return wb;
}
+ //************ SXSSF-specific methods ***************//
+ @Override
+ public SXSSFWorkbook createWorkbook(int rowAccessWindowSize) {
+ SXSSFWorkbook wb = new SXSSFWorkbook(rowAccessWindowSize);
+ instances.add(wb);
+ return wb;
+ }
+
@Override
public void trackColumnsForAutosizing(Sheet sheet, int...columns) {
for (int cn : columns) {
}
}
+ @Override
+ public void trackAllColumnsForAutosizing(Sheet sheet) {
+ ((SXSSFSheet)sheet).trackAllColumnsForAutoSizing();
+ }
+ //************ End SXSSF-specific methods ***************//
+
@Override
public FormulaEvaluator createFormulaEvaluator(Workbook wb) {
return new XSSFFormulaEvaluator(((SXSSFWorkbook) wb).getXSSFWorkbook());
return new XSSFWorkbook();
}
+ //************ SXSSF-specific methods ***************//
+ @Override
+ public XSSFWorkbook createWorkbook(int rowAccessWindowSize) {
+ return createWorkbook();
+ }
+
@Override
public void trackColumnsForAutosizing(Sheet sheet, int...columns) {}
+ @Override
+ public void trackAllColumnsForAutosizing(Sheet sheet) {}
+ //************ End SXSSF-specific methods ***************//
@Override
public FormulaEvaluator createFormulaEvaluator(Workbook wb) {
return new HSSFWorkbook();
}
+ //************ SXSSF-specific methods ***************//
+ @Override
+ public HSSFWorkbook createWorkbook(int rowAccessWindowSize) {
+ return createWorkbook();
+ }
+
@Override
public void trackColumnsForAutosizing(Sheet sheet, int...columns) {}
+ @Override
+ public void trackAllColumnsForAutosizing(Sheet sheet) {}
+ //************ End SXSSF-specific methods ***************//
@Override
public FormulaEvaluator createFormulaEvaluator(Workbook wb) {
*/
Workbook createWorkbook();
+
+ //************ SXSSF-specific methods ***************//
+ /**
+ * Provides way of creating a SXSSFWorkbook with a specific row access window size.
+ * Equivalent to createWorkbook on others.
+ * @return an instance of Workbook
+ */
+ Workbook createWorkbook(int rowAccessWindowSize);
+
/**
* Only matters for SXSSF - enables tracking of the column
* widths so that autosizing can work. No-op on others.
*/
void trackColumnsForAutosizing(Sheet sheet, int...columns);
+ void trackAllColumnsForAutosizing(Sheet sheet);
+ //************ End SXSSF-specific methods ***************//
/**
* Creates the corresponding {@link FormulaEvaluator} for the
assertEquals("12-312-345-123", formatter.formatCellValue(cell));
}
+
+ @Test
+ public void test58896() throws IOException {
+ final int nrows = 160;
+ final int ncols = 139;
+ final java.io.PrintStream out = System.out;
+
+ // Create a workbook
+ final Workbook wb = _testDataProvider.createWorkbook(nrows+1);
+ final Sheet sh = wb.createSheet();
+ out.println(wb.getClass().getName() + " column autosizing timing...");
+
+ final long t0 = time();
+ _testDataProvider.trackAllColumnsForAutosizing(sh);
+ for (int r=0; r<nrows; r++) {
+ final Row row = sh.createRow(r);
+ for (int c=0; c<ncols; c++) {
+ final Cell cell = row.createCell(c);
+ cell.setCellValue("Cell[r="+r+",c="+c+"]");
+ }
+ }
+ final double populateSheetTime = delta(t0);
+ final double populateSheetTimePerCell_ns = (1000000 * populateSheetTime / (nrows*ncols));
+ out.println("Populate sheet time: " + populateSheetTime + " ms (" + populateSheetTimePerCell_ns + " ns/cell)");
+
+ out.println("\nAutosizing...");
+ final long t1 = time();
+ for (int c=0; c<ncols; c++) {
+ final long t2 = time();
+ sh.autoSizeColumn(c);
+ out.println("Column " + c + " took " + delta(t2) + " ms");
+ }
+ final double autoSizeColumnsTime = delta(t1);
+ final double autoSizeColumnsTimePerColumn = autoSizeColumnsTime / ncols;
+ final double bestFitWidthTimePerCell_ns = 1000000 * autoSizeColumnsTime / (ncols * nrows);
+
+ out.println("Auto sizing columns took a total of " + autoSizeColumnsTime + " ms (" + autoSizeColumnsTimePerColumn + " ms per column)");
+ out.println("Best fit width time per cell: " + bestFitWidthTimePerCell_ns + " ns");
+
+ final double totalTime_s = (populateSheetTime + autoSizeColumnsTime) / 1000;
+ out.println("Total time: " + totalTime_s + " s");
+
+ wb.close();
+
+ //if (bestFitWidthTimePerCell_ns > 50000) {
+ // fail("Best fit width time per cell exceeded 50000 ns: " + bestFitWidthTimePerCell_ns + " ns");
+ //}
+
+ if (totalTime_s > 10) {
+ fail("Total time exceeded 10 seconds: " + totalTime_s + " s");
+ }
+ }
+
+ public long time() {
+ final long currentTime = System.currentTimeMillis();
+ return currentTime;
+ }
+ public double delta(long startTimeMillis) {
+ return time() - startTimeMillis;
+ }
}