Authenticator

package com.groww.resources.auth;

import com.groww.db.model.Users;
import io.dropwizard.auth.AuthenticationException;
import io.dropwizard.auth.Authenticator;
import io.dropwizard.auth.basic.BasicCredentials;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.mindrot.jbcrypt.BCrypt;

import java.util.Optional;

public class GrowwAuthenticator implements Authenticator<BasicCredentials, Users> {
    private final SessionFactory sessionFactory;

    public GrowwAuthenticator(SessionFactory sessionFactory) {
        this.sessionFactory = sessionFactory;
    }

    @Override
    public Optional<Users> authenticate(BasicCredentials credentials) throws AuthenticationException {
        Session session = sessionFactory.getCurrentSession(); // Crash here

        Query query = session.createQuery("SELECT a FROM Users a WHERE a.email = :login");
        query.setParameter("login", credentials.getUsername());
        Users user = (Users) query.uniqueResult();
        if (user == null || !BCrypt.checkpw(credentials.getPassword(), user.getHashedPassword())) {
            throw new RuntimeException("Credentials invalid.");
        }
        System.out.println("User: " + user);
        return Optional.of(user);
    }
}