org.apache.poi.examples.ss.ExcelComparator Maven / Gradle / Ivy
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this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
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package org.apache.poi.examples.ss;
import java.io.File;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.*;
import org.apache.poi.ss.usermodel.BorderStyle;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.CellStyle;
import org.apache.poi.ss.usermodel.CellType;
import org.apache.poi.ss.usermodel.Color;
import org.apache.poi.ss.usermodel.DateUtil;
import org.apache.poi.ss.usermodel.FillPatternType;
import org.apache.poi.ss.usermodel.HorizontalAlignment;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.ss.usermodel.WorkbookFactory;
import org.apache.poi.ss.util.CellReference;
import org.apache.poi.xssf.usermodel.XSSFCell;
import org.apache.poi.xssf.usermodel.XSSFCellStyle;
import org.apache.poi.xssf.usermodel.XSSFColor;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
/**
* Utility to compare Excel File Contents cell by cell for all sheets.
*
* This utility will be used to compare Excel File Contents cell by cell for all sheets programmatically.
*
* Below are the list of Attribute comparison supported in this version.
*
*
* - Cell Alignment
* - Cell Border Attributes
* - Cell Data
* - Cell Data-Type
* - Cell Fill Color
* - Cell Fill pattern
* - Cell Font Attributes
* - Cell Font Family
* - Cell Font Size
* - Cell Protection
* - Name of the sheets
* - Number of Columns
* - Number of Rows
* - Number of Sheet
*
*
* (Some of the above attribute comparison only work for *.xlsx format currently. In future it can be enhanced.)
*
* Usage:
*
*
* {@code
* Workbook wb1 = WorkbookFactory.create(new File("workBook1.xls"));
* Workbook wb2 = WorkbookFactory.create(new File("workBook2.xls"));
* List listOfDifferences = ExcelComparator.compare(wb1, wb2);
* for (String differences : listOfDifferences)
* System.out.println(differences);
* System.out.println("DifferenceFound = "+ excelFileDifference.isDifferenceFound);
* }
*
*/
@SuppressWarnings({"java:S106","java:S4823","java:S1192"})
public class ExcelComparator {
private static final String CELL_DATA_DOES_NOT_MATCH = "Cell Data does not Match ::";
private static final String CELL_FONT_ATTRIBUTES_DOES_NOT_MATCH = "Cell Font Attributes does not Match ::";
private static class Locator {
Workbook workbook;
Sheet sheet;
Row row;
Cell cell;
}
private final List listOfDifferences = new ArrayList<>();
private final DateFormat dateFormat = new SimpleDateFormat("EEE MMM dd HH:mm:ss zzz yyyy", Locale.ROOT);
public static void main(String[] args) throws Exception {
if (args.length != 2 || !(new File(args[0]).exists()) || !(new File(args[1]).exists())) {
System.err.println("java -cp "+ExcelComparator.class.getCanonicalName()+" compare(Workbook wb1, Workbook wb2) {
Locator loc1 = new Locator();
Locator loc2 = new Locator();
loc1.workbook = wb1;
loc2.workbook = wb2;
ExcelComparator excelComparator = new ExcelComparator();
excelComparator.compareNumberOfSheets(loc1, loc2 );
excelComparator.compareSheetNames(loc1, loc2);
excelComparator.compareSheetData(loc1, loc2);
return Collections.unmodifiableList(excelComparator.listOfDifferences);
}
/**
* Compare data in all sheets.
