Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
StringUtils |
|
| 2.1;2.1 |
1 | /******************************************************************************* | |
2 | * Copyright (c) 2008 Ketan Padegaonkar and others. | |
3 | * All rights reserved. This program and the accompanying materials | |
4 | * are made available under the terms of the Eclipse Public License v1.0 | |
5 | * which accompanies this distribution, and is available at | |
6 | * http://www.eclipse.org/legal/epl-v10.html | |
7 | * | |
8 | * Contributors: | |
9 | * Ketan Padegaonkar - initial API and implementation | |
10 | *******************************************************************************/ | |
11 | package org.eclipse.swtbot.swt.finder.utils; | |
12 | ||
13 | import java.util.ArrayList; | |
14 | import java.util.Collection; | |
15 | ||
16 | import org.eclipse.swtbot.swt.finder.utils.internal.Assert; | |
17 | ||
18 | /** | |
19 | * A set of utilities for string manipulation. | |
20 | * | |
21 | * @author Ketan Padegaonkar <KetanPadegaonkar [at] gmail [dot] com> | |
22 | * @version $Id$ | |
23 | * @since 1.0 | |
24 | */ | |
25 | 0 | public class StringUtils { |
26 | ||
27 | /** | |
28 | * Joins an array of objects using the given delimiter as spacing. | |
29 | * | |
30 | * @param toJoin the objects to join into a string. | |
31 | * @param delimiter the delimiter used to join the objects. | |
32 | * @return the result of joining the <code>toJoin</code> with <code>delimiter</code>. | |
33 | */ | |
34 | public static String join(Object[] toJoin, String delimiter) { | |
35 | 29 | if ((toJoin == null) || (toJoin.length == 0)) |
36 | 0 | return ""; //$NON-NLS-1$ |
37 | 29 | Assert.isTrue(!isEmptyOrNull(delimiter)); |
38 | 29 | StringBuffer result = new StringBuffer(); |
39 | ||
40 | 80 | for (Object object : toJoin) { |
41 | 51 | result.append(object); |
42 | 51 | result.append(delimiter); |
43 | } | |
44 | ||
45 | 29 | result.lastIndexOf(delimiter); |
46 | 29 | result.replace(result.length() - delimiter.length(), result.length(), ""); //$NON-NLS-1$ |
47 | 29 | return result.toString(); |
48 | } | |
49 | ||
50 | /** | |
51 | * Joins an array of objects using the given delimiter as spacing. | |
52 | * | |
53 | * @param toJoin the objects to join into a string. | |
54 | * @param delimiter the delimiter used to join the objects. | |
55 | * @param converter the converter that can convert objects in the collection into strings. | |
56 | * @return the result of joining the <code>toJoin</code> with <code>delimiter</code>. | |
57 | */ | |
58 | public static String join(Object[] toJoin, String delimiter, StringConverter converter) { | |
59 | 1 | if ((toJoin == null) || (toJoin.length == 0)) |
60 | 0 | return ""; //$NON-NLS-1$ |
61 | 1 | Assert.isTrue(!isEmptyOrNull(delimiter)); |
62 | ||
63 | 1 | ArrayList<Object> convertedObjects = new ArrayList<Object>(); |
64 | 4 | for (Object object : toJoin) { |
65 | 3 | convertedObjects.add(converter.toString(object)); |
66 | } | |
67 | ||
68 | 1 | return join(convertedObjects, delimiter); |
69 | } | |
70 | ||
71 | /** | |
72 | * Joins a collection of objects using the given delimiter as spacing. | |
73 | * | |
74 | * @param toJoin the objects to join into a string. | |
75 | * @param delimiter the delimiter used to join the objects. | |
76 | * @return the result of joining the <code>toJoin</code> with <code>delimiter</code>. | |
77 | */ | |
78 | public static String join(Collection<?> toJoin, String delimiter) { | |
79 | 1 | return join(toJoin.toArray(), delimiter); |
80 | } | |
81 | ||
