source/ch/cyberduck/core/PathRelativizer.java

   1 package ch.cyberduck.core;
   2
   3 /*
   4  * Copyright (c) 2002-2013 David Kocher. All rights reserved.
   5  * http://cyberduck.ch/
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * Bug fixes, suggestions and comments should be sent to feedback@cyberduck.ch
  18  */
  19
  20 import org.apache.commons.lang3.StringUtils;
  21
  22 /**
  23  * @version $Id$
  24  */
  25 public final class PathRelativizer {
  26
  27     private PathRelativizer() {
  28         //
  29     }
  30
  31     public static String relativize(String root, final String path) {
  32         if(StringUtils.isBlank(root)) {
  33             return path;
  34         }
  35         if(!StringUtils.equals(root, String.valueOf(Path.DELIMITER))) {
  36             root = root + String.valueOf(Path.DELIMITER);
  37         }
  38         if(StringUtils.contains(path, root)) {
  39             return path.substring(path.indexOf(root) + root.length());
  40         }
  41         return path;
  42     }
  43 }