Java tutorial
/** * Copyright 2010 Vstra Gtalandsregionen * * This library is free software; you can redistribute it and/or modify * it under the terms of version 2.1 of the GNU Lesser General Public * License as published by the Free Software Foundation. * * This library 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 this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place, Suite 330, * Boston, MA 02111-1307 USA * */ package se.vgregion.portal.innovationsslussen.idea.controller; import com.liferay.portal.kernel.exception.PortalException; import com.liferay.portal.kernel.exception.SystemException; import com.liferay.portal.kernel.search.Indexer; import com.liferay.portal.kernel.search.IndexerRegistryUtil; import com.liferay.portal.kernel.util.ParamUtil; import com.liferay.portal.kernel.util.WebKeys; import com.liferay.portal.model.Layout; import com.liferay.portal.service.LayoutLocalServiceUtil; import com.liferay.portal.service.ServiceContext; import com.liferay.portal.service.ServiceContextFactory; import com.liferay.portal.theme.ThemeDisplay; import com.liferay.portal.util.Portal; import com.liferay.portal.util.PortalUtil; import com.liferay.portlet.messageboards.service.MBMessageLocalServiceUtil; import org.apache.commons.fileupload.FileItemIterator; import org.apache.commons.fileupload.FileItemStream; import org.apache.commons.fileupload.FileUploadException; import org.apache.commons.fileupload.portlet.PortletFileUpload; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.beans.factory.annotation.Value; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.ui.ModelMap; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.portlet.bind.annotation.ActionMapping; import org.springframework.web.portlet.bind.annotation.RenderMapping; import org.springframework.web.portlet.bind.annotation.ResourceMapping; import se.vgregion.portal.innovationsslussen.BaseController; import se.vgregion.portal.innovationsslussen.domain.IdeaContentType; import se.vgregion.portal.innovationsslussen.domain.jpa.Idea; import se.vgregion.portal.innovationsslussen.domain.json.ObjectEntry; import se.vgregion.portal.innovationsslussen.domain.vo.CommentItemVO; import se.vgregion.portal.innovationsslussen.util.IdeaPortletUtil; import se.vgregion.portal.innovationsslussen.util.IdeaPortletsConstants; import se.vgregion.service.barium.BariumException; import se.vgregion.service.innovationsslussen.exception.UpdateIdeaException; import se.vgregion.service.innovationsslussen.idea.IdeaService; import se.vgregion.service.innovationsslussen.idea.permission.IdeaPermissionChecker; import se.vgregion.service.innovationsslussen.idea.permission.IdeaPermissionCheckerService; import se.vgregion.service.innovationsslussen.idea.settings.IdeaSettingsService; import se.vgregion.service.innovationsslussen.ldap.LdapService; import se.vgregion.util.Util; import javax.portlet.ActionRequest; import javax.portlet.ActionResponse; import javax.portlet.PortletRequest; import javax.portlet.PortletResponse; import javax.portlet.RenderRequest; import javax.portlet.RenderResponse; import javax.portlet.ResourceRequest; import javax.portlet.ResourceResponse; import javax.servlet.http.HttpServletResponse; import java.io.BufferedInputStream; import java.io.BufferedOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.sql.SQLException; import java.util.Arrays; import java.util.Date; import java.util.HashSet; import java.util.List; import java.util.Set; /** * Controller class for the view mode in idea portlet. * * @author Erik Andersson * @company Monator Technologies AB */ @Controller @RequestMapping(value = "VIEW") public class IdeaViewController extends BaseController { @Value("${bariumUrl}") private String bariumUrl; private final IdeaService ideaService; private final IdeaPermissionCheckerService