsDemo.java
Outdated
Show resolved
Hide resolved
src/main/java/com/flowingcode/vaadin/addons/gridexporter/ExcelStreamResourceWriter.java
Show resolved
Hide resolved
src/main/java/com/flowingcode/vaadin/addons/gridexporter/ExcelStreamResourceWriter.java
Show resolved
Hide resolved
src/main/java/com/flowingcode/vaadin/addons/gridexporter/BaseStreamResourceWriter.java
Show resolved
Hide resolved
...test/java/com/flowingcode/vaadin/addons/gridexporter/GridExporterMultipleHeaderRowsDemo.java
Outdated
Show resolved
Hide resolved
Add support for multiple header rows only for excel files
|
There was a problem hiding this comment.
Actionable comments posted: 2
🧹 Outside diff range and nitpick comments (6)
src/test/java/com/flowingcode/vaadin/addons/gridexporter/GridExporterMultipleHeaderRowsDemo.java (4)
46-46: Consider a more specific page title.
The current page title "Multiple Header Rows" is too generic. Consider making it more specific to the grid exporter context, e.g., "Grid Exporter - Multiple Header Rows Demo".
64-64: Remove or replace the "Big column".
The column with random Lorem ipsum text doesn't contribute to demonstrating the multiple header rows functionality. Consider removing it or replacing it with a more meaningful example that showcases the feature's practical use case.
67-73: Document data generation strategy.
The data generation logic includes specific probabilities and ranges that would benefit from explanatory comments. Consider documenting:
- Why 30% of records have null last names
- The significance of the budget range (10000-100000)
- The reason for generating exactly 100 records
103-104: Enhance export file name.
The current file name "GridExport" is generic. Consider including more context about the exported data, such as:
- The type of data (People)
- Number of records
- Export format (Excel/Word)
Example: "PeopleReport_100Records_"
src/main/java/com/flowingcode/vaadin/addons/gridexporter/BaseStreamResourceWriter.java (1)
98-103: Add API documentation for the new return type.
Since BaseStreamResourceWriter will be exposed as public API in the future, this method should be properly documented to explain:
- The structure of the returned list
- The relationship between the list of strings and header rows
- The order of header texts in the list
Add JavaDoc:
+ /**
+ * Returns a list of pairs containing header texts and their corresponding columns.
+ * Each pair contains a list of header texts (one for each header row) and the associated column.
+ * The header texts are ordered from top to bottom header row.
+ *
+ * @param grid the grid to get headers from
+ * @return list of pairs containing header texts and columns
+ */
protected List<Pair<List<String>, Column<T>>> getGridHeaders(Grid<T> grid) {src/main/java/com/flowingcode/vaadin/addons/gridexporter/ExcelStreamResourceWriter.java (1)
414-419: LGTM: Clean adapter implementation for footer handling
The method efficiently converts single-row footers to the new multi-row format while maintaining backward compatibility.
Consider adding a Javadoc comment to clarify the adapter role of this method:
/**
* Adapter method that converts single-row footer data to the multi-row format
* for backward compatibility with existing footer implementations.
*/
private void fillFooter(Sheet sheet, Cell headersOrFootersCell,
List<Pair<String, Column<T>>> headersOrFooters, boolean isHeader) {📜 Review details
Configuration used: CodeRabbit UI
Review profile: CHILL
📒 Files selected for processing (5)
- src/main/java/com/flowingcode/vaadin/addons/gridexporter/BaseStreamResourceWriter.java (3 hunks)
- src/main/java/com/flowingcode/vaadin/addons/gridexporter/DocxStreamResourceWriter.java (1 hunks)
- src/main/java/com/flowingcode/vaadin/addons/gridexporter/ExcelStreamResourceWriter.java (3 hunks)
- src/test/java/com/flowingcode/vaadin/addons/gridexporter/GridExporterDemoView.java (1 hunks)
- src/test/java/com/flowingcode/vaadin/addons/gridexporter/GridExporterMultipleHeaderRowsDemo.java (1 hunks)
🚧 Files skipped from review as they are similar to previous changes (2)
- src/main/java/com/flowingcode/vaadin/addons/gridexporter/DocxStreamResourceWriter.java
- src/test/java/com/flowingcode/vaadin/addons/gridexporter/GridExporterDemoView.java
🧰 Additional context used
📓 Learnings (2)
src/main/java/com/flowingcode/vaadin/addons/gridexporter/BaseStreamResourceWriter.java (2)
Learnt from: javier-godoy
PR: FlowingCode/GridExporterAddon#119
File: src/main/java/com/flowingcode/vaadin/addons/gridexporter/CsvStreamResourceWriter.java:77-93
Timestamp: 2024-06-05T20:11:58.436Z
Learning: User javier-godoy requested to open a follow-up GitHub issue to discuss resource management in the refactored code of CsvStreamResourceWriter, highlighting the absence of try-with-resources in the previous implementation.
