Java tutorial
/*Copyright (C) 2014 JD Software, Inc. This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program 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 Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ package com.jd.survey.web.settings; import java.io.UnsupportedEncodingException; import java.security.Principal; import java.util.SortedSet; import javax.servlet.http.HttpServletRequest; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.security.access.annotation.Secured; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.validation.BindingResult; import org.springframework.web.bind.annotation.ExceptionHandler; 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 org.springframework.web.util.UriUtils; import org.springframework.web.util.WebUtils; import com.jd.survey.domain.security.User; import com.jd.survey.domain.settings.Question; import com.jd.survey.domain.settings.QuestionColumnLabel; import com.jd.survey.service.security.SecurityService; import com.jd.survey.service.security.UserService; import com.jd.survey.service.settings.SurveySettingsService; @RequestMapping("/settings/questionCols") @Controller public class QuestionColumnLabelController { private static final Log log = LogFactory.getLog(QuestionColumnLabelController.class); private static final int EMPTY_OPTIONS_COUNT = 10; @Autowired private SurveySettingsService surveySettingsService; @Autowired private UserService userService; @Autowired private SecurityService securityService; @Secured({ "ROLE_ADMIN", "ROLE_SURVEY_ADMIN" }) @RequestMapping(value = "/{id}", params = "form", produces = "text/html") public String updateForm(@PathVariable("id") Long questionId, Principal principal, HttpServletRequest httpServletRequest, Model uiModel) { log.info("updateForm(): questionId=" + questionId); try { String login = principal.getName(); User user = userService.user_findByLogin(login); Question question = surveySettingsService.question_findById(questionId); //Check if the user is authorized if (!securityService.userIsAuthorizedToManageSurvey(question.getPage().getSurveyDefinition().getId(), user) && !securityService.userBelongsToDepartment( question.getPage().getSurveyDefinition().getDepartment().getId(), user)) { log.warn("Unauthorized access to url path " + httpServletRequest.getPathInfo() + " attempted by user login:" + principal.getName() + "from IP:" + httpServletRequest.getLocalAddr()); return "accessDenied"; } SortedSet<QuestionColumnLabel> ColumnLabels = question.getColumnLabels(); log.info("initial set size" + ColumnLabels.size()); for (int i = 1; i <= EMPTY_OPTIONS_COUNT; i++) { log.info("adding to set" + i); ColumnLabels .add(new QuestionColumnLabel(question, (short) (question.getColumnLabels().size() + i))); } question.setColumnLabels(ColumnLabels); uiModel.addAttribute("question", question); return "settings/questionCols/update"; } catch (Exception e) { log.error(e.getMessage(), e); throw (new RuntimeException(e)); } } @Secured({ "ROLE_ADMIN", "ROLE_SURVEY_ADMIN" }) @RequestMapping(method = RequestMethod.POST, produces = "text/html") public String createPost(Question question, BindingResult bindingResult, @RequestParam(value = "_proceed", required = false) String proceed, Principal principal, Model uiModel, HttpServletRequest httpServletRequest) { log.info("create(): handles " + RequestMethod.POST.toString()); try { String login = principal.getName(); User user = userService.user_findByLogin(login); //Check if the user is authorized if (!securityService.userIsAuthorizedToManageSurvey(surveySettingsService .question_findById(question.getId()).getPage().getSurveyDefinition().getId(), user) && !securityService .userBelongsToDepartment(surveySettingsService.question_findById(question.getId()) .getPage().getSurveyDefinition().getDepartment().getId(), user)) { log.warn("Unauthorized access to url path " + httpServletRequest.getPathInfo() + " attempted by user login:" + principal.getName() + "from IP:" + httpServletRequest.getLocalAddr()); return "accessDenied"; } if (proceed != null) { boolean isValid = true; for (int i = 0; i < question.getColumnLabelsList().size(); i++) { if (question.getColumnLabelsList().get(i).getLabel() != null && question.getColumnLabelsList().get(i).getLabel().trim().length() > 0) { if (question.getColumnLabelsList().get(i).getLabel().trim().length() == 0 || question.getColumnLabelsList().get(i).getLabel().trim().length() > 75) { bindingResult.rejectValue("columnLabelsList[" + i + "].label", "invalidEntry"); isValid = false; } } else { //User is trying to save an empty MC form if (i == 0) { bindingResult.rejectValue("columnLabelsList[" + i + "].label", "invalidEntry"); isValid = false; } } } if (!isValid) { return "settings/questionCols/update"; } else { question = surveySettingsService.question_updateColumnLabels(question); return "settings/questionCols/saved"; } } else { question = surveySettingsService.question_updateColumnLabels(question); return "redirect:/settings/surveyDefinitions/" + encodeUrlPathSegment( question.getPage().getSurveyDefinition().getId().toString(), httpServletRequest); } } catch (Exception e) { log.error(e.getMessage(), e); throw (new RuntimeException(e)); } } String encodeUrlPathSegment(String pathSegment, HttpServletRequest httpServletRequest) { log.info("encodeUrlPathSegment()"); try { String enc = httpServletRequest.getCharacterEncoding(); if (enc == null) { enc = WebUtils.DEFAULT_CHARACTER_ENCODING; } try { pathSegment = UriUtils.encodePathSegment(pathSegment, enc); } catch (UnsupportedEncodingException uee) { log.error(uee); } return pathSegment; } catch (Exception e) { log.error(e.getMessage(), e); throw (new RuntimeException(e)); } } @ExceptionHandler(RuntimeException.class) public String handleRuntimeException(RuntimeException ex, HttpServletRequest request) { log.error(ex); log.error("redirect to /uncaughtException"); return "redirect:/uncaughtException"; } }