| /* |
| * ==================================================================== |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * 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 |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * ==================================================================== |
| */ |
| |
| package org.apache.poi.ss.util; |
| |
| import java.io.File; |
| import java.io.FileOutputStream; |
| import java.text.DateFormat; |
| import java.text.SimpleDateFormat; |
| import java.util.Arrays; |
| import java.util.Date; |
| import java.util.Locale; |
| |
| import junit.framework.TestCase; |
| |
| import org.apache.poi.hssf.usermodel.HSSFWorkbook; |
| import org.apache.poi.ss.usermodel.Cell; |
| import org.apache.poi.ss.usermodel.CellStyle; |
| import org.apache.poi.ss.usermodel.DataFormat; |
| 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.util.TempFile; |
| |
| public final class TestDateFormatConverter extends TestCase { |
| private void outputLocaleDataFormats( Date date, boolean dates, boolean times, int style, String styleName ) throws Exception { |
| |
| Workbook workbook = new HSSFWorkbook(); |
| try { |
| String sheetName; |
| if( dates ) { |
| if( times ) { |
| sheetName = "DateTimes"; |
| } else { |
| sheetName = "Dates"; |
| } |
| } else { |
| sheetName = "Times"; |
| } |
| Sheet sheet = workbook.createSheet(sheetName); |
| Row header = sheet.createRow(0); |
| header.createCell(0).setCellValue("locale"); |
| header.createCell(1).setCellValue("DisplayName"); |
| header.createCell(2).setCellValue("Excel " + styleName); |
| header.createCell(3).setCellValue("java.text.DateFormat"); |
| header.createCell(4).setCellValue("Equals"); |
| header.createCell(5).setCellValue("Java pattern"); |
| header.createCell(6).setCellValue("Excel pattern"); |
| |
| int rowNum = 1; |
| for( Locale locale : DateFormat.getAvailableLocales() ) { |
| try { |
| Row row = sheet.createRow(rowNum++); |
| |
| row.createCell(0).setCellValue(locale.toString()); |
| row.createCell(1).setCellValue(locale.getDisplayName(Locale.ROOT)); |
| |
| DateFormat dateFormat; |
| if( dates ) { |
| if( times ) { |
| dateFormat = DateFormat.getDateTimeInstance(style, style, locale); |
| } else { |
| dateFormat = DateFormat.getDateInstance(style, locale); |
| } |
| } else { |
| dateFormat = DateFormat.getTimeInstance(style, locale); |
| } |
| |
| Cell cell = row.createCell(2); |
| |
| cell.setCellValue(date); |
| CellStyle cellStyle = row.getSheet().getWorkbook().createCellStyle(); |
| |
| String javaDateFormatPattern = ((SimpleDateFormat)dateFormat).toPattern(); |
| String excelFormatPattern = DateFormatConverter.convert(locale, javaDateFormatPattern); |
| |
| DataFormat poiFormat = row.getSheet().getWorkbook().createDataFormat(); |
| cellStyle.setDataFormat(poiFormat.getFormat(excelFormatPattern)); |
| row.createCell(3).setCellValue(dateFormat.format(date)); |
| |
| cell.setCellStyle(cellStyle); |
| |
| // the formula returns TRUE is the formatted date in column C equals to the string in column D |
| row.createCell(4).setCellFormula("TEXT(C"+rowNum+",G"+rowNum+")=D" + rowNum); |
| row.createCell(5).setCellValue(javaDateFormatPattern); |
| row.createCell(6).setCellValue(excelFormatPattern); |
| } catch (Exception e) { |
| throw new RuntimeException("Failed for locale: " + locale + ", having locales: " + |
| Arrays.toString(DateFormat.getAvailableLocales()), e); |
| } |
| } |
| |
| File outputFile = TempFile.createTempFile("Locale" + sheetName + styleName, ".xlsx"); |
| FileOutputStream outputStream = new FileOutputStream(outputFile); |
| try { |
| workbook.write(outputStream); |
| } finally { |
| outputStream.close(); |
| } |
| |
| System.out.println("Open " + outputFile.getAbsolutePath()+" in Excel"); |
| } finally { |
| workbook.close(); |
| } |
| } |
| |
| public void testJavaDateFormatsInExcel() throws Exception { |
| Date date = new Date(); |
| |
| outputLocaleDataFormats(date, true, false, DateFormat.DEFAULT, "Default" ); |
| outputLocaleDataFormats(date, true, false, DateFormat.SHORT, "Short" ); |
| outputLocaleDataFormats(date, true, false, DateFormat.MEDIUM, "Medium" ); |
| outputLocaleDataFormats(date, true, false, DateFormat.LONG, "Long" ); |
| outputLocaleDataFormats(date, true, false, DateFormat.FULL, "Full" ); |
| |
| outputLocaleDataFormats(date, true, true, DateFormat.DEFAULT, "Default" ); |
| outputLocaleDataFormats(date, true, true, DateFormat.SHORT, "Short" ); |
| outputLocaleDataFormats(date, true, true, DateFormat.MEDIUM, "Medium" ); |
| outputLocaleDataFormats(date, true, true, DateFormat.LONG, "Long" ); |
| outputLocaleDataFormats(date, true, true, DateFormat.FULL, "Full" ); |
| |
| outputLocaleDataFormats(date, false, true, DateFormat.DEFAULT, "Default" ); |
| outputLocaleDataFormats(date, false, true, DateFormat.SHORT, "Short" ); |
| outputLocaleDataFormats(date, false, true, DateFormat.MEDIUM, "Medium" ); |
| outputLocaleDataFormats(date, false, true, DateFormat.LONG, "Long" ); |
| outputLocaleDataFormats(date, false, true, DateFormat.FULL, "Full" ); |
| } |
| |
| public void testJDK8EmptyLocale() { |
| // JDK 8 seems to add an empty locale-string to the list returned via DateFormat.getAvailableLocales() |
| // therefore we now cater for this special locale as well |
| DateFormatConverter.getPrefixForLocale(new Locale("")); |
| } |
| |
| } |