Java tutorial
/** * Yobi, Project Hosting SW * * Copyright 2013 NAVER Corp. * http://yobi.io * * @Author Yi EungJun * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package controllers; import controllers.annotation.AnonymousCheck; import models.*; import models.enumeration.Direction; import models.enumeration.Operation; import models.resource.Resource; import org.apache.commons.lang3.ArrayUtils; import org.apache.commons.lang3.StringUtils; import play.data.Form; import play.db.ebean.Model; import play.i18n.Messages; import play.mvc.*; import utils.*; @AnonymousCheck public class AbstractPostingApp extends Controller { public static final int ITEMS_PER_PAGE = 15; public static class SearchCondition { public String orderBy; public String orderDir; public String filter; public int pageNum; public SearchCondition() { this.orderDir = Direction.DESC.direction(); this.orderBy = "id"; this.filter = ""; this.pageNum = 1; } } public static Result saveComment(final Comment comment, Form<? extends Comment> commentForm, final Call toView, Runnable containerUpdater) { if (commentForm.hasErrors()) { flash(Constants.WARNING, "post.comment.empty"); return redirect(toView); } containerUpdater.run(); // this updates comment.issue or comment.posting; if (comment.id != null && AccessControl.isAllowed(UserApp.currentUser(), comment.asResource(), Operation.UPDATE)) { comment.update(); } else { comment.setAuthor(UserApp.currentUser()); comment.save(); } // Attach all of the files in the current user's temporary storage. attachUploadFilesToPost(comment.asResource()); String urlToView = RouteUtil.getUrl(comment); NotificationEvent.afterNewComment(comment); return redirect(urlToView); } protected static Result delete(Model target, Resource resource, Call redirectTo) { if (!AccessControl.isAllowed(UserApp.currentUser(), resource, Operation.DELETE)) { return forbidden(ErrorViews.Forbidden.render("error.forbidden", resource.getProject())); } target.delete(); if (HttpUtil.isRequestedWithXHR(request())) { response().setHeader("Location", redirectTo.url()); return status(204); } return redirect(redirectTo); } protected static Result editPosting(AbstractPosting original, AbstractPosting posting, Form<? extends AbstractPosting> postingForm, Call redirectTo, Runnable preUpdateHook) { if (postingForm.hasErrors()) { return badRequest(ErrorViews.BadRequest.render("error.validation", original.project)); } if (!AccessControl.isAllowed(UserApp.currentUser(), original.asResource(), Operation.UPDATE)) { return forbidden(ErrorViews.Forbidden.render("error.forbidden", original.project)); } if (posting.body == null) { return status(REQUEST_ENTITY_TOO_LARGE, ErrorViews.RequestTextEntityTooLarge.render()); } posting.id = original.id; posting.createdDate = original.createdDate; posting.updatedDate = JodaDateUtil.now(); posting.authorId = original.authorId; posting.authorLoginId = original.authorLoginId; posting.authorName = original.authorName; posting.project = original.project; posting.setNumber(original.getNumber()); preUpdateHook.run(); try { posting.checkLabels(); } catch (IssueLabel.IssueLabelException e) { return badRequest(e.getMessage()); } posting.update(); posting.updateProperties(); // Attach the files in the current user's temporary storage. attachUploadFilesToPost(original.asResource()); return redirect(redirectTo); } public static void attachUploadFilesToPost(Resource resource) { final String[] temporaryUploadFiles = getTemporaryFileListFromHiddenForm(); if (isTemporaryFilesExist(temporaryUploadFiles)) { int attachedFileCount = Attachment.moveOnlySelected(UserApp.currentUser().asResource(), resource, temporaryUploadFiles); if (attachedFileCount != temporaryUploadFiles.length) { flash(Constants.TITLE, Messages.get("post.popup.fileAttach.hasMissing", temporaryUploadFiles.length - attachedFileCount)); flash(Constants.DESCRIPTION, Messages.get("post.popup.fileAttach.hasMissing.description", getTemporaryFilesServerKeepUpTimeOfMinuntes())); } } } private static long getTemporaryFilesServerKeepUpTimeOfMinuntes() { return AttachmentApp.TEMPORARYFILES_KEEPUP_TIME_MILLIS / (60 * 1000l); } private static String[] getTemporaryFileListFromHiddenForm() { Http.MultipartFormData body = request().body().asMultipartFormData(); if (body == null) { return new String[] {}; } String[] temporaryUploadFiles = body.asFormUrlEncoded() .get(AttachmentApp.TAG_NAME_FOR_TEMPORARY_UPLOAD_FILES); if (temporaryUploadFiles == null) { return new String[] {}; } final String CSV_DELIMITER = ","; return temporaryUploadFiles[0].split(CSV_DELIMITER); } private static boolean isTemporaryFilesExist(String[] files) { if (ArrayUtils.getLength(files) == 0) { return false; } return StringUtils.isNotBlank(files[0]); } }