How to access header values of request in Java Restlet?

Question

I am developing web services using Restlet Java. For this I want to protect some webservices from unauthorized clients. So I have written Filter class. In that Filter class I want to get the headers of the Request. But I am getting the following error - ``` java.lang.ClassCastException: org.restlet.engine.http.HttpRequest cannot be cast to javax.servlet.http.HttpServletRequest ``` The coding is - ``` public class MyFilter extends Filter { @Override protected int beforeHandle(Request request, Response response) { int result = STOP; HttpServletRequest httpReq = (HttpServletRequest) request; String user_token = httpReq.getHeader("auth"); if(user_token.equals("xyz")) { result = CONTINUE; } return result; } } ``` Please suggest me a way to access the header values of Request in Java Restlet?

Accepted Answer

I solved my problem using

```
Form headers = (Form) request.getAttributes().get("org.restlet.http.headers");
String user_token = headers.getFirstValue("Location");
```

I found this http://blog.yudongli.com/2009/12/get-request-header-in-restlet_13.html link useful.

How to access header values of request in Java Restlet?

Solution

Problem