/***************************************************************************
* Copyright (C) 2003-2009 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see<http://www.gnu.org/licenses/>.
*
**************************************************************************/
package org.exoplatform.ecm.webui.component.explorer.control.filter;
import java.util.Map;
import javax.jcr.AccessDeniedException;
import javax.jcr.Node;
import javax.jcr.RepositoryException;
import org.exoplatform.ecm.webui.utils.Utils;
import org.exoplatform.webui.ext.filter.UIExtensionAbstractFilter;
import org.exoplatform.webui.ext.filter.UIExtensionFilterType;
/**
* Created by The eXo Platform SARL
* Author : Hoang Van Hung
* hunghvit@gmail.com
* Aug 6, 2009
*/
public class IsVersionableOrAncestorFilter extends UIExtensionAbstractFilter {
public IsVersionableOrAncestorFilter() {
this(null);
}
public IsVersionableOrAncestorFilter(String messageKey) {
super(messageKey, UIExtensionFilterType.MANDATORY);
}
public static boolean isAncestorVersionable(Node node) throws RepositoryException {
int depth = node.getDepth() - 1;
if (depth < 1) return false;
Node parent = null;
try {
parent = (Node) node.getAncestor(depth);
} catch (ClassCastException ex) {
parent = (Node) node.getAncestor(--depth);
} catch (AccessDeniedException ade){
return false;
}
while (true) {
if (parent.isNodeType(Utils.MIX_VERSIONABLE)) return true;
if (--depth == 0) return false;
try {
parent = (Node) node.getAncestor(depth);
} catch(RepositoryException re){
return false;
}
if (parent == null) return false;
}
}
public boolean accept(Map<String, Object> context) throws Exception {
if (context == null) return true;
Node currentNode = (Node) context.get(Node.class.getName());
if (Utils.isVersionable(currentNode) || isAncestorVersionable(currentNode)) return true;
return false;
}
public void onDeny(Map<String, Object> context) throws Exception {}
}