* Copyright © 2002 Instituto Superior Técnico

*

* This file is part of FenixEdu Academic.

*

* FenixEdu Academic is free software: you can redistribute it and/or modify

* it under the terms of the GNU Lesser General Public License as published by

* the Free Software Foundation, either version 3 of the License, or

* (at your option) any later version.

*

* FenixEdu Academic is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

* GNU Lesser General Public License for more details.

*

* You should have received a copy of the GNU Lesser General Public License

* along with FenixEdu Academic.  If not, see <http://www.gnu.org/licenses/>.

*/

    private static final Logger logger = LoggerFactory.getLogger(Registration.class);

    static private final List<DegreeType> DEGREE_TYPES_TO_ENROL_BY_STUDENT = Arrays.asList(new DegreeType[] {

            DegreeType.BOLONHA_DEGREE, DegreeType.BOLONHA_INTEGRATED_MASTER_DEGREE, DegreeType.BOLONHA_MASTER_DEGREE,

            DegreeType.BOLONHA_ADVANCED_SPECIALIZATION_DIPLOMA });

    static final public Comparator<Registration> NUMBER_COMPARATOR = new Comparator<Registration>() {

        @Override

        public int compare(Registration o1, Registration o2) {

            return o1.getNumber().compareTo(o2.getNumber());

        }

    };

    static final public Comparator<Registration> COMPARATOR_BY_START_DATE = new Comparator<Registration>() {

        @Override

        public int compare(Registration o1, Registration o2) {

            final int comparationResult = o1.getStartDate().compareTo(o2.getStartDate());

            return comparationResult == 0 ? o1.getExternalId().compareTo(o2.getExternalId()) : comparationResult;

        }

    };

    static public final ComparatorChain COMPARATOR_BY_NUMBER_AND_ID = new ComparatorChain();

    static {

        COMPARATOR_BY_NUMBER_AND_ID.addComparator(NUMBER_COMPARATOR);

        COMPARATOR_BY_NUMBER_AND_ID.addComparator(DomainObjectUtil.COMPARATOR_BY_ID);

    }

    private Registration() {

        super();

        setRootDomainObject(Bennu.getInstance());

        setRegistrationProtocol(RegistrationProtocol.getDefault());

    }

    private Registration(final Person person, final DateTime start, final Integer registrationNumber, final Degree degree) {