Source Code Cross Referenced for JmsServiceEngine.java in  » ERP-CRM-Financial » ofbiz » org » ofbiz » service » jms » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » ERP CRM Financial » ofbiz » org.ofbiz.service.jms 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*******************************************************************************
002:         * Licensed to the Apache Software Foundation (ASF) under one
003:         * or more contributor license agreements.  See the NOTICE file
004:         * distributed with this work for additional information
005:         * regarding copyright ownership.  The ASF licenses this file
006:         * to you under the Apache License, Version 2.0 (the
007:         * "License"); you may not use this file except in compliance
008:         * with the License.  You may obtain a copy of the License at
009:         * 
010:         * http://www.apache.org/licenses/LICENSE-2.0
011:         * 
012:         * Unless required by applicable law or agreed to in writing,
013:         * software distributed under the License is distributed on an
014:         * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015:         * KIND, either express or implied.  See the License for the
016:         * specific language governing permissions and limitations
017:         * under the License.
018:         *******************************************************************************/package org.ofbiz.service.jms;
019:
020:        import java.util.ArrayList;
021:        import java.util.HashMap;
022:        import java.util.Iterator;
023:        import java.util.List;
024:        import java.util.Map;
025:
026:        import javax.jms.JMSException;
027:        import javax.jms.MapMessage;
028:        import javax.jms.Message;
029:        import javax.jms.Queue;
030:        import javax.jms.QueueConnection;
031:        import javax.jms.QueueConnectionFactory;
032:        import javax.jms.QueueSender;
033:        import javax.jms.QueueSession;
034:        import javax.jms.Session;
035:        import javax.jms.Topic;
036:        import javax.jms.TopicConnection;
037:        import javax.jms.TopicConnectionFactory;
038:        import javax.jms.TopicPublisher;
039:        import javax.jms.TopicSession;
040:        import javax.jms.XAQueueConnection;
041:        import javax.jms.XAQueueConnectionFactory;
042:        import javax.jms.XAQueueSession;
043:        import javax.naming.InitialContext;
044:        import javax.naming.NamingException;
045:        import javax.transaction.xa.XAResource;
046:
047:        import org.ofbiz.base.config.GenericConfigException;
048:        import org.ofbiz.base.util.Debug;
049:        import org.ofbiz.base.util.GeneralException;
050:        import org.ofbiz.base.util.JNDIContextFactory;
051:        import org.ofbiz.base.util.UtilXml;
052:        import org.ofbiz.entity.serialize.XmlSerializer;
053:        import org.ofbiz.entity.transaction.GenericTransactionException;
054:        import org.ofbiz.entity.transaction.TransactionUtil;
055:        import org.ofbiz.service.GenericRequester;
056:        import org.ofbiz.service.GenericServiceException;
057:        import org.ofbiz.service.ModelService;
058:        import org.ofbiz.service.ServiceDispatcher;
059:        import org.ofbiz.service.ServiceUtil;
060:        import org.ofbiz.service.config.ServiceConfigUtil;
061:        import org.ofbiz.service.engine.AbstractEngine;
062:        import org.w3c.dom.Element;
063:
064:        /**
065:         * AbstractJMSEngine
066:         */
067:        public class JmsServiceEngine extends AbstractEngine {
068:
069:            public static final String module = JmsServiceEngine.class
070:                    .getName();
071:
072:            public JmsServiceEngine(ServiceDispatcher dispatcher) {
073:                super (dispatcher);
074:            }
075:
076:            protected Element getServiceElement(ModelService modelService)
077:                    throws GenericServiceException {
078:                Element rootElement = null;
079:
080:                try {
081:                    rootElement = ServiceConfigUtil.getXmlRootElement();
082:                } catch (GenericConfigException e) {
083:                    throw new GenericServiceException(
084:                            "Error getting JMS Service element", e);
085:                }
086:
087:                String location = this .getLocation(modelService);
088:
089:                Element serviceElement = UtilXml.firstChildElement(rootElement,
090:                        "jms-service", "name", location);
091:
092:                if (serviceElement == null) {
093:                    throw new GenericServiceException(
094:                            "Cannot find an JMS service definition for the name ["
095:                                    + location
096:                                    + "] in the serviceengine.xml file");
097:                }
098:                return serviceElement;
099:            }
100:
101:            protected Message makeMessage(Session session,
102:                    ModelService modelService, Map context)
103:                    throws GenericServiceException, JMSException {
104:                List outParams = modelService.getParameterNames(
105:                        ModelService.OUT_PARAM, false);
106:
107:                if (outParams != null && outParams.size() > 0)
