private updateView(): void {
   const hasAnyAuthority = this.accountService.hasAnyAuthority(this.authorities);
   this.viewContainerRef.clear();
   if (hasAnyAuthority) {
     this.viewContainerRef.createEmbeddedView(this.templateRef);
   }
 }

 @Input()
 set jhiHasAnyAuthority(value: string | string[]) {
   this.authorities = typeof value === 'string' ? [value] : value;
   this.updateView();
   // Get notified each time authentication state changes.
   this.accountService.getAuthenticationState().subscribe(identity => this.updateView());
 }

 data => {
     this.accountService.identity(true).then(account => {
         this.trackerService.sendActivity();
         resolve(data);
     });
     return cb();
 },

this.authServerProvider.logout().subscribe(null, null, () => this.accountService.authenticate(null));

 data => {
   this.accountService.identity(true).then(account => {
     resolve(data);
   });
   return cb();
 },

 logout() {
     this.authServerProvider.logout().subscribe();
     this.accountService.authenticate(null);
 }