Examples with WorkbookEvaluatorProvider org.apache.poi.ss.formula.WorkbookEvaluatorProvider used on opensource projects

Example 1 with WorkbookEvaluatorProvider

use of org.apache.poi.ss.formula.WorkbookEvaluatorProvider in project poi by apache.

the class ConditionalFormats method evaluateRules.

/**
     * Print out a summary of the conditional formatting rules applied to cells on the given sheet.
     * Only cells with a matching rule are printed, and for those, all matching rules are sumarized.
     * @param wb
     * @param sheetName
     */
static void evaluateRules(Workbook wb, String sheetName) {
    final WorkbookEvaluatorProvider wbEvalProv = (WorkbookEvaluatorProvider) wb.getCreationHelper().createFormulaEvaluator();
    final ConditionalFormattingEvaluator cfEval = new ConditionalFormattingEvaluator(wb, wbEvalProv);
    // if cell values have changed, clear cached format results
    cfEval.clearAllCachedValues();
    final Sheet sheet = wb.getSheet(sheetName);
    for (Row r : sheet) {
        for (Cell c : r) {
            final List<EvaluationConditionalFormatRule> rules = cfEval.getConditionalFormattingForCell(c);
            // check rules list for null, although current implementation will return an empty list, not null, then do what you want with results
            if (rules == null || rules.isEmpty())
                continue;
            final CellReference ref = ConditionalFormattingEvaluator.getRef(c);
            if (rules.isEmpty())
                continue;
            System.out.println("\n" + ref.formatAsString() + " has conditional formatting.");
            for (EvaluationConditionalFormatRule rule : rules) {
                ConditionalFormattingRule cf = rule.getRule();
                StringBuilder b = new StringBuilder();
                b.append("\tRule ").append(rule.getFormattingIndex()).append(": ");
                // check for color scale
                if (cf.getColorScaleFormatting() != null) {
                    b.append("\n\t\tcolor scale (caller must calculate bucket)");
                }
                // check for data bar
                if (cf.getDataBarFormatting() != null) {
                    b.append("\n\t\tdata bar (caller must calculate bucket)");
                }
                // check for icon set
                if (cf.getMultiStateFormatting() != null) {
                    b.append("\n\t\ticon set (caller must calculate icon bucket)");
                }
                // check for fill
                if (cf.getPatternFormatting() != null) {
                    final PatternFormatting fill = cf.getPatternFormatting();
                    b.append("\n\t\tfill pattern ").append(fill.getFillPattern()).append(" color index ").append(fill.getFillBackgroundColor());
                }
                // font stuff
                if (cf.getFontFormatting() != null) {
                    final FontFormatting ff = cf.getFontFormatting();
                    b.append("\n\t\tfont format ").append("color index ").append(ff.getFontColorIndex());
                    if (ff.isBold())
                        b.append(" bold");
                    if (ff.isItalic())
                        b.append(" italic");
                    if (ff.isStruckout())
                        b.append(" strikeout");
                    b.append(" underline index ").append(ff.getUnderlineType());
                }
                System.out.println(b);
            }
        }
    }
}