Source Code Cross Referenced for PBTestEngine.java in  » ESB » open-esb » testengine » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » ESB » open esb » testengine 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * BEGIN_HEADER - DO NOT EDIT
003:         *
004:         * The contents of this file are subject to the terms
005:         * of the Common Development and Distribution License
006:         * (the "License").  You may not use this file except
007:         * in compliance with the License.
008:         *
009:         * You can obtain a copy of the license at
010:         * https://open-esb.dev.java.net/public/CDDLv1.0.html.
011:         * See the License for the specific language governing
012:         * permissions and limitations under the License.
013:         *
014:         * When distributing Covered Code, include this CDDL
015:         * HEADER in each file and include the License file at
016:         * https://open-esb.dev.java.net/public/CDDLv1.0.html.
017:         * If applicable add the following below this CDDL HEADER,
018:         * with the fields enclosed by brackets "[]" replaced with
019:         * your own identifying information: Portions Copyright
020:         * [year] [name of copyright owner]
021:         */
022:
023:        /*
024:         * @(#)PBTestEngine.java
025:         * Copyright 2004-2007 Sun Microsystems, Inc. All Rights Reserved.
026:         *
027:         * END_HEADER - DO NOT EDIT
028:         */
029:        package TestEngine;
030:
031:        import java.io.IOException;
032:        import java.io.PrintWriter;
033:        import java.io.InputStreamReader;
034:        import java.io.StringReader;
035:
036:        import java.util.logging.Logger;
037:
038:        import javax.activation.DataHandler;
039:
040:        import javax.jbi.component.Component;
041:        import javax.jbi.component.ComponentLifeCycle;
042:        import javax.jbi.component.ComponentContext;
043:        import javax.jbi.component.ServiceUnitManager;
044:
045:        import javax.jbi.messaging.DeliveryChannel;
046:        import javax.jbi.messaging.ExchangeStatus;
047:        import javax.jbi.messaging.Fault;
048:        import javax.jbi.messaging.InOut;
049:        import javax.jbi.messaging.InOptionalOut;
050:        import javax.jbi.messaging.InOnly;
051:        import javax.jbi.messaging.MessageExchange;
052:        import javax.jbi.messaging.NormalizedMessage;
053:
054:        import javax.jbi.servicedesc.ServiceEndpoint;
055:
056:        import javax.naming.InitialContext;
057:
058:        import javax.xml.namespace.QName;
059:        import javax.xml.parsers.DocumentBuilder;
060:        import javax.xml.parsers.DocumentBuilderFactory;
061:        import javax.xml.transform.Source;
062:        import javax.xml.transform.Transformer;
063:        import javax.xml.transform.TransformerFactory;
064:        import javax.xml.transform.stream.StreamSource;
065:        import javax.xml.transform.dom.DOMSource;
066:        import javax.xml.transform.dom.DOMResult;
067:
068:        import org.w3c.dom.Document;
069:        import org.w3c.dom.DocumentFragment;
070:        import org.w3c.dom.Element;
071:
072:        /**
073:         * This is a servlet that acts as a Service Engine and tests the dynamic
074:         * registration support provided by JBI. It registers itself as an engine and
075:         * then performs a fixed set of message exchanges with another servlet that
076:         * acts as a Binding Component. That servlet is ESBBindingServlet.
077:         *
078:         * @author Sun Microsystems, Inc.
079:         */
080:        public class PBTestEngine implements  Component, ComponentLifeCycle {
081:
082:            /**
083:             * Logger for the servlet.
084:             */
085:            private java.util.logging.Logger mLog;
086:
087:            /**
088:             * Handle to the XML Document Builder.
089:             */
090:            private DocumentBuilder mDocumentBuilder;
091:
092:            /**
093:             * Engine channel for NMS communications.
094:             */
095:            private DeliveryChannel mChannel;
096:
097:            /**
098:             * Engine's endpoint.
099:             */
100:            private ServiceEndpoint mEngineEndpoint1;
101:            private ServiceEndpoint mEngineEndpoint2;
102:
103:            /**
104:             * Component LifeCycle.
