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Custom error message per converter

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Is it possible to configure a custom error message per converter? For example I have this in my xwork-conversion.properties:

java.util.Date=mx.com.afirme.midas2.converter.DateConverter

Whenever a Date conversion fails in any action I'd like to show a message like this:

Incorrect format, expected mm/dd/yyyy

I don't want to define a custom message per property as mentioned in the documentation:

http://struts.apache.org/release/2.3.x/docs/type-conversion.html

"However, sometimes you may wish to override this message on a per-field basis. You can do this by adding an i18n key associated with just your action (Action.properties) using the pattern invalid.fieldvalue.xxx, where xxx is the field name."

posted May 22, 2013 by anonymous

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Could you show source code of your DateConverter?
Sure.

public class DateConverter extends StrutsTypeConverter {
 @SuppressWarnings("rawtypes")
 public Object convertFromString(Map context, String[] values, Class toClass) {
 if (values != null && values.length > 0 && values[0] != null &
 try {
 return sdf.parse(values[0]);
 }
 catch(ParseException e) {
 throw new TypeConversionException(e);
 }
 }
 return null;
 }
 @SuppressWarnings("rawtypes")
 public String convertToString(Map context, Object o) {
 if (o instanceof Date) {
 SimpleDateFormat sdf = new SimpleDateFormat("MM/dd/yyyy");
 return sdf.format((Date)o);
 }
 return "";
 }
}

1 Answer

0 votes

Conversion errors are always reported with a default message defined in the xwork.default.invalid.fieldvalue (Invalid field value for field "xxx", where xxx is the field name) but what I want is a way to be more specific depending of the type. For example for java.math.BigDecimal a custom message for java.lang.Integer another message and so on and if no custom message is found the default is showed.

answer May 23, 2013 by anonymous
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