*/
private void compareDataInAllSheets(Locator loc1, Locator loc2) {
for (int i = 0; i < loc1.workbook.getNumberOfSheets(); i++) {
if (loc2.workbook.getNumberOfSheets() <= i) {
return;
}
loc1.sheet = loc1.workbook.getSheetAt(i);
loc2.sheet = loc2.workbook.getSheetAt(i);
compareDataInSheet(loc1, loc2);
}
}
private void compareDataInSheet(Locator loc1, Locator loc2) {
for (int j = 0; j <= loc1.sheet.getLastRowNum(); j++) {
if (loc2.sheet.getLastRowNum() <= j) {
return;
}
loc1.row = loc1.sheet.getRow(j);
loc2.row = loc2.sheet.getRow(j);
if ((loc1.row == null) || (loc2.row == null)) {
continue;
}
compareDataInRow(loc1, loc2);
}
}
private void compareDataInRow(Locator loc1, Locator loc2) {
for (int k = 0; k <= loc1.row.getLastCellNum(); k++) {
if (loc2.row.getLastCellNum() <= k) {
return;
}
loc1.cell = loc1.row.getCell(k);
loc2.cell = loc2.row.getCell(k);
if ((loc1.cell == null) || (loc2.cell == null)) {
continue;
}
compareDataInCell(loc1, loc2);
}
}
private void compareDataInCell(Locator loc1, Locator loc2) {
if (isCellTypeMatches(loc1, loc2)) {
final CellType loc1cellType = loc1.cell.getCellType();
switch(loc1cellType) {
case BLANK:
case STRING:
case ERROR:
isCellContentMatches(loc1,loc2);
break;
case BOOLEAN:
isCellContentMatchesForBoolean(loc1,loc2);
break;
case FORMULA:
isCellContentMatchesForFormula(loc1,loc2);
break;
case NUMERIC:
if (DateUtil.isCellDateFormatted(loc1.cell)) {
isCellContentMatchesForDate(loc1,loc2);
} else {
isCellContentMatchesForNumeric(loc1,loc2);
}
break;
default:
throw new IllegalStateException("Unexpected cell type: " + loc1cellType);
}
}
isCellFillPatternMatches(loc1,loc2);
isCellAlignmentMatches(loc1,loc2);
isCellHiddenMatches(loc1,loc2);
isCellLockedMatches(loc1,loc2);
isCellFontFamilyMatches(loc1,loc2);
isCellFontSizeMatches(loc1,loc2);
isCellFontBoldMatches(loc1,loc2);
isCellUnderLineMatches(loc1,loc2);
isCellFontItalicsMatches(loc1,loc2);
isCellBorderMatches(loc1,loc2,'t');
isCellBorderMatches(loc1,loc2,'l');
isCellBorderMatches(loc1,loc2,'b');
isCellBorderMatches(loc1,loc2,'r');
isCellFillBackGroundMatches(loc1,loc2);
}
/**
* Compare number of columns in sheets.
*/
private void compareNumberOfColumnsInSheets(Locator loc1, Locator loc2) {
for (int i = 0; i < loc1.workbook.getNumberOfSheets(); i++) {
if (loc2.workbook.getNumberOfSheets() <= i) {
return;
}
loc1.sheet = loc1.workbook.getSheetAt(i);
loc2.sheet = loc2.workbook.getSheetAt(i);
Iterator ri1 = loc1.sheet.rowIterator();
Iterator ri2 = loc2.sheet.rowIterator();
int num1 = (ri1.hasNext()) ? ri1.next().getPhysicalNumberOfCells() : 0;
int num2 = (ri2.hasNext()) ? ri2.next().getPhysicalNumberOfCells() : 0;
if (num1 != num2) {
String str = String.format(Locale.ROOT, "%s%nworkbook1 -> %s [%d] != workbook2 -> %s [%d]",
"Number Of Columns does not Match ::",
loc1.sheet.getSheetName(), num1,
loc2.sheet.getSheetName(), num2
);
listOfDifferences.add(str);
}
}
}
/**
* Compare number of rows in sheets.
*/
private void compareNumberOfRowsInSheets(Locator loc1, Locator loc2) {
for (int i = 0; i < loc1.workbook.getNumberOfSheets(); i++) {
if (loc2.workbook.getNumberOfSheets() <= i) {
return;
}
loc1.sheet = loc1.workbook.getSheetAt(i);
loc2.sheet = loc2.workbook.getSheetAt(i);
int num1 = loc1.sheet.getPhysicalNumberOfRows();
int num2 = loc2.sheet.getPhysicalNumberOfRows();
if (num1 != num2) {
String str = String.format(Locale.ROOT, "%s%nworkbook1 -> %s [%d] != workbook2 -> %s [%d]",
"Number Of Rows does not Match ::",
loc1.sheet.getSheetName(), num1,
loc2.sheet.getSheetName(), num2
);
listOfDifferences.add(str);
}
}
}
/**
* Compare number of sheets.
*/
private void compareNumberOfSheets(Locator loc1, Locator loc2) {
int num1 = loc1.workbook.getNumberOfSheets();
int num2 = loc2.workbook.getNumberOfSheets();
if (num1 != num2) {
String str = String.format(Locale.ROOT, "%s%nworkbook1 [%d] != workbook2 [%d]",
"Number of Sheets do not match ::",
num1, num2
);
listOfDifferences.add(str);
}
}
/**
* Compare sheet data.
*/
private void compareSheetData(Locator loc1, Locator loc2) {
compareNumberOfRowsInSheets(loc1, loc2);
compareNumberOfColumnsInSheets(loc1, loc2);
compareDataInAllSheets(loc1, loc2);
}
/**
* Compare sheet names.
