String name = WebloggerConfig.getProperty("comment.authenticator.classname");
Class clazz = Class.forName(name);
this.authenticator = (CommentAuthenticator) clazz.newInstance();
} catch(Exception e) {
log.error(e);
this.authenticator = new DefaultCommentAuthenticator();
}
// instantiate a comment validation manager for comment spam checking
commentValidationManager = new CommentValidationManager();