1 /*
2  * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4  *
5  * This code is free software; you can redistribute it and/or modify it
6  * under the terms of the GNU General Public License version 2 only, as
7  * published by the Free Software Foundation.  Oracle designates this
8  * particular file as subject to the "Classpath" exception as provided
9  * by Oracle in the LICENSE file that accompanied this code.
10  *
11  * This code is distributed in the hope that it will be useful, but WITHOUT
12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14  * version 2 for more details (a copy is included in the LICENSE file that
15  * accompanied this code).
16  *
17  * You should have received a copy of the GNU General Public License version
18  * 2 along with this work; if not, write to the Free Software Foundation,
19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20  *
21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22  * or visit www.oracle.com if you need additional information or have any
23  * questions.
24  */
25 
26 package com.sun.xml.internal.bind.v2.schemagen;
27 
28 
29 /**
30  * TODO: JAX-WS dependes on this class - consider moving it somewhere more stable, Notify JAX-WS before modifying anything...
31  *
32  * Other miscellaneous utility methods.
33  *
34  * @author
35  *     Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com)
36  */
37 public final class Util {
Util()38     private Util() {}   // no instanciation please
39 
40     /**
41      * Escape any characters that would cause the single arg constructor
42      * of java.net.URI to complain about illegal chars.
43      *
44      * @param s source string to be escaped
45      */
escapeURI(String s)46     public static String escapeURI(String s) {
47         StringBuilder sb = new StringBuilder();
48         for( int i = 0; i < s.length(); i++ ) {
49             char c = s.charAt(i);
50             if(Character.isSpaceChar(c)) {
51                 sb.append("%20");
52             } else {
53                 sb.append(c);
54             }
55         }
56         return sb.toString();
57     }
58 
59     /**
60      * Calculate the parent URI path of the given URI path.
61      *
62      * @param uriPath the uriPath (as returned by java.net.URI#getPath()
63      * @return the parent URI path of the given URI path
64      */
getParentUriPath(String uriPath)65     public static String getParentUriPath(String uriPath) {
66         int idx = uriPath.lastIndexOf('/');
67 
68         if (uriPath.endsWith("/")) {
69             uriPath = uriPath.substring(0,idx); // trim trailing slash
70             idx = uriPath.lastIndexOf('/'); // move idx to parent context
71         }
72 
73         return uriPath.substring(0, idx)+"/";
74     }
75 
76     /**
77      * Calculate the normalized form of the given uriPath.
78      *
79      * For example:
80      *    /a/b/c/ -> /a/b/c/
81      *    /a/b/c  -> /a/b/
82      *    /a/     -> /a/
83      *    /a      -> /
84      *
85      * @param uriPath path of a URI (as returned by java.net.URI#getPath()
86      * @return the normalized uri path
87      */
normalizeUriPath(String uriPath)88     public static String normalizeUriPath(String uriPath) {
89         if (uriPath.endsWith("/"))
90             return uriPath;
91 
92         // the uri path should always have at least a leading slash,
93         // so no need to make sure that ( idx == -1 )
94         int idx = uriPath.lastIndexOf('/');
95         return uriPath.substring(0, idx+1);
96     }
97 
98     /**
99      * determine if two Strings are equal ignoring case allowing null values
100      *
101      * @param s string 1
102      * @param t string 2
103      * @return true iff the given strings are equal ignoring case, false if they aren't
104      * equal or either of them are null.
105      */
equalsIgnoreCase(String s, String t)106     public static boolean equalsIgnoreCase(String s, String t) {
107         if (s == t) return true;
108         if ((s != null) && (t != null)) {
109             return s.equalsIgnoreCase(t);
110         }
111         return false;
112     }
113 
114     /**
115      * determine if two Strings are iqual allowing null values
116      *
117      * @param s string 1
118      * @param t string 2
119      * @return true iff the strings are equal, false if they aren't equal or either of
120      * them are null.
121      */
equal(String s, String t)122     public static boolean equal(String s, String t) {
123         if (s == t) return true;
124         if ((s != null) && (t != null)) {
125             return s.equals(t);
126         }
127         return false;
128     }
129 }
130