/*
* 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.Publication;
import org.apache.lenya.cms.publication.util.DocumentHelper;
import org.apache.lenya.cms.repository.Node;
import org.apache.lenya.cms.usecase.DocumentUsecase;
import org.apache.lenya.cms.usecase.UsecaseException;
/**
* Delete a language version.
*
* @version $Id: DeleteLanguage.java 559054 2007-07-24 14:04:40Z rfrovarp $
*/
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().getRepositoryNode();
Node siteNode = getSourceDocument().area().getSite().getRepositoryNode();
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));
}
}