package org.appfuse.util;
import org.apache.commons.beanutils.ConversionException;
import org.apache.commons.lang.StringUtils;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
/**
* 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:dan@getrolling.com">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();
}
}