package cn.baiweigang.qtaf.toolkit.dbunit.data.excel;
import java.io.IOException;
import java.io.OutputStream;
import java.math.BigDecimal;
import java.util.Date;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
import org.apache.poi.hssf.usermodel.HSSFDataFormat;
import org.apache.poi.hssf.usermodel.HSSFRichTextString;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.dbunit.dataset.Column;
import org.dbunit.dataset.DataSetException;
import org.dbunit.dataset.IDataSet;
import org.dbunit.dataset.ITable;
import org.dbunit.dataset.ITableIterator;
import org.dbunit.dataset.ITableMetaData;
import org.dbunit.dataset.datatype.DataType;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* 说明：因为dbunit写xls文件使用的poi版本较早3.2版本，使用poi3.9时会写入xls文件失败
* 拷贝其写excel的类到此，未做修改，写excel正常
*
* Writes an {@link IDataSet} to an XLS file or OutputStream.
*
* @author gommma (gommma AT users.sourceforge.net)
* @author Last changed by: $Author: gommma $
* @version $Revision: 915 $ $Date: 2008-12-07 14:17:25 +0100 (Sun, 07 Dec 2008) $
* @since 2.4.0
*/
public class XlsDataSetWriter
{
public static final String ZEROS = "0000000000000000000000000000000000000000000000000000";
/**
* A special format pattern used to create a custom {@link HSSFDataFormat} which
* marks {@link Date} values that are stored via POI to an XLS file.
* Note that it might produce problems if a normal numeric value uses this format
* pattern incidentally.
*/
public static final String DATE_FORMAT_AS_NUMBER_DBUNIT = "####################";
/**
* Logger for this class
*/
private static final Logger logger = LoggerFactory.getLogger(XlsDataSetWriter.class);
private HSSFCellStyle dateCellStyle;
/**
* Write the specified dataset to the specified Excel document.
*/
public void write(IDataSet dataSet, OutputStream out)
throws IOException, DataSetException
{
logger.debug("write(dataSet={}, out={}) - start", dataSet, out);
HSSFWorkbook workbook = new HSSFWorkbook();
this.dateCellStyle = createDateCellStyle(workbook);
int index = 0;
ITableIterator iterator = dataSet.iterator();
while(iterator.next())
{
// create the table i.e. sheet
ITable table = iterator.getTable();
ITableMetaData metaData = table.getTableMetaData();
HSSFSheet sheet = workbook.createSheet(metaData.getTableName());
// write table metadata i.e. first row in sheet
workbook.setSheetName(index, metaData.getTableName());
HSSFRow headerRow = sheet.createRow(0);
Column[] columns = metaData.getColumns();
for (int j = 0; j < columns.length; j++)
{
Column column = columns[j];
HSSFCell cell = headerRow.createCell(j);
cell.setCellValue(new HSSFRichTextString(column.getColumnName()));
}
// write table data
for (int j = 0; j < table.getRowCount(); j++)
{
HSSFRow row = sheet.createRow(j + 1);
for (int k = 0; k < columns.length; k++)
{
Column column = columns[k];
Object value = table.getValue(j, column.getColumnName());
if (value != null)
{
HSSFCell cell = row.createCell(k);
if(value instanceof Date){
setDateCell(cell, (Date)value, workbook);
}
else if(value instanceof BigDecimal){
setNumericCell(cell, (BigDecimal)value, workbook);
}
else if(value instanceof Long){
setDateCell(cell, new Date( ((Long)value).longValue()), workbook);
}
else {
cell.setCellValue(new HSSFRichTextString(DataType.asString(value)));
}
}
}
}
index++;
}
// write xls document
workbook.write(out);
out.flush();
}
protected static HSSFCellStyle createDateCellStyle(HSSFWorkbook workbook) {
HSSFDataFormat format = workbook.createDataFormat();
short dateFormatCode = format.getFormat(DATE_FORMAT_AS_NUMBER_DBUNIT);
HSSFCellStyle dateCellStyle = workbook.createCellStyle();
dateCellStyle.setDataFormat(dateFormatCode);
return dateCellStyle;
}
protected void setDateCell(HSSFCell cell, Date value, HSSFWorkbook workbook)
{
// double excelDateValue = HSSFDateUtil.getExcelDate(value);
// cell.setCellValue(excelDateValue);