105:             */
106:            private ComponentContext mContext;
107:
108:            /**
109:             * Runner Thread.
110:             */
111:            private Thread mRunnerThread;
112:            private boolean mRunning;
113:
114:            /**
115:             * The action for an initialize request.
116:             */
117:            private static final String ACTION_INIT = "init";
118:
119:            /**
120:             * The action for a pingbinding request.
121:             */
122:            private static final String ACTION_START = "dostart";
123:
124:            /**
125:             * The action for a acceptping request.
126:             */
127:            private static final String ACTION_STOP = "dostop";
128:
129:            /**
130:             * The engine's service name.
131:             */
132:            private static final QName ENGINE_SERVICE = new QName(
133:                    "pb-test-engine_service");
134:
135:            /**
136:             * Qualified name for the binding's service.
137:             */
138:            private static final QName BINDING_SERVICE = new QName(
139:                    "pb-test-binding_service");
140:
141:            /**
142:             *  The engine's endpoint name.
143:             */
144:            private static final String ENGINE_ENDPOINT1 = "pb-test-engine_endpoint1";
145:            private static final String ENGINE_ENDPOINT2 = "pb-test-engine_endpoint2";
146:
147:            /**
148:             * JBI component name
149:             */
150:            private static final String JBI_COMPONENT_NAME = "PBTestEngine";
151:
152:            /**
153:             * JBI component description
154:             */
155:            private static final String JBI_COMPONENT_DESC = "PBTestEngine acting as an SE";
156:
157:            public PBTestEngine() {
158:                mLog = Logger.getLogger(this .getClass().getPackage().getName());
159:            }
160:
161:            //--------------------------- Component Methods ------------------------------
162:
163:            /**
164:             * Get the ComponentLifeCycle instance.
165:             * @return The ComponentLifeCycle instance for this component.
166:             */
167:            public ComponentLifeCycle getLifeCycle() {
168:                mLog.info("Component getLifeCycle() called");
169:                return this ;
170:            }
171:
172:            /**
173:             * Get the ServiceUnitManager instance.
174:             * @return The ServiceUnitManager instance, which is always null for
175:             * this test.
176:             */
177:            public ServiceUnitManager getServiceUnitManager() {
178:                mLog.info("Component getServiceUnitManager() called");
179:                return null;
180:            }
181:
182:            /**
183:             * This method is called by JBI to check if this component, in the role of
184:             * provider of the service indicated by the given exchange, can actually
185:             * perform the operation desired.
186:             *
187:             * @param endpoint
188:             * @param exchange
189:             *
190:             * @return  true if its OK.
191:             */
192:            public boolean isExchangeWithConsumerOkay(
193:                    javax.jbi.servicedesc.ServiceEndpoint endpoint,
194:                    javax.jbi.messaging.MessageExchange exchange) {
195:                /* Should not always return true
196:                 * The capabilities of this component has to be checked first.
197:                 * Not implemented right now
198:                 */
199:                return true;
200:            }
201:
202:            /**
203:             * This method is called by JBI to check if this component, in the role of
204:             * consumer of the service indicated by the given exchange, can actually
205:             * interact with the the provider completely.
206:             *
207:             * @param endpoint
208:             * @param exchange
209:             *
210:             * @return  true if OK.
211:             */
212:            public boolean isExchangeWithProviderOkay(
213:                    javax.jbi.servicedesc.ServiceEndpoint endpoint,
214:                    javax.jbi.messaging.MessageExchange exchange) {
215:                /* Should not always return true
216:                 * The capabilities of this component has to be checked first.
217:                 * Not implemented right now
218:                 */
219:                return true;
220:            }
221:
222:            /**
223:             * Returns a resolver for meta-data.
224:             *
225:             * @param ServiceEndpoint endpoint reference object.
226:             *
227:             * @return Descriptor for this engine.
