Java tutorial
/** * Copyright SCN Guichet Entreprises, Capgemini and contributors (2014-2016) * * This software is a computer program whose purpose is to [describe * functionalities and technical features of your software]. * * This software is governed by the CeCILL license under French law and * abiding by the rules of distribution of free software. You can use, * modify and/ or redistribute the software under the terms of the CeCILL * license as circulated by CEA, CNRS and INRIA at the following URL * "http://www.cecill.info". * * As a counterpart to the access to the source code and rights to copy, * modify and redistribute granted by the license, users are provided only * with a limited warranty and the software's author, the holder of the * economic rights, and the successive licensors have only limited * liability. * * In this respect, the user's attention is drawn to the risks associated * with loading, using, modifying and/or developing or reproducing the * software by the user in light of its specific status of free software, * that may mean that it is complicated to manipulate, and that also * therefore means that it is reserved for developers and experienced * professionals having in-depth computer knowledge. Users are therefore * encouraged to load and test the software's suitability as regards their * requirements in conditions enabling the security of their systems and/or * data to be ensured and, more generally, to use and operate it in the * same conditions as regards security. * * The fact that you are presently reading this means that you have had * knowledge of the CeCILL license and that you accept its terms. */ package org.formiz.core.input.xls; import java.util.Iterator; import java.util.Map; import org.apache.commons.lang3.StringUtils; import org.apache.poi.hssf.usermodel.HSSFCell; import org.apache.poi.ss.usermodel.Cell; import org.apache.poi.ss.usermodel.DataFormatter; import org.apache.poi.ss.usermodel.Row; public class RowUtils { private static final DataFormatter FORMATTER = new DataFormatter(); /** * Get the number of columns in this row. * * @param ligneTitres * @return number of columns. */ public static int columnsCount(Row ligneTitres) { Cell cell; int count = 0; Iterator<Cell> cellIterator = ligneTitres.cellIterator(); while (cellIterator.hasNext()) { cell = cellIterator.next(); if (StringUtils.isNotBlank(cell.getStringCellValue())) { count++; } } return count; } /** * Check is row is not blank. * * @param row * @return true if row is not blank. */ public static boolean isNotBlank(Row row) { boolean nonBlankRowFound = false; for (int i = row.getFirstCellNum(); i <= row.getLastCellNum(); i++) { Cell cell = row.getCell(i); if (cell != null && row.getCell(i).getCellType() != HSSFCell.CELL_TYPE_BLANK) { nonBlankRowFound = true; break; } } return nonBlankRowFound; } /** * Create a map with header/row data. * @param header * @param row * @param target * data will be added to this map. */ public static void toMap(Row header, Row row, Map<String, String> target) { Cell cell = null; for (int i = 0; i < columnsCount(header); i++) { cell = row.getCell(i); if (cell == null) { target.put(header.getCell(i).getStringCellValue(), StringUtils.EMPTY); continue; } switch (cell.getCellType()) { case Cell.CELL_TYPE_STRING: target.put(header.getCell(i).getStringCellValue(), cell.getStringCellValue()); break; case Cell.CELL_TYPE_NUMERIC: target.put(header.getCell(i).getStringCellValue(), FORMATTER.formatCellValue(cell)); break; case Cell.CELL_TYPE_BLANK: target.put(header.getCell(i).getStringCellValue(), StringUtils.EMPTY); break; default: target.put(header.getCell(i).getStringCellValue(), StringUtils.EMPTY); break; } } } private RowUtils() { } }