Source Code Cross Referenced for JMSSender.java in  » Web-Services-AXIS2 » kernal » org » apache » axis2 » transport » jms » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Web Services AXIS2 » kernal » org.apache.axis2.transport.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:         */
019:        package org.apache.axis2.transport.jms;
020:
021:        import org.apache.axiom.om.OMElement;
022:        import org.apache.axiom.om.OMOutputFormat;
023:        import org.apache.axis2.AxisFault;
024:        import org.apache.axis2.Constants;
025:        import org.apache.axis2.context.ConfigurationContext;
026:        import org.apache.axis2.context.MessageContext;
027:        import org.apache.axis2.description.TransportOutDescription;
028:        import org.apache.axis2.description.WSDL2Constants;
029:        import org.apache.axis2.description.Parameter;
030:        import org.apache.axis2.handlers.AbstractHandler;
031:        import org.apache.axis2.transport.TransportSender;
032:        import org.apache.commons.logging.Log;
033:        import org.apache.commons.logging.LogFactory;
034:
035:        import javax.jms.*;
036:        import javax.xml.stream.XMLStreamException;
037:        import javax.naming.InitialContext;
038:        import javax.naming.NamingException;
039:        import javax.naming.Context;
040:        import javax.naming.NameNotFoundException;
041:        import java.io.ByteArrayOutputStream;
042:        import java.io.IOException;
043:        import java.util.Hashtable;
044:
045:        /**
046:         * The TransportSender for JMS
047:         */
048:        public class JMSSender extends AbstractHandler implements 
049:                TransportSender {
050:
051:            private static final Log log = LogFactory.getLog(JMSSender.class);
052:
053:            /**
054:             * Performs the actual sending of the JMS message
055:             *
056:             * @param msgContext the message context to be sent
057:             * @throws AxisFault on exception
058:             */
059:            public InvocationResponse invoke(MessageContext msgContext)
060:                    throws AxisFault {
061:
062:                log.debug("JMSSender invoke()");
063:
064:                JMSOutTransportInfo transportInfo = null;
065:                String targetAddress = null;
066:
067:                // is there a transport url? which may be different from the WS-A To..
068:                targetAddress = (String) msgContext
069:                        .getProperty(Constants.Configuration.TRANSPORT_URL);
070:
071:                if (targetAddress != null) {
072:                    transportInfo = new JMSOutTransportInfo(targetAddress);
073:                } else if (targetAddress == null && msgContext.getTo() != null
074:                        && !msgContext.getTo().hasAnonymousAddress()) {
075:                    targetAddress = msgContext.getTo().getAddress();
076:
077:                    if (!msgContext.getTo().hasNoneAddress()) {
078:                        transportInfo = new JMSOutTransportInfo(targetAddress);
079:                    } else {
080:                        //Don't send the message.
081:                        return InvocationResponse.CONTINUE;
082:                    }
083:                } else if (msgContext.isServerSide()) {
084:                    // get the jms ReplyTo
085:                    transportInfo = (JMSOutTransportInfo) msgContext
086:                            .getProperty(Constants.OUT_TRANSPORT_INFO);
087:                }
088:
089:                // get the ConnectionFactory to be used for the send
090:                ConnectionFactory connectionFac = transportInfo
091:                        .getConnectionFactory();
092:
093:                Connection con = null;
094:                try {
095:                    String user = transportInfo.getConnectionFactoryUser();
096:                    String password = transportInfo
097:                            .getConnectionFactoryPassword();
098:
099:                    if ((user == null) || (password == null)) {
100:                        // Use the OS username and credentials
101:                        con = connectionFac.createConnection();
102:                    } else {
103:                        // use an explicit username and password
104:                        con = connectionFac.createConnection(user, password);
105:                    }
106:
107:                    Session session = con.createSession(false,
108:                            Session.AUTO_ACKNOWLEDGE);
109:                    Message message = createJMSMessage(msgContext, session);
110:
111:                    // get the JMS destination for the message being sent
112:                    Destination dest = transportInfo.getDestination();
113:
114:                    if (dest == null) {
115:                        if (targetAddress != null) {
116:
117:                            // if it does not exist, create it
118:                            String name = JMSUtils
119:                                    .getDestination(targetAddress);
120:                            if (log.isDebugEnabled()) {
121:                                log.debug("Creating JMS Destination : " + name);
122:                            }
123:
124:                            try {
125:                                dest = session.createQueue(name);
126:                            } catch (JMSException e) {
127:                                handleException(
128:                                        "Error creating destination Queue : "
129:                                                + name, e);
130:                            }
131:                        } else {
132:                            handleException("Cannot send reply to unknown JMS Destination");
133:                        }
134:                    }
135:
136:                    MessageProducer producer = session.createProducer(dest);
137:                    Destination replyDest = null;
138:
139:                    boolean waitForResponse = msgContext.getOperationContext() != null
