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OpenCms is an enterprise-ready, easy to use website content management system based on Java and XML technology. Offering a complete set of features, OpenCms helps content managers worldwide to create and maintain beautiful websites fast and efficiently.

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/*
 * This library is part of OpenCms -
 * the Open Source Content Management System
 *
 * Copyright (c) Alkacon Software GmbH & Co. KG (http://www.alkacon.com)
 *
 * This library 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 2.1 of the License, or (at your option) any later version.
 *
 * 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.
 *
 * For further information about Alkacon Software, please see the
 * company website: http://www.alkacon.com
 *
 * For further information about OpenCms, please see the
 * project website: http://www.opencms.org
 *
 * 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 org.opencms.ui.dialogs;

import org.opencms.file.CmsObject;
import org.opencms.file.CmsResource;
import org.opencms.file.CmsResourceFilter;
import org.opencms.file.CmsVfsResourceNotFoundException;
import org.opencms.lock.CmsLockActionRecord;
import org.opencms.lock.CmsLockActionRecord.LockChange;
import org.opencms.lock.CmsLockException;
import org.opencms.lock.CmsLockUtil;
import org.opencms.main.CmsException;
import org.opencms.main.CmsLog;
import org.opencms.main.OpenCms;
import org.opencms.relations.CmsRelation;
import org.opencms.relations.CmsRelationFilter;
import org.opencms.security.CmsRole;
import org.opencms.ui.A_CmsUI;
import org.opencms.ui.CmsVaadinUtils;
import org.opencms.ui.I_CmsDialogContext;
import org.opencms.ui.components.CmsBasicDialog;
import org.opencms.ui.components.CmsOkCancelActionHandler;
import org.opencms.ui.components.CmsResourceInfo;
import org.opencms.util.CmsUUID;

import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

import org.apache.commons.logging.Log;

import com.google.common.collect.HashMultimap;
import com.google.common.collect.Lists;
import com.google.common.collect.Multimap;
import com.google.common.collect.Sets;
import com.vaadin.ui.Button;
import com.vaadin.ui.Button.ClickListener;
import com.vaadin.ui.Component;
import com.vaadin.ui.HorizontalLayout;
import com.vaadin.ui.Label;
import com.vaadin.ui.VerticalLayout;

/**
 * Dialog for deleting resources.

*/ public class CmsDeleteDialog extends CmsBasicDialog { /** Logger instance for this class. */ static final Log LOG = CmsLog.getLog(CmsDeleteDialog.class); /** Serial version id. */ private static final long serialVersionUID = 1L; /** Box for displaying resource widgets. */ private VerticalLayout m_resourceBox; // private AbstractComponent m_container; /** Message if deleting resources is allowed or not */ private Label m_deleteResource; /** Label for the links. */ private Label m_linksLabel; /** The OK button. */ private Button m_okButton; /** The cancel button. */ private Button m_cancelButton; /** The dialog context. */ private I_CmsDialogContext m_context; /** * Creates a new instance.