ideaPermissionCheckerService; private final IdeaSettingsService ideaSettingsService; private LdapService ldapService; private Portal portal = PortalUtil.getPortal(); private final Set<String> rolesMayUploadFile = new HashSet<String>( Arrays.asList("Idea Innovationsslussen", "Idea Priority Council", "Idea Transporter")); private static final Logger LOGGER = LoggerFactory.getLogger(IdeaViewController.class.getName()); private int defaultCommentCount; /** * Instantiates a new idea view controller. * * @param ideaService the idea service * @param ideaPermissionCheckerService the idea permission checker service * @param ideaSettingsService the idea idea settings service */ @Autowired public IdeaViewController(IdeaService ideaService, IdeaPermissionCheckerService ideaPermissionCheckerService, IdeaSettingsService ideaSettingsService) { this.ideaService = ideaService; this.ideaPermissionCheckerService = ideaPermissionCheckerService; this.ideaSettingsService = ideaSettingsService; initDefaultCommentCount(); } private void initDefaultCommentCount() { try { defaultCommentCount = Integer.parseInt(ideaService.getDefaultCommentCount()); } catch (Exception e) { defaultCommentCount = 10; } } protected Layout getFriendlyURLLayout(long scopeGroupId, boolean priv) throws SystemException, PortalException { return LayoutLocalServiceUtil.getFriendlyURLLayout(scopeGroupId, priv, "/ide"); } /** * The default render method. * * @param request the request * @param response the response * @param model the model * @return the view */ @RenderMapping() public String showIdea(RenderRequest request, RenderResponse response, final ModelMap model) throws PortalException, SystemException { ThemeDisplay themeDisplay = getThemeDisplay(request); String ideaType = ParamUtil.getString(request, "type", "public"); String returnView = "view_public"; //If a user trying to accsess the private part of an idea when not sign in. if (ideaType.equals("private") && !themeDisplay.isSignedIn()) { returnView = "idea_not_sign_in"; } else { long scopeGroupId = themeDisplay.getScopeGroupId(); long companyId = themeDisplay.getCompanyId(); long userId = themeDisplay.getUserId(); boolean isSignedIn = themeDisplay.isSignedIn(); String urlTitle = ParamUtil.getString(request, "urlTitle", ""); Layout ideaLayout = getFriendlyURLLayout(scopeGroupId, themeDisplay.getLayout().isPrivateLayout()); long ideaPlid = ideaLayout.getPlid(); model.addAttribute("ideaPlid", ideaPlid); int maxCommentCountDisplay = ParamUtil.getInteger(request, "maxCommentCountDisplay", defaultCommentCount); boolean moreComments = ParamUtil.getString(request, "moreComments") != null; if (moreComments) { maxCommentCountDisplay += defaultCommentCount; } if (!urlTitle.equals("")) { Idea idea = ideaService.findIdeaByUrlTitle(urlTitle); if (idea != null) { boolean isIdeaUserLiked = ideaService.getIsIdeaUserLiked(companyId, scopeGroupId, userId, urlTitle); boolean isIdeaUserFavorite = ideaService.getIsIdeaUserFavorite(companyId, scopeGroupId, userId, urlTitle); List<CommentItemVO> commentsList = null; if (ideaType.equals("private")) { commentsList = ideaService.getPrivateComments(idea); } else { commentsList = ideaService.getPublicComments(idea); } if (idea.getIdeaContentPrivate() != null) { String ideTansportor = idea.getIdeaContentPrivate().getIdeTansportor(); if (ideTansportor != null && !ideTansportor.isEmpty()) { model.addAttribute("tansportor", ideTansportor); } } IdeaPermissionChecker ideaPermissionChecker = ideaPermissionCheckerService .getIdeaPermissionChecker(scopeGroupId, userId, idea); model.addAttribute("commentCount", commentsList.size()); commentsList = commentsList.subList(0, Math.min(maxCommentCountDisplay, commentsList.size())); idea = IdeaPortletUtil.replaceBreaklines(idea); model.addAttribute("idea", idea); model.addAttribute("commentsList", commentsList); model.addAttribute("commentsDelta", 