Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
Utils |
|
| 0.0;0 |
1 | /* | |
2 | * FCKeditor - The text editor for Internet - http://www.fckeditor.net | |
3 | * Copyright (C) 2003-2008 Frederico Caldeira Knabben | |
4 | * | |
5 | * == BEGIN LICENSE == | |
6 | * | |
7 | * Licensed under the terms of any of the following licenses at your | |
8 | * choice: | |
9 | * | |
10 | * - GNU General Public License Version 2 or later (the "GPL") | |
11 | * http://www.gnu.org/licenses/gpl.html | |
12 | * | |
13 | * - GNU Lesser General Public License Version 2.1 or later (the "LGPL") | |
14 | * http://www.gnu.org/licenses/lgpl.html | |
15 | * | |
16 | * - Mozilla Public License Version 1.1 or later (the "MPL") | |
17 | * http://www.mozilla.org/MPL/MPL-1.1.html | |
18 | * | |
19 | * == END LICENSE == | |
20 | */ | |
21 | package net.fckeditor.tool; | |
22 | ||
23 | import java.util.HashSet; | |
24 | import java.util.Set; | |
25 | import java.util.StringTokenizer; | |
26 | ||
27 | /** | |
28 | * Some static helper methods. | |
29 | * | |
30 | * @version $Id: Utils.java 2538 2008-10-10 18:27:19Z mosipov $ | |
31 | */ | |
32 | 0 | public class Utils { |
33 | ||
34 | /** | |
35 | * Constructs a set of uppercased strings from a delimiter-separated string. | |
36 | * | |
37 | * @param stringList | |
38 | * @param delimiter | |
39 | * The delimiter. | |
40 | * @return An emtpy list if 'stringList' is empty else a lowercased set of | |
41 | * strings. | |
42 | * @throws IllegalArgumentException | |
43 | * if 'delimiter' is empty. | |
44 | */ | |
45 | public static Set<String> getSet(final String stringList, | |
46 | final String delimiter) { | |
47 | 15 | if (isEmpty(delimiter)) |
48 | 0 | throw new IllegalArgumentException( |
49 | "Argument 'delimiter' shouldn't be empty!"); | |
50 | 15 | if (isEmpty(stringList)) |
51 | 6 | return new HashSet<String>(); |
52 | ||
53 | 9 | Set<String> set = new HashSet<String>(); |
54 | 9 | StringTokenizer st = new StringTokenizer(stringList, delimiter); |
55 | 106 | while (st.hasMoreTokens()) { |
56 | 97 | String tmp = st.nextToken(); |
57 | 97 | if (isNotEmpty(tmp)) // simple empty filter |
58 | 97 | set.add(tmp.toLowerCase()); |
59 | 97 | } |
60 | 9 | return set; |
61 | } | |
62 | ||
63 | /** | |
64 | * Just a wrapper to {@link #getSet(String, String)} for using '|' as | |
65 | * delimiter. | |
66 | */ | |
67 | public static Set<String> getSet(final String stringList) { | |
68 | 14 | return getSet(stringList, "|"); |
69 | } | |
70 | ||
71 | /** | |
72 | * Checks if a string is <code>null</code> or empty. | |
73 | * | |
74 | * @param str | |
75 | * to check | |
76 | * @return <code>true</code> if the string is <code>null</code> or | |
77 | * empty. | |
78 | */ | |
79 | public static boolean isEmpty(final String str) { | |
80 | 215 | return str == null || str.length() == 0; |
81 | } | |
82 | ||
83 | /** | |
84 | * Just a wrapper to {@link #isEmpty(String)}. | |
85 | * | |
86 | * @param str | |
87 | * to ckeck | |
88 | * @return <code>true</code> if the String is not empty or not | |
89 | * <code>null</code>. | |
90 | */ | |
91 | public static boolean isNotEmpty(final String str) { | |
92 | 102 | return !isEmpty(str); |
93 | } | |
94 | ||
95 | /** | |
96 | * Checks if a String is whitespace, empty or null. | |
97 | * | |
98 | * @param str | |
99 | * to check | |
100 | * @return <code>true</code> if the string is <code>null</code>, empty | |
101 | * or contains whitespace only. | |
102 | */ | |
103 | public static boolean isBlank(final String str) { | |
104 | ||
105 | 12 | if (isEmpty(str)) |
106 | 4 | return true; |
107 | ||
108 | 34 | for (char c : str.toCharArray()) { |
109 | 30 | if (!Character.isWhitespace(c)) |
110 | 4 | return false; |
111 | } | |
112 | ||
113 | 4 | return true; |
114 | } | |
115 | ||
116 | /** | |
117 | * Just a wrapper to {@link #isBlank(String)}. | |
118 | * | |
119 | * @param str | |
120 | * to check | |
121 | * @return <code>true</code> if the string is not <code>null</code>, | |
122 | * not empty or does not contain whitespace only. | |
123 | */ | |
124 | public static boolean isNotBlank(final String str) { | |
125 | 6 | return !isBlank(str); |
126 | } | |
127 | } |