Java tutorial
/** * 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.presentationTier.Action.academicAdministration.student.equivalencies; import java.util.ArrayList; import java.util.Collections; import java.util.List; import java.util.SortedSet; import java.util.TreeSet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import net.sourceforge.fenixedu.applicationTier.Servico.exceptions.FenixServiceException; import net.sourceforge.fenixedu.applicationTier.Servico.manager.CreateCurricularCourseEquivalency; import net.sourceforge.fenixedu.applicationTier.Servico.manager.DeleteCurricularCourseEquivalency; import net.sourceforge.fenixedu.applicationTier.Servico.manager.ReadCurricularCoursesByDegreeCurricularPlan; import net.sourceforge.fenixedu.applicationTier.Servico.manager.ReadDegreeCurricularPlansByDegree; import net.sourceforge.fenixedu.dataTransferObject.InfoCurricularCourse; import net.sourceforge.fenixedu.dataTransferObject.InfoDegreeCurricularPlan; import net.sourceforge.fenixedu.domain.CurricularCourseEquivalence; import net.sourceforge.fenixedu.domain.Degree; import net.sourceforge.fenixedu.domain.DegreeCurricularPlan; import net.sourceforge.fenixedu.domain.accessControl.AcademicAuthorizationGroup; import net.sourceforge.fenixedu.domain.accessControl.academicAdministration.AcademicOperationType; import net.sourceforge.fenixedu.domain.degree.DegreeType; import net.sourceforge.fenixedu.domain.exceptions.DomainException; import net.sourceforge.fenixedu.injectionCode.AccessControl; import net.sourceforge.fenixedu.presentationTier.Action.academicAdministration.AcademicAdministrationApplication.AcademicAdminEquivalencesApp; import net.sourceforge.fenixedu.presentationTier.Action.base.FenixDispatchAction; import net.sourceforge.fenixedu.presentationTier.config.FenixErrorExceptionHandler; import org.apache.commons.beanutils.BeanComparator; import org.apache.commons.collections.comparators.ComparatorChain; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionForward; import org.apache.struts.action.ActionMapping; import org.apache.struts.action.DynaActionForm; import org.fenixedu.bennu.core.domain.User; import org.fenixedu.bennu.core.security.Authenticate; import org.fenixedu.bennu.portal.EntryPoint; import org.fenixedu.bennu.portal.StrutsFunctionality; import pt.ist.fenixWebFramework.struts.annotations.ExceptionHandling; import pt.ist.fenixWebFramework.struts.annotations.Exceptions; import pt.ist.fenixWebFramework.struts.annotations.Forward; import pt.ist.fenixWebFramework.struts.annotations.Forwards; import pt.ist.fenixWebFramework.struts.annotations.Mapping; import pt.ist.fenixframework.FenixFramework; @StrutsFunctionality(app = AcademicAdminEquivalencesApp.class, path = "curricular-course-equivalences", titleKey = "label.studentDismissal.equivalences", accessGroup = "academic(MANAGE_EQUIVALENCES)") @Mapping(module = "academicAdministration", path = "/curricularCourseEquivalencies", input = "/curricularCourseEquivalencies.do?method=prepare&page=0", formBean = "curricularCourseEquivalenciesForm") @Forwards({ @Forward(name = "showEquivalencies", path = "/academicAdministration/equivalences/curricularCourseEquivalencies.jsp"), @Forward(name = "showCreateEquivalencyForm", path = "/academicAdministration/equivalences/createCurricularCourseEquivalencies.jsp") }) @Exceptions(value = { @ExceptionHandling(type = DomainException.class, key = "error.exists.curricular.course.equivalency", handler = FenixErrorExceptionHandler.class, scope = "request") }) public class CurricularCourseEquivalenciesDA extends FenixDispatchAction { @EntryPoint public ActionForward prepare(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception { final User userView = Authenticate.getUser(); final DynaActionForm actionForm = (DynaActionForm) form; setInfoDegreesToManage(request, userView); final String degreeIDString = (String) actionForm.get("degreeID"); if (isValidObjectID(degreeIDString)) { setInfoDegreeCurricularPlans(request, userView, degreeIDString, "infoDegreeCurricularPlans"); final String degreeCurricularPlanIDString = (String) actionForm.get("degreeCurricularPlanID"); if (isValidObjectID(degreeCurricularPlanIDString)) { DegreeCurricularPlan degreeCurricularPlan = FenixFramework .getDomainObject(degreeCurricularPlanIDString); List<CurricularCourseEquivalence> equivalences = new ArrayList<CurricularCourseEquivalence>( degreeCurricularPlan.getCurricularCourseEquivalencesSet()); sortInfoCurricularCourseEquivalences(equivalences); request.setAttribute("curricularCourseEquivalences", equivalences); } } return mapping.findForward("showEquivalencies"); } public ActionForward prepareCreate(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception { final User userView = Authenticate.getUser(); final DynaActionForm actionForm = (DynaActionForm) form; final String degreeCurricularPlanIDString = (String) actionForm.get("degreeCurricularPlanID"); if (isValidObjectID(degreeCurricularPlanIDString)) { setInfoDegreesToAdd(request, userView); final String