/*
* Copyright (C) 2003-2012 eXo Platform SAS.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.exoplatform.ecms.upgrade.script;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import javax.jcr.Node;
import javax.jcr.NodeIterator;
import javax.jcr.query.Query;
import javax.jcr.query.QueryManager;
import org.apache.commons.lang.StringUtils;
import org.exoplatform.commons.upgrade.UpgradeProductPlugin;
import org.exoplatform.commons.utils.PrivilegedSystemHelper;
import org.exoplatform.commons.version.util.VersionComparator;
import org.exoplatform.container.xml.InitParams;
import org.exoplatform.services.cms.scripts.ScriptService;
import org.exoplatform.services.cms.scripts.impl.ScriptServiceImpl;
import org.exoplatform.services.jcr.ext.common.SessionProvider;
import org.exoplatform.services.log.ExoLogger;
import org.exoplatform.services.log.Log;
/**
* Created by The eXo Platform SAS
* Author : Nguyen Anh Vu
* vuna@exoplatform.com
* Feb 23, 2012
*
* This class will be used to upgrade pre-defined scripts. Scripts with desire of manual upgration
* can be specified in file configuration.properties.<br>
* Syntax :<br>
* unchanged-scripts={script name list}
* For examples :<br>
* unchanged-scripts=action/AddMetadataScript.groovy, action/AddTaxonomyActionScript.groovy
*
*/
public class ScriptUpgradePlugin extends UpgradeProductPlugin {
private static final Log log = ExoLogger.getLogger(ScriptUpgradePlugin.class.getName());
private ScriptService scriptService_;
public ScriptUpgradePlugin(ScriptService scriptService, InitParams initParams) {
super(initParams);
this.scriptService_ = scriptService;
}
@Override
public void processUpgrade(String oldVersion, String newVersion) {
if (log.isInfoEnabled()) {
log.info("Start " + this.getClass().getName() + ".............");
}
String unchangedTemplates = PrivilegedSystemHelper.getProperty("unchanged-scripts");
SessionProvider sessionProvider = null;
if (StringUtils.isEmpty(unchangedTemplates)) {
unchangedTemplates = "";
}
try {
Set<String> unchangedTemplateSet = new HashSet<String>();
Set<String> allConfiguredScripts = scriptService_.getAllConfiguredScripts();
List<Node> removedNodes = new ArrayList<Node>();
for (String unchangedTemplate : unchangedTemplates.split(",")) {
unchangedTemplateSet.add(unchangedTemplate.trim());
}
//get all script nodes that need to be removed
sessionProvider = SessionProvider.createSystemProvider();
Node ecmExplorer = scriptService_.getECMScriptHome(sessionProvider);
QueryManager queryManager = ecmExplorer.getSession().getWorkspace().getQueryManager();
NodeIterator iter = queryManager.
createQuery("SELECT * FROM nt:file WHERE jcr:path LIKE '" +ecmExplorer.getPath() + "/%'", Query.SQL).
execute().getNodes();
while (iter.hasNext()) {
Node scriptNode = iter.nextNode();
if (!unchangedTemplateSet.contains(scriptNode.getPath().substring(ecmExplorer.getPath().length() + 1)) &&
allConfiguredScripts.contains(scriptNode.getName())) {
removedNodes.add(scriptNode);
}
}
//remove all old script nodes
for (Node removedNode : removedNodes) {
try {
removedNode.remove();
ecmExplorer.save();
} catch (Exception e) {
if (log.isInfoEnabled()) {
log.error("Error in " + this.getName() + ": Can not remove old template: " + removedNode.getPath());
}
}
}
// re-initialize new scripts
((ScriptServiceImpl)scriptService_).start();
} catch (Exception e) {
if (log.isErrorEnabled()) {
log.error("An unexpected error occurs when migrating scripts", e);
}
} finally {
if (sessionProvider != null) {
sessionProvider.close();
}
}
}
@Override
public boolean shouldProceedToUpgrade(String newVersion, String previousVersion) {
// --- return true only for the first version of platform
return VersionComparator.isAfter(newVersion,previousVersion);
}
}