Java Canonical Path Create getCanonicalPath(String path)

Description

Canonicalize the specified file path according to the current platform's rules:

• Condense multiple consecutive path separators into a single path separator.
• Remove "."

  License

  Open Source License

  Parameter

  Parameter	Description
  path	the file path to be canonicalized

  Return

  the canonicalized file path

  Declaration

  public static String getCanonicalPath(String path) 
  

  Method Source Code

  //package com.java2s;
  /*//from  w w  w.ja va  2s  .  c  o  m
   * RHQ Management Platform
   * Copyright (C) 2005-2008 Red Hat, Inc.
   * All rights reserved.
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License, version 2, as
   * published by the Free Software Foundation, and/or the GNU Lesser
   * General Public License, version 2.1, also as published by the Free
   * Software Foundation.
   *
   * 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 and the GNU Lesser General Public License
   * for more details.
   *
   * You should have received a copy of the GNU General Public License
   * and the GNU Lesser General Public License along with this program;
   * if not, write to the Free Software Foundation, Inc.,
   * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
   */
  
  import java.io.File;
  
  import java.io.IOException;
  
  public class Main {
      /**
       * Canonicalize the specified file path according to the current platform's rules:
       * <ul>
       *   <li>Condense multiple consecutive path separators into a single path separator.</li>
       *   <li>Remove "." path elements.</li>
       *   <li>Resolve ".." path elements.</li>
       *   <li>On Windows, normalize capitalization.</li>
       *   <li>On Windows, expand 8.3-abbreviated path elements (e.g. "DOCUME~1" -> "Documents and Settings").</li>
       * </ul>
       * <p/>
       * Unlike {@link File#getCanonicalPath()}, this method does <b>not</b> resolve symlinks.</li>
       * <p/>
       * The path may or may not reference an existing file.
       *
       * @param path the file path to be canonicalized
       *
       * @return the canonicalized file path
       */
      public static String getCanonicalPath(String path) {
          File file = new File(path);
          if (isUnix()) {
              // UNIX - Do *not* use File#getCanonicalFile, since it will resolve symlinks.
              file = new File(file.toURI().normalize()).getAbsoluteFile();
          } else {
              // Windows - Use File#getCanonicalFile(), since it will normalize
              // capitalization and will not resolve junctions (i.e. the NTFS
              // equivalent of symlinks).
              try {
                  file = file.getCanonicalFile();
              } catch (IOException e) {
                  // best we can do...
                  file = new File(file.toURI().normalize()).getAbsoluteFile();
              }
          }
          return file.getPath();
      }
  
      private static boolean isUnix() {
          return File.separatorChar == '/';
      }
  }
  

  Related

  1. getCanonicalPath(String name)
  2. getCanonicalPath(String outputPath)
  3. getCanonicalPath(String path)
  4. getCanonicalPath(String path)
  5. getCanonicalPath(String path)
  6. getCanonicalPath(String path)
  7. getCanonicalPath(String path)
  8. getCanonicalPath(String path)
  9. getCanonicalPath(String path)