/* 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.sql.Date;
import org.apache.commons.beanutils.ConversionException;
import org.apache.commons.beanutils.Converter;
import org.apache.commons.lang.StringUtils;
/**
* This class is converts a java.util.Date to a String and a String to a
* java.util.Date.
*/
public class SqlDateConverter implements Converter {
@SuppressWarnings("rawtypes")
public Object convert(final Class type, final Object value) {
if (value == null) {
return null;
} else if (type == Date.class) {
return convertToDate(value);
} else if (type == String.class) { return convertToString(value); }
throw new ConversionException("Could not convert " + value.getClass().getName() + " to "
+ type.getName());
}
/**
* 将日期字符串转换成日期<br>
* format 1: yyyy-MM-dd<br>
* format 2: yyyyMMdd
*
* @param type
* @param value
* @return
*/
protected Object convertToDate(final Object value) {
if (value instanceof String) {
if (StringUtils.isEmpty((String) value)) {
return null;
} else {
String dateStr = (String) value;
if (!StringUtils.contains(dateStr, "-")) {
StringBuilder dateBuf = new StringBuilder(dateStr);
dateBuf.insert("yyyyMM".length(), '-');
dateBuf.insert("yyyy".length(), '-');
dateStr = dateBuf.toString();
}
return Date.valueOf(dateStr);
}
} else if (value instanceof java.util.Date) {
return new Date(((java.util.Date) value).getTime());
} else {
return null;
}
}
protected Object convertToString(Object value) {
return value.toString();
}
}