*/
private void compareSheetNames(Locator loc1, Locator loc2) {
for (int i = 0; i < loc1.workbook.getNumberOfSheets(); i++) {
String name1 = loc1.workbook.getSheetName(i);
String name2 = (loc2.workbook.getNumberOfSheets() > i) ? loc2.workbook.getSheetName(i) : "";
if (!name1.equals(name2)) {
String str = String.format(Locale.ROOT, "%s%nworkbook1 -> %s [%d] != workbook2 -> %s [%d]",
"Name of the sheets do not match ::", name1, i+1, name2, i+1
);
listOfDifferences.add(str);
}
}
}
/**
* Formats the message.
*/
private void addMessage(Locator loc1, Locator loc2, String messageStart, String value1, String value2) {
String str =
String.format(Locale.ROOT, "%s%nworkbook1 -> %s -> %s [%s] != workbook2 -> %s -> %s [%s]",
messageStart,
loc1.sheet.getSheetName(), new CellReference(loc1.cell).formatAsString(), value1,
loc2.sheet.getSheetName(), new CellReference(loc2.cell).formatAsString(), value2
);
listOfDifferences.add(str);
}
/**
* Checks if cell alignment matches.
*/
private void isCellAlignmentMatches(Locator loc1, Locator loc2) {
CellStyle style1 = loc1.cell.getCellStyle();
if (style1 == null) {
return;
}
CellStyle style2 = loc2.cell.getCellStyle();
if (style2 == null) {
return;
}
HorizontalAlignment align1 = style1.getAlignment();
HorizontalAlignment align2 = style2.getAlignment();
if (align1 != align2) {
addMessage(loc1, loc2,
"Cell Alignment does not Match ::",
align1.name(),
align2.name()
);
}
}
/**
* Checks if cell border bottom matches.
*/
private void isCellBorderMatches(Locator loc1, Locator loc2, char borderSide) {
if (!(loc1.cell instanceof XSSFCell)) {
return;
}
CellStyle style1 = loc1.cell.getCellStyle();
if (style1 == null) {
return;
}
CellStyle style2 = loc2.cell.getCellStyle();
if (style2 == null) {
return;
}
boolean b1, b2;
String borderName;
switch (borderSide) {
case 'b':
b1 = style1.getBorderBottom() == BorderStyle.THIN;
b2 = style2.getBorderBottom() == BorderStyle.THIN;
borderName = "BOTTOM";
break;
case 'l':
b1 = style1.getBorderLeft() == BorderStyle.THIN;
b2 = style2.getBorderLeft() == BorderStyle.THIN;
borderName = "LEFT";
break;
case 'r':
b1 = style1.getBorderRight() == BorderStyle.THIN;
b2 = style2.getBorderRight() == BorderStyle.THIN;
borderName = "RIGHT";
break;
case 't':
default:
b1 = style1.getBorderTop() == BorderStyle.THIN;
b2 = style2.getBorderTop() == BorderStyle.THIN;
borderName = "TOP";
break;
}
if (b1 != b2) {
addMessage(loc1, loc2,
"Cell Border Attributes does not Match ::",
(b1 ? "" : "NOT ")+borderName+" BORDER",
(b2 ? "" : "NOT ")+borderName+" BORDER"
);
}
}
/**
* Checks if cell content matches.
*/
private void isCellContentMatches(Locator loc1, Locator loc2) {
String str1 = loc1.cell.toString();
String str2 = loc2.cell.toString();
if (!str1.equals(str2)) {
addMessage(loc1,loc2,CELL_DATA_DOES_NOT_MATCH,str1,str2);
}
}
/**
* Checks if cell content matches for boolean.
*/
private void isCellContentMatchesForBoolean(Locator loc1, Locator loc2) {
boolean b1 = loc1.cell.getBooleanCellValue();
boolean b2 = loc2.cell.getBooleanCellValue();
if (b1 != b2) {
addMessage(loc1,loc2,CELL_DATA_DOES_NOT_MATCH,Boolean.toString(b1),Boolean.toString(b2));
}
}
/**
* Checks if cell content matches for date.
*/
private void isCellContentMatchesForDate(Locator loc1, Locator loc2) {
Date date1 = loc1.cell.getDateCellValue();
Date date2 = loc2.cell.getDateCellValue();
if (!date1.equals(date2)) {
addMessage(loc1, loc2, CELL_DATA_DOES_NOT_MATCH, dateFormat.format(date1), dateFormat.format(date2));
}
}
/**
* Checks if cell content matches for formula.