108:                    throw new GenericServiceException(
109:                            "JMS service cannot have required OUT parameters; no parameters will be returned.");
110:                String xmlContext = null;
111:
112:                try {
113:                    if (Debug.verboseOn())
114:                        Debug.logVerbose("Serializing Context --> " + context,
115:                                module);
116:                    xmlContext = XmlSerializer.serialize(context);
117:                } catch (Exception e) {
118:                    throw new GenericServiceException(
119:                            "Cannot serialize context.", e);
120:                }
121:                MapMessage message = session.createMapMessage();
122:
123:                message.setString("serviceName", modelService.invoke);
124:                message.setString("serviceContext", xmlContext);
125:                return message;
126:            }
127:
128:            protected List serverList(Element serviceElement)
129:                    throws GenericServiceException {
130:                String sendMode = serviceElement.getAttribute("send-mode");
131:                List serverList = UtilXml.childElementList(serviceElement,
132:                        "server");
133:
134:                if (sendMode.equals("none")) {
135:                    return new ArrayList();
136:                } else if (sendMode.equals("all")) {
137:                    return serverList;
138:                } else {
139:                    throw new GenericServiceException(
140:                            "Requested send mode not supported.");
141:                }
142:            }
143:
144:            protected Map runTopic(ModelService modelService, Map context,
145:                    Element server) throws GenericServiceException {
146:                String serverName = server.getAttribute("jndi-server-name");
147:                String jndiName = server.getAttribute("jndi-name");
148:                String topicName = server.getAttribute("topic-queue");
149:                String userName = server.getAttribute("username");
150:                String password = server.getAttribute("password");
151:                String clientId = server.getAttribute("client-id");
152:
153:                InitialContext jndi = null;
154:                TopicConnectionFactory factory = null;
155:                TopicConnection con = null;
156:
157:                try {
158:                    jndi = JNDIContextFactory.getInitialContext(serverName);
159:                    factory = (TopicConnectionFactory) jndi.lookup(jndiName);
160:                } catch (GeneralException ge) {
161:                    throw new GenericServiceException(
162:                            "Problems getting JNDI InitialContext.", ge
163:                                    .getNested());
164:                } catch (NamingException ne) {
165:                    JNDIContextFactory.clearInitialContext(serverName);
166:                    try {
167:                        jndi = JNDIContextFactory.getInitialContext(serverName);
168:                        factory = (TopicConnectionFactory) jndi
169:                                .lookup(jndiName);
170:                    } catch (GeneralException ge2) {
171:                        throw new GenericServiceException(
172:                                "Problems getting JNDI InitialContext.", ge2
173:                                        .getNested());
174:                    } catch (NamingException ne2) {
175:                        throw new GenericServiceException(
176:                                "JNDI lookup problems.", ne);
177:                    }
178:                }
179:
180:                try {
181:                    con = factory.createTopicConnection(userName, password);
182:
183:                    if (clientId != null && clientId.length() > 1)
184:                        con.setClientID(clientId);
185:                    con.start();
186:
187:                    TopicSession session = con.createTopicSession(false,
188:                            Session.AUTO_ACKNOWLEDGE);
189:                    Topic topic = (Topic) jndi.lookup(topicName);
190:                    TopicPublisher publisher = session.createPublisher(topic);
191:
192:                    // create/send the message
193:                    Message message = makeMessage(session, modelService,
194:                            context);
195:
196:                    publisher.publish(message);
197:                    if (Debug.verboseOn())
198:                        Debug.logVerbose("Sent JMS Message to " + topicName,
199:                                module);
200:
201:                    // close the connections
202:                    publisher.close();
203:                    session.close();
204:                    con.close();
205:                } catch (NamingException ne) {
206:                    throw new GenericServiceException(
207:                            "Problems with JNDI lookup.", ne);
208:                } catch (JMSException je) {
209:                    throw new GenericServiceException("JMS Internal Error.", je);
210:                }
211:                return ServiceUtil.returnSuccess();
212:
213:            }
214:
215:            protected Map runQueue(ModelService modelService, Map context,