140:                            && WSDL2Constants.MEP_URI_OUT_IN.equals(msgContext
141:                                    .getOperationContext().getAxisOperation()
142:                                    .getMessageExchangePattern());
143:
144:                    if (waitForResponse) {
145:                        String replyToJNDIName = (String) msgContext
146:                                .getProperty(JMSConstants.REPLY_PARAM);
147:                        if (replyToJNDIName != null
148:                                && replyToJNDIName.length() > 0) {
149:                            Context context = null;
150:                            Hashtable props = JMSUtils
151:                                    .getProperties(targetAddress);
152:                            try {
153:                                context = new InitialContext(props);
154:                            } catch (NamingException e) {
155:                                handleException(
156:                                        "Could not get the initial context", e);
157:                            }
158:
159:                            try {
160:                                replyDest = (Destination) context
161:                                        .lookup(replyToJNDIName);
162:
163:                            } catch (NameNotFoundException e) {
164:                                log
165:                                        .warn("Cannot get or lookup JMS response destination : "
166:                                                + replyToJNDIName
167:                                                + " : "
168:                                                + e.getMessage()
169:                                                + ". Attempting to create a Queue named : "
170:                                                + replyToJNDIName);
171:                                replyDest = session
172:                                        .createQueue(replyToJNDIName);
173:
174:                            } catch (NamingException e) {
175:                                handleException(
176:                                        "Cannot get JMS response destination : "
177:                                                + replyToJNDIName + " : ", e);
178:                            }
179:
180:                        } else {
181:                            try {
182:                                // create temporary queue to receive reply
183:                                replyDest = session.createTemporaryQueue();
184:                            } catch (JMSException e) {
185:                                handleException("Error creating temporary queue for response");
186:                            }
187:                        }
188:                        message.setJMSReplyTo(replyDest);
189:                        if (log.isDebugEnabled()) {
190:                            log
191:                                    .debug("Expecting a response to JMS Destination : "
192:                                            + (replyDest instanceof  Queue ? ((Queue) replyDest)
193:                                                    .getQueueName()
194:                                                    : ((Topic) replyDest)
195:                                                            .getTopicName()));
196:                        }
197:                    }
198:
199:                    try {
200:                        log.debug("["
201:                                + (msgContext.isServerSide() ? "Server"
202:                                        : "Client")
203:                                + "]Sending message to destination : " + dest);
204:                        producer.send(message);
205:                        producer.close();
206:
207:                    } catch (JMSException e) {
208:                        handleException(
209:                                "Error sending JMS message to destination : "
210:                                        + dest.toString(), e);
211:                    }
212:
213:                    if (waitForResponse) {
214:                        try {
215:                            // wait for reply
216:                            MessageConsumer consumer = session
217:                                    .createConsumer(replyDest);
218:
219:                            long timeout = JMSConstants.DEFAULT_JMS_TIMEOUT;
220:                            Long waitReply = (Long) msgContext
221:                                    .getProperty(JMSConstants.JMS_WAIT_REPLY);
222:                            if (waitReply != null) {
223:                                timeout = waitReply.longValue();
224:                            }
225:
226:                            log
227:                                    .debug("Waiting for a maximum of "
228:                                            + timeout
229:                                            + "ms for a response message to destination : "
230:                                            + replyDest);
231:                            con.start();
232:                            Message reply = consumer.receive(timeout);
233:
234:                            if (reply != null) {
235:                                msgContext.setProperty(
236:                                        MessageContext.TRANSPORT_IN, JMSUtils
237:                                                .getInputStream(reply));
238:                            } else {
239:                                log
240:                                        .warn("Did not receive a JMS response within "
241:                                                + timeout
242:                                                + " ms to destination : "
243:                                                + dest);
244:                            }
245:
246:                        } catch (JMSException e) {
247:                            handleException(
248:                                    "Error reading response from temporary "
