Java tutorial
/** * This file is part of Location Service :: Admin. Copyright (C) 2014 Petteri * Kivimki * * Location Service :: Admin 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. * * Location Service :: Admin 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 * Location Service :: Admin. If not, see <http://www.gnu.org/licenses/>. */ package com.pkrete.locationservice.admin.controller.mvc; import com.pkrete.locationservice.admin.editor.ImageEditor; import com.pkrete.locationservice.admin.editor.LanguageEditor; import com.pkrete.locationservice.admin.editor.MapEditor; import com.pkrete.locationservice.admin.editor.OwnerEditor; import com.pkrete.locationservice.admin.editor.SubjectMatterEditor; import com.pkrete.locationservice.admin.model.illustration.Image; import com.pkrete.locationservice.admin.model.language.Language; import com.pkrete.locationservice.admin.model.illustration.Map; import com.pkrete.locationservice.admin.model.owner.Owner; import com.pkrete.locationservice.admin.model.subjectmatter.SubjectMatter; import com.pkrete.locationservice.admin.converter.ConverterService; import com.pkrete.locationservice.admin.model.location.Area; import com.pkrete.locationservice.admin.model.location.Location; import com.pkrete.locationservice.admin.service.ImagesService; import com.pkrete.locationservice.admin.service.LanguagesService; import com.pkrete.locationservice.admin.service.LocationsService; import com.pkrete.locationservice.admin.service.MapsService; import com.pkrete.locationservice.admin.service.SubjectMattersService; import com.pkrete.locationservice.admin.util.Settings; import java.util.ArrayList; import java.util.List; import org.springframework.ui.ModelMap; import javax.servlet.http.HttpServletRequest; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.beans.factory.annotation.Qualifier; import org.springframework.stereotype.Controller; import org.springframework.web.bind.WebDataBinder; import org.springframework.web.bind.annotation.InitBinder; /** * The {@link HandleLocationController HandleLocationController} class extends * abstract {@link BaseController BaseController} class. This class implements * some basic functionality that all the controllers handling Location objects * are sharing. This is an abstract base class that controllers handling * Location objects can extend. This class doesn't have any abstract methods * though. * * @author Petteri Kivimki */ @Controller public abstract class HandleLocationController extends BaseController { @Autowired @Qualifier("locationsService") protected LocationsService locationsService; @Autowired @Qualifier("imagesService") protected ImagesService imagesService; @Autowired @Qualifier("mapsService") protected MapsService mapsService; @Autowired @Qualifier("subjectMattersService") protected SubjectMattersService subjectMattersService; @Autowired @Qualifier("languagesService") protected LanguagesService languagesService; @Autowired @Qualifier("converterService") protected ConverterService converterService; @Autowired @Qualifier("imageEditor") private ImageEditor imageEditor; @Autowired @Qualifier("mapEditor") private MapEditor mapEditor; @Autowired @Qualifier("subjectMatterEditor") private SubjectMatterEditor subjectMatterEditor; @Autowired @Qualifier("languageEditor") private LanguageEditor languageEditor; @Autowired @Qualifier("ownerEditor") private OwnerEditor ownerEditor; @InitBinder protected void initBinder(WebDataBinder binder) { binder.registerCustomEditor(Image.class, imageEditor); binder.registerCustomEditor(Map.class, mapEditor); binder.registerCustomEditor(SubjectMatter.class, subjectMatterEditor); binder.registerCustomEditor(Language.class, languageEditor); binder.registerCustomEditor(Owner.class, ownerEditor); } protected void setReferenceData(HttpServletRequest request, ModelMap model) { Owner owner = getOwner(request); model.put("images", imagesService.get(owner)); model.put("maps", mapsService.get(owner)); model.put("subjects", subjectMattersService.getSubjectMatters(owner)); String path = Settings.getInstance().getImagesWebPath(getOwner(request).getCode()); model.put("imagesPath", path); } /** * Parses Area object from the Request object. * * @param request request with the necessary parameters * @return list of Area objects parsed from the request */ protected List<Area> parseAreas(HttpServletRequest request) { return parseAreas(request, null); } /** * Parses Area object from the Request object. * * @param request request with the necessary parameters * @param location Location that owns the Areas * @return list of Area objects parsed from the request */ protected List<Area> parseAreas(HttpServletRequest request, Location location) { List<Area> areas = new ArrayList<Area>(); if (request.getParameter("used_areas") != null) { if (request.getParameter("used_areas").length() > 0) { String[] arr = request.getParameter("used_areas").split("\\|"); for (int i = 0; i < arr.length; i++) { int id = this.converterService.strToInt(request.getParameter("areaId_" + arr[i])); int x1 = this.converterService.strToInt(request.getParameter("x1_" + arr[i])); int y1 = this.converterService.strToInt(request.getParameter("y1_" + arr[i])); int x2 = this.converterService.strToInt(request.getParameter("x2_" + arr[i])); int y2 = this.converterService.strToInt(request.getParameter("y2_" + arr[i])); int angle = this.converterService.strToInt(request.getParameter("angle_" + arr[i])); if (location == null) { areas.add(new Area(id, x1, y1, x2, y2, angle)); } else { areas.add(new Area(id, x1, y1, x2, y2, angle, location)); } } } } return areas; } /** * Parses SubjectMatters objects from the Request object and sets them to * the given Location. * * @param request request with the necessary parameters * @param location Location that owns the SubjectMatters */ protected void parseSubjectMatters(HttpServletRequest request, Location location) { String[] values = request.getParameterValues("subjectMatters"); List<SubjectMatter> subjects = new ArrayList<SubjectMatter>(); if (values != null) { for (int i = 0; i < values.length; i++) { subjects.add(this.subjectMattersService.getSubjectMatter(this.converterService.strToInt(values[i]), location.getOwner())); } } location.setSubjectMatters(subjects); } }