001/**
002 * Copyright (C) 2014  Universidade de Aveiro, DETI/IEETA, Bioinformatics Group - http://bioinformatics.ua.pt/
003 *
004 * This file is part of Dicoogle/dicoogle.
005 *
006 * Dicoogle/dicoogle is free software: you can redistribute it and/or modify
007 * it under the terms of the GNU General Public License as published by
008 * the Free Software Foundation, either version 3 of the License, or
009 * (at your option) any later version.
010 *
011 * Dicoogle/dicoogle is distributed in the hope that it will be useful,
012 * but WITHOUT ANY WARRANTY; without even the implied warranty of
013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
014 * GNU General Public License for more details.
015 *
016 * You should have received a copy of the GNU General Public License
017 * along with Dicoogle.  If not, see <http://www.gnu.org/licenses/>.
018 */
019package pt.ua.dicoogle.server.users;
020
021import java.util.*;
022
023/**
024 * Created by bastiao on 23/01/16.
025 */
026public class RolesStruct implements RoleManager{
027
028    private static RolesStruct instance = null ;
029
030    private Set<Role> roles = new HashSet<>();
031    private Map<String, Role> rolesMap = new HashMap<String, Role>();
032
033    public static synchronized RolesStruct getInstance() {
034        if (instance == null) {
035            instance = new RolesStruct();
036        }
037
038        return instance;
039    }
040    private RolesStruct(){
041        reset();
042    }
043
044    public void reset(){
045        roles = new HashSet<>();
046    }
047
048    @Override
049    public boolean hasRole(User user, Role r) {
050        if (user==null||r==null)
051            return false;
052        return UsersStruct.getInstance().getUser(user.getUsername()).hasRole(r);
053    }
054
055    @Override
056    public Set<Role> getRoles() {
057        return this.roles;
058    }
059
060    @Override
061    public void addRole(Role r) {
062        this.roles.add(r);
063        this.rolesMap.put(r.getName(), r);
064
065    }
066
067    @Override
068    public Role getRole(String name) {
069
070        return this.rolesMap.get(name);
071    }
072}