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1   package org.codehaus.plexus.classworlds;
2   
3   /*
4    * Copyright 2001-2006 Codehaus Foundation.
5    *
6    * Licensed under the Apache License, Version 2.0 (the "License");
7    * you may not use this file except in compliance with the License.
8    * You may obtain a copy of the License at
9    *
10   *      http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing, software
13   * distributed under the License is distributed on an "AS IS" BASIS,
14   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15   * See the License for the specific language governing permissions and
16   * limitations under the License.
17   */
18  
19  import java.net.URL;
20  import java.net.URLClassLoader;
21  import java.util.HashSet;
22  import java.util.Set;
23  
24  /**
25   * @author <a href="mailto:jason@maven.org">Jason van Zyl</a>
26   */
27  public class UrlUtils
28  {
29      public static String normalizeUrlPath( String name )
30      {
31          if ( name.startsWith( "/" ) )
32          {
33              name = name.substring( 1 );
34          }
35  
36          // Looking for org/codehaus/werkflow/personality/basic/../common/core-idioms.xml
37          //                                               |    i  |
38          //                                               +-------+ remove
39          //
40          int i = name.indexOf( "/.." );
41  
42          // Can't be at the beginning because we have no root to refer to so
43          // we start at 1.
44          if ( i > 0 )
45          {
46              int j = name.lastIndexOf( "/", i - 1 );
47  
48              if ( j >= 0 )
49              {
50                  name = name.substring( 0, j ) + name.substring( i + 3 );
51              }
52          }
53  
54          return name;
55      }
56  
57      public static Set<URL> getURLs( URLClassLoader loader )
58      {
59          Set<URL> ret = new HashSet<URL>();
60  
61          for ( URL url : loader.getURLs() )
62          {
63              ret.add( url );
64          }
65  
66          return ret;
67      }
68  }