228:             */
229:            public org.w3c.dom.Document getServiceDescription(
230:                    javax.jbi.servicedesc.ServiceEndpoint ServiceEndpoint) {
231:                org.w3c.dom.Document desc = null;
232:
233:                try {
234:                    Source source;
235:                    DOMResult dr;
236:                    Transformer transform;
237:                    String wsdl = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"
238:                            + "<definitions xmlns=\"http://www.w3.org/2006/01/wsdl\" "
239:                            + "xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" "
240:                            + "xsi:schemaLocation=\"http://www.w3.org/2006/01/wsdl wsdl20.xsd\" "
241:                            + "targetNamespace=\"http://sun.com/proxybinding.wsdl\">"
242:                            + "<interface name=\"testPBIF\">"
243:                            + "<operation name=\"transform\" style=\"http://www.w3.org/2006/01/wsdl/style/rpc\" "
244:                            + "pattern=\"http://www.w3.org/2006/01/wsdl/in-out\">"
245:                            + "<input messageLabel=\"A\" />"
246:                            + "<output messageLabel=\"B\" />"
247:                            + "</operation>"
248:                            + "</interface>"
249:                            + "<binding name=\"testPB\" interface=\"tns:testPBIF\" "
250:                            + "type=\"http://sun.com/jbi/wsdl/proxybinding10\">"
251:                            + "<operation ref=\"transform\">"
252:                            + "<input messageLabel=\"A\">"
253:                            + "</input>"
254:                            + "<output messageLabel=\"B\">"
255:                            + "</output>"
256:                            + "</operation>"
257:                            + "</binding>"
258:                            + "<service name=\"testPBService\" interface=\"tns:testPBIF\">"
259:                            + "<documentation>"
260:                            + "Tests the ProxyBinding service."
261:                            + "</documentation>"
262:                            + "<endpoint name=\"testPB\" binding=\"tns:testPB\"/>"
263:                            + "</service>" + "</definitions>";
264:                    source = new StreamSource(new StringReader(wsdl));
265:                    transform = TransformerFactory.newInstance()
266:                            .newTransformer();
267:                    transform.transform(source, dr = new DOMResult());
268:                    desc = (Document) dr.getNode();
269:                } catch (Exception e) {
270:                    mLog.info("PBTestEngine: getServiceDescription failed: "
271:                            + e);
272:                }
273:
274:                return desc;
275:            }
276:
277:            /**
278:             * Resolve the endpoint reference using the given capabilities of the
279:             * consumer. This is called by JBI when its trying to resove the given EPR
280:             * on behalf of the component.
281:             *
282:             * @param epr endpoint reference.
283:             *
284:             * @return  Service enpoint.
285:             */
286:            public ServiceEndpoint resolveEndpointReference(DocumentFragment epr) {
287:                return mEngineEndpoint1;
288:            }
289:
290:            //----------------------- ComponentLifeCycle Methods -------------------------
291:
292:            /**
293:             * Initializes the JBI LifeCycle. This creates/opens a delivery channel
294:             * for the servlet to use for interactions with the NMR.
295:             * @param context - the component context provided by the JBI framework.
296:             * @throws javax.jbi.JBIException if any error occurs.
297:             */
298:            public void init(ComponentContext context)
299:                    throws javax.jbi.JBIException {
300:                mLog.info("PBTEstEngine: LifeCycle init() entered");
301:
302:                DocumentBuilderFactory dbf = DocumentBuilderFactory
303:                        .newInstance();
304:                dbf.setNamespaceAware(true);
305:                try {
306:                    mDocumentBuilder = dbf.newDocumentBuilder();
307:                } catch (javax.xml.parsers.ParserConfigurationException pcEx) {
308:                    throw new javax.jbi.JBIException(
309:                            "Unable to create new DocumentBuilder instance: "
310:                                    + pcEx, pcEx);
311:                }
312:
313:                getServiceDescription(null);
314:
315:                mContext = context;
316:                mChannel = mContext.getDeliveryChannel();
317:                mEngineEndpoint1 = mContext.activateEndpoint(ENGINE_SERVICE,
318:                        ENGINE_ENDPOINT1);
319:                mEngineEndpoint2 = mContext.activateEndpoint(ENGINE_SERVICE,
320:                        ENGINE_ENDPOINT2);
321:
322:                mLog.info("PBTEstEngine: LifeCycle init() exited");
323:            }
324:
325:            /**
326:             * Get the Extension MBean name.
