@Override
public void init(ServletConfig config) throws ServletException {
super.init(config);
OntModel displayOntModel =
(OntModel) config.getServletContext().getAttribute("displayOntModel");
this.urlPatterns = new NavigationURLPatternListener();
displayOntModel.getBaseModel().register(urlPatterns);
}
/**
* When initialized, get a reference to the File Storage system. Without that, we can do nothing.
*/
@Override
public void init() throws ServletException {
super.init();
Object o = getServletContext().getAttribute(FileStorageSetup.ATTRIBUTE_NAME);
if (o instanceof FileStorage) {
fileStorage = (FileStorage) o;
} else if (o == null) {
throw new UnavailableException(
this.getClass().getSimpleName()
+ " could not initialize. Attribute '"
+ FileStorageSetup.ATTRIBUTE_NAME
+ "' was not set in the servlet context.");
} else {
throw new UnavailableException(
this.getClass().getSimpleName()
+ " could not initialize. Attribute '"
+ FileStorageSetup.ATTRIBUTE_NAME
+ "' in the servlet context contained an instance of '"
+ o.getClass().getName()
+ "' instead of '"
+ FileStorage.class.getName()
+ "'");
}
}
