Source Code : A utility class for manipulating paths

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A utility class for manipulating paths

      
/*
 * Copyright (C) 2008 Rob Manning
 * manningr@users.sourceforge.net
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

/**
 * A utility class for manipulating paths
 * 
 * @author manningr
 */
public class PathUtilsImpl 
{
  /**
   * Constructs a path out of the pathElements.
   * 
   * @param prependSlash
   *           if true this will ensure that the result begins with "/".
   * @param pathElements
   *           the strings to connect. They can have "/" in them which will be de-duped in the result, if
   *           necessary.
   * @return the path that was constructed.
   */
  public String buildPath(boolean prependSlash, String... pathElements)
  {
    StringBuilder result = new StringBuilder("/");

    for (String pathElement : pathElements)
    {
      result.append(pathElement).append("/");
    }

    String retVal = result.toString().replace("//", "/").replace("//", "/");

    if (retVal.endsWith("/"))
    {
      retVal = retVal.substring(0, retVal.length() - 1);
    }

    return retVal;
  }

  /**
   * Returns the file part of the specified path.
   * 
   * @param path
   *           the path
   * @return the file part of the path
   */
  public String getFileFromPath(String path)
  {
    if (path.indexOf("/") == -1) { return path; }
    int slashIndex = path.lastIndexOf("/");
    return path.substring(slashIndex+1);
  }

}

   
    
    
    
    
    
  

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