Java EE 8 Design Patterns and Best Practices

Implementing the AuthenticationResource class

AuthenticationResource is a JAX-RS resource, which makes it possible to log in and validates the authentication of an application. In the following code, we have its implementation:

import javax.inject.Inject;import javax.ws.rs.*;import javax.ws.rs.core.Response;import java.util.Date;import java.util.Optional;@Path("auth")public class AuthenticationResource {    @Inject    private AuthSession authSession;    @POST    @Consumes("application/x-www-form-urlencoded")    public Response login(@FormParam("login") String login, @FormParam("password") String password ) {        //If user already logged, then get it token        Optional<String> key = authSession.getToken(login, password);        if ( key.isPresent() ){           return Response. ...