Java tutorial
/* * This file is part of MystudiesMyteaching application. * * MystudiesMyteaching application is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * MystudiesMyteaching application 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with MystudiesMyteaching application. If not, see <http://www.gnu.org/licenses/>. */ package fi.helsinki.opintoni.service; import fi.helsinki.opintoni.dto.CourseDto; import fi.helsinki.opintoni.integration.oodi.OodiClient; import fi.helsinki.opintoni.resolver.EventTypeResolver; import fi.helsinki.opintoni.service.converter.CourseConverter; import fi.helsinki.opintoni.util.DateTimeUtil; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import java.time.LocalDate; import java.util.*; import java.util.stream.Collectors; import java.util.stream.Stream; @Service public class CourseService { private final OodiClient oodiClient; private final CourseConverter courseConverter; private final EventTypeResolver eventTypeResolver; @Autowired public CourseService(OodiClient oodiClient, CourseConverter courseConverter, EventTypeResolver eventTypeResolver) { this.oodiClient = oodiClient; this.courseConverter = courseConverter; this.eventTypeResolver = eventTypeResolver; } public List<CourseDto> getTeacherCourses(String teacherNumber, Locale locale) { return oodiClient.getTeacherCourses(teacherNumber, DateTimeUtil.getSemesterStartDateString(LocalDate.now())) .stream().map(c -> courseConverter.toDto(c, locale)).collect(Collectors.toList()); } public List<CourseDto> getStudentCourses(String studentNumber, Locale locale) { return oodiClient.getEnrollments(studentNumber).stream().map(c -> courseConverter.toDto(c, locale)) .collect(Collectors.toList()); } public Stream<String> getTeacherCourseIds(String teacherNumber) { return oodiClient.getTeacherCourses(teacherNumber, DateTimeUtil.getSemesterStartDateString(LocalDate.now())) .stream().map(e -> String.valueOf(e.realisationId)); } public Stream<String> getStudentCourseIds(String studentNumber) { return oodiClient.getEnrollments(studentNumber).stream().map(e -> String.valueOf(e.realisationId)); } public Set<CourseDto> getCourses(Optional<String> studentNumber, Optional<String> teacherNumber, Locale locale) { Set<CourseDto> courseDtos = new HashSet<>(); teacherNumber.ifPresent(number -> courseDtos.addAll(getTeacherCourses(number, locale))); studentNumber.ifPresent(number -> courseDtos.addAll(getStudentCourses(number, locale))); return courseDtos; } }