1); model.addAttribute("isIdeaUserFavorite", isIdeaUserFavorite); model.addAttribute("isIdeaUserLiked", isIdeaUserLiked); model.addAttribute("urlTitle", urlTitle); model.addAttribute("userId", userId); model.addAttribute("isSignedIn", isSignedIn); model.addAttribute("ideaPermissionChecker", ideaPermissionChecker); model.addAttribute("ideaType", ideaType); model.addAttribute("maxCommentCountDisplay", maxCommentCountDisplay); model.addAttribute("defaultCommentCount", defaultCommentCount); model.addAttribute("ideaPortletName", IdeaPortletsConstants.PORTLET_NAME_IDEA_PORTLET); model.addAttribute("bariumUrl", bariumUrl); if (ideaType.equals("private") && (ideaPermissionChecker.getHasPermissionViewIdeaPrivate() || idea.getUserId() == userId)) { returnView = "view_private"; } // If a user trying to access the public or private part of an idea that still is private. // The user dose not have premmisions and is not the creator of the idea. // Showing 404 view. if (!idea.isPublic() && !(ideaPermissionChecker.getHasPermissionViewIdeaPrivate() || idea.getUserId() == userId)) { HttpServletResponse httpServletResponse = PortalUtil.getHttpServletResponse(response); httpServletResponse.setStatus(HttpServletResponse.SC_NOT_FOUND); returnView = "idea_404"; } } else { HttpServletResponse httpServletResponse = getHttpServletResponse(response); httpServletResponse.setStatus(HttpServletResponse.SC_NOT_FOUND); returnView = "idea_404"; } } } return returnView; } protected HttpServletResponse getHttpServletResponse(RenderResponse response) { return PortalUtil.getHttpServletResponse(response); } /** * Upload file render. * * @param request the request * @param response the response * @param model the model * @return the string */ @RenderMapping(params = "showView=showUploadFile") public String uploadFile(RenderRequest request, RenderResponse response, Model model) { if (!getThemeDisplay(request).isSignedIn()) { return "idea_not_sign_in"; } model.addAttribute("urlTitle", request.getParameter("urlTitle")); model.addAttribute("ideaType", request.getParameter("ideaType")); return "upload_file"; } /** * Method handling Action request. * * @param request the request * @param response the response * @param model the model */ @ActionMapping("someAction") public final void someAction(ActionRequest request, ActionResponse response, final ModelMap model) { LOGGER.info("someAction"); response.setRenderParameter("view", "view"); } /** * Method handling Action request. * * @param request the request * @param response the response * @param model the model */ @ActionMapping(params = "action=addComment") public final void addComment(ActionRequest request, ActionResponse response, final ModelMap model) { ThemeDisplay themeDisplay = getThemeDisplay(request); String urlTitle = ParamUtil.getString(request, "urlTitle", ""); Idea idea = ideaService.findIdeaByUrlTitle(urlTitle); long userId = themeDisplay.getUserId(); long groupId = themeDisplay.getScopeGroupId(); IdeaContentType ideaContentType = IdeaContentType.valueOf(ParamUtil.getString(request, "ideaContentType")); String comment = ParamUtil.getString(request, "comment", ""); if (!isAllowedToDoAction(request, idea, Action.ADD_COMMENT, ideaContentType)) { LOGGER.error("User is denied to add comment. idea.getId(): " + idea.getId() + ", idea.getUserId(): " + idea.getUserId() + ", idea.getTitle(): " + idea.getTitle()); sendRedirectToContextRoot(response); return; } if (!comment.equals("")) { try { ServiceContext serviceContext = ServiceContextFactory.getInstance(Idea.class.getName(), request); //Add a mbMessage if (ideaContentType == IdeaContentType.IDEA_CONTENT_TYPE_PUBLIC) { ideaService.addMBMessage(idea, serviceContext, groupId, userId, comment, idea.getIdeaContentPublic().getId()); //Send