Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
UrlUtils |
|
| 4.0;4 |
1 | package org.codehaus.mojo.exec; | |
2 | ||
3 | /* | |
4 | * Licensed to the Apache Software Foundation (ASF) under one | |
5 | * or more contributor license agreements. See the NOTICE file | |
6 | * distributed with this work for additional information | |
7 | * regarding copyright ownership. The ASF licenses this file | |
8 | * to you under the Apache License, Version 2.0 (the | |
9 | * "License"); you may not use this file except in compliance | |
10 | * with the License. You may obtain a copy of the License at | |
11 | * | |
12 | * http://www.apache.org/licenses/LICENSE-2.0 | |
13 | * | |
14 | * Unless required by applicable law or agreed to in writing, | |
15 | * software distributed under the License is distributed on an | |
16 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | |
17 | * KIND, either express or implied. See the License for the | |
18 | * specific language governing permissions and limitations | |
19 | * under the License. | |
20 | */ | |
21 | ||
22 | import java.io.File; | |
23 | import java.io.UnsupportedEncodingException; | |
24 | import java.net.MalformedURLException; | |
25 | import java.net.URL; | |
26 | import java.util.BitSet; | |
27 | ||
28 | /** | |
29 | * Utility for dealing with URLs in pre-JDK 1.4. | |
30 | */ | |
31 | public class UrlUtils | |
32 | { | |
33 | 0 | private static final BitSet UNRESERVED = new BitSet( Byte.MAX_VALUE - Byte.MIN_VALUE + 1 ); |
34 | ||
35 | private static final int RADIX = 16; | |
36 | ||
37 | private static final int MASK = 0xf; | |
38 | ||
39 | private UrlUtils() | |
40 | 0 | { |
41 | 0 | } |
42 | ||
43 | private static final String ENCODING = "UTF-8"; | |
44 | ||
45 | static | |
46 | { | |
47 | try | |
48 | { | |
49 | 0 | byte[] bytes = |
50 | "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-_.!~*'():/".getBytes( ENCODING ); | |
51 | 0 | for ( int i = 0; i < bytes.length; i++ ) |
52 | { | |
53 | 0 | UNRESERVED.set( bytes[i] ); |
54 | } | |
55 | } | |
56 | 0 | catch ( UnsupportedEncodingException e ) |
57 | { | |
58 | // can't happen as UTF-8 must be present | |
59 | 0 | } |
60 | 0 | } |
61 | ||
62 | public static URL getURL( File file ) | |
63 | throws MalformedURLException | |
64 | { | |
65 | // with JDK 1.4+, code would be: return new URL( file.toURI().toASCIIString() ); | |
66 | 0 | URL url = file.toURL(); |
67 | // encode any characters that do not comply with RFC 2396 | |
68 | // this is primarily to handle Windows where the user's home directory contains spaces | |
69 | try | |
70 | { | |
71 | 0 | byte[] bytes = url.toString().getBytes( ENCODING ); |
72 | 0 | StringBuffer buf = new StringBuffer( bytes.length ); |
73 | 0 | for ( int i = 0; i < bytes.length; i++ ) |
74 | { | |
75 | 0 | byte b = bytes[i]; |
76 | 0 | if ( b > 0 && UNRESERVED.get( b ) ) |
77 | { | |
78 | 0 | buf.append( (char) b ); |
79 | } | |
80 | else | |
81 | { | |
82 | 0 | buf.append( '%' ); |
83 | 0 | buf.append( Character.forDigit( b >>> 4 & MASK, RADIX ) ); |
84 | 0 | buf.append( Character.forDigit( b & MASK, RADIX ) ); |
85 | } | |
86 | } | |
87 | 0 | return new URL( buf.toString() ); |
88 | } | |
89 | 0 | catch ( UnsupportedEncodingException e ) |
90 | { | |
91 | // should not happen as UTF-8 must be present | |
92 | 0 | throw new RuntimeException( e ); |
93 | } | |
94 | } | |
95 | } |