216:                    Element server) throws GenericServiceException {
217:                String serverName = server.getAttribute("jndi-server-name");
218:                String jndiName = server.getAttribute("jndi-name");
219:                String queueName = server.getAttribute("topic-queue");
220:                String userName = server.getAttribute("username");
221:                String password = server.getAttribute("password");
222:                String clientId = server.getAttribute("client-id");
223:
224:                InitialContext jndi = null;
225:                QueueConnectionFactory factory = null;
226:                QueueConnection con = null;
227:
228:                try {
229:                    jndi = JNDIContextFactory.getInitialContext(serverName);
230:                    factory = (QueueConnectionFactory) jndi.lookup(jndiName);
231:                } catch (GeneralException ge) {
232:                    throw new GenericServiceException(
233:                            "Problems getting JNDI InitialContext.", ge
234:                                    .getNested());
235:                } catch (NamingException ne) {
236:                    JNDIContextFactory.clearInitialContext(serverName);
237:                    try {
238:                        jndi = JNDIContextFactory.getInitialContext(serverName);
239:                        factory = (QueueConnectionFactory) jndi
240:                                .lookup(jndiName);
241:                    } catch (GeneralException ge2) {
242:                        throw new GenericServiceException(
243:                                "Problems getting JNDI InitialContext.", ge2
244:                                        .getNested());
245:                    } catch (NamingException ne2) {
246:                        throw new GenericServiceException(
247:                                "JNDI lookup problem.", ne2);
248:                    }
249:                }
250:
251:                try {
252:                    con = factory.createQueueConnection(userName, password);
253:
254:                    if (clientId != null && clientId.length() > 1)
255:                        con.setClientID(clientId);
256:                    con.start();
257:
258:                    QueueSession session = con.createQueueSession(false,
259:                            Session.AUTO_ACKNOWLEDGE);
260:                    Queue queue = (Queue) jndi.lookup(queueName);
261:                    QueueSender sender = session.createSender(queue);
262:
263:                    // create/send the message
264:                    Message message = makeMessage(session, modelService,
265:                            context);
266:
267:                    sender.send(message);
268:                    if (Debug.verboseOn())
269:                        Debug.logVerbose("Sent JMS Message to " + queueName,
270:                                module);
271:
272:                    // close the connections
273:                    sender.close();
274:                    session.close();
275:                    con.close();
276:                } catch (NamingException ne) {
277:                    throw new GenericServiceException(
278:                            "Problems with JNDI lookup.", ne);
279:                } catch (JMSException je) {
280:                    throw new GenericServiceException("JMS Internal Error.", je);
281:                }
282:                return ServiceUtil.returnSuccess();
283:            }
284:
285:            protected Map runXaQueue(ModelService modelService, Map context,
286:                    Element server) throws GenericServiceException {
287:                String serverName = server.getAttribute("jndi-server-name");
288:                String jndiName = server.getAttribute("jndi-name");
289:                String queueName = server.getAttribute("topic-queue");
290:                String userName = server.getAttribute("username");
291:                String password = server.getAttribute("password");
292:                String clientId = server.getAttribute("client-id");
293:
294:                InitialContext jndi = null;
295:                XAQueueConnectionFactory factory = null;
296:                XAQueueConnection con = null;
297:
298:                try {
299:                    jndi = JNDIContextFactory.getInitialContext(serverName);
300:                    factory = (XAQueueConnectionFactory) jndi.lookup(jndiName);
301:                } catch (GeneralException ge) {
302:                    throw new GenericServiceException(
303:                            "Problems getting JNDI InitialContext.", ge
304:                                    .getNested());
305:                } catch (NamingException ne) {
306:                    JNDIContextFactory.clearInitialContext(serverName);
307:                    try {
308:                        jndi = JNDIContextFactory.getInitialContext(serverName);
309:                        factory = (XAQueueConnectionFactory) jndi
310:                                .lookup(jndiName);
311:                    } catch (GeneralException ge2) {
312:                        throw new GenericServiceException(
313:                                "Problems getting JNDI InitialContext.", ge2
314:                                        .getNested());
315:                    } catch (NamingException ne2) {