email notification. ideaService.sendEmailNotification(idea, true); } else if (ideaContentType == IdeaContentType.IDEA_CONTENT_TYPE_PRIVATE) { ideaService.addMBMessage(idea, serviceContext, groupId, userId, comment, idea.getIdeaContentPrivate().getId()); idea.setCommentsCount(idea.getCommentsCount() + 1); idea.setLastPrivateCommentDate(new Date()); idea = ideaService.save(idea); //Send email notification. ideaService.sendEmailNotification(idea, false); } } catch (PortalException e) { LOGGER.error(e.getMessage(), e); } catch (SystemException e) { LOGGER.error(e.getMessage(), e); } } if (ideaContentType == IdeaContentType.IDEA_CONTENT_TYPE_PRIVATE) { response.setRenderParameter("type", "private"); } response.setRenderParameter("urlTitle", urlTitle); } private boolean isAllowedToDoAction(PortletRequest request, Idea idea, Action action, IdeaContentType ideaContentType) { // Initialize variables ThemeDisplay themeDisplay = getThemeDisplay(request); long userId = themeDisplay.getUserId(); long groupId = themeDisplay.getScopeGroupId(); IdeaPermissionChecker ideaPermissionChecker = ideaPermissionCheckerService.getIdeaPermissionChecker(groupId, userId, idea); // Then check for necessary permissions. boolean publicAndPublicPermission; boolean privateAndPrivatePermission; boolean isSignedIn; boolean publicPart; if (ideaContentType.equals(IdeaContentType.IDEA_CONTENT_TYPE_PUBLIC)) { publicPart = true; } else if (ideaContentType.equals(IdeaContentType.IDEA_CONTENT_TYPE_PRIVATE)) { publicPart = false; } else { throw new IllegalArgumentException("Unexpected IdeaContentType."); } switch (action) { case ADD_COMMENT: isSignedIn = themeDisplay.isSignedIn(); if (!isSignedIn) { return false; } if (idea.getUserId() == userId) { return true; } publicAndPublicPermission = publicPart && ideaPermissionChecker.getHasPermissionAddCommentPublic(); privateAndPrivatePermission = !publicPart && ideaPermissionChecker.getHasPermissionAddCommentPrivate(); break; case UPLOAD_FILE: isSignedIn = themeDisplay.isSignedIn(); if (!isSignedIn) { return false; } publicAndPublicPermission = publicPart && ideaPermissionChecker.getHasPermissionAddCommentPublic(); privateAndPrivatePermission = !publicPart && ideaPermissionChecker.getHasPermissionAddCommentPrivate(); break; case VIEW_IDEA: publicAndPublicPermission = publicPart && ideaPermissionChecker.getHasPermissionViewIdeaPublic(); privateAndPrivatePermission = !publicPart && ideaPermissionChecker.getHasPermissionViewIdeaPrivate(); break; default: throw new IllegalArgumentException("Unexpected action: " + action); } boolean necessaryPermissions = publicAndPublicPermission || privateAndPrivatePermission; return necessaryPermissions; } private ThemeDisplay getThemeDisplay(PortletRequest request) { return (ThemeDisplay) request.getAttribute(WebKeys.THEME_DISPLAY); } private enum Action { UPLOAD_FILE, VIEW_IDEA, ADD_COMMENT } private void sendRedirectToContextRoot(PortletResponse response) { try { HttpServletResponse servletResponse = portal.getHttpServletResponse(response); servletResponse.sendRedirect("/"); } catch (IOException e) { throw new RuntimeException(e); } } /** * Method handling Action request. * * @param request the request * @param response the response * @param model the model */ @ActionMapping(params = "action=addFavorite") public final void addFavorite(ActionRequest request, ActionResponse response, final ModelMap model) { LOGGER.info("addFavorite"); ThemeDisplay themeDisplay = getThemeDisplay(request); long companyId = themeDisplay.getCompanyId(); long groupId = themeDisplay.getScopeGroupId(); long userId = themeDisplay.getUserId(); IdeaContentType ideaContentType = IdeaContentType.valueOf(ParamUtil.getString(request, "ideaContentType")); String urlTitle = ParamUtil.getString(request, "urlTitle", ""); if (themeDisplay.isSignedIn()) { ideaService.addFavorite(companyId, groupId, userId, urlTitle); } if (ideaContentType == IdeaContentType.IDEA_CONTENT_TYPE_PRIVATE) { response.setRenderParameter("type", "private"); } response.setRenderParameter("urlTitle", urlTitle); } /** * Method handling Action request. * * @param request the request * @param response the response * @param model the model */ @ActionMapping(params = "action=addLike") public final void addLike(ActionRequest request, ActionResponse response, final ModelMap model) { LOGGER.info("addLike"); ThemeDisplay themeDisplay = getThemeDisplay(request); long companyId = themeDisplay.getCompanyId(); long groupId = themeDisplay.getScopeGroupId(); long userId = themeDisplay.getUserId(); IdeaContentType ideaContentType = IdeaContentType.valueOf(ParamUtil.getString(request, "ideaContentType")); String urlTitle = ParamUtil.getString(request, "urlTitle", ""); if (themeDisplay.isSignedIn()) { ideaService.addLike(companyId, groupId, userId, urlTitle); } if (ideaContentType == IdeaContentType.IDEA_CONTENT_TYPE_PRIVATE) { response.setRenderParameter("type", "private"); } response.setRenderParameter("urlTitle", urlTitle); } /** * Method handling Action request. * * @param request the request * @param response the response * @param model the model */ @ActionMapping(params = "action=deleteComment") public final void deleteComment(ActionRequest request, ActionResponse response, final ModelMap model) { LOGGER.info("deleteComment"); IdeaContentType ideaContentType = IdeaContentType.valueOf(ParamUtil.getString(request, "ideaContentType")); String urlTitle = ParamUtil.getString(request, "urlTitle", ""); long commentId = ParamUtil.getLong(request, "commentId", 0); if (commentId != 0) { try { Idea idea = ideaService.findIdeaByUrlTitle(urlTitle); if (!isAllowedToDoAction(request, idea, Action.ADD_COMMENT, ideaContentType)) { sendRedirectToContextRoot(response); return; } // TODO use permission checker to verify that user has delete permissions //IdeaPermissionChecker ideaPermissionChecker = ideaPermissionCheckerService.getIdeaPermissionChecker( // groupId, userId, idea); MBMessageLocalServiceUtil.deleteDiscussionMessage(commentId); Indexer indexer = IndexerRegistryUtil.getIndexer(IDEA_CLASS); indexer.reindex(idea); } catch (PortalException e) { LOGGER.error(e.getMessage(), e); } catch (SystemException e) { LOGGER.error(e.getMessage(), e); } } if (ideaContentType == IdeaContentType.IDEA_CONTENT_TYPE_PRIVATE) { response.setRenderParameter("type", "private"); } response.setRenderParameter("urlTitle", urlTitle); } /** * Method handling Action request. * * @param request the request * @param response the response * @param model the model */ @ActionMapping(params = "action=removeFavorite") public final void removeFavorite(ActionRequest request, ActionResponse response, final ModelMap model) { LOGGER.info("removeFavorite"); ThemeDisplay themeDisplay = getThemeDisplay(request); long companyId = themeDisplay.getCompanyId(); long groupId = themeDisplay.getScopeGroupId(); long userId = themeDisplay.getUserId(); IdeaContentType ideaContentType = IdeaContentType.valueOf(ParamUtil.getString(request, "ideaContentType")); String urlTitle = ParamUtil.getString(request, "urlTitle", ""); if (themeDisplay.isSignedIn()) { ideaService.removeFavorite(companyId, groupId, userId, urlTitle); } if (ideaContentType == IdeaContentType.IDEA_CONTENT_TYPE_PRIVATE) { response.setRenderParameter("type", "private"); } response.setRenderParameter("urlTitle", urlTitle); } /** * Method handling Action request. * * @param request the request * @param response the response * @param model the model */ @ActionMapping(params = "action=removeLike") public final void removeLike(ActionRequest request, ActionResponse response, final