327:             * @return The JMX object name of the Extension MBean for this SE,
328:             * which is always null in this test.
329:             */
330:            public javax.management.ObjectName getExtensionMBeanName() {
331:                return null;
332:            }
333:
334:            /**
335:             * Start the JBI LifeCycle. This activates an inbound service and an
336:             * outbound service for use in message exchanges with the binding servlet.
337:             * @throws javax.jbi.JBIException if any error occurs.
338:             */
339:            public void start() throws javax.jbi.JBIException {
340:                mLog.info("PBTestEngine: LifeCycle start() entered");
341:                mRunning = true;
342:                mRunnerThread = new Thread(new EngineRunner());
343:                mRunnerThread.setName("PBTestEngine-Runner");
344:                mRunnerThread.setDaemon(true);
345:                mRunnerThread.start();
346:                mLog.info("PBTestEngine: LifeCycle start() exited");
347:            }
348:
349:            /**
350:             * Stop the JBI LifeCycle. This deactivates the inbound and outbound
351:             * services.
352:             * @throws javax.jbi.JBIException if any error occurs.
353:             */
354:            public void stop() throws javax.jbi.JBIException {
355:                mLog.info("PBTestEngine: LifeCycle stop() entered");
356:                mRunning = false;
357:                mRunnerThread.interrupt();
358:                mContext
359:                        .deactivateEndpoint((javax.jbi.servicedesc.ServiceEndpoint) mEngineEndpoint1);
360:                mContext
361:                        .deactivateEndpoint((javax.jbi.servicedesc.ServiceEndpoint) mEngineEndpoint2);
362:
363:                mLog.info("PBTestEngine: LifeCycle stop() exited");
364:            }
365:
366:            /**
367:             * Shutdown the JBI LifeCycle. This closes the engine channel.
368:             * @throws javax.jbi.JBIException if any error occurs.
369:             */
370:            public void shutDown() throws javax.jbi.JBIException {
371:                mLog.info("PBTestEngine: LifeCycle shutDown() entered");
372:
373:                mChannel.close();
374:
375:                mLog.info("PBTestEngine: LifeCycle shutDown() exited");
376:            }
377:
378:            //----------------------------- Private Methods ------------------------------
379:
380:            /**
381:             * Create a Normalized Message.
382:             * @param exchange - a MessageExchange for which a message is to be created.
383:             * @param content - a String containing the message content.
384:             * @return The NormalizedMessage instance with the provided content.
385:             */
386:            private NormalizedMessage createMessage(MessageExchange exchange,
387:                    String content) {
388:                NormalizedMessage msg = null;
389:                try {
390:                    Document doc;
391:                    Element elem;
392:                    msg = exchange.createMessage();
393:                    doc = mDocumentBuilder.newDocument();
394:                    elem = doc.createElement("message");
395:                    elem.appendChild(doc.createTextNode(content));
396:                    doc.appendChild(elem);
397:                    msg.setContent(new DOMSource(doc));
398:                } catch (javax.jbi.messaging.MessagingException ex) {
399:                    mLog.warning("MessagingException " + ex.toString());
400:                }
401:                return msg;
402:            }
403:
404:            /**
405:             * Create a Normalized Message.
406:             * @param exchange - a MessageExchange for which a message is to be created.
407:             * @param content - a String containing the message content.
408:             * @return The NormalizedMessage instance with the provided content.
