1 | |
|
2 | |
|
3 | |
|
4 | |
|
5 | |
|
6 | |
|
7 | |
|
8 | |
|
9 | |
|
10 | |
|
11 | |
package org.mule.routing.outbound; |
12 | |
|
13 | |
import org.mule.api.MuleException; |
14 | |
import org.mule.api.MuleMessage; |
15 | |
import org.mule.api.MuleSession; |
16 | |
import org.mule.api.config.MuleProperties; |
17 | |
import org.mule.api.endpoint.ImmutableEndpoint; |
18 | |
import org.mule.api.endpoint.InvalidEndpointTypeException; |
19 | |
import org.mule.api.endpoint.OutboundEndpoint; |
20 | |
import org.mule.api.routing.MessageInfoMapping; |
21 | |
import org.mule.api.routing.OutboundRouter; |
22 | |
import org.mule.api.routing.RoutingException; |
23 | |
import org.mule.api.transaction.TransactionCallback; |
24 | |
import org.mule.api.transaction.TransactionConfig; |
25 | |
import org.mule.config.i18n.CoreMessages; |
26 | |
import org.mule.routing.AbstractRouter; |
27 | |
import org.mule.routing.MuleMessageInfoMapping; |
28 | |
import org.mule.transaction.TransactionTemplate; |
29 | |
import org.mule.util.StringMessageUtils; |
30 | |
import org.mule.util.SystemUtils; |
31 | |
|
32 | |
import java.util.Iterator; |
33 | |
import java.util.List; |
34 | |
|
35 | |
import edu.emory.mathcs.backport.java.util.concurrent.CopyOnWriteArrayList; |
36 | |
|
37 | |
import org.apache.commons.logging.Log; |
38 | |
import org.apache.commons.logging.LogFactory; |
39 | |
|
40 | |
|
41 | |
|
42 | |
|
43 | |
|
44 | |
|
45 | 442 | public abstract class AbstractOutboundRouter extends AbstractRouter implements OutboundRouter |
46 | |
{ |
47 | |
public static final int ENABLE_CORRELATION_IF_NOT_SET = 0; |
48 | |
public static final int ENABLE_CORRELATION_ALWAYS = 1; |
49 | |
public static final int ENABLE_CORRELATION_NEVER = 2; |
50 | |
|
51 | |
|
52 | |
|
53 | 442 | protected transient Log logger = LogFactory.getLog(getClass()); |
54 | |
|
55 | 442 | protected List endpoints = new CopyOnWriteArrayList(); |
56 | |
|
57 | 442 | protected String replyTo = null; |
58 | |
|
59 | 442 | protected int enableCorrelation = ENABLE_CORRELATION_IF_NOT_SET; |
60 | |
|
61 | 442 | protected MessageInfoMapping messageInfoMapping = new MuleMessageInfoMapping(); |
62 | |
|
63 | |
protected TransactionConfig transactionConfig; |
64 | |
|
65 | |
public void dispatch(final MuleSession session, final MuleMessage message, final OutboundEndpoint endpoint) throws MuleException |
66 | |
{ |
67 | 42 | setMessageProperties(session, message, endpoint); |
68 | |
|
69 | 42 | if (logger.isDebugEnabled()) |
70 | |
{ |
71 | |
try |
72 | |
{ |
73 | 0 | logger.debug("Message being sent to: " + endpoint.getEndpointURI() + " Message payload: \n" |
74 | |
+ StringMessageUtils.truncate(message.getPayloadAsString(), 100, false) |
75 | |
+ "\n outbound transformer is: " + endpoint.getTransformers()); |
76 | |
} |
77 | 0 | catch (Exception e) |
78 | |
{ |
79 | 0 | logger.debug("Message being sent to: " + endpoint.getEndpointURI() |
80 | |
+ " Message payload: \n(unable to retrieve payload: " + e.getMessage() |
81 | |
+ "\n outbound transformer is: " + endpoint.getTransformers()); |