ModelMap model) { LOGGER.info("removeLike"); ThemeDisplay themeDisplay = getThemeDisplay(request); long companyId = themeDisplay.getCompanyId(); long groupId = themeDisplay.getScopeGroupId(); long userId = themeDisplay.getUserId(); IdeaContentType ideaContentType = IdeaContentType.valueOf(ParamUtil.getString(request, "ideaContentType")); String urlTitle = ParamUtil.getString(request, "urlTitle", ""); if (themeDisplay.isSignedIn()) { ideaService.removeLike(companyId, groupId, userId, urlTitle); } if (ideaContentType == IdeaContentType.IDEA_CONTENT_TYPE_PRIVATE) { response.setRenderParameter("type", "private"); } response.setRenderParameter("urlTitle", urlTitle); } /** * Method handling Action request. * * @param request the request * @param response the response * @param model the model */ @ActionMapping(params = "action=updateFromBarium") public final void updateFromBarium(ActionRequest request, ActionResponse response, final ModelMap model) { LOGGER.info("updateFromBarium"); ThemeDisplay themeDisplay = getThemeDisplay(request); IdeaContentType ideaContentType = IdeaContentType.valueOf(ParamUtil.getString(request, "ideaContentType")); String id = ParamUtil.getString(request, "id"); String urlTitle = ParamUtil.getString(request, "urlTitle", ""); if (themeDisplay.isSignedIn()) { try { Idea idea = ideaService.find(id); IdeaService.UpdateFromBariumResult result = ideaService.updateFromBarium(idea); urlTitle = result.getNewIdea().getUrlTitle(); model.put("updateFromBariumOutcome", result.isChanged()); } catch (UpdateIdeaException e) { LOGGER.error(e.getMessage(), e); throw new RuntimeException(e); } } if (ideaContentType == IdeaContentType.IDEA_CONTENT_TYPE_PRIVATE) { response.setRenderParameter("type", "private"); } response.setRenderParameter("urlTitle", urlTitle); } /** * Upload file action. * * @param request the request * @param response the response * @param model the model * @throws FileUploadException the file upload exception */ @ActionMapping(params = "action=uploadFile") public void uploadFile(ActionRequest request, ActionResponse response, Model model) throws FileUploadException, SystemException, PortalException { ThemeDisplay themeDisplay = getThemeDisplay(request); long scopeGroupId = themeDisplay.getScopeGroupId(); long userId = themeDisplay.getUserId(); String urlTitle = request.getParameter("urlTitle"); String fileType = request.getParameter("fileType"); boolean publicIdea; if (fileType.equals("public")) { publicIdea = true; } else if (fileType.equals("private")) { publicIdea = false; } else { throw new IllegalArgumentException("Unknown filetype: " + fileType); } //TODO ondig slagning? Cacha? Idea idea = ideaService.findIdeaByUrlTitle(urlTitle); //TODO Kan det inte finnas flera med samma titel i olika communities? IdeaContentType ideaContentType = publicIdea ? IdeaContentType.IDEA_CONTENT_TYPE_PUBLIC : IdeaContentType.IDEA_CONTENT_TYPE_PRIVATE; if (!isAllowedToDoAction(request, idea, Action.UPLOAD_FILE, ideaContentType)) { sendRedirectToContextRoot(response); return; } boolean mayUploadFile = idea.getUserId() == userId; IdeaPermissionChecker ideaPermissionChecker = ideaPermissionCheckerService .getIdeaPermissionChecker(scopeGroupId, userId, idea); if (!mayUploadFile) { if (publicIdea) { mayUploadFile = ideaPermissionChecker.isHasPermissionAddDocumentPublic(); } else { mayUploadFile = ideaPermissionChecker.isHasPermissionAddDocumentPrivate(); } } if (mayUploadFile) { response.setRenderParameter("urlTitle", urlTitle); PortletFileUpload p = new PortletFileUpload(); try { FileItemIterator itemIterator = p.getItemIterator(request); while (itemIterator.hasNext()) { FileItemStream fileItemStream = itemIterator.next(); if (fileItemStream.getFieldName().equals("file")) { InputStream is = fileItemStream.openStream(); BufferedInputStream