*/
private void isCellContentMatchesForFormula(Locator loc1, Locator loc2) {
// TODO: actually evaluate the formula / NPE checks
String form1 = loc1.cell.getCellFormula();
String form2 = loc2.cell.getCellFormula();
if (!form1.equals(form2)) {
addMessage(loc1, loc2, CELL_DATA_DOES_NOT_MATCH, form1, form2);
}
}
/**
* Checks if cell content matches for numeric.
*/
private void isCellContentMatchesForNumeric(Locator loc1, Locator loc2) {
// TODO: Check for NaN
double num1 = loc1.cell.getNumericCellValue();
double num2 = loc2.cell.getNumericCellValue();
if (num1 != num2) {
addMessage(loc1, loc2, CELL_DATA_DOES_NOT_MATCH, Double.toString(num1), Double.toString(num2));
}
}
private String getCellFillBackground(Locator loc) {
Color col = loc.cell.getCellStyle().getFillForegroundColorColor();
return (col instanceof XSSFColor) ? ((XSSFColor)col).getARGBHex() : "NO COLOR";
}
/**
* Checks if cell file back ground matches.
*/
private void isCellFillBackGroundMatches(Locator loc1, Locator loc2) {
if(loc1.cell.getCellStyle() == null || loc2.cell.getCellStyle() == null) {
return;
}
String col1 = getCellFillBackground(loc1);
String col2 = getCellFillBackground(loc2);
if (!Objects.equals(col1, col2)) {
addMessage(loc1, loc2, "Cell Fill Color does not Match ::", col1, col2);
}
}
/**
* Checks if cell fill pattern matches.
*/
private void isCellFillPatternMatches(Locator loc1, Locator loc2) {
CellStyle style1 = loc1.cell.getCellStyle();
if (style1 == null) {
return;
}
CellStyle style2 = loc2.cell.getCellStyle();
if (style2 == null) {
return;
}
FillPatternType fill1 = style1.getFillPattern();
FillPatternType fill2 = style2.getFillPattern();
if (fill1 != fill2) {
addMessage(loc1, loc2,
"Cell Fill pattern does not Match ::",
fill1.name(),
fill2.name()
);
}
}
/**
* Checks if cell font bold matches.
*/
private void isCellFontBoldMatches(Locator loc1, Locator loc2) {
if (!(loc1.cell instanceof XSSFCell)) {
return;
}
CellStyle style1 = loc1.cell.getCellStyle();
if (style1 == null) {
return;
}
CellStyle style2 = loc2.cell.getCellStyle();
if (style2 == null) {
return;
}
if(hasInvalidFontIndex(loc1, loc2)) {
return;
}
boolean b1 = ((XSSFCellStyle)style1).getFont().getBold();
boolean b2 = ((XSSFCellStyle)style2).getFont().getBold();
if (b1 != b2) {
addMessage(loc1, loc2,
CELL_FONT_ATTRIBUTES_DOES_NOT_MATCH,
(b1 ? "" : "NOT ")+"BOLD",
(b2 ? "" : "NOT ")+"BOLD"
);
}
}
/**
* Checks if cell font family matches.
*/
private void isCellFontFamilyMatches(Locator loc1, Locator loc2) {
if (!(loc1.cell instanceof XSSFCell)) {
return;
}
CellStyle style1 = loc1.cell.getCellStyle();
if (style1 == null) {
return;
}
CellStyle style2 = loc2.cell.getCellStyle();
if (style2 == null) {
return;
}
if(hasInvalidFontIndex(loc1, loc2)) {
return;
}
String family1 = ((XSSFCellStyle)style1).getFont().getFontName();
String family2 = ((XSSFCellStyle)style2).getFont().getFontName();
if (!family1.equals(family2)) {
addMessage(loc1, loc2, "Cell Font Family does not Match ::", family1, family2);
}
}
private boolean hasInvalidFontIndex(Locator loc1, Locator loc2) {
int fontIdx1 = loc1.cell.getCellStyle().getFontIndex();
int fontCount1 = ((XSSFWorkbook)loc1.workbook).getStylesSource().getFonts().size();
int fontIdx2 = loc2.cell.getCellStyle().getFontIndex();
int fontCount2 = ((XSSFWorkbook)loc2.workbook).getStylesSource().getFonts().size();
if(fontIdx1 >= fontCount1 || fontIdx2 >= fontCount2) {
addMessage(loc1, loc2, "Corrupted file, cell style references a font which is not defined", Integer.toString(fontIdx1), Integer.toString(fontIdx2));
return true;
}
return false;
}
/**
* Checks if cell font italics matches.
