/*
* Copyright 1999-2004 The Apache Software Foundation
*
* Licensed 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.
*
*/
/* $Id: Deactivate.java 42739 2004-03-20 11:46:20Z gregor $ */
package org.apache.lenya.defaultpub.cms.task;
import java.io.IOException;
import org.apache.avalon.framework.parameters.ParameterException;
import org.apache.lenya.cms.publication.Document;
import org.apache.lenya.cms.publication.DocumentBuildException;
import org.apache.lenya.cms.publication.DocumentBuilder;
import org.apache.lenya.cms.publication.DocumentException;
import org.apache.lenya.cms.publication.Label;
import org.apache.lenya.cms.publication.Publication;
import org.apache.lenya.cms.publication.PublicationException;
import org.apache.lenya.cms.publication.ResourcesManager;
import org.apache.lenya.cms.publication.SiteTree;
import org.apache.lenya.cms.publication.SiteTreeException;
import org.apache.lenya.cms.publication.SiteTreeNode;
import org.apache.lenya.cms.publication.task.PublicationTask;
import org.apache.lenya.cms.task.ExecutionException;
import org.apache.lenya.workflow.WorkflowException;
import org.apache.log4j.Category;
/**
* Deactivate a document.
*/
public class Deactivate extends PublicationTask {
private static final Category log = Category.getInstance(Deactivate.class);
public static final String PARAMETER_DOCUMENT_ID = "document-id";
public static final String PARAMETER_DOCUMENT_LANGUAGE = "document-language";
/**
* @see org.apache.lenya.cms.task.Task#execute(java.lang.String)
*/
public void execute(String servletContextPath) throws ExecutionException {
if (log.isDebugEnabled()) {
log.debug("Starting deactivation");
}
try {
Document liveDocument = getLiveDocument();
if (!checkPreconditions(liveDocument)) {
setResult(FAILURE);
} else {
if (log.isDebugEnabled()) {
log.debug("Can execute task: last label, children are published.");
}
deactivate(liveDocument);
setResult(SUCCESS);
}
} catch (ExecutionException e) {
throw e;
} catch (Exception e) {
throw new ExecutionException(e);
}
}
/**
* Checks if the preconditions are complied.
* @param liveDocument The document to publish.
* @return A boolean value.
* @throws PublicationException when something went wrong.
* @throws ExecutionException when something went wrong.
* @throws DocumentException when something went wrong.
* FIXME: Remove references to sitetree
*/
protected boolean checkPreconditions(Document liveDocument)
throws
PublicationException,
DocumentException,
SiteTreeException,
ExecutionException {
boolean OK = true;
Document authoringDocument = getPublication().getAreaVersion(liveDocument, Publication.AUTHORING_AREA);
OK = OK && canWorkflowFire(authoringDocument);
SiteTree tree = getPublication().getSiteTree(liveDocument.getArea());
SiteTreeNode node = tree.getNode(liveDocument.getId());
if (node == null) {
throw new ExecutionException(
"Sitetree node for document [" + liveDocument + "] does not exist!");
}
Label label = node.getLabel(liveDocument.getLanguage());
if (label == null) {
throw new ExecutionException(
"Sitetree label for document [" + liveDocument + "] does not exist!");
}
if (node.getLabels().length == 1 && node.getChildren().length > 0) {
if (log.isDebugEnabled()) {
log.debug(
"Cannot delete last language version of document ["
+ liveDocument
+ "] because this node has children.");
}
OK = false;
}
return OK;
}
/**
* Deactivates a document.
* @param liveDocument The live document.
*/
protected void deactivate(Document liveDocument)
throws
PublicationException,
ExecutionException,
IOException,
ParameterException,
WorkflowException,
DocumentException {
getPublication().deleteDocument(liveDocument);
if (!liveDocument.existsInAnyLanguage()) {
ResourcesManager resourcesManager = new ResourcesManager(liveDocument);
resourcesManager.deleteResources();
}
Document authoringDocument = getPublication().getAreaVersion(liveDocument, Publication.AUTHORING_AREA);
triggerWorkflow(authoringDocument);
}
/**
* Returns the live document to apply this task on.
* @return A document.
* @throws ParameterException when something went wrong.
* @throws DocumentBuildException when something went wrong.
* @throws ExecutionException when something went wrong.
*/
protected Document getLiveDocument()
throws ParameterException, DocumentBuildException, ExecutionException {
String id = getParameters().getParameter(PARAMETER_DOCUMENT_ID);
String language = getParameters().getParameter(PARAMETER_DOCUMENT_LANGUAGE);
DocumentBuilder builder = getPublication().getDocumentBuilder();
String url =
builder.buildCanonicalUrl(getPublication(), Publication.LIVE_AREA, id, language);
Document document = builder.buildDocument(getPublication(), url);
return document;
}
}