public abstract class BaseAction implements Action {
private static Logger jgLog = LoggerFactory.getLogger(BaseAction.class);
public BaseAction() {}
public ActionURL handleRequest(HttpServletRequest request, HttpServletResponse response)
throws ActionException {
// Common request code here (e.g., logging, etc.)
return execute(request, response);
}
protected abstract ActionURL execute(HttpServletRequest request, HttpServletResponse response)
throws ActionException;
}
/**
* Application filter that manages the web session.
*
* @author Curtis
* @since 2011
*/
public class SessionFilter extends HttpServletFilter {
private static Logger jgLog = LoggerFactory.getLogger(SessionFilter.class);
public void doFilter(HttpServletRequest request, HttpServletResponse response, FilterChain chain)
throws IOException, ServletException {
if (initSession(request, response)) {
chain.doFilter(request, response);
cleanUpSession(request);
} else {
displayNoCookiePage(request, response);
}
}
private boolean initSession(HttpServletRequest request, HttpServletResponse response)
throws ServletException {
try {
WebSessionService.getInstance().getSession(request, response);
} catch (SessionException e) {
jgLog.error("ERROR INITIALIZING SESSION: " + e.getMessage());
throw new ServletException(e.getMessage());
} catch (CookieException e) {
return false;
}
return true;
}
private void cleanUpSession(HttpServletRequest request) {
try {
WebSessionService.getInstance().saveSession(request);
} catch (SessionException e) {
jgLog.error("ERROR SETTING SESSION ATTRIBUTES");
}
}
private void displayNoCookiePage(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
filterConfig
.getServletContext()
.getRequestDispatcher(ActionURL.NO_COOKIE.getURL())
.forward(request, response);
}
}