302.3. Authentication

import javax.security.auth.Subject;
import org.apache.camel.*;
import org.apache.commons.codec.binary.Base64;
import org.springframework.security.authentication.*;


public class MyAuthService implements Processor {
    public void process(Exchange exchange) throws Exception {
        // get the username and password from the HTTP header
        // http://en.wikipedia.org/wiki/Basic_access_authentication
        String userpass = new String(Base64.decodeBase64(exchange.getIn().getHeader("Authorization", String.class)));
        String[] tokens = userpass.split(":");

        // create an Authentication object
        UsernamePasswordAuthenticationToken authToken = new UsernamePasswordAuthenticationToken(tokens[0], tokens[1]);

        // wrap it in a Subject
        Subject subject = new Subject();
        subject.getPrincipals().add(authToken);

        // place the Subject in the In message
        exchange.getIn().setHeader(Exchange.AUTHENTICATION, subject);

        // you could also do this if useThreadSecurityContext is set to true
        // SecurityContextHolder.getContext().setAuthentication(authToken);
    }
}