degreeIDString = (String) actionForm.get("degreeID"); if (isValidObjectID(degreeIDString)) { setInfoDegreeCurricularPlans(request, userView, degreeIDString, "infoDegreeCurricularPlans"); } setInfoCurricularCourses(request, userView, degreeCurricularPlanIDString, "infoCurricularCourses"); final String oldDegreeIDString = (String) actionForm.get("oldDegreeID"); if (isValidObjectID(oldDegreeIDString)) { setInfoDegreeCurricularPlans(request, userView, oldDegreeIDString, "oldInfoDegreeCurricularPlans"); } final String oldDegreeCurricularPlanIDString = (String) actionForm.get("oldDegreeCurricularPlanID"); if (isValidObjectID(oldDegreeCurricularPlanIDString)) { setInfoCurricularCourses(request, userView, oldDegreeCurricularPlanIDString, "oldInfoCurricularCourses"); } return mapping.findForward("showCreateEquivalencyForm"); } else { return prepare(mapping, form, request, response); } } public ActionForward create(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception { final DynaActionForm actionForm = (DynaActionForm) form; final String degreeCurricularPlanIDString = (String) actionForm.get("degreeCurricularPlanID"); final String curricularCourseIDString = (String) actionForm.get("curricularCourseID"); final String oldCurricularCourseIDString = (String) actionForm.get("oldCurricularCourseID"); if (isValidObjectID(degreeCurricularPlanIDString) && isValidObjectID(curricularCourseIDString) && isValidObjectID(oldCurricularCourseIDString)) { try { CreateCurricularCourseEquivalency.run(degreeCurricularPlanIDString, curricularCourseIDString, oldCurricularCourseIDString); } catch (DomainException e) { addActionMessage(request, e.getMessage()); } } return prepare(mapping, form, request, response); } public ActionForward delete(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception { final DynaActionForm actionForm = (DynaActionForm) form; final String curricularCourseEquivalencyIDString = (String) actionForm.get("curricularCourseEquivalencyID"); if (isValidObjectID(curricularCourseEquivalencyIDString)) { try { DeleteCurricularCourseEquivalency.run(curricularCourseEquivalencyIDString); } catch (DomainException e) { addActionMessage(request, e.getMessage()); } } return prepare(mapping, form, request, response); } private void setInfoDegreesToManage(final HttpServletRequest request, final User userView) throws FenixServiceException { final SortedSet<Degree> degrees = new TreeSet<Degree>(Degree.COMPARATOR_BY_DEGREE_TYPE_AND_NAME_AND_ID); degrees.addAll(AcademicAuthorizationGroup.getDegreesForOperation(AccessControl.getPerson(), AcademicOperationType.MANAGE_EQUIVALENCES)); request.setAttribute("infoDegrees", degrees); } private void setInfoDegreesToAdd(final HttpServletRequest request, final User userView) throws FenixServiceException { final SortedSet<Degree> degrees = new TreeSet<Degree>(Degree.COMPARATOR_BY_DEGREE_TYPE_AND_NAME_AND_ID); degrees.addAll(Degree.readAllByDegreeType(DegreeType.DEGREE)); degrees.addAll(Degree.readAllByDegreeType(DegreeType.BOLONHA_DEGREE)); degrees.addAll(Degree.readAllByDegreeType(DegreeType.BOLONHA_INTEGRATED_MASTER_DEGREE)); degrees.addAll(Degree.readAllByDegreeType(DegreeType.BOLONHA_MASTER_DEGREE)); degrees.addAll(Degree.readAllByDegreeType(DegreeType.BOLONHA_ADVANCED_FORMATION_DIPLOMA)); request.setAttribute("infoDegrees", degrees); } private void setInfoDegreeCurricularPlans(final HttpServletRequest request, final User userView, final String degreeID, final String attributeName) throws FenixServiceException { final List<InfoDegreeCurricularPlan> infoDegreeCurricularPlans = ReadDegreeCurricularPlansByDegree .run(degreeID); sortInfoDegreeCurricularPlans(infoDegreeCurricularPlans); request.setAttribute(attributeName, infoDegreeCurricularPlans); } private void setInfoCurricularCourses(final HttpServletRequest request, final User userView, final String degreeCurricularPlanID, final String attribute) throws FenixServiceException { final List<InfoCurricularCourse> infoCurricularCourses = ReadCurricularCoursesByDegreeCurricularPlan .run(degreeCurricularPlanID); sortInfoCurricularCourses(infoCurricularCourses); request.setAttribute(attribute, infoCurricularCourses); } private boolean isValidObjectID(final String objectIDString) { return objectIDString != null && objectIDString.length() > 0; } private void sortInfoDegreeCurricularPlans(final List<InfoDegreeCurricularPlan> infoDegreeCurricularPlans) { Collections.sort(infoDegreeCurricularPlans, new BeanComparator("name")); } private void sortInfoCurricularCourseEquivalences(final List<CurricularCourseEquivalence> equivalences) { final ComparatorChain chain = new ComparatorChain(); chain.addComparator(CurricularCourseEquivalence.COMPARATOR_BY_EQUIVALENT_COURSE_NAME); chain.addComparator(CurricularCourseEquivalence.COMPARATOR_BY_EQUIVALENT_COURSE_CODE); Collections.sort(equivalences, chain); } private void sortInfoCurricularCourses(final List<InfoCurricularCourse> infoCurricularCourses) { Collections.sort(infoCurricularCourses, InfoCurricularCourse.COMPARATOR_BY_NAME_AND_ID); } }