/* Copyright c 2005-2012.
* Licensed under GNU LESSER General Public License, Version 3.
* http://www.gnu.org/licenses
*/
package org.beangle.commons.converters;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import org.apache.commons.beanutils.ConversionException;
import org.apache.commons.beanutils.Converter;
import org.apache.commons.lang.StringUtils;
import org.apache.commons.lang.math.NumberUtils;
public class DateConverter implements Converter {
public Object convert(@SuppressWarnings("rawtypes") final Class type, final Object value) {
if (value == null) {
return null;
} else if (type == Date.class) {
return convertToDate(type, value);
} else if (type == String.class) { return convertToString(type, value); }
throw new ConversionException("Could not convert " + value.getClass().getName() + " to "
+ type.getName());
}
/**
* 将字符串格式化为日期<br>
* format 1: yyyy-MM-dd hh:mm:ss<br>
* format 2: yyyyMMdd
*/
@SuppressWarnings("rawtypes")
protected Object convertToDate(final Class type, final Object value) {
if (StringUtils.isEmpty((String) value)) {
return null;
} else {
String dateStr = (String) value;
String[] times = StringUtils.split(dateStr, " ");
String[] dateElems = null;
if (StringUtils.contains(times[0], "-")) {
dateElems = StringUtils.split(times[0], "-");
} else {
dateElems = new String[3];
int yearIndex = "yyyy".length();
dateElems[0] = StringUtils.substring(times[0], 0, yearIndex);
dateElems[1] = StringUtils.substring(times[0], yearIndex, yearIndex + 2);
dateElems[2] = StringUtils.substring(times[0], yearIndex + 2, yearIndex + 4);
}
Calendar gc = GregorianCalendar.getInstance();
gc.set(Calendar.YEAR, NumberUtils.toInt(dateElems[0]));
gc.set(Calendar.MONTH, NumberUtils.toInt(dateElems[1]) - 1);
gc.set(Calendar.DAY_OF_MONTH, NumberUtils.toInt(dateElems[2]));
if (times.length > 1 && StringUtils.isNotBlank(times[1])) {
String[] timeElems = StringUtils.split(times[1], ":");
if (timeElems.length > 0) {
gc.set(Calendar.HOUR_OF_DAY, NumberUtils.toInt(timeElems[0]));
}
if (timeElems.length > 1) {
gc.set(Calendar.MINUTE, NumberUtils.toInt(timeElems[1]));
}
if (timeElems.length > 2) {
gc.set(Calendar.SECOND, NumberUtils.toInt(timeElems[2]));
}
}
return gc.getTime();
}
}
protected Object convertToString(final Class<?> type, final Object value) {
return value.toString();
}
}