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org.primefaces.component.treetable.export.TreeTableExcelExporter Maven / Gradle / Ivy
/*
* The MIT License
*
* Copyright (c) 2009-2023 PrimeTek Informatics
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package org.primefaces.component.treetable.export;
import java.io.IOException;
import java.util.concurrent.atomic.AtomicInteger;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.ss.util.CellRangeAddress;
import org.apache.poi.ss.util.WorkbookUtil;
import org.primefaces.component.api.UIColumn;
import org.primefaces.component.export.ExcelOptions;
import org.primefaces.component.export.ExporterUtils;
import org.primefaces.component.treetable.TreeTable;
import org.primefaces.util.ExcelStylesManager;
import org.primefaces.util.LocaleUtils;
public class TreeTableExcelExporter extends TreeTableExporter {
private ExcelStylesManager stylesManager;
public TreeTableExcelExporter() {
super(new ExcelOptions());
}
@Override
protected void preExport(FacesContext context) throws IOException {
super.preExport(context);
stylesManager = ExcelStylesManager.createExcelStylesManager(document, LocaleUtils.getCurrentLocale(context), options());
}
@Override
protected Workbook createDocument(FacesContext context) throws IOException {
return new HSSFWorkbook();
}
@Override
protected void exportTable(FacesContext context, TreeTable table, int index) throws IOException {
Sheet sheet = createSheet(context, table, index);
super.exportTable(context, table, index);
autoSizeColumn(table, sheet);
}
@Override
protected void preRowExport(FacesContext context, TreeTable table) {
Sheet sheet = sheet();
int sheetRowIndex = sheet.getLastRowNum() + 1;
sheet.createRow(sheetRowIndex);
}
@Override
protected void postExport(FacesContext context) throws IOException {
super.postExport(context);
document.write(os());
}
@Override
protected void exportTabletFacetValue(FacesContext context, TreeTable table, String textValue) {
Sheet sheet = sheet();
int rowIndex = sheet().getLastRowNum();
int colspan = getExportableColumns(table).size();
if (colspan > 1) {
sheet.addMergedRegion(new CellRangeAddress(
rowIndex, // first row (0-based)
rowIndex, // last row (0-based)
0, // first column (0-based)
colspan - 1 // last column (0-based)
));
}
exportColumnFacetValue(context, table, textValue, 0);
}
@Override
protected void exportColumnFacetValue(FacesContext context, TreeTable table, String text, int index) {
Cell cell = row().createCell(index);
cell.setCellValue(stylesManager.createRichTextString(text));
cell.setCellStyle(stylesManager.getFacetStyle());
}
@Override
protected void exportCellValue(FacesContext context, TreeTable table, UIColumn col, String text, int i) {
Cell cell = row().createCell(i);
stylesManager.updateCell(col, cell, text);
}
@Override
protected void exportColumnGroupFacetValue(FacesContext context, TreeTable table, UIColumn column,
AtomicInteger colIndex, String text) {
Sheet sheet = sheet();
int rowIndex = sheet.getLastRowNum();
// by default column has 1 rowspan && colspan
int rowSpan = (column.getExportRowspan() != 0 ? column.getExportRowspan() : column.getRowspan()) - 1;
int colSpan = (column.getExportColspan() != 0 ? column.getExportColspan() : column.getColspan()) - 1;
if (rowSpan > 0 && colSpan > 0) {
colIndex.set(calculateColumnOffset(sheet, rowIndex, colIndex.get()));
sheet.addMergedRegion(new CellRangeAddress(
rowIndex, // first row (0-based)
rowIndex + rowSpan, // last row (0-based)
colIndex.get(), // first column (0-based)
colIndex.get() + colSpan // last column (0-based)
));
exportColumnFacetValue(context, table, text, (short) colIndex.get());
colIndex.set(colIndex.get() + colSpan);
}
else if (rowSpan > 0) {
sheet.addMergedRegion(new CellRangeAddress(
rowIndex, // first row (0-based)
rowIndex + rowSpan, // last row (0-based)
colIndex.get(), // first column (0-based)
colIndex.get() // last column (0-based)
));
exportColumnFacetValue(context, table, text, (short) colIndex.get());
}
else if (colSpan > 0) {
colIndex.set(calculateColumnOffset(sheet, rowIndex, colIndex.get()));
sheet.addMergedRegion(new CellRangeAddress(
rowIndex, // first row (0-based)
rowIndex, // last row (0-based)
colIndex.get(), // first column (0-based)
colIndex.get() + colSpan // last column (0-based)
));
exportColumnFacetValue(context, table, text, (short) colIndex.get());
colIndex.set(colIndex.get() + colSpan);
}
else {
colIndex.set(calculateColumnOffset(sheet, rowIndex, colIndex.get()));
exportColumnFacetValue(context, table, text, (short) colIndex.get());
}
}
@Override
public String getContentType() {
return "application/vnd.ms-excel";
}
@Override
public String getFileExtension() {
return ".xls";
}
protected void autoSizeColumn(TreeTable table, Sheet sheet) {
ExcelOptions options = (ExcelOptions) exportConfiguration.getOptions();
if (options == null || options.isAutoSizeColumn()) {
for (int i = 0; i < getExportableColumns(table).size(); i++) {
sheet.autoSizeColumn(i);
}
}
}
// -- UTILS --
protected int calculateColumnOffset(Sheet sheet, int row, int col) {
for (int j = 0; j < sheet.getNumMergedRegions(); j++) {
CellRangeAddress merged = sheet.getMergedRegion(j);
if (merged.isInRange(row, col)) {
col = merged.getLastColumn() + 1;
}
}
return col;
}
protected Sheet createSheet(FacesContext context, TreeTable table, int index) {
String sheetName = getSheetName(context, table, index);
Sheet sheet = document.createSheet(sheetName);
applyOptions(sheet);
return sheet;
}
protected void applyOptions(Sheet sheet) {
PrintSetup printSetup = sheet.getPrintSetup();
printSetup.setLandscape(true);
printSetup.setPaperSize(PrintSetup.A4_PAPERSIZE);
sheet.setPrintGridlines(true);
}
public String getSheetName(FacesContext context, UIComponent table, int index) {
String sheetName = ExporterUtils.getComponentFacetValue(context, table, "header");
if (sheetName == null) {
sheetName = table.getId() + (index + 1);
}
sheetName = WorkbookUtil.createSafeSheetName(sheetName);
if ("empty".equals(sheetName) || "null".equals(sheetName)) {
sheetName = "Sheet (" + (index + 1) + ")";
}
return sheetName;
}
protected Row row() {
Sheet sheet = sheet();
return sheet.getRow(sheet.getLastRowNum());
}
protected Sheet sheet() {
if (document.getNumberOfSheets() == 0) {
throw new IllegalStateException("No existing sheet");
}
return document.getSheetAt(document.getNumberOfSheets() - 1);
}
}
