/** Constructs an IPFilter that automatically loads the content. */
 @Inject
 public LocalIPFilter(@Named("hostileFilter") IPFilter hostileNetworkFilter, 
 @Named("backgroundExecutor") ScheduledExecutorService ipLoader) {
 this.hostileNetworkFilter = hostileNetworkFilter;
 this.ipLoader = ipLoader;
 
 File hostiles = new File(CommonUtils.getUserSettingsDir(), "hostiles.txt");
 shouldLoadHostiles = hostiles.exists();
 
 refreshHosts();
 }