/**
* Implement the interface for validating and converting to internal object. Null is a valid
* successful return, so errors are indicated only by existance or not of a message in the
* messageBuffer.
*/
public Object validateAndConvert(String value, Object originalValue, StringBuffer messageBuffer) {
// handle null, which is shown as the special string "<null>"
if (value.equals("<null>") || value.equals("")) return null;
// Do the conversion into the object in a safe manner
try {
if (useJavaDefaultFormat) {
// allow the user to enter just the hour or just hour and minute
// and assume the un-entered values are 0
int firstColon = value.indexOf(":");
if (firstColon == -1) {
// user just entered the hour, so append min & sec
value = value + ":0:0";
} else {
// user entered hour an min. See if they also entered secs
if (value.indexOf(":", firstColon + 1) == -1) {
// user did not enter seconds
value = value + ":0";
}
}
Object obj = Time.valueOf(value);
return obj;
} else {
// use the DateFormat to parse
java.util.Date javaDate = dateFormat.parse(value);
return new Time(javaDate.getTime());
}
} catch (Exception e) {
messageBuffer.append(e.toString() + "\n");
// ?? do we need the message also, or is it automatically part of the toString()?
// messageBuffer.append(e.getMessage());
return null;
}
}
/** User has clicked OK in the surrounding JPanel, so save the current state of all variables */
public void ok() {
// get the values from the controls and set them in the static properties
useJavaDefaultFormat = useJavaDefaultFormatChk.isSelected();
DTProperties.put(
thisClassName, "useJavaDefaultFormat", Boolean.valueOf(useJavaDefaultFormat).toString());
localeFormat = dateFormatTypeDrop.getValue();
dateFormat = new ThreadSafeDateFormat(localeFormat, true); // lenient is set next
DTProperties.put(thisClassName, "localeFormat", Integer.toString(localeFormat));
lenient = lenientChk.isSelected();
dateFormat.setLenient(lenient);
DTProperties.put(thisClassName, "lenient", Boolean.valueOf(lenient).toString());
initDateFormat(localeFormat, lenient);
}
/** Render a value into text for this DataType. */
public String renderObject(Object value) {
// use the Java default date-to-string
if (useJavaDefaultFormat == true || value == null)
return (String) _renderer.renderObject(value);
// use a date formatter
try {
return (String) _renderer.renderObject(dateFormat.format(value));
} catch (Exception e) {
if (false == _renderExceptionHasBeenLogged) {
_renderExceptionHasBeenLogged = true;
s_log.error("Could not format \"" + value + "\" as date type", e);
}
return (String) _renderer.renderObject(value);
}
}
/** Defines the dateFormat with the specific format and lenient options */
private static void initDateFormat(int format, boolean lenient) {
dateFormat = new ThreadSafeDateFormat(format, true); // lenient is set next
dateFormat.setLenient(lenient);
}