poi/src/testcases/org/apache/poi/ss/util/TestDateFormatConverter.java

131 lines
5.5 KiB
Java

/*
* ====================================================================
* 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 junit.framework.TestCase;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.util.TempFile;
import java.io.File;
import java.io.FileOutputStream;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
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();
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() ) {
Row row = sheet.createRow(rowNum++);
row.createCell(0).setCellValue(locale.toString());
row.createCell(1).setCellValue(locale.getDisplayName());
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);
}
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");
}
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" );
}
}