/**
* 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/>.
*/
/*
* Created on 27/Ago/2003
*
*/
package org.fenixedu.academic.service.services.student;
import static org.fenixedu.academic.predicate.AccessControl.check;
import java.util.Collection;
import org.apache.struts.util.MessageResources;
import org.fenixedu.academic.domain.Attends;
import org.fenixedu.academic.domain.ExecutionCourse;
import org.fenixedu.academic.domain.Grouping;
import org.fenixedu.academic.domain.StudentGroup;
import org.fenixedu.academic.domain.student.Registration;
import org.fenixedu.academic.predicate.RolePredicates;
import org.fenixedu.academic.service.ServiceMonitoring;
import org.fenixedu.academic.service.services.exceptions.FenixServiceException;
import org.fenixedu.academic.service.services.exceptions.InvalidArgumentsServiceException;
import org.fenixedu.academic.service.services.exceptions.InvalidSituationServiceException;
import org.fenixedu.academic.service.services.exceptions.NotAuthorizedException;
import org.fenixedu.academic.service.strategy.groupEnrolment.strategys.GroupEnrolmentStrategyFactory;
import org.fenixedu.academic.service.strategy.groupEnrolment.strategys.IGroupEnrolmentStrategy;
import org.fenixedu.academic.service.strategy.groupEnrolment.strategys.IGroupEnrolmentStrategyFactory;
import org.fenixedu.academic.util.Bundle;
import pt.ist.fenixframework.Atomic;
import pt.ist.fenixframework.FenixFramework;
/**
* @author asnr and scpo
*
*/
public class GroupStudentEnrolment {
private static final MessageResources messages = MessageResources.getMessageResources(Bundle.GLOBAL);
@Atomic
public static Boolean run(String studentGroupCode, String username) throws FenixServiceException {
check(RolePredicates.STUDENT_PREDICATE);
ServiceMonitoring.logService(GroupStudentEnrolment.class, studentGroupCode, username);
final StudentGroup studentGroup = FenixFramework.getDomainObject(studentGroupCode);
if (studentGroup == null) {
throw new InvalidArgumentsServiceException();
}
final Registration registration = Registration.readByUsername(username);
if (registration == null) {
throw new InvalidArgumentsServiceException();
}
final Grouping grouping = studentGroup.getGrouping();
final Attends studentAttend = grouping.getStudentAttend(registration);
if (studentAttend == null) {
throw new NotAuthorizedException();
}
if (studentGroup.getAttendsSet().contains(studentAttend)) {
throw new InvalidSituationServiceException();
}
final IGroupEnrolmentStrategyFactory enrolmentGroupPolicyStrategyFactory = GroupEnrolmentStrategyFactory.getInstance();
final IGroupEnrolmentStrategy strategy = enrolmentGroupPolicyStrategyFactory.getGroupEnrolmentStrategyInstance(grouping);
boolean result = strategy.checkPossibleToEnrolInExistingGroup(grouping, studentGroup);
if (!result) {
throw new InvalidArgumentsServiceException();
}
checkIfStudentIsNotEnrolledInOtherGroups(grouping.getStudentGroupsSet(), studentGroup, studentAttend);
studentGroup.addAttends(studentAttend);
informStudents(studentGroup, registration, grouping);
return Boolean.TRUE;
}
private static void informStudents(final StudentGroup studentGroup, final Registration registration, final Grouping grouping) {
final StringBuilder executionCourseNames = new StringBuilder();
for (final ExecutionCourse executionCourse : grouping.getExecutionCourses()) {
if (executionCourseNames.length() > 0) {
executionCourseNames.append(", ");
}
executionCourseNames.append(executionCourse.getNome());
}
}
private static void checkIfStudentIsNotEnrolledInOtherGroups(final Collection<StudentGroup> studentGroups,
final StudentGroup studentGroupEnrolled, final Attends studentAttend) throws InvalidSituationServiceException {
for (final StudentGroup studentGroup : studentGroups) {
if (studentGroup != studentGroupEnrolled && studentGroup.getAttendsSet().contains(studentAttend)) {
throw new InvalidSituationServiceException();
}
}
}
}