409:             */
410:            private Fault createFault(MessageExchange exchange, String content) {
411:                Fault fault = null;
412:                try {
413:                    Document doc;
414:                    Element elem;
415:                    fault = exchange.createFault();
416:                    doc = mDocumentBuilder.newDocument();
417:                    elem = doc.createElement("message");
418:                    elem.appendChild(doc.createTextNode(content));
419:                    doc.appendChild(elem);
420:                    fault.setContent(new DOMSource(doc));
421:                } catch (javax.jbi.messaging.MessagingException ex) {
422:                    mLog.warning("MessagingException " + ex.toString());
423:                }
424:                return fault;
425:            }
426:
427:            class EngineRunner implements  java.lang.Runnable {
428:                public void run() {
429:                    MessageExchange me;
430:                    boolean expectFailure = false;
431:
432:                    mLog.info("PBTestEngine: Start processing requests");
433:
434:                    String respMsg = null;
435:                    String a;
436:
437:                    while (mRunning) {
438:                        try {
439:                            expectFailure = false;
440:                            respMsg = null;
441:                            me = mChannel.accept();
442:                            if (me instanceof  InOut) {
443:                                InOut io = (InOut) me;
444:
445:                                mLog
446:                                        .info("PBTestEngine: InOut exchange received");
447:                                io
448:                                        .setOutMessage(createMessage(io,
449:                                                "PBTestEngine message to InOut service"));
450:                                io.setProperty("InOutProp", "OK");
451:                                mChannel.send(io);
452:                                io = (InOut) mChannel.accept();
453:                                if (io.getStatus() != ExchangeStatus.DONE) {
454:                                    mLog.warning("PBTestEngine: InOut failed");
455:                                }
456:                                mLog
457:                                        .info("PBTestEngine: InOut exchange finished");
458:                            } else if (me instanceof  InOnly) {
459:                                InOnly io = (InOnly) me;
460:                                mLog
461:                                        .info("PBTestEngine: InOnly exchange received");
462:                                if (!getAttachment(me)
463:                                        .equals(
464:                                                "This is the contents of the attachment.")) {
465:                                    io.setStatus(ExchangeStatus.ERROR);
466:                                    io.setProperty("InOnlyProp", "OK");
467:                                    mChannel.send(io);
468:                                    mLog
469:                                            .warning("PBTestEngine: InOnly attachment content error");
470:                                } else {
471:                                    if (io.getOperation().getLocalPart()
472:                                            .equals("InOnlyTimeout")) {
473:                                        expectFailure = true;
474:                                        synchronized (this ) {
475:                                            this .wait(6000);
476:                                        }
477:                                    }
478:                                    io.setStatus(ExchangeStatus.DONE);
479:                                    mChannel.send(io);
480:                                    mLog
481:                                            .info("PBTestEngine: InOnly exchange finished");
482:                                }
483:                            } else if (me instanceof  InOptionalOut) {
484:                                InOptionalOut io = (InOptionalOut) me;
485:                                Fault f;
486:
487:                                mLog
488:                                        .info("PBTestEngine: InOptionalOut exchange received");
489:                                f = createFault(io, "Fault");
490:                                io.setFault(f);
491:                                io.setProperty("InOptionalOutProp", "OK");
492:                                mChannel.send(io);
493:                                io = (InOptionalOut) mChannel.accept();
494:                                if (io.getStatus() != ExchangeStatus.DONE) {
495:                                    mLog
496:                                            .warning("PBTestEngine: InOptionalOut failed");
497:                                }
498:                                mLog.info("PBTestEngine: In exchange finished");
499:                            }
500:                        } catch (javax.jbi.messaging.MessagingException mEx) {
501:                            respMsg = "PBTestEngine: Messaging error: " + mEx;
502:                            if (!expectFailure) {
503:                                mRunning = false;
504:                            }
505:                        } catch (java.lang.InterruptedException iEx) {
506:                            mLog
507:                                    .warning("PBTestEngine: Interrupted Exception: "
508:                                            + iEx);
509:                            mRunning = false;
510:                        }
511:                    }
512:
513:                    mLog.info("PBTestEngine: Processing stopping");
514:                }
515:            }
516:
517:            String getAttachment(MessageExchange me) {
518:                NormalizedMessage nm;
519:                DataHandler a;
520:                StringBuffer s = new StringBuffer();
521:                int c;
522:
523:                try {
524:                    nm = me.getMessage("in");
525:                    a = nm.getAttachment("Attachment1");
526:                    InputStreamReader isr = new InputStreamReader(a
527:                            .getInputStream());
528:                    while ((c = isr.read()) != -1) {
529:                        s.append((char) c);
530:                    }
531:                    return (s.toString());
532:                } catch (java.io.IOException ioEx) {
533:                }
534:                return (null);
535:            }
536:        }
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