net.sourceforge.fenixedu.domain.teacher.DegreeTeachingService.java Source code

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Here is the source code for net.sourceforge.fenixedu.domain.teacher.DegreeTeachingService.java

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/**
 * Copyright  2002 Instituto Superior Tcnico
 *
 * This file is part of FenixEdu Core.
 *
 * FenixEdu Core 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 Core 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 Core.  If not, see <http://www.gnu.org/licenses/>.
 */
package net.sourceforge.fenixedu.domain.teacher;

import java.math.BigDecimal;
import java.util.Comparator;

import net.sourceforge.fenixedu.domain.ExecutionCourse;
import net.sourceforge.fenixedu.domain.ExecutionSemester;
import net.sourceforge.fenixedu.domain.Lesson;
import net.sourceforge.fenixedu.domain.Professorship;
import net.sourceforge.fenixedu.domain.Shift;
import net.sourceforge.fenixedu.domain.exceptions.DomainException;
import net.sourceforge.fenixedu.domain.person.RoleType;
import net.sourceforge.fenixedu.util.Bundle;
import org.fenixedu.bennu.core.i18n.BundleUtil;

import org.joda.time.DateTime;
import org.joda.time.DateTimeConstants;
import org.joda.time.Interval;
import org.joda.time.LocalTime;
import org.joda.time.Minutes;

public class DegreeTeachingService extends DegreeTeachingService_Base {

    public static final Comparator<DegreeTeachingService> DEGREE_TEACHING_SERVICE_COMPARATOR_BY_SHIFT = new Comparator<DegreeTeachingService>() {
        @Override
        public int compare(DegreeTeachingService degreeTeachingService1,
                DegreeTeachingService degreeTeachingService2) {
            return Shift.SHIFT_COMPARATOR_BY_TYPE_AND_ORDERED_LESSONS.compare(degreeTeachingService1.getShift(),
                    degreeTeachingService2.getShift());
        }
    };

    public DegreeTeachingService(TeacherService teacherService, Professorship professorship, Shift shift,
            Double percentage, RoleType roleType) {
        super();
        if (teacherService == null || professorship == null || shift == null || percentage == null) {
            throw new DomainException("arguments can't be null");
        }
        if (percentage > 100 || percentage < 0) {
            throw new DomainException("message.invalid.professorship.percentage");
        }
        setTeacherService(teacherService);
        getTeacherService().getExecutionPeriod().checkValidCreditsPeriod(roleType);
        setProfessorship(professorship);
        setShift(shift);

        Double availablePercentage = getShift().getAvailableShiftPercentage(getProfessorship());

        if (percentage > availablePercentage) {
            throw new DomainException("message.exceeded.professorship.percentage");
        }

        setPercentage(percentage);
    }

    @Override
    public void delete() {
        new TeacherServiceLog(getTeacherService(),
                BundleUtil.getString(Bundle.TEACHER_CREDITS, "label.teacher.schedule.delete",
                        getTeacherService().getTeacher().getPerson().getNickname(),
                        getShift().getPresentationName(), getPercentage().toString()));
        setTeacherService(null);
        setShift(null);
        setProfessorship(null);
        super.delete();
    }

    public void delete(RoleType roleType) {
        getTeacherService().getExecutionPeriod().checkValidCreditsPeriod(roleType);
        delete();
    }

    public void updatePercentage(Double percentage, RoleType roleType) {
        getTeacherService().getExecutionPeriod().checkValidCreditsPeriod(roleType);
        if (percentage == null || percentage > 100 || percentage < 0) {
            throw new DomainException("message.invalid.professorship.percentage");
        }
        if (percentage == 0) {
            delete(roleType);
        } else {
            Double availablePercentage = getShift().getAvailableShiftPercentage(getProfessorship());
            if (percentage > availablePercentage) {
                throw new DomainException("message.exceeded.professorship.percentage");
            }
            setPercentage(percentage);
        }
    }

    @Deprecated
    public double getHours() {
        double totalHours = 0;
        final ExecutionCourse executionCourse = getProfessorship().getExecutionCourse();
        final ExecutionSemester executionSemester = executionCourse.getExecutionPeriod();
        if (getProfessorship().getTeacher().isTeacherProfessorCategory(executionSemester)) {
            double hoursAfter20PM = getShift().getHoursOnSaturdaysOrNightHours(20);
            double hoursBefore20PM = getShift().getUnitHours().doubleValue() - hoursAfter20PM;
            totalHours += hoursBefore20PM * (getPercentage().doubleValue() / 100);
            totalHours += (hoursAfter20PM * (getPercentage().doubleValue() / 100)) * 1.5;
        } else {
            double hours = getShift().getUnitHours().doubleValue();
            totalHours += (hours * (getPercentage().doubleValue() / 100));
        }
        return totalHours;
    }

    public double getEfectiveLoad() {
        double afterHeightFactor = getProfessorship().getTeacher()
                .isTeacherProfessorCategory(getProfessorship().getExecutionCourse().getExecutionPeriod()) ? 1.5 : 1;

        double weeklyHoursAfter20 = getTotalHoursAfter20AndSaturdays() / 14;
        double weeklyHoursBefore20 = (getShift().getCourseLoadWeeklyAverage().doubleValue() - weeklyHoursAfter20);

        BigDecimal percentage = new BigDecimal(getPercentage() / 100).setScale(4, BigDecimal.ROUND_HALF_UP);
        return (new BigDecimal((weeklyHoursBefore20 + (weeklyHoursAfter20 * afterHeightFactor)))
                .multiply(percentage)).setScale(2, BigDecimal.ROUND_HALF_UP).doubleValue();
    }

    public double getTotalHoursAfter20AndSaturdays() {
        int minutesAfter20AndSaturday = 0;
        for (Lesson lesson : getShift().getAssociatedLessonsSet()) {
            for (Interval lessonInterval : lesson.getAllLessonIntervals()) {
                if (lessonInterval.getStart().getDayOfWeek() == DateTimeConstants.SATURDAY) {
                    minutesAfter20AndSaturday += Minutes
                            .minutesBetween(lessonInterval.getStart(), lessonInterval.getEnd()).getMinutes();
                } else {
                    DateTime dateTimeAfter20 = lessonInterval.getStart().toLocalDate()
                            .toDateTime(new LocalTime(20, 0, 0));
                    if (dateTimeAfter20.isBefore(lessonInterval.getEnd())) {
                        if (!dateTimeAfter20.isAfter(lessonInterval.getStart())) {
                            minutesAfter20AndSaturday += Minutes
                                    .minutesBetween(lessonInterval.getStart(), lessonInterval.getEnd())
                                    .getMinutes();
                        } else {
                            minutesAfter20AndSaturday += Minutes
                                    .minutesBetween(dateTimeAfter20, lessonInterval.getEnd()).getMinutes();
                        }
                    }

                }
            }
        }
        return (double) minutesAfter20AndSaturday / DateTimeConstants.MINUTES_PER_HOUR;
    }

    public double calculateCredits() {
        return getEfectiveLoad() * getProfessorship().getExecutionCourse().getUnitCreditValue().doubleValue();
    }

}