I have read all previous ask question but there is no solution I found.
I need to modify excel file with large data over 40,000 rows.
Steps done in below code.
Create new file for Result
Copy file 2 for result to highlight not equal cell
Create Workbook for 2 compare excel files
Temp XSSFWorkbook
XSSF cellStyleRed as SXSSFWorkbook cannot have cellstyle color
keep 100 rows in memory, exceeding rows will be flushed to disk
compareTwoRows from both excel file not equal will change cellstyle color to
red on Result file.
Problem is with below code Result file is blank there is no content.
I understand my code is incorrect as SXSSFWorkbook is creating new sheet.
HOW CAN I update result file with change cell color?
package pageobjects;
import java.awt.Color;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.file.FileSystem;
import java.nio.file.FileSystems;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.StandardCopyOption;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.sl.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.CellStyle;
import org.apache.poi.ss.usermodel.DataFormatter;
import org.apache.poi.ss.usermodel.FillPatternType;
import org.apache.poi.ss.usermodel.IndexedColors;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.util.CellReference;
import org.apache.poi.xssf.streaming.SXSSFCell;
import org.apache.poi.xssf.streaming.SXSSFRow;
import org.apache.poi.xssf.streaming.SXSSFSheet;
import org.apache.poi.xssf.streaming.SXSSFWorkbook;
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.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.testng.Reporter;
import property.IHomePage;
import utility.SeleniumUtils;
public class Excelcom2try extends SeleniumUtils implements IHomePage {
public static FileOutputStream opstr = null;
XSSFCellStyle cellStyleRed = null;
SXSSFWorkbook sxssfWorkbook = null;
SXSSFSheet sheet = null;
SXSSFRow row3edit = null;
SXSSFCell Cell = null;
@SuppressWarnings("resource")
public void compare() {
try {
// Create new file for Result
XSSFWorkbook workbook = new XSSFWorkbook();
FileOutputStream fos = new FileOutputStream(new
File("\\\\sd\\comparisonfile\\ResultFile.xlsx"));
workbook.write(fos);
workbook.close();
Thread.sleep(2000);
// get input for 2 compare excel files
FileInputStream excellFile1 = new FileInputStream(new
File("new
File("\\\\sd\\comparisonfile\\UAT_Relationship.xlsx"));
FileInputStream excellFile2 = new FileInputStream(new
File(""\\\\sd\\comparisonfile\\Prod_Relationship.xlsx"));
// Copy file 2 for result to highlight not equal cell
FileSystem system = FileSystems.getDefault();
Path original =
system.getPath(""\\\\sd\\comparisonfile\\Prod_Relationship.xlsx");
Path target =
system.getPath(""\\\\sd\\comparisonfile\\ResultFile.xlsx");
try {
// Throws an exception if the original file is
not found.
Files.copy(original, target,
StandardCopyOption.REPLACE_EXISTING);
Reporter.log("Successfully Copy File 2 for
result to highlight not equal
cell");
Add_Log.info("Successfully Copy File 2 for
result to highlight not equal
cell");
} catch (IOException ex) {
Reporter.log("Unable to Copy File 2 ");
Add_Log.info("Unable to Copy File 2 ");
}
Thread.sleep(2000);
FileInputStream excelledit3 = new FileInputStream(new
File("\\\\sd\\comparisonfile\\ResultFile.xlsx"));
// Create Workbook for 2 compare excel files
XSSFWorkbook workbook1 = new XSSFWorkbook(excellFile1);
XSSFWorkbook workbook2 = new XSSFWorkbook(excellFile2);
// Temp workbook
XSSFWorkbook workbook3new = new XSSFWorkbook();
//XSSF cellStyleRed as SXSSFWorkbook cannot have
cellstyle color
cellStyleRed = workbook3new.createCellStyle();
cellStyleRed.setFillForegroundColor(IndexedColors.RED.getIndex());
cellStyleRed.setFillPattern(FillPatternType.SOLID_FOREGROUND);
// Get first/desired sheet from the workbook to compare
both excel sheets
XSSFSheet sheet1 = workbook1.getSheetAt(0);
XSSFSheet sheet2 = workbook2.getSheetAt(0);
//XSSFWorkbook workbook3new temp convert to
SXSSFWorkbook
// keep 100 rows in memory, exceeding rows will be
flushed to disk
sxssfWorkbook = new SXSSFWorkbook(100);
sxssfWorkbook.setCompressTempFiles(true);
sheet = sxssfWorkbook.createSheet();
// Compare sheets
if (compareTwoSheets(sheet1, sheet2, sheet)) {
Reporter.log("\\n\\nThe two excel sheets are
