content: // FileURL.java - Construct a file: scheme URL
  
  /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You under the Apache License, Version 2.0
   * (the "License"); you may not use this file except in compliance with
   * the License.  You may obtain a copy of the License at
   * 
   *      http://www.apache.org/licenses/LICENSE-2.0
   * 
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package mf.org.apache.xml.resolver.helpers;
  
  import java.net.MalformedURLException;
  import java.net.URL;
  
  /**
   * Static method for dealing with file: URLs.
   * <p/>
   * <p>This class defines a static method that can be used to construct
   * an appropriate file: URL from parts. It's defined here so that it
   * can be reused throught the resolver.</p>
   * <p/>
   * <p>(Yes, I'd rather have called this class FileUR<b>I</b>, but
   * given that a jave.net.URL is returned, it seemed...even more
   * confusing.)</p>
   *
   * @author Norman Walsh
   *         <a href="mailto:Norman.Walsh@Sun.COM">Norman.Walsh@Sun.COM</a>
   * @version 1.0
   */
  public abstract class FileURL {
      protected FileURL() {
      }
  
      /**
       * Construct a file: URL for a path name.
       * <p/>
       * <p>URLs in the file: scheme can be constructed for paths on
       * the local file system. Several possibilities need to be considered:
       * </p>
       * <p/>
       * <ul>
       * <li>If the path does not begin with a slash, then it is assumed
       * to reside in the users current working directory
       * (System.getProperty("user.dir")).</li>
       * <li>On Windows machines, the current working directory uses
       * backslashes (\\, instead of /).</li>
       * <li>If the current working directory is "/", don't add an extra
       * slash before the base name.</li>
       * </ul>
       * <p/>
       * <p>This method is declared static so that other classes
       * can use it directly.</p>
       *
       * @param pathname The path name component for which to construct a URL.
       * @return The appropriate file: URL.
       * @throws MalformedURLException if the pathname can't be turned into
       *                               a proper URL.
       */
      public static URL makeURL(String pathname) throws MalformedURLException {
          if (pathname.startsWith("/")) {
              return new URL("file://" + pathname);
          }
  
          String userdir = System.getProperty("user.dir");
          userdir = userdir.replace('\\', '/');
  
          if (userdir.endsWith("/")) {
              return new URL("file:///" + userdir + pathname);
          } else {
              return new URL("file:///" + userdir + "/" + pathname);
          }
      }
  }
  