82 | 0 | } |
83 | |
} |
84 | |
|
85 | 42 | TransactionTemplate tt = createTransactionTemplate(session, endpoint); |
86 | 42 | TransactionCallback cb = new TransactionCallback() |
87 | |
{ |
88 | 42 | public Object doInTransaction() throws Exception |
89 | |
{ |
90 | 42 | session.dispatchEvent(message, endpoint); |
91 | 40 | return null; |
92 | |
} |
93 | |
}; |
94 | |
|
95 | |
try |
96 | |
{ |
97 | 42 | tt.execute(cb); |
98 | |
} |
99 | 2 | catch (Exception e) |
100 | |
{ |
101 | 2 | throw new RoutingException(message, null, e); |
102 | 40 | } |
103 | |
|
104 | |
|
105 | 40 | if (getRouterStatistics() != null) |
106 | |
{ |
107 | 8 | if (getRouterStatistics().isEnabled()) |
108 | |
{ |
109 | 0 | getRouterStatistics().incrementRoutedMessage(endpoint); |
110 | |
} |
111 | |
} |
112 | 40 | } |
113 | |
|
114 | |
public MuleMessage send(final MuleSession session, final MuleMessage message, final OutboundEndpoint endpoint) throws MuleException |
115 | |
{ |
116 | 64 | if (replyTo != null) |
117 | |
{ |
118 | 0 | logger.debug("event was dispatched synchronously, but there is a ReplyTo endpoint set, so using asynchronous dispatch"); |
119 | 0 | dispatch(session, message, endpoint); |
120 | 0 | return null; |
121 | |
} |
122 | |
|
123 | 64 | this.setMessageProperties(session, message, endpoint); |
124 | |
|
125 | 64 | if (logger.isDebugEnabled()) |
126 | |
{ |
127 | 0 | logger.debug("Message being sent to: " + endpoint.getEndpointURI()); |
128 | 0 | logger.debug(message); |
129 | |
} |
130 | |
|
131 | 64 | if (logger.isTraceEnabled()) |
132 | |
{ |
133 | |
try |
134 | |
{ |
135 | 0 | logger.trace("Message payload: \n" + message.getPayloadAsString()); |
136 | |
} |
137 | 0 | catch (Exception e) |
138 | |
{ |
139 | |
|
140 | 0 | } |
141 | |
} |
142 | |
|
143 | 64 | TransactionTemplate tt = createTransactionTemplate(session, endpoint); |
144 | 64 | TransactionCallback cb = new TransactionCallback() |
145 | |
{ |
146 | 64 | public Object doInTransaction() throws Exception |
147 | |
{ |
148 | 64 | return session.sendEvent(message, endpoint); |
149 | |
} |
150 | |
}; |
151 | |
|
152 | |
MuleMessage result; |
153 | |
try |
154 | |
{ |
155 | 64 | result = (MuleMessage) tt.execute(cb); |
156 | |
} |
157 | 6 | catch (Exception e) |
158 | |
{ |
159 | 6 | throw new RoutingException(message, null, e); |
160 | 58 | } |
161 | |
|
162 | 58 | if (getRouterStatistics() != null) |
163 | |
{ |
164 | 0 | if (getRouterStatistics().isEnabled()) |
165 | |
{ |
166 | 0 | getRouterStatistics().incrementRoutedMessage(endpoint); |
167 | |
} |
168 | |
} |
169 | |
|
170 | 58 | if (logger.isDebugEnabled()) |
171 | |
{ |
172 | 0 | logger.debug("Response message from sending to: " + endpoint.getEndpointURI()); |
173 | 0 | logger.debug(result); |
174 | |
} |
175 | |
|
176 | 58 | if (logger.isTraceEnabled()) |
177 | |
{ |
178 | |
try |
179 | |
{ |
180 | 0 | logger.trace("Message payload: \n" + result.getPayloadAsString()); |
181 | |
} |
182 | 0 | catch (Exception e) |
183 | |
{ |
184 | |
|
185 | 0 | } |
186 | |
} |
187 | |
|
188 | 58 | return result; |