* * @param context the dialog context */ public CmsDeleteDialog(I_CmsDialogContext context) { m_context = context; CmsVaadinUtils.readAndLocalizeDesign(this, CmsVaadinUtils.getWpMessagesForCurrentLocale(), null); displayResourceInfo(m_context.getResources()); m_cancelButton.addClickListener(new ClickListener() { /** Serial version id. */ private static final long serialVersionUID = 1L; public void buttonClick(Button.ClickEvent event) { cancel(); } }); m_okButton.addClickListener(new ClickListener() { /** Serial version id. */ private static final long serialVersionUID = 1L; public void buttonClick(Button.ClickEvent event) { submit(); } }); CmsObject cms = A_CmsUI.getCmsObject(); boolean canIgnoreBrokenLinks = OpenCms.getWorkplaceManager().getDefaultUserSettings().isAllowBrokenRelations() || OpenCms.getRoleManager().hasRole(cms, CmsRole.VFS_MANAGER); try { Multimap brokenLinks = getBrokenLinks(cms, m_context.getResources()); m_deleteResource.setValue( CmsVaadinUtils.getMessageText(org.opencms.workplace.commons.Messages.GUI_DELETE_MULTI_CONFIRMATION_0)); if (brokenLinks.isEmpty()) { m_linksLabel.setVisible(false); String noLinksBroken = CmsVaadinUtils.getMessageText( org.opencms.workplace.commons.Messages.GUI_DELETE_RELATIONS_NOT_BROKEN_0); m_resourceBox.addComponent(new Label(noLinksBroken)); } else { if (!canIgnoreBrokenLinks) { m_deleteResource.setValue( CmsVaadinUtils.getMessageText( org.opencms.workplace.commons.Messages.GUI_DELETE_RELATIONS_NOT_ALLOWED_0)); m_okButton.setVisible(false); } for (CmsResource source : brokenLinks.keySet()) { m_resourceBox.addComponent(new CmsResourceInfo(source)); for (CmsResource target : brokenLinks.get(source)) { m_resourceBox.addComponent(indent(new CmsResourceInfo(target))); } } } } catch (CmsException e) { m_context.error(e); return; } setActionHandler(new CmsOkCancelActionHandler() { private static final long serialVersionUID = 1L; @Override protected void cancel() { CmsDeleteDialog.this.cancel(); } @Override protected void ok() { submit(); } }); } /** * Gets the broken links.

* * @param cms the CMS context * @param selectedResources the selected resources * @return multimap of broken links, with sources as keys and targets as values * * @throws CmsException if something goes wrong */ public Multimap getBrokenLinks(CmsObject cms, List selectedResources) throws CmsException { Set descendants = Sets.newHashSet(); for (CmsResource root : selectedResources) { descendants.add(root); if (root.isFolder()) { descendants.addAll(cms.readResources(cms.getSitePath(root), CmsResourceFilter.IGNORE_EXPIRATION)); } } HashSet deleteIds = new HashSet(); for (CmsResource deleteRes : descendants) { deleteIds.add(deleteRes.getStructureId()); } Multimap linkMap = HashMultimap.create(); for (CmsResource resource : descendants) { List relations = cms.getRelationsForResource(resource, CmsRelationFilter.SOURCES); List result1 = new ArrayList(); for (CmsRelation relation : relations) { // only add related resources that are not going to be deleted if (!deleteIds.contains(relation.getSourceId())) { CmsResource source1 = relation.getSource(cms, CmsResourceFilter.ALL); if (!source1.getState().isDeleted()) { result1.add(source1); } } } List linkSources = result1; for (CmsResource source : linkSources) { linkMap.put(source, resource); } } return linkMap; } /** * Cancels the dialog.

*/ void cancel() { m_context.finish(new ArrayList()); } /** * Submits the dialog.

*/ void submit() { CmsObject cms = A_CmsUI.getCmsObject(); try { List changedIds = Lists.newArrayList(); for (CmsResource resource : m_context.getResources()) { changedIds.add(resource.getStructureId()); CmsLockActionRecord lockRecord = CmsLockUtil.ensureLock(cms, resource); try { cms.deleteResource(cms.getSitePath(resource), CmsResource.DELETE_PRESERVE_SIBLINGS); } finally { if (lockRecord.getChange().equals(LockChange.locked)) { if (!resource.getState().isNew()) { try { cms.unlockResource(resource); } catch (CmsVfsResourceNotFoundException e) { LOG.warn(e.getLocalizedMessage(), e); } catch (CmsLockException e) { LOG.warn(e.getLocalizedMessage(), e); } } } } } m_context.finish(changedIds); } catch (Exception e) { m_context.error(e); } } /** * Indents a resources box.

* * @param resourceInfo the resource box * * @return an indented resource box */ private Component indent(CmsResourceInfo resourceInfo) { boolean simple = false; if (simple) { return resourceInfo; } else { HorizontalLayout hl = new HorizontalLayout(); Label label = new Label(""); label.setWidth("35px"); hl.addComponent(label); hl.addComponent(resourceInfo); hl.setExpandRatio(resourceInfo, 1.0f); hl.setWidth("100%"); return hl; } } }





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