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1
48
49 package org.exolab.jms.message;
50
51
53 import javax.jms.JMSException  ;
54 import javax.jms.MessageFormatException ;
55
56
57
89 class FormatConverter {
90
91
98 public static boolean getBoolean(Object value)
99 throws MessageFormatException {
100 boolean result = false;
101
102 if (value instanceof Boolean ) {
103 result = ((Boolean ) value).booleanValue();
104 } else if (value instanceof String ) {
105 result = Boolean.valueOf((String ) value).booleanValue();
106 } else if (value == null) {
107 result = Boolean.valueOf((String ) value).booleanValue();
108 } else {
109 raise(value, boolean.class);
110 }
111 return result;
112 }
113
114
123 public static byte getByte(Object value) throws MessageFormatException {
124 byte result = 0;
125
126 if (value instanceof Byte ) {
127 result = ((Byte ) value).byteValue();
128 } else if (value instanceof String ) {
129 result = Byte.parseByte((String ) value);
130 } else if (value == null) {
131 result = Byte.valueOf((String ) value).byteValue();
132 } else {
133 raise(value, byte.class);
134 }
135 return result;
136 }
137
138
139
148 public static short getShort(Object value) throws MessageFormatException {
149 short result = 0;
150
151 if (value instanceof Short ) {
152 result = ((Short ) value).shortValue();
153 } else if (value instanceof Byte ) {
154 result = ((Byte ) value).shortValue();
155 } else if (value instanceof String ) {
156 result = Short.parseShort((String ) value);
157 } else if (value == null) {
158 result = Short.valueOf((String ) value).shortValue();
159 } else {
160 raise(value, short.class);
161 }
162 return result;
163 }
164
165
173 public static char getChar(Object value) throws MessageFormatException {
174 char result = '\0';
175 if (value instanceof Character ) {
176 result = ((Character ) value).charValue();
177 } else if (value == null) {
178 throw new NullPointerException (
179 "Cannot convert null value to char");
180 } else {
181 raise(value, char.class);
182 }
183 return result;
184 }
185
186
195 public static int getInt(Object value) throws MessageFormatException {
196 int result = 0;
197
198 if (value instanceof Integer ) {
199 result = ((Integer ) value).intValue();
200 } else if (value instanceof Short ) {
201 result = ((Short ) value).intValue();
202 } else if (value instanceof Byte ) {
203 result = ((Byte ) value).intValue();
204 } else if (value instanceof String ) {
205 result = Integer.parseInt((String ) value);
206 } else if (value == null) {
207 result = Integer.valueOf((String ) value).intValue();
208 } else {
209 raise(value, int.class);
210 }
211 return result;
212 }
213
214
215
224 public static long getLong(Object value) throws MessageFormatException {
225 long result = 0;
226
227 if (value instanceof Long ) {
228 result = ((Long ) value).longValue();
229 } else if (value instanceof Integer ) {
230 result = ((Integer ) value).longValue();
231 } else if (value instanceof Short ) {
232 result = ((Short ) value).longValue();
233 } else if (value instanceof Byte ) {
234 result = ((Byte ) value).longValue();
235 } else if (value instanceof String ) {
236 result = Long.parseLong((String ) value);
237 } else if (value == null) {
238 result = Long.valueOf((String ) value).longValue();
239 } else {
240 raise(value, long.class);
241 }
242 return result;
243 }
244
245
254 public static float getFloat(Object value) throws MessageFormatException {
255 float result = 0;
256
257 if (value instanceof Float ) {
258 result = ((Float ) value).floatValue();
259 } else if (value instanceof String ) {
260 result = Float.parseFloat((String ) value);
261 } else if (value == null) {
262 result = Float.valueOf((String ) value).floatValue();
263 } else {
264 raise(value, float.class);
265 }
266 return result;
267 }
268
269
278 public static double getDouble(Object value)
279 throws MessageFormatException {
280 double result = 0;
281
282 if (value instanceof Double ) {
283 result = ((Double ) value).doubleValue();
284 } else if (value instanceof Float ) {
285 result = ((Float ) value).doubleValue();
286 } else if (value instanceof String ) {
287 result = Double.parseDouble((String ) value);
288 } else if (value == null) {
289 result = Double.valueOf((String ) value).doubleValue();
290 } else {
291 raise(value, double.class);
292 }
293 return result;
294 }
295
296
303 public static String getString(Object value)
304 throws MessageFormatException {
305 if (value instanceof byte[]) {
306 raise(value, String .class);
307 }
308 return (value == null) ? null : String.valueOf(value);
309 }
310
311
320 public static byte[] getBytes(Object value)
321 throws MessageFormatException {
322 byte[] result = null;
323
324 if (value instanceof byte[]) {
325 byte[] bytes = (byte[]) value;
326 result = new byte[bytes.length];
327 System.arraycopy(bytes, 0, result, 0, bytes.length);
328 } else if (value != null) {
329 raise(value, byte[].class);
330 }
331 return result;
332 }
333
334
342 private static void raise(Object value, Class type)
343 throws MessageFormatException {
344
345 throw new MessageFormatException (
346 "Cannot convert values of type " + value.getClass().getName() +
347 " to " + type.getName());
348 }
349
350 } |
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