Preventing a Logger from Forwarding Log Records to Its Parent
By default, a logger sends a log record not only to its handlers but
to all the handlers of ancestor loggers. If the effects
of the parent handlers are not desired, it is necessary to prevent log
records from being forwarded to the parent.
This example demonstrates how to stop a logger from sending
log records to its parent.
Note: Although the level of a log record is tested against the
logger's log level, this test is not done with any of the logger's
parents. However, the log level of all handlers is still in
effect.
// Get a logger
Logger logger = Logger.getLogger("com.mycompany");
// Stop forwarding log records to ancestor handlers
logger.setUseParentHandlers(false);
// Start forwarding log records to ancestor handlers
logger.setUseParentHandlers(true);
| 8 Jan 2010 - 1:07pm by Swapnil Akre (not verified) |
Here is one for reference; Performs String to Date Validations & Required Date Format conversion:
COPY
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
public class DateFormatter {
public static void main(String[] args) throws ParseException {
boolean isDate;
String ipDateFormat = "yyyy-MM-dd";
String opDateFormat = "MM/dd/yyyy";
String inDate = "2010-13-28";
String finalDate = null;
isDate = isValidDate(inDate, ipDateFormat);
if(isDate){
finalDate = transformDateByFormat(inDate, ipDateFormat, opDateFormat);
}else{
finalDate = "Is not a date";
}
System.out.println(finalDate);
}
public static boolean isValidDate(String inDate, String dtFormat) {
if (inDate == null){
return false;
}
//set the format to use as a constructor argument
SimpleDateFormat formatter = new SimpleDateFormat(dtFormat);
if (inDate.trim().length() != formatter.toPattern().length()){
return false;
}
formatter.setLenient(false);
try {
//parse the inDate parameter
formatter.parse(inDate.trim());
}
catch (ParseException pe) {
return false;
}
return true;
}
public static String transformDateByFormat(String inDate, String inputDateFormat,
String outputDateFormat) {
String strReturnDate = "";
//set the format to use as a constructor argument; Initial formatting is
to parse a String to Date format
SimpleDateFormat formatter = new SimpleDateFormat(inputDateFormat);
formatter.setLenient(false);
Date theDate = new Date();
try {
// parse the inDate parameter
theDate = (Date)formatter.parse(inDate);
System.out.println("inputDateFormat: "+theDate);
formatter = new SimpleDateFormat(outputDateFormat);
// set the format to use as a constructor argument; Change
the date to the required format
strReturnDate = formatter.format(theDate);
System.out.println("strReturnDate: "+strReturnDate);
}catch (ParseException e) {
e.printStackTrace();
}
return strReturnDate;
}
}