82 | /** | |
83 | * Joins a collection of objects using the given delimiter as spacing. | |
84 | * | |
85 | * @param toJoin the objects to join into a string. | |
86 | * @param delimiter the delimiter used to join the objects. | |
87 | * @param converter the converter that can convert objects in the collection into strings. | |
88 | * @return the result of joining the <code>toJoin</code> with <code>delimiter</code>. | |
89 | */ | |
90 | public static String join(Collection<?> toJoin, String delimiter, StringConverter converter) { | |
91 | 0 | return join(toJoin.toArray(), delimiter, converter); |
92 | } | |
93 | ||
94 | /** | |
95 | * Checks if the given string is <code>null</code> or empty. | |
96 | * | |
97 | * @param string the string. | |
98 | * @return <code>true</code> if string is null, blank or whitespaces. <code>false</code> otherwise. | |
99 | */ | |
100 | public static boolean isEmptyOrNull(String string) { | |
101 | 38 | return isNull(string) || isEmpty(string); |
102 | } | |
103 | ||
104 | /** | |
105 | * Joins the given integer array with the given delimiter. | |
106 | * | |
107 | * @param toJoin the integers to join into a string. | |
108 | * @param delimiter the delimiter. | |
109 | * @return the result of joining the <code>toJoin</code> with <code>delimiter</code>. | |
110 | */ | |
111 | public static String join(int[] toJoin, String delimiter) { | |
112 | 15 | Integer[] ints = new Integer[toJoin.length]; |
113 | 38 | for (int i = 0; i < toJoin.length; i++) |
114 | 23 | ints[i] = new Integer(toJoin[i]); |
115 | 15 | return join(ints, delimiter); |
116 | } | |
117 | ||
118 | /** | |
119 | * @param text the text. | |
120 | * @return <code>true</code> if the text is empty, <code>false</code> otherwise. | |
121 | * @since 1.3 | |
122 | */ | |
123 | public static boolean isEmpty(String text) { | |
124 | 38 | return text.trim().equals(""); //$NON-NLS-1$ |
125 | } | |
126 | ||
127 | /** | |
128 | * @param text the text. | |
129 | * @return <code>true</code> if the text is null, <code>false</code> otherwise. | |
130 | * @since 1.3 | |
131 | */ | |
132 | public static boolean isNull(String text) { | |
133 | 38 | return text == null; |
134 | } | |
135 | ||
136 | /** | |
137 | * Converts the string to camelcase. Strings are of the format: THIS_IS_A_STRING, and the result of camel casing | |
138 | * would be thisIsAString. | |
139 | * | |
140 | * @param string the string to be camelcased. | |
141 | * @return the camel cased string. | |
142 | * @since 2.0 | |
143 | */ | |
144 | public static String toCamelCase(String string) { | |
145 | 9 | StringBuffer result = new StringBuffer(string); |
146 | 19 | while (result.indexOf("_") != -1) { //$NON-NLS-1$ |
147 | 1 | int indexOf = result.indexOf("_"); //$NON-NLS-1$ |
148 | 1 | result.replace(indexOf, indexOf + 2, "" + Character.toUpperCase(result.charAt(indexOf + 1))); //$NON-NLS-1$ |
149 | } | |
150 | 9 | return result.toString(); |
151 | } | |
152 | ||
153 | /** | |
154 | * Converts the string to capitalized. Strings are of the format: THIS_IS_A_STRING, and the result of capitalization | |
155 | * would be ThisIsAString. | |
156 | * | |
157 | * @param string the string to capitalize. | |
158 | * @return the capitalized string. | |
159 | * @since 2.0 | |
160 | */ | |
161 | public static String capitalize(String string) { | |
162 | 2 | StringBuffer result = new StringBuffer(toCamelCase(string)); |
163 | 2 | result.replace(0, 1, "" + Character.toUpperCase(result.charAt(0))); //$NON-NLS-1$ |
164 | 2 | return result.toString(); |
165 | } | |
166 | ||
167 | } |