// cell.setCellType(HSSFCell.CELL_TYPE_NUMERIC);
long timeMillis = value.getTime();
cell.setCellValue( (double)timeMillis );
cell.setCellType(HSSFCell.CELL_TYPE_NUMERIC);
cell.setCellStyle(this.dateCellStyle);
// System.out.println(HSSFDataFormat.getBuiltinFormats());
// TODO Find out correct cell styles for date objects
// HSSFCellStyle cellStyleDate = workbook.createCellStyle();
// cellStyleDate.setDataFormat(HSSFDataFormat.getBuiltinFormat("m/d/yy h:mm"));
//
// HSSFCellStyle cellStyleDateTimeWithSeconds = workbook.createCellStyle();
// cellStyleDateTimeWithSeconds.setDataFormat(HSSFDataFormat.getBuiltinFormat("h:mm:ss"));
//
// HSSFDataFormat dataFormat = workbook.createDataFormat();
// HSSFCellStyle cellStyle = workbook.createCellStyle();
// cellStyle.setDataFormat(dataFormat.getFormat("dd/mm/yyyy hh:mm:ss"));
//
// SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS");
// SimpleDateFormat formatter2 = new SimpleDateFormat("dd/MM/yyyy");
// SimpleDateFormat formatter3 = new SimpleDateFormat("HH:mm:ss.SSS");
//
//
// Date dateValue = (Date)value;
// Calendar cal = null;
//
// // If it is a date value that does not have seconds
// if(dateValue.getTime() % 60000 == 0){
//// cellStyle = cellStyleDate;
// cal=Calendar.getInstance();
// cal.setTimeInMillis(dateValue.getTime());
//
// cell.setCellValue(cal);
// cell.setCellStyle(cellStyle);
//// cell.setCellValue(cal);
// }
// else {
//// HSSFDataFormatter formatter = new HSSFDataFormatter();
//
// // If we have seconds assume that it is only h:mm:ss without date
// // TODO Clean implementation where user can control date formats would be nice
//// double dateDouble = dateValue.getTime() % (24*60*60*1000);
// cal = get1900Cal(dateValue);
//
// String formatted = formatter3.format(dateValue);
// //TODO Format ...
//// cellStyle = cellStyleDateTimeWithSeconds;
// System.out.println("date formatted:"+formatted);
//// HSSFRichTextString s = new HSSFRichTextString(formatted);
//// cell.setCellValue(s);
// cell.setCellType(HSSFCell.CELL_TYPE_NUMERIC);
// cell.setCellValue((double)dateValue.getTime());
// cell.setCellStyle(cellStyleDateTimeWithSeconds);
// }
}
protected void setNumericCell(HSSFCell cell, BigDecimal value, HSSFWorkbook workbook)
{
if(logger.isDebugEnabled())
logger.debug("setNumericCell(cell={}, value={}, workbook={}) - start",
new Object[] {cell, value, workbook} );
cell.setCellValue( ((BigDecimal)value).doubleValue() );
HSSFDataFormat df = workbook.createDataFormat();
int scale = ((BigDecimal)value).scale();
short format;
if(scale <= 0){
format = df.getFormat("####");
}
else {
String zeros = createZeros(((BigDecimal)value).scale());
format = df.getFormat("####." + zeros);
}
if(logger.isDebugEnabled())
logger.debug("Using format '{}' for value '{}'.", String.valueOf(format), value);
HSSFCellStyle cellStyleNumber = workbook.createCellStyle();
cellStyleNumber.setDataFormat(format);
cell.setCellStyle(cellStyleNumber);
}
// public static Date get1900(Date date) {
// Calendar cal = Calendar.getInstance();
// cal.setTimeInMillis(date.getTime() % (24*60*60*1000));
// cal.set(1900, 0, 1); // 1.1.1900
// return cal.getTime();
// }
//
// public static Calendar get1900Cal(Date date) {
// Calendar cal = Calendar.getInstance();
// cal.clear();
//// long hoursInMillis = date.getTime() % (24*60*60*1000);
//// long smallerThanDays = date.getTime() % (24*60*60*1000);
//// cal.setTimeInMillis(date.getTime() % (24*60*60*1000));
// cal.set(Calendar.SECOND, (int) (date.getTime() % (24*60*60*1000)) / (1000) );
// cal.set(Calendar.MINUTE, (int) (date.getTime() % (24*60*60*1000)) / (1000*60) );
// cal.set(Calendar.HOUR, (int) (date.getTime() % (24*60*60*1000)) / (1000*60*60) );
//// cal.set(1900, 0, 1); // 1.1.1900
// System.out.println(cal.isSet(Calendar.DATE));
// return cal;
// }
private static String createZeros(int count) {
return ZEROS.substring(0, count);
}
}