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bug 57840: re-use XSSFEvaluationWorkbook when expanding a shared formula; patch from Greg Woolsey 

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1747840 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Javen O'Neal 2016-06-11 02:28:21 +00:00
parent 69ded5b7b0
commit ed3364b6d2
2 changed files with 19 additions and 6 deletions
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19
src/ooxml/java/org/apache/poi/xssf/usermodel/XSSFCell.java
View File

@ -469,16 +469,28 @@ public final class XSSFCell implements Cell {
*/
@Override
public String getCellFormula() {
// existing behavior - create a new XSSFEvaluationWorkbook for every call
return getCellFormula(null);
}
/**
* package/hierarchy use only - reuse an existing evaluation workbook if available for caching
*
* @param fpb evaluation workbook for reuse, if available, or null to create a new one as needed
* @return a formula for the cell
* @throws IllegalStateException if the cell type returned by {@link #getCellType()} is not CELL_TYPE_FORMULA
*/
protected String getCellFormula(XSSFEvaluationWorkbook fpb) {
int cellType = getCellType();
if(cellType != CELL_TYPE_FORMULA) throw typeMismatch(CELL_TYPE_FORMULA, cellType, false);
CTCellFormula f = _cell.getF();
if (isPartOfArrayFormulaGroup() && f == null) {
XSSFCell cell = getSheet().getFirstCellInArrayFormula(this);
return cell.getCellFormula();
return cell.getCellFormula(fpb);
}
if (f.getT() == STCellFormulaType.SHARED) {
return convertSharedFormula((int)f.getSi());
return convertSharedFormula((int)f.getSi(), fpb == null ? XSSFEvaluationWorkbook.create(getSheet().getWorkbook()) : fpb);
}
return f.getStringValue();
}
@ -489,7 +501,7 @@ public final class XSSFCell implements Cell {
* @param si Shared Group Index
* @return non shared formula created for the given shared formula and this cell
*/
private String convertSharedFormula(int si){
private String convertSharedFormula(int si, XSSFEvaluationWorkbook fpb){
XSSFSheet sheet = getSheet();
CTCellFormula f = sheet.getSharedFormula(si);
@ -503,7 +515,6 @@ public final class XSSFCell implements Cell {
CellRangeAddress ref = CellRangeAddress.valueOf(sharedFormulaRange);
int sheetIndex = sheet.getWorkbook().getSheetIndex(sheet);
XSSFEvaluationWorkbook fpb = XSSFEvaluationWorkbook.create(sheet.getWorkbook());
SharedFormula sf = new SharedFormula(SpreadsheetVersion.EXCEL2007);
Ptg[] ptgs = FormulaParser.parse(sharedFormula, fpb, FormulaType.CELL, sheetIndex, getRowIndex());

6
src/ooxml/java/org/apache/poi/xssf/usermodel/XSSFEvaluationWorkbook.java
View File

@ -67,7 +67,9 @@ public final class XSSFEvaluationWorkbook extends BaseXSSFEvaluationWorkbook {
@Override
public Ptg[] getFormulaTokens(EvaluationCell evalCell) {
XSSFCell cell = ((XSSFEvaluationCell)evalCell).getXSSFCell();
return FormulaParser.parse(cell.getCellFormula(), this, FormulaType.CELL, _uBook.getSheetIndex(cell.getSheet()), cell.getRowIndex());
final XSSFCell cell = ((XSSFEvaluationCell)evalCell).getXSSFCell();
final int sheetIndex = _uBook.getSheetIndex(cell.getSheet());
final int rowIndex = cell.getRowIndex();
return FormulaParser.parse(cell.getCellFormula(this), this, FormulaType.CELL, sheetIndex, rowIndex);
}
}