/*
* 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.Arrays;
import java.util.List;
import org.apache.avalon.framework.service.ServiceException;
import org.apache.avalon.framework.service.ServiceSelector;
import org.apache.lenya.cms.publication.Document;
import org.apache.lenya.cms.publication.DocumentFactory;
import org.apache.lenya.cms.publication.DocumentManager;
import org.apache.lenya.cms.publication.Publication;
import org.apache.lenya.cms.publication.PublicationException;
import org.apache.lenya.cms.publication.PublicationUtil;
import org.apache.lenya.cms.publication.util.DocumentSet;
import org.apache.lenya.cms.site.SiteException;
import org.apache.lenya.cms.site.SiteManager;
import org.apache.lenya.cms.site.SiteStructure;
import org.apache.lenya.cms.usecase.AbstractUsecase;
import org.apache.lenya.cms.usecase.UsecaseException;
/**
* Empty the trash.
*
* @version $Id: EmptyTrash.java 473861 2006-11-12 03:51:14Z gregor $
*/
public class EmptyTrash extends AbstractUsecase {
protected static final String DOCUMENTS = "documents";
/**
* @see org.apache.lenya.cms.usecase.AbstractUsecase#initParameters()
*/
protected void initParameters() {
super.initParameters();
try {
Document[] documents = getTrashDocuments();
setParameter(DOCUMENTS, Arrays.asList(documents));
} catch (SiteException e) {
throw new RuntimeException(e);
} catch (PublicationException e) {
throw new RuntimeException(e);
}
}
/**
* Lock the following objects:
* <ul>
* <li>all involved documents in the trash area</li>
* <li>the document trash site structure</li>
* </ul>
* @see org.apache.lenya.cms.usecase.AbstractUsecase#getNodesToLock()
*/
protected org.apache.lenya.cms.repository.Node[] getNodesToLock() throws UsecaseException {
List nodes = new ArrayList();
ServiceSelector selector = null;
SiteManager siteManager = null;
try {
Publication publication = PublicationUtil.getPublicationFromUrl(this.manager,
getDocumentFactory(),
getSourceURL());
DocumentFactory identityMap = getDocumentFactory();
Document[] docs = getTrashDocuments();
for (int i = 0; i < docs.length; i++) {
nodes.add(docs[i].getRepositoryNode());
}
selector = (ServiceSelector) this.manager.lookup(SiteManager.ROLE + "Selector");
siteManager = (SiteManager) selector.select(publication.getSiteManagerHint());
SiteStructure structure = siteManager.getSiteStructure(identityMap,
publication,
Publication.TRASH_AREA);
nodes.add(structure.getRepositoryNode());
} catch (Exception e) {
throw new UsecaseException(e);
} finally {
if (selector != null) {
if (siteManager != null) {
selector.release(siteManager);
}
this.manager.release(selector);
}
}
return (org.apache.lenya.cms.repository.Node[]) nodes.toArray(new org.apache.lenya.cms.repository.Node[nodes.size()]);
}
/**
* @see org.apache.lenya.cms.usecase.AbstractUsecase#doExecute()
*/
protected void doExecute() throws Exception {
super.doExecute();
DocumentManager documentManager = null;
try {
documentManager = (DocumentManager) this.manager.lookup(DocumentManager.ROLE);
Document[] documents = getTrashDocuments();
DocumentSet set = new DocumentSet(documents);
documentManager.delete(set);
} finally {
if (documentManager != null) {
this.manager.release(documentManager);
}
}
}
/**
* @return The documents in the trash area.
* @throws PublicationException if an error occurs.
* @throws SiteException if an error occurs.
*/
protected Document[] getTrashDocuments() throws PublicationException, SiteException {
Publication publication = PublicationUtil.getPublicationFromUrl(this.manager,
getDocumentFactory(),
getSourceURL());
DocumentFactory identityMap = getDocumentFactory();
Document[] documents;
ServiceSelector selector = null;
SiteManager siteManager = null;
try {
selector = (ServiceSelector) this.manager.lookup(SiteManager.ROLE + "Selector");
siteManager = (SiteManager) selector.select(publication.getSiteManagerHint());
documents = siteManager.getDocuments(identityMap, publication, Publication.TRASH_AREA);
} catch (ServiceException e) {
throw new RuntimeException(e);
} finally {
if (selector != null) {
if (siteManager != null) {
selector.release(siteManager);
}
this.manager.release(selector);
}
}
return documents;
}
}