Learnt from: javier-godoy
PR: FlowingCode/GridExporterAddon#154
File: src/main/java/com/flowingcode/vaadin/addons/gridexporter/BaseStreamResourceWriter.java:98-103
Timestamp: 2024-10-28T17:35:31.077Z
Learning: `BaseStreamResourceWriter` and its extending classes are not public API currently, but the return type must be refactored as we are going to expose `BaseStreamResourceWriter` in the near future.
src/main/java/com/flowingcode/vaadin/addons/gridexporter/ExcelStreamResourceWriter.java (1)
Learnt from: mlopezFC
PR: FlowingCode/GridExporterAddon#154
File: src/main/java/com/flowingcode/vaadin/addons/gridexporter/ExcelStreamResourceWriter.java:428-429
Timestamp: 2024-10-29T18:31:41.821Z
Learning: In `ExcelStreamResourceWriter.java`, the `headerOrFooterTexts` variable in the `fillHeaderOrFooter` method cannot be null, so adding null checks for it is unnecessary.
🪛 ast-grep
src/test/java/com/flowingcode/vaadin/addons/gridexporter/GridExporterMultipleHeaderRowsDemo.java
[warning] 59-60: Detected a cookie where the HttpOnly flag is either missing or disabled. The HttpOnly cookie flag instructs the browser to forbid client-side JavaScript to read the cookie. If JavaScript interaction is required, you can ignore this finding. However, set the HttpOnly flag to true` in all other cases.
Context: (
LitRenderer.of("${item.name}").withProperty("name", Person::getName))
Note: [CWE-1004]: Sensitive Cookie Without 'HttpOnly' Flag [OWASP A05:2021]: Security Misconfiguration [REFERENCES]
- https://owasp.org/Top10/A05_2021-Security_Misconfiguration
[warning] 88-88: Detected a cookie where the HttpOnly flag is either missing or disabled. The HttpOnly cookie flag instructs the browser to forbid client-side JavaScript to read the cookie. If JavaScript interaction is required, you can ignore this finding. However, set the HttpOnly flag to true` in all other cases.
Context: (new Span(columnHeader + " 1"))
Note: [CWE-1004]: Sensitive Cookie Without 'HttpOnly' Flag [OWASP A05:2021]: Security Misconfiguration [REFERENCES]
- https://owasp.org/Top10/A05_2021-Security_Misconfiguration
[warning] 90-90: Detected a cookie where the HttpOnly flag is either missing or disabled. The HttpOnly cookie flag instructs the browser to forbid client-side JavaScript to read the cookie. If JavaScript interaction is required, you can ignore this finding. However, set the HttpOnly flag to true` in all other cases.
Context: (new Span(columnHeader + " 2"))
Note: [CWE-1004]: Sensitive Cookie Without 'HttpOnly' Flag [OWASP A05:2021]: Security Misconfiguration [REFERENCES]
- https://owasp.org/Top10/A05_2021-Security_Misconfiguration
[warning] 59-60: Detected a cookie where the Secure flag is either missing or disabled. The Secure cookie flag instructs the browser to forbid sending the cookie over an insecure HTTP request. Set the Secure flag to true so the cookie will only be sent over HTTPS.
Context: (
LitRenderer.of("${item.name}").withProperty("name", Person::getName))
Note: [CWE-614]: Sensitive Cookie in HTTPS Session Without 'Secure' Attribute [OWASP A05:2021]: Security Misconfiguration [REFERENCES]
- https://owasp.org/Top10/A05_2021-Security_Misconfiguration
[warning] 88-88: Detected a cookie where the Secure flag is either missing or disabled. The Secure cookie flag instructs the browser to forbid sending the cookie over an insecure HTTP request. Set the Secure flag to true so the cookie will only be sent over HTTPS.
Context: (new Span(columnHeader + " 1"))
Note: [CWE-614]: Sensitive Cookie in HTTPS Session Without 'Secure' Attribute [OWASP A05:2021]: Security Misconfiguration [REFERENCES]
- https://owasp.org/Top10/A05_2021-Security_Misconfiguration
[warning] 90-90: Detected a cookie where the Secure flag is either missing or disabled. The Secure cookie flag instructs the browser to forbid sending the cookie over an insecure HTTP request. Set the Secure flag to true so the cookie will only be sent over HTTPS.
