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BAEL-7129 Apply Bold Text Style for an Entire Row Using Apache POI (#15633) 

* PR recreated due to repository truncation

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Ulisses Lima 2024-01-21 05:52:22 -03:00 committed by GitHub
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2
apache-poi-3/pom.xml
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@ -76,7 +76,7 @@
</dependencies>
<properties>
<poi.version>5.2.3</poi.version>
<poi.version>5.2.5</poi.version>
<poiji.version>4.1.1</poiji.version>
<fastexcel.version>0.15.7</fastexcel.version>
<jxl.version>2.6.12</jxl.version>

53
apache-poi-3/src/main/java/com/baeldung/poi/rowstyle/PoiUtils.java Normal file
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@ -0,0 +1,53 @@
package com.baeldung.poi.rowstyle;
import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.file.Path;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.CellStyle;
import org.apache.poi.ss.usermodel.Font;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
public class PoiUtils {
private PoiUtils() {
}
private static void newCell(Row row, String value) {
short cellNum = row.getLastCellNum();
if (cellNum == -1)
cellNum = 0;
Cell cell = row.createCell(cellNum);
cell.setCellValue(value);
}
public static Row newRow(Sheet sheet, String... rowValues) {
Row row = sheet.createRow(sheet.getLastRowNum() + 1);
for (String value : rowValues) {
newCell(row, value);
}
return row;
}
public static CellStyle boldFontStyle(Workbook workbook) {
Font boldFont = workbook.createFont();
boldFont.setBold(true);
CellStyle boldStyle = workbook.createCellStyle();
boldStyle.setFont(boldFont);
return boldStyle;
}
public static void write(Workbook workbook, Path path) throws IOException {
try (FileOutputStream fileOut = new FileOutputStream(path.toFile())) {
workbook.write(fileOut);
}
}
}

150
apache-poi-3/src/test/java/com/baeldung/poi/rowstyle/PoiBoldStyleIntegrationTest.java Normal file
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package com.baeldung.poi.rowstyle;
import static org.junit.jupiter.api.Assertions.assertNotEquals;
import static org.junit.jupiter.api.Assertions.assertNull;
import static org.junit.jupiter.api.Assertions.assertTrue;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.openxml4j.exceptions.InvalidFormatException;
import org.apache.poi.ss.usermodel.CellStyle;
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.xssf.streaming.SXSSFWorkbook;
import org.apache.poi.xssf.usermodel.XSSFCellStyle;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.junit.jupiter.api.Test;
class PoiBoldStyleIntegrationTest {
private void writeSampleSheet(Path destination, Workbook workbook) throws IOException {
Sheet sheet = workbook.createSheet();
CellStyle boldStyle = PoiUtils.boldFontStyle(workbook);
Row header = PoiUtils.newRow(sheet, "Name", "Value", "Details");
header.setRowStyle(boldStyle);
PoiUtils.newRow(sheet, "Albert", "A", "First");
PoiUtils.newRow(sheet, "Jane", "B", "Second");
PoiUtils.newRow(sheet, "Zack", "C", "Third");
PoiUtils.write(workbook, destination);
}
private void assertRowStyleAppliedAndDefaultCellStylesDontMatch(Path sheetFile) throws IOException, InvalidFormatException {
try (Workbook workbook = new XSSFWorkbook(sheetFile.toFile())) {
Sheet sheet = workbook.getSheetAt(0);
Row row0 = sheet.getRow(0);
XSSFCellStyle rowStyle = (XSSFCellStyle) row0.getRowStyle();
assertTrue(rowStyle.getFont()
.getBold());
row0.forEach(cell -> {
XSSFCellStyle style = (XSSFCellStyle) cell.getCellStyle();
assertNotEquals(rowStyle, style);
});
Row row1 = sheet.getRow(1);
XSSFCellStyle row1Style = (XSSFCellStyle) row1.getRowStyle();
assertNull(row1Style);
Files.delete(sheetFile);
}
}
@Test
void givenXssfWorkbook_whenSetRowStyle1stRow_thenOnly1stRowStyled() throws IOException, InvalidFormatException {
Path sheetFile = Files.createTempFile("xssf-row-style", ".xlsx");
try (Workbook workbook = new XSSFWorkbook()) {
writeSampleSheet(sheetFile, workbook);
}
assertRowStyleAppliedAndDefaultCellStylesDontMatch(sheetFile);
}
@Test
void givenSxssfWorkbook_whenSetRowStyle_thenOnly1stRowStyled() throws IOException, InvalidFormatException {
Path sheetFile = Files.createTempFile("sxssf-row-style", ".xlsx");
try (Workbook workbook = new SXSSFWorkbook()) {
writeSampleSheet(sheetFile, workbook);
}
assertRowStyleAppliedAndDefaultCellStylesDontMatch(sheetFile);
}
@Test
void givenHssfWorkbook_whenSetRowStyle_thenOnly1stRowStyled() throws IOException {
Path sheetFile = Files.createTempFile("hssf-row-style", ".xls");
try (Workbook workbook = new HSSFWorkbook()) {
writeSampleSheet(sheetFile, workbook);
}
try (Workbook workbook = new HSSFWorkbook(Files.newInputStream(sheetFile))) {
Sheet sheet = workbook.getSheetAt(0);
Row row0 = sheet.getRow(0);
HSSFCellStyle rowStyle = (HSSFCellStyle) row0.getRowStyle();
assertTrue(rowStyle.getFont(workbook)
.getBold());
row0.forEach(cell -> {
HSSFCellStyle style = (HSSFCellStyle) cell.getCellStyle();
assertNotEquals(rowStyle, style);
});
Row row1 = sheet.getRow(1);
HSSFCellStyle row1Style = (HSSFCellStyle) row1.getRowStyle();
assertNull(row1Style);
Files.delete(sheetFile);
}
}
@Test
void givenXssfWorkbook_whenSetCellStyleForEachRow_thenAllCellsContainStyle() throws IOException, InvalidFormatException {
Path sheetFile = Files.createTempFile("xssf-cell-style", ".xlsx");
try (Workbook workbook = new XSSFWorkbook()) {
Sheet sheet = workbook.createSheet();
CellStyle boldStyle = PoiUtils.boldFontStyle(workbook);
Row header = PoiUtils.newRow(sheet, "Name", "Value", "Details");
header.forEach(cell -> cell.setCellStyle(boldStyle));
PoiUtils.newRow(sheet, "Albert", "A", "First");
PoiUtils.newRow(sheet, "Jane", "B", "Second");
PoiUtils.newRow(sheet, "Zack", "C", "Third");
PoiUtils.write(workbook, sheetFile);
}
try (Workbook workbook = new XSSFWorkbook(sheetFile.toFile())) {
Sheet sheet = workbook.getSheetAt(0);
Row row0 = sheet.getRow(0);
XSSFCellStyle rowStyle = (XSSFCellStyle) row0.getRowStyle();
assertNull(rowStyle);
row0.forEach(cell -> {
XSSFCellStyle style = (XSSFCellStyle) cell.getCellStyle();
assertTrue(style.getFont()
.getBold());
});
Row row1 = sheet.getRow(1);
rowStyle = (XSSFCellStyle) row1.getRowStyle();
assertNull(rowStyle);
Files.delete(sheetFile);
}
}
}