Well, I have been using the underlying DefaultTypeConverter for a while
across various versions without any problems. The StrutsTypeConverter is
really just a convienence class to abstract you from the XWork converter,
but there is no reason why you can't just use the XWork converter.
Here are 2 examples. I highly recommend them.
public class DateConverter extends DefaultTypeConverter {
Log log = LogFactory.getLog(DateConverter.class);
public Object convertValue(Map map, Object object, Class aClass) {
/***********************************************************Set
Standard Format*/
String[] parsePatterns = {"MM/dd/yy","MM/dd/yyyy", "dd-MMM-yyyy",
"MM.dd.yyyy"};
FastDateFormat df = FastDateFormat.getInstance(parsePatterns[0]);
if (aClass == Date.class) {
/********************************************************Get
First Value in Parameters Array*/
String source = ((String[]) object)[0];
if(source.equals("")) return null;
Date transfer;
try {
transfer = DateUtils.parseDate(source, parsePatterns);
return transfer;
} catch (ParseException e) {
throw new RuntimeException("Cannot convert " + source + " to
calendar type");
}
} else if (aClass == String.class) {
Date o = (Date) object;
return df.format(o);
}
return null;
}
}
or
@Component("employeeConverter")
public class EmployeeConverter extends DefaultTypeConverter {
private EmployeeManager employeeManager;
Log log = LogFactory.getLog(EmployeeConverter.class);
@Override
public Object convertValue(Object value, Class toType) {
if(toType == Employee.class){
String[] ids = (String[])value;
Long id = Long.parseLong(ids[0]);
log.debug("Using " + id + " as the id.");
return employeeManager.get(id);
}
else if(toType == String.class){
log.debug(value.getClass());
if ((Employee)value != null){
return ((Employee)value).getId().toString();
}
else return null;
}
return null;
}
@Autowired
public void setEmployeeManager(EmployeeManager employeeManager) {
this.employeeManager = employeeManager;
}
}
60% of the time, they work all of the time.
Here is the StrutsTypeConverter code. Strange that your method does not get
called. toClass.equals(String.class) and toType == String.class should be
the same thing right? Equals is not overriden in java.lang.Class. I don't
see anything else offhand, but then again I don't use this class.
public Object convertValue(Map context, Object o, Class toClass) {
if (toClass.equals(String.class)) {
return convertToString(context, o);
} else if (o instanceof String[]) {
return convertFromString(context, (String[]) o, toClass);
} else if (o instanceof String) {
return convertFromString(context, new String[]{(String) o},
toClass);
} else {
return performFallbackConversion(context, o, toClass);
}
}
Ryan Peterson-4 wrote:
>
> Hi guys,
>
> I'm working on converting from jsp strings to custom objects, and custom
> objects to string in the jsp.
>
> I'm using StrutsTypeConverter, and the convertFromString method works
> great.
> I'm able to debug/log and the output is as expected. Unfortunately the
> convertToString method is never called. I have seen several references to
> this being a bug: https://issues.apache.org/struts/browse/WW-2367
>
> Has anyone else run into this issue? What kind of workaround did you wind
> up implementing, and would you recommend it?
>
> Thank you for any assistence,
>
> Ryan
>
>
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