249:                                            + "queue : " + replyDest, e);
250:                        }
251:                    }
252:                } catch (JMSException e) {
253:                    handleException(
254:                            "Error preparing to send message to destination", e);
255:
256:                } finally {
257:                    if (con != null) {
258:                        try {
259:                            con.close(); // closes all sessions, producers, temp Q's etc
260:                        } catch (JMSException e) {
261:                        } // ignore
262:                    }
263:                }
264:                return InvocationResponse.CONTINUE;
265:            }
266:
267:            public void cleanup(MessageContext msgContext) throws AxisFault {
268:                // do nothing
269:            }
270:
271:            public void init(ConfigurationContext confContext,
272:                    TransportOutDescription transportOut) throws AxisFault {
273:                // do nothing
274:            }
275:
276:            public void stop() {
277:                // do nothing
278:            }
279:
280:            /**
281:             * Create a JMS Message from the given MessageContext and using the given
282:             * session
283:             *
284:             * @param msgContext the MessageContext
285:             * @param session    the JMS session
286:             * @return a JMS message from the context and session
287:             * @throws JMSException on exception
288:             */
289:            private Message createJMSMessage(MessageContext msgContext,
290:                    Session session) throws JMSException {
291:
292:                Message message = null;
293:                String msgType = getProperty(msgContext,
294:                        JMSConstants.JMS_MESSAGE_TYPE);
295:
296:                OMElement msgElement = msgContext.getEnvelope();
297:                if (msgContext.isDoingREST()) {
298:                    msgElement = msgContext.getEnvelope().getBody()
299:                            .getFirstElement();
300:                }
301:
302:                if (msgType != null
303:                        && JMSConstants.JMS_BYTE_MESSAGE.equals(msgType)) {
304:
305:                    message = session.createBytesMessage();
306:                    BytesMessage bytesMsg = (BytesMessage) message;
307:                    ByteArrayOutputStream baos = new ByteArrayOutputStream();
308:                    OMOutputFormat format = new OMOutputFormat();
309:                    format.setCharSetEncoding(getProperty(msgContext,
310:                            Constants.Configuration.CHARACTER_SET_ENCODING));
311:                    format.setDoOptimize(msgContext.isDoingMTOM());
312:                    try {
313:                        msgElement.serializeAndConsume(baos, format);
314:                        baos.flush();
315:                    } catch (XMLStreamException e) {
316:                        handleException(
317:                                "XML serialization error creating BytesMessage",
318:                                e);
319:                    } catch (IOException e) {
320:                        handleException("IO Error while creating BytesMessage",
321:                                e);
322:                    }
323:                    bytesMsg.writeBytes(baos.toByteArray());
324:
325:                } else {
326:                    message = session.createTextMessage(); // default
327:                    TextMessage txtMsg = (TextMessage) message;
328:                    txtMsg.setText(msgElement.toString());
329:                }
330:
331:                // set the JMS correlation ID if specified
332:                String correlationId = getProperty(msgContext,
333:                        JMSConstants.JMS_COORELATION_ID);
334:                if (correlationId == null && msgContext.getRelatesTo() != null) {
335:                    correlationId = msgContext.getRelatesTo().getValue();
336:                }
337:
338:                if (correlationId != null) {
339:                    message.setJMSCorrelationID(correlationId);
340:                }
341:
342:                if (msgContext.isServerSide()) {
343:                    // set SOAP Action and context type as properties on the JMS message
344:                    setProperty(message, msgContext, JMSConstants.SOAPACTION);
345:                    setProperty(message, msgContext, JMSConstants.CONTENT_TYPE);
346:                } else {
347:                    String action = msgContext.getOptions().getAction();
348:                    if (action != null) {
349:                        message.setStringProperty(JMSConstants.SOAPACTION,
350:                                action);
351:                    }
352:                }
353:
354:                return message;
355:            }
356:
357:            private void setProperty(Message message, MessageContext msgCtx,
358:                    String key) {
359:
360:                String value = getProperty(msgCtx, key);
361:                if (value != null) {
362:                    try {
363:                        message.setStringProperty(key, value);
364:                    } catch (JMSException e) {
365:                        log.warn("Couldn't set message property : " + key
366:                                + " = " + value, e);
367:                    }
368:                }
369:            }
370:
371:            private String getProperty(MessageContext mc, String key) {
372:                return (String) mc.getProperty(key);
373:            }
374:
375:            private static void handleException(String s) {
376:                log.error(s);
377:                throw new AxisJMSException(s);
378:            }
379:
380:            private static void handleException(String s, Exception e) {
381:                log.error(s, e);
382:                throw new AxisJMSException(s, e);
383:            }
384:
385:        }
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