source: src/main/java/com/example/fooddeliverysystem/model/userssecurity/UserPrincipal.java

package com.example.fooddeliverysystem.model.userssecurity;

import com.example.fooddeliverysystem.model.User;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.userdetails.UserDetails;

import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

public class UserPrincipal implements UserDetails {

    private final User user;

    public UserPrincipal(User user) {
        this.user = user;
    }

    @Override
    public Collection<? extends GrantedAuthority> getAuthorities() {
        List<GrantedAuthority> authorityList = new ArrayList<>();
        authorityList.add(new SimpleGrantedAuthority("ROLE_" + this.user.getUserRole().name()));
        return authorityList;
    }

    @Override
    public String getPassword() {
        return this.user.getPassword();
    }

    @Override
    public String getUsername() {
        return this.user.getUsername();
    }

    @Override
    public boolean isAccountNonExpired() {
        return true;
    }

    @Override
    public boolean isAccountNonLocked() {
        return true;
    }

    @Override
    public boolean isCredentialsNonExpired() {
        return true;
    }

    @Override
    public boolean isEnabled() {
        return true;
    }
}