Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
Convert |
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| 2.2222222222222223;2.222 |
1 | /** | |
2 | * Distribution License: | |
3 | * JSword is free software; you can redistribute it and/or modify it under | |
4 | * the terms of the GNU Lesser General Public License, version 2.1 or later | |
5 | * as published by the Free Software Foundation. This program is distributed | |
6 | * in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even | |
7 | * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. | |
8 | * See the GNU Lesser General Public License for more details. | |
9 | * | |
10 | * The License is available on the internet at: | |
11 | * http://www.gnu.org/copyleft/lgpl.html | |
12 | * or by writing to: | |
13 | * Free Software Foundation, Inc. | |
14 | * 59 Temple Place - Suite 330 | |
15 | * Boston, MA 02111-1307, USA | |
16 | * | |
17 | * © CrossWire Bible Society, 2005 - 2016 | |
18 | * | |
19 | */ | |
20 | package org.crosswire.common.util; | |
21 | ||
22 | import java.util.Map; | |
23 | ||
24 | import org.slf4j.LoggerFactory; | |
25 | ||
26 | /** | |
27 | * Conversions between various types and Strings. | |
28 | * | |
29 | * @see gnu.lgpl.License The GNU Lesser General Public License for details. | |
30 | * @author Joe Walker | |
31 | */ | |
32 | 0 | public final class Convert { |
33 | /** | |
34 | * We don't want anyone doing this ... | |
35 | */ | |
36 | 0 | private Convert() { |
37 | 0 | } |
38 | ||
39 | /** | |
40 | * Convert a String to a boolean | |
41 | * | |
42 | * @param data | |
43 | * the thing to convert | |
44 | * @return the converted data | |
45 | */ | |
46 | public static boolean string2Boolean(String data) { | |
47 | 0 | return Boolean.valueOf(data).booleanValue() |
48 | || "yes".equalsIgnoreCase(data) | |
49 | || "ok".equalsIgnoreCase(data) | |
50 | || "okay".equalsIgnoreCase(data) | |
51 | || "on".equalsIgnoreCase(data) | |
52 | || "1".equals(data); | |
53 | } | |
54 | ||
55 | /** | |
56 | * Convert a boolean to a String | |
57 | * | |
58 | * @param data | |
59 | * the thing to convert | |
60 | * @return the converted data | |
61 | */ | |
62 | public static String boolean2String(boolean data) { | |
63 | 0 | return Boolean.toString(data); |
64 | } | |
65 | ||
66 | /** | |
67 | * Convert a String to an int | |
68 | * | |
69 | * @param data | |
70 | * the thing to convert | |
71 | * @return the converted data | |
72 | */ | |
73 | public static int string2Int(String data) { | |
74 | try { | |
75 | 0 | return Integer.parseInt(data); |
76 | 0 | } catch (NumberFormatException ex) { |
77 | 0 | return 0; |
78 | } | |
79 | } | |
80 | ||
81 | /** | |
82 | * Convert an int to a String | |
83 | * | |
84 | * @param data | |
85 | * the thing to convert | |
86 | * @return the converted data | |
87 | */ | |
88 | public static String int2String(int data) { | |
89 | 0 | return Integer.toString(data); |
90 | } | |
91 | ||
92 | /** | |
93 | * Convert a String to an Object | |
94 | * | |
95 | * @param data the thing to convert | |
96 | * @return the converted data | |
97 | * @throws InstantiationException | |
98 | * if this {@code data} represents an abstract class, | |
99 | * an interface, an array class, a primitive type, or void; | |
100 | * or if the class has no nullary constructor; | |
101 | * or if the instantiation fails for some other reason. | |
102 | * @throws ClassNotFoundException if the class is not found | |
103 | * @throws IllegalAccessException if the class or its nullary | |
104 | * constructor is not accessible. | |
105 | */ | |
106 | public static Object string2Object(String data) throws InstantiationException, ClassNotFoundException, IllegalAccessException { | |
107 | 0 | return ClassUtil.forName(data).newInstance(); |
108 | } | |
109 | ||
110 | /** | |
111 | * Convert an Object to a String | |
112 | * | |
113 | * @param data | |
114 | * the thing to convert | |
115 | * @return the converted data | |
116 | */ | |
117 | public static String object2String(Object data) { | |
118 | 0 | return data.getClass().getName(); |
119 | } | |
120 | ||
121 | /** | |
122 | * Convert a String to a Map, without type checking | |
123 | * | |
124 | * @param data | |
125 | * the thing to convert | |
126 | * @return the converted data | |
127 | */ | |
128 | public static PropertyMap string2Map(String data) { | |
129 | 0 | PropertyMap commands = new PropertyMap(); |
130 | ||
131 | 0 | String[] parts = StringUtil.split(data, " "); |
132 | 0 | String entry = ""; |
133 | 0 | for (int i = 0; i < parts.length; i++) { |
134 | try { | |
135 | 0 | entry = parts[i]; |
136 | 0 | int pos = entry.indexOf('='); |
137 | 0 | String key = entry.substring(0, pos); |
138 | 0 | String value = entry.substring(pos + 1); |
139 | 0 | Class<?> clazz = ClassUtil.forName(value); |
140 | ||
141 | 0 | if (clazz.isAssignableFrom(Object.class)) { |
142 | 0 | assert false; |
143 | } else { | |
144 | 0 | commands.put(key, value); |
145 | } | |
146 | 0 | } catch (ClassNotFoundException ex) { |
147 | 0 | log.warn("Invalid config file entry: {} System message: {}", entry, ex.getMessage()); |
148 | 0 | Reporter.informUser(Convert.class, ex); |
149 | 0 | } |
150 | } | |
151 | ||
152 | 0 | return commands; |
153 | } | |
154 | ||
155 | /** | |
156 | * Convert a Map to a Sting | |
157 | * | |
158 | * @param commands | |
159 | * the thing to convert | |
160 | * @return the converted data | |
161 | */ | |
162 | public static String map2String(Map<? extends Object, ? extends Object> commands) { | |
163 | 0 | StringBuilder retcode = new StringBuilder(); |
164 | 0 | for (Map.Entry<? extends Object, ? extends Object> entry : commands.entrySet()) { |
165 | 0 | retcode.append(entry.getKey()); |
166 | 0 | retcode.append('='); |
167 | 0 | retcode.append(entry.getValue()); |
168 | 0 | retcode.append(' '); |
169 | } | |
170 | ||
171 | 0 | return retcode.toString().trim(); |
172 | } | |
173 | ||
174 | /** | |
175 | * The log stream | |
176 | */ | |
177 | 0 | private static final org.slf4j.Logger log = LoggerFactory.getLogger(Convert.class); |
178 | } |