Java tutorial
/* * #%L * Alfresco Repository WAR Community * %% * Copyright (C) 2005 - 2016 Alfresco Software Limited * %% * This file is part of the Alfresco software. * If the software was purchased under a paid Alfresco license, the terms of * the paid license agreement will prevail. Otherwise, the software is * provided under the following open source license terms: * * Alfresco 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. * * Alfresco 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 Alfresco. If not, see <http://www.gnu.org/licenses/>. * #L% */ package org.alfresco.web.bean.coci; import java.text.MessageFormat; import java.util.Map; import javax.faces.context.FacesContext; import javax.faces.event.ActionEvent; import javax.transaction.UserTransaction; import org.alfresco.model.ContentModel; import org.alfresco.repo.web.scripts.FileTypeImageUtils; import org.alfresco.service.cmr.repository.NodeRef; import org.alfresco.web.app.Application; import org.alfresco.web.app.servlet.DownloadContentServlet; import org.alfresco.web.bean.repository.Node; import org.alfresco.web.bean.repository.Repository; import org.alfresco.web.bean.users.UserPreferencesBean; import org.alfresco.web.ui.common.Utils; import org.alfresco.web.ui.common.component.UIActionLink; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; public class EditOfflineDialog extends CheckinCheckoutDialog { private static final long serialVersionUID = -4848508258494238150L; public static final String OFFLINE_EDITING = "offlineEditing"; public static final String CLOSE = "close"; public static final String MSG_ERROR_CHECKOUT = "error_checkout"; public static final String OFFLINE_TITLE = "offline_title"; private static Log logger = LogFactory.getLog(EditOfflineDialog.class); private boolean continueCountdown; protected UserPreferencesBean userPreferencesBean; @Override public void init(Map<String, String> parameters) { super.init(parameters); continueCountdown = true; } @Override public void restored() { super.restored(); continueCountdown = false; } @Override public String getContainerTitle() { FacesContext fc = FacesContext.getCurrentInstance(); String pattern = Application.getMessage(fc, OFFLINE_TITLE); return MessageFormat.format(pattern, property.getDocument().getName()); } @Override protected String finishImpl(FacesContext context, String outcome) throws Exception { return outcome; } @Override public String getCancelButtonLabel() { return Application.getMessage(FacesContext.getCurrentInstance(), CLOSE); } /** * Action listener for handle offline editing action. E.g "edit_doc_offline" * action * * @param event ActionEvent */ public void setupContentAction(ActionEvent event) { UIActionLink link = (UIActionLink) event.getComponent(); Map<String, String> params = link.getParameterMap(); String id = params.get("id"); if (id != null && id.length() != 0) { super.setupContentDocument(id); checkoutFile(property.getDocument()); if (userPreferencesBean.isDownloadAutomatically()) { FacesContext fc = FacesContext.getCurrentInstance(); this.navigator.setupDispatchContext(property.getDocument()); fc.getApplication().getNavigationHandler().handleNavigation(fc, null, "dialog:editOfflineDialog"); } else { FacesContext fc = FacesContext.getCurrentInstance(); fc.getApplication().getNavigationHandler().handleNavigation(fc, null, "dialog:close:browse"); } } else { property.setDocument(null); } super.resetState(); } /** * Checkout document to the same space as original one and then add the * OFFLINE_EDITING property. */ private void checkoutFile(Node node) { UserTransaction tx = null; FacesContext context = FacesContext.getCurrentInstance(); if (node != null) { try { tx = Repository.getUserTransaction(context, false); tx.begin(); if (logger.isDebugEnabled()) logger.debug("Trying to checkout content node Id: " + node.getId()); NodeRef workingCopyRef = null; // checkout the content to the current space workingCopyRef = property.getVersionOperationsService().checkout(node.getNodeRef()); getNodeService().setProperty(workingCopyRef, ContentModel.PROP_WORKING_COPY_MODE, OFFLINE_EDITING); // set the working copy Node instance Node workingCopy = new Node(workingCopyRef); property.setWorkingDocument(workingCopy); // create content URL to the content download servlet with ID and // expected filename String url = DownloadContentServlet.generateDownloadURL(workingCopyRef, workingCopy.getName()); workingCopy.getProperties().put("url", url); workingCopy.getProperties().put("fileType32", FileTypeImageUtils.getFileTypeImage(workingCopy.getName(), false)); // commit the transaction tx.commit(); } catch (Throwable err) { try { if (tx != null) { tx.rollback(); } } catch (Exception tex) { } Utils.addErrorMessage(Application.getMessage(FacesContext.getCurrentInstance(), MSG_ERROR_CHECKOUT) + err.getMessage(), err); } } else { logger.warn("WARNING: checkoutFile called without a current Document!"); } } @Override public String cancel() { super.cancel(); return "dialog:close:browse"; } /** * @return userPreferencesBean bean with current user's preferences */ public UserPreferencesBean getUserPreferencesBean() { return userPreferencesBean; } /** * @param userPreferencesBean bean with current user's preferences to set */ public void setUserPreferencesBean(UserPreferencesBean userPreferencesBean) { this.userPreferencesBean = userPreferencesBean; } /** * @return continueCountdown */ public boolean isContinueCountdown() { return continueCountdown; } /** * @param continueCountdown boolean */ public void setContinueCountdown(boolean continueCountdown) { this.continueCountdown = continueCountdown; } }