juick-server/src/main/java/com/juick/service/security/JuickUserDetailsService.java


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package com.juick.service.security;

import com.juick.server.security.entities.JuickUser;
import com.juick.service.UserService;
import org.apache.commons.lang3.StringUtils;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.util.Assert;

/**
 * Created by aalexeev on 11/28/16.
 */
public class JuickUserDetailsService implements UserDetailsService {
    private final UserService userService;

    public JuickUserDetailsService(final UserService userService) {
        Assert.notNull(userService);
        this.userService = userService;
    }

    @Override
    public UserDetails loadUserByUsername(final String username) throws UsernameNotFoundException {
        if (StringUtils.isBlank(username))
            throw new UsernameNotFoundException("Invalid user name " + username);

        com.juick.User user = userService.getFullyUserByName(username);

        if (user != null)
            return new JuickUser(user);

        throw new UsernameNotFoundException("The username " + username + " is not found");
    }
}