*/
private void isCellFontItalicsMatches(Locator loc1, Locator loc2) {
if (!(loc1.cell instanceof XSSFCell)) {
return;
}
CellStyle style1 = loc1.cell.getCellStyle();
if (style1 == null) {
return;
}
CellStyle style2 = loc2.cell.getCellStyle();
if (style2 == null) {
return;
}
if(hasInvalidFontIndex(loc1, loc2)) {
return;
}
boolean b1 = ((XSSFCellStyle)style1).getFont().getItalic();
boolean b2 = ((XSSFCellStyle)style2).getFont().getItalic();
if (b1 != b2) {
addMessage(loc1, loc2,
CELL_FONT_ATTRIBUTES_DOES_NOT_MATCH,
(b1 ? "" : "NOT ")+"ITALICS",
(b2 ? "" : "NOT ")+"ITALICS"
);
}
}
/**
* Checks if cell font size matches.
*/
private void isCellFontSizeMatches(Locator loc1, Locator loc2) {
if (!(loc1.cell instanceof XSSFCell)) {
return;
}
CellStyle style1 = loc1.cell.getCellStyle();
if (style1 == null) {
return;
}
CellStyle style2 = loc2.cell.getCellStyle();
if (style2 == null) {
return;
}
if(hasInvalidFontIndex(loc1, loc2)) {
return;
}
short size1 = ((XSSFCellStyle)style1).getFont().getFontHeightInPoints();
short size2 = ((XSSFCellStyle)style2).getFont().getFontHeightInPoints();
if (size1 != size2) {
addMessage(loc1, loc2,
"Cell Font Size does not Match ::",
Short.toString(size1),
Short.toString(size2)
);
}
}
/**
* Checks if cell hidden matches.
*/
private void isCellHiddenMatches(Locator loc1, Locator loc2) {
CellStyle style1 = loc1.cell.getCellStyle();
if (style1 == null) {
return;
}
CellStyle style2 = loc2.cell.getCellStyle();
if (style2 == null) {
return;
}
boolean b1 = style1.getHidden();
boolean b2 = style2.getHidden();
if (b1 != b2) {
addMessage(loc1, loc2,
"Cell Visibility does not Match ::",
(b1 ? "" : "NOT ")+"HIDDEN",
(b2 ? "" : "NOT ")+"HIDDEN"
);
}
}
/**
* Checks if cell locked matches.
*/
private void isCellLockedMatches(Locator loc1, Locator loc2) {
CellStyle style1 = loc1.cell.getCellStyle();
if (style1 == null) {
return;
}
CellStyle style2 = loc2.cell.getCellStyle();
if (style2 == null) {
return;
}
boolean b1 = style1.getLocked();
boolean b2 = style2.getLocked();
if (b1 != b2) {
addMessage(loc1, loc2,
"Cell Protection does not Match ::",
(b1 ? "" : "NOT ")+"LOCKED",
(b2 ? "" : "NOT ")+"LOCKED"
);
}
}
/**
* Checks if cell type matches.
*/
private boolean isCellTypeMatches(Locator loc1, Locator loc2) {
CellType type1 = loc1.cell.getCellType();
CellType type2 = loc2.cell.getCellType();
if (type1 == type2) {
return true;
}
addMessage(loc1, loc2,
"Cell Data-Type does not Match in :: ",
type1.name(), type2.name()
);
return false;
}
/**
* Checks if cell under line matches.
*/
private void isCellUnderLineMatches(Locator loc1, Locator loc2) {
// TODO: distinguish underline type
if (!(loc1.cell instanceof XSSFCell)) {
return;
}
CellStyle style1 = loc1.cell.getCellStyle();
if (style1 == null) {
return;
}
CellStyle style2 = loc2.cell.getCellStyle();
if (style2 == null) {
return;
}
if(hasInvalidFontIndex(loc1, loc2)) {
return;
}
byte b1 = ((XSSFCellStyle)style1).getFont().getUnderline();
byte b2 = ((XSSFCellStyle)style2).getFont().getUnderline();
if (b1 != b2) {
addMessage(loc1, loc2,
CELL_FONT_ATTRIBUTES_DOES_NOT_MATCH,
(b1 == 1 ? "" : "NOT ")+"UNDERLINE",
(b2 == 1 ? "" : "NOT ")+"UNDERLINE"
);
}
}
}