bis = new BufferedInputStream(is); String fileName = fileItemStream.getName(); String contentType = fileItemStream.getContentType(); ideaService.uploadFile(idea, publicIdea, fileName, contentType, bis); } } } catch (FileUploadException e) { doExceptionStuff(e, response, model); return; } catch (IOException e) { doExceptionStuff(e, response, model); return; } catch (se.vgregion.service.innovationsslussen.exception.FileUploadException e) { doExceptionStuff(e, response, model); return; } catch (RuntimeException e) { Throwable lastCause = Util.getLastCause(e); if (lastCause instanceof SQLException) { SQLException nextException = ((SQLException) lastCause).getNextException(); if (nextException != null) { LOGGER.error(nextException.getMessage(), nextException); } } } finally { response.setRenderParameter("ideaType", fileType); } } else { throw new FileUploadException("The user is not authorized to upload to this idea instance."); } response.setRenderParameter("urlTitle", urlTitle); response.setRenderParameter("type", fileType); response.setRenderParameter("showView", "showIdea"); } private void doExceptionStuff(Exception e, ActionResponse response, Model model) { LOGGER.error(e.getMessage(), e); response.setRenderParameter("showView", "showUploadFile"); model.addAttribute("errorMessage", "Uppladdningen misslyckades"); } /** * Download file resource mapping. * * @param id the id * @param response the response * @throws BariumException the barium exception * @throws IOException Signals that an I/O exception has occurred. */ @ResourceMapping("downloadFile") public void downloadFile(@RequestParam("id") String id, @RequestParam("ideaId") String ideaId, ResourceRequest request, ResourceResponse response) throws BariumException, IOException { ObjectEntry objectEntry = ideaService.getObject(id); String name = objectEntry.getName(); Idea idea = ideaService.find(ideaId); IdeaContentType ideaContentType; boolean ideaOpenPartContainsFile = ideaService.ideaOpenPartContainsFile(idea, id); boolean ideaClosedPartContainsFile = ideaService.ideaClosedPartContainsFile(idea, id); boolean ideaContainsFile = ideaOpenPartContainsFile || ideaClosedPartContainsFile; if (!ideaContainsFile) { throw new IllegalArgumentException("The idea doesn't contain the requested file."); } else if (ideaOpenPartContainsFile && ideaClosedPartContainsFile) { // Just an extra check to see that nothing unexpected is found. throw new IllegalStateException( "A specific file should never exist in both the open and closed part of an" + " idea."); } else { // We know that exactly one is true. ideaContentType = ideaOpenPartContainsFile ? IdeaContentType.IDEA_CONTENT_TYPE_PUBLIC : IdeaContentType.IDEA_CONTENT_TYPE_PRIVATE; } if (!isAllowedToDoAction(request, idea, Action.VIEW_IDEA, ideaContentType)) { sendRedirectToContextRoot(response); return; } //set http headers to instruct the browser how it should deliver the content String fileType = objectEntry.getFileType(); if (fileType == null || "".equals(fileType)) { fileType = "octet-stream"; } response.setCharacterEncoding("UTF-8"); response.setContentType("application/" + fileType); response.setProperty("Content-Disposition", "inline; filename=" + name); BufferedOutputStream bos = null; OutputStream pos = null; BufferedInputStream bis = null; InputStream is = null; try { is = ideaService.downloadFile(id); bis = new BufferedInputStream(is); pos = response.getPortletOutputStream(); bos = new BufferedOutputStream(pos); final int oneKB = 1024; byte[] buf = new byte[oneKB]; int n; while ((n = bis.read(buf)) != -1) { bos.write(buf, 0, n); } } finally { Util.closeClosables(bos, pos, bis, is); } } public void setPortal(Portal portal) { this.portal = portal; } private static String IDEA_CLASS = "se.vgregion.portal.innovationsslussen.domain.jpa.Idea"; }