/**
* If the argument is the <i>uri</i> parameter, then read the specified URL and parse the data
* contained in it.
*
* @param attribute The attribute that changed.
* @exception IllegalActionException If the URL cannot be read or if the data is malformed.
*/
public void attributeChanged(Attribute attribute) throws IllegalActionException {
// The superclass does some handling of the url attribute.
super.attributeChanged(attribute);
if (attribute == uri) {
try {
URL urlToRead = uri.getURL();
if (urlToRead != null) {
read(urlToRead);
}
} catch (IOException ex) {
throw new IllegalActionException(this, null, ex, "Failed to read data: " + ex.getMessage());
}
}
}