Equal");
Add_Log.info("\\n\\nThe two excel sheets are
Equal");
} else {
Reporter.log("\\n\\nThe two excel sheets are
Not Equal");
Add_Log.info("\\n\\nThe two excel sheets are
Not Equal");
}
// close files
excellFile1.close();
excellFile2.close();
// excelledit3.close();
opstr.close();
// dispose of temporary files backing this workbook on
disk
}catch (Exception e) {
e.printStackTrace();
}
Reporter.log("Successfully Close All files");
Add_Log.info("Successfully Close All files");
}
// Compare Two Sheets
public boolean compareTwoSheets(XSSFSheet sheet1, XSSFSheet sheet2,
SXSSFSheet sheet) throws IOException {
int firstRow1 = sheet1.getFirstRowNum();
int lastRow1 = sheet1.getLastRowNum();
boolean equalSheets = true;
for (int i = firstRow1; i <= lastRow1; i++) {
Reporter.log("\n\nComparing Row " + i);
Add_Log.info("\n\nComparing Row " + i);
XSSFRow row1 = sheet1.getRow(i);
XSSFRow row2 = sheet2.getRow(i);
//row3edit = sheet.getRow(i);
for(int rownum = 0; rownum < 100; rownum++){
row3edit= sheet.createRow(rownum);
}
if (!compareTwoRows(row1, row2, row3edit)) {
equalSheets = false;
// Write if not equal
// Get error here java.lang.NullPointerException for
row3edit.setRowStyle(cellStyleRed);
//if disable test is completed Successfully
without writing result file
row3edit.setRowStyle(cellStyleRed);
Reporter.log("Row " + i + " - Not Equal");
Add_Log.info("Row " + i + " - Not Equal");
// break;
} else {
Reporter.log("Row " + i + " - Equal");
Add_Log.info("Row " + i + " - Equal");
}
}
// Write if not equal
opstr = new
FileOutputStream(""\\\\sd\\comparisonfile\\ResultFile.xlsx");
sxssfWorkbook.write(opstr);
opstr.close();
return equalSheets;
}
// Compare Two Rows
public boolean compareTwoRows(XSSFRow row1, XSSFRow row2, SXSSFRow
row3edit) throws IOException {
if ((row1 == null) && (row2 == null)) {
return true;
} else if ((row1 == null) || (row2 == null)) {
return false;
}
int firstCell1 = row1.getFirstCellNum();
int lastCell1 = row1.getLastCellNum();
boolean equalRows = true;
// Compare all cells in a row
for (int i = firstCell1; i <= lastCell1; i++) {
XSSFCell cell1 = row1.getCell(i);
XSSFCell cell2 = row2.getCell(i);
for(int cellnum = 0; cellnum < 10; cellnum++){
Cell = row3edit.createCell(cellnum);
String address = new
CellReference(Cell).formatAsString();
Cell.setCellValue(address);
}
if (!compareTwoCells(cell1, cell2)) {
equalRows = false;
Reporter.log(" Cell " + i + " - NOt Equal
" + cell1 + " === " +
cell2);
Add_Log.info(" Cell " + i + " - NOt Equal
" + cell1 + " === " +
cell2);
break;
} else {
Reporter.log(" Cell " + i + " - Equal " +
cell1 + " === " +
cell2);
Add_Log.info(" Cell " + i + " - Equal " +
cell1 + " === " +
cell2);
}
}
return equalRows;
}
// Compare Two Cells
@SuppressWarnings("deprecation")
public static boolean compareTwoCells(XSSFCell cell1, XSSFCell cell2) {
if ((cell1 == null) && (cell2 == null)) {
return true;
} else if ((cell1 == null) || (cell2 == null)) {
return false;
}
boolean equalCells = false;
int type1 = cell1.getCellType();
int type2 = cell2.getCellType();
if (type2 == type1) {
if (cell1.getCellStyle().equals(cell2.getCellStyle())) {
// Compare cells based on its type
switch (cell1.getCellType()) {
case HSSFCell.CELL_TYPE_FORMULA:
if
(cell1.getCellFormula().equals(cell2.getCellFormula())) {
equalCells = true;
} else {
}
break;
case HSSFCell.CELL_TYPE_NUMERIC:
if (cell1.getNumericCellValue() ==
cell2.getNumericCellValue()) {
equalCells = true;
} else {
}
break;
case HSSFCell.CELL_TYPE_STRING:
if
(cell1.getStringCellValue().equals(cell2.getStringCellValue())) {
equalCells = true;
} else {
}
break;
case HSSFCell.CELL_TYPE_BLANK:
if (cell2.getCellType() ==
HSSFCell.CELL_TYPE_BLANK) {
equalCells = true;
} else {
}
break;
case HSSFCell.CELL_TYPE_BOOLEAN:
if (cell1.getBooleanCellValue() ==
cell2.getBooleanCellValue()) {
equalCells = true;
} else {
}
break;
case HSSFCell.CELL_TYPE_ERROR:
if (cell1.getErrorCellValue() ==
cell2.getErrorCellValue()) {
equalCells = true;
} else {
}
break;
default:
if
(cell1.getStringCellValue().equals(cell2.getStringCellValue())) {
equalCells = true;
} else {
}
break;
}
} else {
return false;
}
} else {
return false;
}
return equalCells;
}
}
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