189 | |
} |
190 | |
|
191 | |
protected TransactionTemplate createTransactionTemplate(MuleSession session, ImmutableEndpoint endpoint) |
192 | |
{ |
193 | 86 | return new TransactionTemplate(endpoint.getTransactionConfig(), |
194 | |
session.getService().getExceptionListener(), muleContext); |
195 | |
} |
196 | |
|
197 | |
protected void setMessageProperties(MuleSession session, MuleMessage message, OutboundEndpoint endpoint) |
198 | |
{ |
199 | 108 | if (replyTo != null) |
200 | |
{ |
201 | |
|
202 | |
|
203 | 0 | message.setReplyTo(replyTo); |
204 | 0 | message.setProperty(MuleProperties.MULE_REPLY_TO_REQUESTOR_PROPERTY, session.getService().getName()); |
205 | 0 | if (logger.isDebugEnabled()) |
206 | |
{ |
207 | 0 | logger.debug("Setting replyTo=" + replyTo + " for outbound endpoint: " |
208 | |
+ endpoint.getEndpointURI()); |
209 | |
} |
210 | |
} |
211 | 108 | if (enableCorrelation != ENABLE_CORRELATION_NEVER) |
212 | |
{ |
213 | 108 | boolean correlationSet = message.getCorrelationId() != null; |
214 | 108 | if (correlationSet && (enableCorrelation == ENABLE_CORRELATION_IF_NOT_SET)) |
215 | |
{ |
216 | 58 | if (logger.isDebugEnabled()) |
217 | |
{ |
218 | 0 | logger.debug("CorrelationId is already set to '" + message.getCorrelationId() |
219 | |
+ "' , not setting it again"); |
220 | |
} |
221 | 58 | return; |
222 | |
} |
223 | 50 | else if (correlationSet) |
224 | |
{ |
225 | 0 | if (logger.isDebugEnabled()) |
226 | |
{ |
227 | 0 | logger.debug("CorrelationId is already set to '" + message.getCorrelationId() |
228 | |
+ "', but router is configured to overwrite it"); |
229 | |
} |
230 | |
} |
231 | |
else |
232 | |
{ |
233 | 50 | if (logger.isDebugEnabled()) |
234 | |
{ |
235 | 0 | logger.debug("No CorrelationId is set on the message, will set a new Id"); |
236 | |
} |
237 | |
} |
238 | |
|
239 | |
String correlation; |
240 | 50 | correlation = messageInfoMapping.getCorrelationId(message); |
241 | 50 | if (logger.isDebugEnabled()) |
242 | |
{ |
243 | 0 | logger.debug("Extracted correlation Id as: " + correlation); |
244 | |
} |
245 | |
|
246 | 50 | if (logger.isDebugEnabled()) |
247 | |
{ |
248 | 0 | StringBuffer buf = new StringBuffer(); |
249 | 0 | buf.append("Setting Correlation info on Outbound router for endpoint: ").append( |
250 | |
endpoint.getEndpointURI()); |
251 | 0 | buf.append(SystemUtils.LINE_SEPARATOR).append("Id=").append(correlation); |
252 | |
|
253 | |
|
254 | 0 | logger.debug(buf.toString()); |
255 | |
} |
256 | 50 | message.setCorrelationId(correlation); |
257 | |
|
258 | |
|
259 | |
} |
260 | 50 | } |
261 | |
|
262 | |
public List getEndpoints() |
263 | |
{ |
264 | 16 | return endpoints; |
265 | |
} |
266 | |
|
267 | |
public void setEndpoints(List endpoints) |
268 | |
{ |
269 | 38 | this.endpoints.clear(); |
270 | |
|
271 | |
|
272 | |
|
273 | 38 | for (Iterator iterator = endpoints.iterator(); iterator.hasNext();) |
274 | |
{ |
275 | 74 | ImmutableEndpoint umoEndpoint = (ImmutableEndpoint) iterator.next(); |
276 | 74 | if (!(umoEndpoint instanceof OutboundEndpoint)) |
277 | |
{ |
