/**
* Convert a date to a String and a String to a Date
*
* @param type String, Date or Timestamp
* @param value value to convert
* @return Converted value for property population
*/
public Object convert(Class type, Object value) {
if (value == null) {
return null;
} else if (type == Timestamp.class) {
return convertToDate(type, value, DateUtil.getDateTimePattern());
} else if (type == Date.class) {
return convertToDate(type, value, DateUtil.getDatePattern());
} else if (type == String.class) {
return convertToString(type, value);
}
throw new ConversionException(
"Could not convert " + value.getClass().getName() + " to " + type.getName());
}
/** * This class is converts a java.util.Date to a String and a String to a java.util.Date for use as a * Timestamp. It is used by BeanUtils when copying properties. * * @author <a href="mailto:[email protected]">Dan Kibler</a> */ public class TimestampConverter extends DateConverter { /** i18n-ized timestamp format - based on values in ApplicationResources.properties */ public static final String TS_FORMAT = DateUtil.getDatePattern() + " HH:mm:ss.S"; /** * Convert a String to a date * * @param type java.util.Date * @param value the String value * @return a converted date */ protected Object convertToDate(Class type, Object value) { DateFormat df = new SimpleDateFormat(TS_FORMAT); if (value instanceof String) { try { if (StringUtils.isEmpty(value.toString())) { return null; } return df.parse((String) value); } catch (Exception pe) { throw new ConversionException("Error converting String to Timestamp"); } } throw new ConversionException( "Could not convert " + value.getClass().getName() + " to " + type.getName()); } /** * Convert from a java.util.Date to a String * * @param type java.lang.String * @param value the date instance * @return string version of date using default date pattern */ protected Object convertToString(Class type, Object value) { DateFormat df = new SimpleDateFormat(TS_FORMAT); if (value instanceof Date) { try { return df.format(value); } catch (Exception e) { throw new ConversionException("Error converting Timestamp to String"); } } return value.toString(); } }
/**
* Convert a java.util.Date or a java.sql.Timestamp to a String. Or does a toString
*
* @param value value to convert
* @return Converted value for property population
*/
protected Object convertToString(final Object value) {
if (value instanceof Date) {
DateFormat df = new SimpleDateFormat(DateUtil.getDatePattern());
if (value instanceof Timestamp) {
df = new SimpleDateFormat(DateUtil.getDateTimePattern());
}
try {
return df.format(value);
} catch (final Exception e) {
throw new ConversionException("Error converting Date to String", e);
}
} else {
return value.toString();
}
}
/**
* Convert a java.util.Date to a String
*
* @param type Date or Timestamp
* @param value value to convert
* @return Converted value for property population
*/
protected Object convertToString(Class type, Object value) {
if (value instanceof Date) {
DateFormat df = new SimpleDateFormat(DateUtil.getDatePattern());
if (value instanceof Timestamp) {
df = new SimpleDateFormat(DateUtil.getDateTimePattern());
}
try {
return df.format(value);
} catch (Exception e) {
e.printStackTrace();
throw new ConversionException("Error converting Date to String");
}
} else {
return value.toString();
}
}
