/**
* OLAT - Online Learning and Training<br>
* http://www.olat.org
* <p>
* Licensed under the Apache License, Version 2.0 (the "License"); <br>
* you may not use this file except in compliance with the License.<br>
* You may obtain a copy of the License at
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* Unless required by applicable law or agreed to in writing,<br>
* software distributed under the License is distributed on an "AS IS" BASIS, <br>
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. <br>
* See the License for the specific language governing permissions and <br>
* limitations under the License.
* <p>
* Copyright (c) since 2004 at Multimedia- & E-Learning Services (MELS),<br>
* University of Zurich, Switzerland.
* <hr>
* <a href="http://www.openolat.org">
* OpenOLAT - Online Learning and Training</a><br>
* This file has been modified by the OpenOLAT community. Changes are licensed
* under the Apache 2.0 license as the original file.
* <p>
*/
package org.olat.core.util.vfs.util;
import org.olat.core.util.vfs.VFSContainer;
/**
* Initial Date: 17.01.2006
*
* @author Felix Jost
*
* Description:
* some utils for the VFS
*/
public class VFSUtil {
/**
* calculates a new vfscontainer and a filename where the container's base is where the file resides.<br>
* e.g.<br>
* container: /usr/local/olat/courses/123/coursefolder and filename: docs/bla/blu.doc<br>
* -> container /usr/local/olat/courses/123/coursefolder/docs/bla and filename: blu.doc
*
* @param oldRoot
* @param fileName
* @return
*/
public static ContainerAndFile calculateSubRoot(VFSContainer oldRoot, String fileUri) {
VFSContainer newC;
String newFile;
int sla = fileUri.lastIndexOf('/');
if (sla != -1) {
String root = fileUri.substring(0,sla);
newFile = fileUri.substring(sla+1);
newC = (VFSContainer)oldRoot.resolve(root);
} else {
newC = oldRoot;
newFile = fileUri;
}
return new ContainerAndFile(newC, newFile);
}
}