278 | 0 | throw new InvalidEndpointTypeException(CoreMessages.outboundRouterMustUseOutboudEndpoints( |
279 | |
this, umoEndpoint)); |
280 | |
} |
281 | |
else |
282 | |
{ |
283 | 74 | addEndpoint((OutboundEndpoint) umoEndpoint); |
284 | |
} |
285 | 74 | } |
286 | 38 | } |
287 | |
|
288 | |
public void addEndpoint(OutboundEndpoint endpoint) |
289 | |
{ |
290 | 96 | endpoints.add(endpoint); |
291 | 96 | } |
292 | |
|
293 | |
public boolean removeEndpoint(OutboundEndpoint endpoint) |
294 | |
{ |
295 | 0 | return endpoints.remove(endpoint); |
296 | |
} |
297 | |
|
298 | |
public String getReplyTo() |
299 | |
{ |
300 | 0 | return replyTo; |
301 | |
} |
302 | |
|
303 | |
public void setReplyTo(String replyTo) |
304 | |
{ |
305 | 0 | this.replyTo = replyTo; |
306 | 0 | } |
307 | |
|
308 | |
public int getEnableCorrelation() |
309 | |
{ |
310 | 0 | return enableCorrelation; |
311 | |
} |
312 | |
|
313 | |
public void setEnableCorrelation(int enableCorrelation) |
314 | |
{ |
315 | 0 | this.enableCorrelation = enableCorrelation; |
316 | 0 | } |
317 | |
|
318 | |
public void setEnableCorrelationAsString(String enableCorrelation) |
319 | |
{ |
320 | 0 | if (enableCorrelation != null) |
321 | |
{ |
322 | 0 | if (enableCorrelation.equals("ALWAYS")) |
323 | |
{ |
324 | 0 | this.enableCorrelation = ENABLE_CORRELATION_ALWAYS; |
325 | |
} |
326 | 0 | else if (enableCorrelation.equals("NEVER")) |
327 | |
{ |
328 | 0 | this.enableCorrelation = ENABLE_CORRELATION_NEVER; |
329 | |
} |
330 | 0 | else if (enableCorrelation.equals("IF_NOT_SET")) |
331 | |
{ |
332 | 0 | this.enableCorrelation = ENABLE_CORRELATION_IF_NOT_SET; |
333 | |
} |
334 | |
else |
335 | |
{ |
336 | 0 | throw new IllegalArgumentException("Value for enableCorrelation not recognised: " |
337 | |
+ enableCorrelation); |
338 | |
} |
339 | |
} |
340 | 0 | } |
341 | |
|
342 | |
public MessageInfoMapping getMessageInfoMapping() |
343 | |
{ |
344 | 0 | return messageInfoMapping; |
345 | |
} |
346 | |
|
347 | |
public void setMessageInfoMapping(MessageInfoMapping messageInfoMapping) |
348 | |
{ |
349 | 0 | this.messageInfoMapping = messageInfoMapping; |
350 | 0 | } |
351 | |
|
352 | |
public TransactionConfig getTransactionConfig() |
353 | |
{ |
354 | 16 | return transactionConfig; |
355 | |
} |
356 | |
|
357 | |
public void setTransactionConfig(TransactionConfig transactionConfig) |
358 | |
{ |
359 | 0 | this.transactionConfig = transactionConfig; |
360 | 0 | } |
361 | |
|
362 | |
public boolean isDynamicEndpoints() |
363 | |
{ |
364 | 0 | return false; |
365 | |
} |
366 | |
|
367 | |
|
368 | |
|
369 | |
|
370 | |
|
371 | |
|
372 | |
public OutboundEndpoint getEndpoint(String name) |
373 | |
{ |
374 | |
OutboundEndpoint endpointDescriptor; |
375 | 0 | for (Iterator iterator = endpoints.iterator(); iterator.hasNext();) |
376 | |
{ |
377 | 0 | endpointDescriptor = (OutboundEndpoint) iterator.next(); |
378 | 0 | if (endpointDescriptor.getName().equals(name)) |
379 | |
{ |
380 | 0 | return endpointDescriptor; |
381 | |
} |
382 | |
} |
383 | 0 | return null; |
384 | |
} |
385 | |
} |