| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.lenya.cms.site.usecases; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.apache.lenya.cms.publication.Document; |
| import org.apache.lenya.cms.publication.Node; |
| import org.apache.lenya.cms.publication.Publication; |
| import org.apache.lenya.cms.publication.util.DocumentHelper; |
| import org.apache.lenya.cms.usecase.DocumentUsecase; |
| import org.apache.lenya.cms.usecase.UsecaseException; |
| |
| /** |
| * Delete a language version. |
| * |
| * @version $Id$ |
| */ |
| public class DeleteLanguage extends DocumentUsecase { |
| |
| /** |
| * @see org.apache.lenya.cms.usecase.AbstractUsecase#doCheckPreconditions() |
| */ |
| protected void doCheckPreconditions() throws Exception { |
| super.doCheckPreconditions(); |
| if (hasErrors()) { |
| return; |
| } |
| |
| Document doc = getSourceDocument(); |
| |
| if (!doc.getArea().equals(Publication.AUTHORING_AREA)) { |
| addErrorMessage("This usecase can only be invoked in the authoring area!"); |
| } else if (doc.getLanguages().length == 1) { |
| addErrorMessage("The last language version cannot be removed."); |
| } |
| |
| if (doc.existsVersion(Publication.LIVE_AREA, doc.getLanguage())) { |
| addErrorMessage("The document can't be deleted if a live version exists."); |
| } |
| } |
| |
| /** |
| * @see org.apache.lenya.cms.usecase.AbstractUsecase#getNodesToLock() |
| */ |
| protected Node[] getNodesToLock() throws UsecaseException { |
| List nodes = new ArrayList(); |
| if(getSourceDocument() != null) { |
| Node docNode = getSourceDocument(); |
| Node siteNode = getSourceDocument().area().getSite(); |
| nodes.add(docNode); |
| nodes.add(siteNode); |
| } |
| return (Node[]) nodes.toArray(new Node[nodes.size()]); |
| } |
| |
| /** |
| * @see org.apache.lenya.cms.usecase.AbstractUsecase#doExecute() |
| */ |
| protected void doExecute() throws Exception { |
| super.doExecute(); |
| |
| Document document = getSourceDocument(); |
| document.getLink().delete(); |
| document.delete(); |
| |
| setTargetDocument(DocumentHelper.getExistingLanguageVersion(document)); |
| } |
| |
| } |