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1
48
49 package org.exolab.jms.message;
50
51 import java.io.Externalizable  ;
52 import java.io.IOException ;
53 import java.io.ObjectInput ;
54 import java.io.ObjectOutput ;
55 import java.util.Collections ;
56 import java.util.Enumeration ;
57 import java.util.HashMap ;
58
59 import javax.jms.JMSException ;
60 import javax.jms.MessageFormatException ;
61
62
63
70 class MessageProperties implements Cloneable , Externalizable {
71
72
75 private HashMap _properties = new HashMap (20);
76
77
80 static final long serialVersionUID = 1;
81
82
85 private static final String [] RESERVED_WORDS = {
86 "and", "between", "escape", "in", "is", "like", "false", "null", "or",
87 "not", "true"};
88
89 private static final String GROUP_ID = "JMSXGroupID";
90 private static final String GROUP_SEQ = "JMSXGroupSeq";
91
92
96 private static final Object [][] JMSX_CLIENT_NAMES = {
97 {GROUP_ID, String .class},
98 {GROUP_SEQ, Integer .class}};
99
100
103 public MessageProperties() {
104 }
105
106
112 public Object clone() throws CloneNotSupportedException {
113 MessageProperties result = new MessageProperties();
114 result._properties = (HashMap ) _properties.clone();
115 return result;
116 }
117
118
125 public void writeExternal(ObjectOutput out) throws IOException {
126 out.writeLong(serialVersionUID);
127 out.writeObject(_properties);
128 }
129
130
139 public void readExternal(ObjectInput in)
140 throws IOException , ClassNotFoundException {
141 long version = in.readLong();
142 if (version == serialVersionUID) {
143 _properties = (HashMap ) in.readObject();
144 } else {
145 throw new IOException ("Incorrect version enountered: " +
146 version + " This version = " +
147 serialVersionUID);
148 }
149 }
150
151
154 public void clearProperties() {
155 _properties.clear();
156 }
157
158 public boolean propertyExists(String name) {
159 return _properties.containsKey(name);
160 }
161
162 public boolean getBooleanProperty(String name) throws JMSException {
163 return FormatConverter.getBoolean(_properties.get(name));
164 }
165
166 public byte getByteProperty(String name) throws JMSException {
167 return FormatConverter.getByte(_properties.get(name));
168 }
169
170 public short getShortProperty(String name) throws JMSException {
171 return FormatConverter.getShort(_properties.get(name));
172 }
173
174 public int getIntProperty(String name) throws JMSException {
175 return FormatConverter.getInt(_properties.get(name));
176 }
177
178 public long getLongProperty(String name) throws JMSException {
179 return FormatConverter.getLong(_properties.get(name));
180 }
181
182 public float getFloatProperty(String name) throws JMSException {
183 return FormatConverter.getFloat(_properties.get(name));
184 }
185
186 public double getDoubleProperty(String name) throws JMSException {
187 return FormatConverter.getDouble(_properties.get(name));
188 }
189
190 public String getStringProperty(String name) throws JMSException {
191 return FormatConverter.getString(_properties.get(name));
192 }
193
194 public Object getObjectProperty(String name) throws JMSException {
195 return _properties.get(name);
196 }
197
198 public Enumeration getPropertyNames() {
199 return Collections.enumeration(_properties.keySet());
200 }
201
202 public void setBooleanProperty(String name, boolean value)
203 throws JMSException {
204 setProperty(name, new Boolean (value));
205 }
206
207 public void setByteProperty(String name, byte value) throws JMSException {
208 setProperty(name, new Byte (value));
209 }
210
211 public void setShortProperty(String name, short value)
212 throws JMSException {
213 setProperty(name, new Short (value));
214 }
215
216 public void setIntProperty(String name, int value) throws JMSException {
217 setProperty(name, new Integer (value));
218 }
219
220 public void setLongProperty(String name, long value) throws JMSException {
221 setProperty(name, new Long (value));
222 }
223
224 public void setFloatProperty(String name, float value)
225 throws JMSException {
226 setProperty(name, new Float (value));
227 }
228
229 public void setDoubleProperty(String name, double value)
230 throws JMSException {
231 setProperty(name, new Double (value));
232 }
233
234 public void setStringProperty(String name, String value)
235 throws JMSException {
236 setProperty(name, value);
237 }
238
239 public void setObjectProperty(String name, Object value)
240 throws JMSException {
241 if (value instanceof Boolean || value instanceof Byte ||
242 value instanceof Short || value instanceof Integer ||
243 value instanceof Long || value instanceof Float ||
244 value instanceof Double || value instanceof String ||
245 (value == null)) {
246 setProperty(name, value);
247 } else {
248 throw new MessageFormatException (
249 "Message.setObjectProperty() does not support objects of " +
250 "type=" + value.getClass().getName());
251 }
252 }
253
254 public void setJMSXRcvTimestamp(long value) {
255 _properties.put("JMSXRcvTimestamp", new Long (value));
256 }
257
258 protected void setProperty(String name, Object value) throws JMSException {
259 if (name == null) {
260 throw new JMSException ("<null> is not a valid property name");
261 }
262 char[] chars = name.toCharArray();
263 if (chars.length == 0) {
264 throw new JMSException ("zero-length name is not a valid " +
265 "property name");
266 }
267 if (!Character.isJavaIdentifierStart(chars[0])) {
268 throw new JMSException ("name=" + name + " is not a valid " +
269 "property name");
270 }
271 for (int i = 1; i < chars.length; ++i) {
272 if (!Character.isJavaIdentifierPart(chars[i])) {
273 throw new JMSException ("name=" + name + " is not a valid " +
274 "property name");
275 }
276 }
277 for (int i = 0; i < RESERVED_WORDS.length; ++i) {
278 if (name.equalsIgnoreCase(RESERVED_WORDS[i])) {
279 throw new JMSException ("name=" + name + " is a reserved " +
280 "word; it cannot be used as a " +
281 "property name");
282 }
283 }
284
285 if (name.startsWith("JMSX")) {
286 boolean found = false;
287 for (int i = 0; i < JMSX_CLIENT_NAMES.length; ++i) {
288 Object [] types = JMSX_CLIENT_NAMES[i];
289 if (types[0].equals(name)) {
290 if (value == null) {
291 throw new MessageFormatException ("Property=" + name +
292 " may not be null");
293 }
294 Class type = (Class ) types[1];
295 if (!type.equals(value.getClass())) {
296 throw new MessageFormatException (
297 "Expected type=" + type.getName() +
298 " for property=" + name + ", but got type=" +
299 value.getClass().getName());
300 }
301 if (name.equals(GROUP_SEQ) &&
302 ((Integer ) value).intValue() <= 0) {
303 throw new JMSException (
304 GROUP_SEQ + " must have a value > 0");
305 }
306 found = true;
307 break;
308 }
309 }
310 if (!found) {
311 throw new JMSException ("Property=" + name +
312 " cannot be set by clients");
313 }
314 }
315
316 _properties.put(name, value);
317 }
318
319 } |
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