316:                        throw new GenericServiceException(
317:                                "JNDI lookup problems.", ne2);
318:                    }
319:                }
320:
321:                try {
322:                    con = factory.createXAQueueConnection(userName, password);
323:
324:                    if (clientId != null && clientId.length() > 1)
325:                        con.setClientID(userName);
326:                    con.start();
327:
328:                    // enlist the XAResource
329:                    XAQueueSession session = con.createXAQueueSession();
330:                    XAResource resource = session.getXAResource();
331:
332:                    if (TransactionUtil.getStatus() == TransactionUtil.STATUS_ACTIVE)
333:                        TransactionUtil.enlistResource(resource);
334:
335:                    Queue queue = (Queue) jndi.lookup(queueName);
336:                    QueueSession qSession = session.getQueueSession();
337:                    QueueSender sender = qSession.createSender(queue);
338:
339:                    // create/send the message
340:                    Message message = makeMessage(session, modelService,
341:                            context);
342:
343:                    sender.send(message);
344:
345:                    if (TransactionUtil.getStatus() != TransactionUtil.STATUS_ACTIVE)
346:                        session.commit();
347:
348:                    Debug.logInfo("Message sent.", module);
349:
350:                    // close the connections
351:                    sender.close();
352:                    session.close();
353:                    con.close();
354:                } catch (GenericTransactionException gte) {
355:                    throw new GenericServiceException(
356:                            "Problems enlisting resource w/ transaction manager.",
357:                            gte.getNested());
358:                } catch (NamingException ne) {
359:                    throw new GenericServiceException(
360:                            "Problems with JNDI lookup.", ne);
361:                } catch (JMSException je) {
362:                    throw new GenericServiceException("JMS Internal Error.", je);
363:                }
364:                return ServiceUtil.returnSuccess();
365:            }
366:
367:            protected Map run(ModelService modelService, Map context)
368:                    throws GenericServiceException {
369:                Element serviceElement = getServiceElement(modelService);
370:                List serverList = serverList(serviceElement);
371:
372:                Map result = new HashMap();
373:                Iterator i = serverList.iterator();
374:
375:                while (i.hasNext()) {
376:                    Element server = (Element) i.next();
377:                    String serverType = server.getAttribute("type");
378:
379:                    if (serverType.equals("topic"))
380:                        result.putAll(runTopic(modelService, context, server));
381:                    else if (serverType.equals("queue"))
382:                        result.putAll(runQueue(modelService, context, server));
383:                    else
384:                        throw new GenericServiceException(
385:                                "Illegal server messaging type.");
386:                }
387:                return result;
388:            }
389:
390:            /**
391:             * @see org.ofbiz.service.engine.GenericEngine#runSync(java.lang.String, org.ofbiz.service.ModelService, java.util.Map)
392:             */
393:            public Map runSync(String localName, ModelService modelService,
394:                    Map context) throws GenericServiceException {
395:                return run(modelService, context);
396:            }
397:
398:            /**
399:             * @see org.ofbiz.service.engine.GenericEngine#runSyncIgnore(java.lang.String, org.ofbiz.service.ModelService, java.util.Map)
400:             */
401:            public void runSyncIgnore(String localName,
402:                    ModelService modelService, Map context)
403:                    throws GenericServiceException {
404:                run(modelService, context);
405:            }
406:
407:            /**
408:             * @see org.ofbiz.service.engine.GenericEngine#runAsync(java.lang.String, org.ofbiz.service.ModelService, java.util.Map, org.ofbiz.service.GenericRequester, boolean)
409:             */
410:            public void runAsync(String localName, ModelService modelService,
411:                    Map context, GenericRequester requester, boolean persist)
412:                    throws GenericServiceException {
413:                Map result = run(modelService, context);
414:
415:                requester.receiveResult(result);
416:            }
417:
418:            /**
419:             * @see org.ofbiz.service.engine.GenericEngine#runAsync(java.lang.String, org.ofbiz.service.ModelService, java.util.Map, boolean)
420:             */
421:            public void runAsync(String localName, ModelService modelService,
422:                    Map context, boolean persist)
423:                    throws GenericServiceException {
424:                run(modelService, context);
425:            }
426:
427:        }
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