/**
* Initializes this object loading the initialization parameters. Does nothing if this method has
* already been called, even if the previous call threw any exception.
*
* @throws Exception If any required parameter is undefined.
*/
public void init(ServletConfig sc, Log log) throws Exception {
if (!initCalled) {
initCalled = true;
// Read in the required properties:
for (Prop prop : Prop.values()) {
String value = sc.getInitParameter(prop.getName());
if (value != null && value.trim().length() > 0) {
prop.setValue(value);
} else if (prop.getValue() == null) {
throw new Exception("Required init parameter not defined: " + prop.getName());
}
}
if (log != null && log.isDebugEnabled()) {
for (Prop prop : Prop.values()) {
log.debug(prop.getName() + " = " + prop.getValue());
}
}
}
}
