java - Using dynamic Wicket-Resources the right way -

i'm trying create simple application based on wicket. want place panel on page indicates if user logged in. sadly, unable find working example of problem: want label display username if logged on , message, if no user logged on. guess i'm missing something.

here comes code:

panel:

public class header extends panel {  imodel<stringresourcemodel> usernamemodel = new loadabledetachablemodel<stringresourcemodel>() {      @override     protected stringresourcemodel load() {         final user user = mysession.get().getauthenticateduser();         if (user==null){             return new stringresourcemodel("username.nouser", header.this , null);         }else{             return new stringresourcemodel("username.user", header.this, model.of(user));         }     } };  public header(final string id) {     super(id); }  @override protected void oninitialize() {     super.oninitialize();     add(new label("username", usernamemodel));  }  } 

properties:

username.nouser=you not logged in username.user=welcome, ${name} 

markup:

<wicket:panel>     <wicket:label class="username" wicket:id="username" /> </wicket:panel> 

the rendered text is

stringresourcemodel[key:username.nouser,default:null,params:[]]

the behaviour makes sense. how can fix desired text rendered?

you should return string #load() method:

imodel<string> usernamemodel = new loadabledetachablemodel<string>() {      @override     protected string load() {         final user user = mysession.get().getauthenticateduser();         if (user==null){             return new stringresourcemodel("username.nouser", header.this , null).getobject();         }else{             return new stringresourcemodel("username.user", header.this, model.of(user)).getobject();         }     } }; 

note call stringresourcemodel#getobject().