Java tutorial
/** * Copyright 2014 Instituto Superior Tcnico * * This file is part of FenixEdu Spaces. * * FenixEdu Spaces 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 Spaces 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 Spaces. If not, see <http://www.gnu.org/licenses/>. */ package org.fenixedu.spaces.ui; import java.util.ArrayList; import java.util.List; import java.util.stream.Collectors; import org.fenixedu.bennu.core.security.Authenticate; import org.fenixedu.bennu.spring.portal.BennuSpringController; import org.fenixedu.spaces.domain.occupation.Occupation; import org.fenixedu.spaces.domain.occupation.requests.OccupationRequest; import org.fenixedu.spaces.ui.services.OccupationService; import org.joda.time.DateTime; import org.joda.time.Interval; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RequestParam; import com.google.gson.JsonArray; import com.google.gson.JsonElement; import com.google.gson.JsonObject; import com.google.gson.JsonParser; @BennuSpringController(SpacesController.class) @RequestMapping("/spaces/occupations") public class OccupationController { private final JsonParser jsonParser = new JsonParser(); @Autowired OccupationService occupationService; private List<Interval> parseIntervals(String events) { final JsonArray jsonEvents = jsonParser.parse(events).getAsJsonArray(); List<Interval> intervals = new ArrayList<>(); for (JsonElement jsonEvent : jsonEvents) { final JsonObject event = jsonEvent.getAsJsonObject(); final Long start = Long.parseLong(event.get("start").getAsString()) * 1000L; final Long end = Long.parseLong(event.get("end").getAsString()) * 1000L; intervals.add(new Interval(new DateTime(start), new DateTime(end))); } return intervals; } @RequestMapping(value = "create", method = RequestMethod.GET) public String getCreate(Model model, @RequestParam(required = false) OccupationRequest request) { model.addAttribute("request", request); return "occupations/create"; } public String searchSpaces(Model model, @RequestParam String events, @RequestParam String config, @RequestParam(required = false) OccupationRequest request, @RequestParam(required = false) String mails) { final List<Interval> intervals = parseIntervals(events); model.addAttribute("events", events); model.addAttribute("config", config); model.addAttribute("request", request); if (mails != null) { model.addAttribute("emails", mails); } model.addAttribute("freeSpaces", occupationService.searchFreeSpaces(intervals, Authenticate.getUser())); return "occupations/searchcreate"; } @RequestMapping(value = "search-create", method = RequestMethod.POST) public String searchSpaces(Model model, @RequestParam String events, @RequestParam String config, @RequestParam(required = false) OccupationRequest request) { return searchSpaces(model, events, config, request, null); } @RequestMapping(value = "create", method = RequestMethod.POST) public String create(Model model, @RequestParam String emails, @RequestParam String subject, @RequestParam String description, @RequestParam String selectedSpaces, @RequestParam String config, @RequestParam String events, @RequestParam(required = false) OccupationRequest request) { List<String> parsedMails = new ArrayList<String>(); for (String m : emails.split(",")) { if (isValidEmailAddress(m.trim())) { parsedMails.add(m); } } emails = parsedMails.stream().collect(Collectors.joining(", ")); try { occupationService.createOccupation(emails, subject, description, selectedSpaces, config, events, request, Authenticate.getUser()); if (request != null) { return "redirect:/spaces/occupations/requests/" + request.getExternalId(); } return "redirect:/spaces/occupations/list"; } catch (Exception e) { model.addAttribute("errorMessage", e.getMessage()); return searchSpaces(model, events, config, request, emails); } } public boolean isValidEmailAddress(String email) { String ePattern = "^[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+@((\\[[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\])|(([a-zA-Z\\-0-9]+\\.)+[a-zA-Z]{2,}))$"; java.util.regex.Pattern p = java.util.regex.Pattern.compile(ePattern); java.util.regex.Matcher m = p.matcher(email); return m.matches(); } @RequestMapping("view/{occupation}") public String view(Model model, @PathVariable Occupation occupation) { if (!occupationService.canManageOccupation(occupation, Authenticate.getUser())) { return "redirect:/"; } model.addAttribute("occupation", occupation); model.addAttribute("events", occupationService.exportEvents(occupation)); model.addAttribute("config", occupationService.exportConfig(occupation)); model.addAttribute("freeSpaces", occupationService.getFreeAndSelectedSpaces(occupation, Authenticate.getUser())); return "occupations/edit"; } @RequestMapping(value = "edit", method = RequestMethod.POST) public String edit(Model model, @RequestParam Occupation occupation, @RequestParam String emails, @RequestParam String subject, @RequestParam String description, @RequestParam String selectedSpaces) { try { occupationService.editOccupation(occupation, emails, subject, description, selectedSpaces, Authenticate.getUser()); return "redirect:/spaces/occupations/list"; } catch (Exception e) { model.addAttribute("errorMessage", e.getMessage()); return view(model, occupation); } } @RequestMapping(value = "{occupation}", method = RequestMethod.DELETE) public String delete(@PathVariable Occupation occupation) { occupationService.delete(occupation, Authenticate.getUser()); return "redirect:/spaces/occupations/list"; } }