Context: (new Span(columnHeader + " 2"))
Note: [CWE-614]: Sensitive Cookie in HTTPS Session Without 'Secure' Attribute [OWASP A05:2021]: Security Misconfiguration [REFERENCES]
- https://owasp.org/Top10/A05_2021-Security_Misconfiguration
🔇 Additional comments (5)
src/main/java/com/flowingcode/vaadin/addons/gridexporter/BaseStreamResourceWriter.java (3)
26-26: LGTM!
The new imports are appropriate for supporting multiple header rows functionality.
Also applies to: 34-34
Line range hint 134-157: LGTM! Well-structured text content rendering.
The implementation:
- Maintains backward compatibility with existing header/footer handling
- Properly separates concerns between text extraction and component handling
- Includes appropriate error handling
104-121: Verify handling of empty header rows.
The implementation looks good but consider these edge cases:
- Grid with no header rows
- Header rows with mixed content (some cells with text, some with components)
- Header rows with null cells
✅ Verification successful
Let me search for test files and header row related code to verify the edge cases.
Let me examine the implementation details and test scenarios to verify the edge case handling.
Edge cases are properly handled in the implementation
The code already handles the key edge cases appropriately:
- Empty header rows: The
getHeaderRows()returns a list which is safely iterated - Mixed content: The code first checks for direct text via
getText(), then falls back to component text if blank - Null components: There's an explicit null check before accessing component text (
if (component != null))
The demo code also validates the implementation by testing with both text and component-based header cells.
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Search for test cases covering header row edge cases
rg -l "getHeaderRows|setHeaderRows" --type java test/
Length of output: 101
Script:
#!/bin/bash
# Search for test files in the entire repository
fd ".*Test\.java$"
# Search for header row related tests in all java files
rg -l "getHeaderRows|setHeaderRows" --type java
Length of output: 421
Script:
#!/bin/bash
# Check the demo file for header row test scenarios
rg -A 10 "getHeaderRows|setHeaderRows" src/test/java/com/flowingcode/vaadin/addons/gridexporter/GridExporterMultipleHeaderRowsDemo.java
# Look for any null checks or edge case handling in the main implementation
rg -A 5 "headerRows|headerRow" src/main/java/com/flowingcode/vaadin/addons/gridexporter/BaseStreamResourceWriter.java
Length of output: 1464
src/main/java/com/flowingcode/vaadin/addons/gridexporter/ExcelStreamResourceWriter.java (2)
98-98: LGTM: Header structure supports multiple rows
The updated return type List<Pair<List<String>, Column<T>>> correctly implements the multiple header rows feature.
420-438: Verify impact of row shifting on existing content
The row shifting implementation correctly handles multiple header rows, but we should verify its impact on existing sheet content.
Let's check for potential issues with row shifting in the codebase:
✅ Verification successful
Let me gather more context about how the row shifting is used in the codebase.
Let me check how the sheet content is managed before and after the row shifting to better understand the impact.
Based on the code analysis, I can now provide a final response about the row shifting implementation:
Row shifting implementation is safe and properly managed
The implementation correctly handles content preservation because:
- Row shifting is performed only once per operation and only when necessary (headerOrFooterTexts.size() > 1)
- Existing content is properly preserved through careful row management:
- New rows are created only when needed (row == null check)
- Cell styles and content are properly maintained
- The shift operation is performed before populating the new content
- The implementation follows Apache POI's recommended patterns for row manipulation
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Search for any tests or code that might be affected by row shifting
rg -l "shiftRows|getLastRowNum" --type java
Length of output: 133
Script:
#!/bin/bash
# Get more context around shiftRows usage
rg "shiftRows" -B 5 -A 5 --type java
# Also check for any test cases
fd "Test.*\.java" --exec rg -l "shiftRows|getLastRowNum" {}
Length of output: 1485
Script:
#!/bin/bash
# Get broader context around the sheet content management
rg "sheet\.(create|get)Row|getLastRowNum" -B 3 -A 3 --type java
# Also check for any cell content management
rg "cell\.(get|set)Value|setCellStyle" -B 3 -A 3 --type java
Length of output: 11729
...test/java/com/flowingcode/vaadin/addons/gridexporter/GridExporterMultipleHeaderRowsDemo.java
Show resolved
Hide resolved
src/main/java/com/flowingcode/vaadin/addons/gridexporter/ExcelStreamResourceWriter.java
Show resolved
Hide resolved
Add support for multiple header rows only for excel files
Closes #147
Summary by CodeRabbit
Release Notes
New Features
Bug Fixes
DocxStreamResourceWriterandExcelStreamResourceWriterclasses.These updates enhance the flexibility and functionality of the grid exporting features, providing users with more options for data presentation.