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1
24 package org.objectweb.joram.shared.messages;
25
26 import org.objectweb.joram.shared.excepts.MessageValueException;
27
28
32 public class ConversionHelper
33 {
34
40 public static boolean toBoolean(Object  value) throws MessageValueException
41 {
42 if (value == null)
43 return Boolean.valueOf(null).booleanValue();
44
45 if (value instanceof Boolean )
46 return ((Boolean ) value).booleanValue();
47 else if (value instanceof String )
48 return Boolean.valueOf((String ) value).booleanValue();
49 else
50 throw new MessageValueException("Type " + value.getClass().getName()
51 + " can't be converted to Boolean.");
52 }
53
54
60 public static byte toByte(Object value) throws MessageValueException
61 {
62 if (value == null)
63 return Byte.valueOf(null).byteValue();
64
65 if (value instanceof Byte )
66 return ((Byte ) value).byteValue();
67 else if (value instanceof String )
68 return Byte.valueOf((String ) value).byteValue();
69 else
70 throw new MessageValueException("Type " + value.getClass().getName()
71 + " can't be converted to Byte.");
72 }
73
74
80 public static short toShort(Object value) throws MessageValueException
81 {
82 if (value == null)
83 return Short.valueOf(null).shortValue();
84
85 if (value instanceof Byte || value instanceof Short )
86 return ((Number ) value).shortValue();
87 else if (value instanceof String )
88 return Short.valueOf((String ) value).shortValue();
89 else
90 throw new MessageValueException("Type " + value.getClass().getName()
91 + " can't be converted to Short.");
92 }
93
94
100 public static int toInt(Object value) throws MessageValueException
101 {
102 if (value == null)
103 return Integer.valueOf(null).intValue();
104
105 if (value instanceof Byte || value instanceof Short
106 || value instanceof Integer )
107 return ((Number ) value).intValue();
108 else if (value instanceof String )
109 return Integer.valueOf((String ) value).intValue();
110 else
111 throw new MessageValueException("Type " + value.getClass().getName()
112 + " can't be converted to Integer.");
113 }
114
115
121 public static long toLong(Object value) throws MessageValueException
122 {
123 if (value == null)
124 return Long.valueOf(null).longValue();
125
126 if (value instanceof Byte || value instanceof Short
127 || value instanceof Integer || value instanceof Long )
128 return ((Number ) value).longValue();
129 else if (value instanceof String )
130 return Long.valueOf((String ) value).longValue();
131 else
132 throw new MessageValueException("Type " + value.getClass().getName()
133 + " can't be converted to Long.");
134 }
135
136
142 public static float toFloat(Object value) throws MessageValueException
143 {
144 if (value == null)
145 return Float.valueOf(null).floatValue();
146
147 if (value instanceof Float )
148 return ((Float ) value).floatValue();
149 else if (value instanceof String )
150 return Float.valueOf((String ) value).floatValue();
151 else
152 throw new MessageValueException("Type " + value.getClass().getName()
153 + " can't be converted to Float.");
154 }
155
156
162 public static double toDouble(Object value) throws MessageValueException
163 {
164 if (value == null)
165 return Double.valueOf(null).doubleValue();
166
167 if (value instanceof Float || value instanceof Double )
168 return ((Number ) value).doubleValue();
169 else if (value instanceof String )
170 return Double.valueOf((String ) value).doubleValue();
171 else
172 throw new MessageValueException("Type " + value.getClass().getName()
173 + " can't be converted to Double.");
174 }
175
176
177 public static String toString(Object value)
178 {
179 if (value == null)
180 return null;
181
182 if (value instanceof byte[])
183 return new String ((byte[]) value);
184 else
185 return value.toString();
186 }
187
188
194 public static char toChar(Object value) throws MessageValueException
195 {
196 if (value == null)
197 return ((Character ) null).charValue();
198 else if (value instanceof Character )
199 return ((Character ) value).charValue();
200 else
201 throw new MessageValueException("Type " + value.getClass().getName()
202 + " can't be converted to Character.");
203 }
204
205
211 public static byte[] toBytes(Object value) throws MessageValueException
212 {
213 if (value == null)
214 return (byte[]) value;
215 else if (value instanceof byte[])
216 return (byte[]) value;
217 else
218 throw new MessageValueException("Type " + value.getClass().getName()
219 + " can't be converted to byte[].");
220 }
221 }
222 |
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