Source Code Cross Referenced for MessageChannelTest.java in  » Net » Terracotta » com » tc » net » protocol » tcm » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Net » Terracotta » com.tc.net.protocol.tcm 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * All content copyright (c) 2003-2006 Terracotta, Inc., except as may otherwise be noted in a separate copyright
003:         * notice. All rights reserved.
004:         */
005:        package com.tc.net.protocol.tcm;
006:
007:        import EDU.oswego.cs.dl.util.concurrent.SynchronizedRef;
008:
009:        import com.tc.logging.TCLogger;
010:        import com.tc.logging.TCLogging;
011:        import com.tc.net.TCSocketAddress;
012:        import com.tc.net.core.ConnectionAddressProvider;
013:        import com.tc.net.core.ConnectionInfo;
014:        import com.tc.net.protocol.NetworkStackHarnessFactory;
015:        import com.tc.net.protocol.PlainNetworkStackHarnessFactory;
016:        import com.tc.net.protocol.tcm.msgs.PingMessage;
017:        import com.tc.net.protocol.transport.DefaultConnectionIdFactory;
018:        import com.tc.net.protocol.transport.NullConnectionPolicy;
019:        import com.tc.net.protocol.transport.WireProtocolMessage;
020:        import com.tc.net.protocol.transport.WireProtocolMessageSink;
021:        import com.tc.object.session.NullSessionManager;
022:        import com.tc.test.TCTestCase;
023:        import com.tc.util.SequenceGenerator;
024:        import com.tc.util.TCTimeoutException;
025:        import com.tc.util.concurrent.ThreadUtil;
026:
027:        import gnu.trove.TLongHashSet;
028:
029:        import java.io.IOException;
030:        import java.net.ConnectException;
031:        import java.net.UnknownHostException;
032:        import java.text.SimpleDateFormat;
033:        import java.util.Date;
034:        import java.util.HashSet;
035:        import java.util.LinkedList;
036:        import java.util.List;
037:        import java.util.Random;
038:
039:        /**
040:         * This is a test case for MessageChannel. XXX: This test could use some work. It's not very coherent and uses sleeps.
041:         * --Orion 12/19/2005
042:         */
043:        public class MessageChannelTest extends TCTestCase {
044:            static final int ITERATIONS = 100;
045:            static final int WAIT_PERIOD = 100;
046:            static final int WAIT = ITERATIONS * WAIT_PERIOD;
047:            static final int MESSAGE_COUNT = 250;
048:
049:            TCLogger logger = TCLogging.getLogger(getClass());
050:            NetworkListener lsnr;
051:            CommunicationsManager clientComms;
052:            CommunicationsManager serverComms;
053:            ClientMessageChannel clientChannel;
054:            SequenceGenerator sequence;
055:            MessageSendAndReceiveWatcher clientWatcher;
056:            MessageSendAndReceiveWatcher serverWatcher;
057:            SynchronizedRef error = new SynchronizedRef(null);
058:            SequenceGenerator sq = new SequenceGenerator();
059:
060:            private int port = 0;
061:
062:            // public MessageChannelTest() {
063:            // disableAllUntil("2006-02-15");
064:            // }
065:
066:            protected void setUp(int maxReconnectTries) throws Exception {
067:                setUp(maxReconnectTries, false);
068:            }
069:
070:            protected void setUp(int maxReconnectTries,
071:                    boolean allowConnectionReplace) throws Exception {
072:                setUp(maxReconnectTries, allowConnectionReplace, false);
073:            }
074:
075:            protected void setUp(int maxReconnectTries,
076:                    boolean allowConnectionReplace, boolean dumbSink)
077:                    throws Exception {
078:                setUp(maxReconnectTries, new PlainNetworkStackHarnessFactory(
079:                        allowConnectionReplace),
080:                        new PlainNetworkStackHarnessFactory(
081:                                allowConnectionReplace), dumbSink);
082:            }
083:
084:            protected void setUp(int maxReconnectTries,
085:                    NetworkStackHarnessFactory clientStackHarnessFactory,
086:                    NetworkStackHarnessFactory serverStackHarnessFactory,
087:                    boolean dumbServerSink) throws Exception {
088:                super .setUp();
089:
090:                clientWatcher = new MessageSendAndReceiveWatcher();
091:                serverWatcher = new MessageSendAndReceiveWatcher();
092:
093:                this .sequence = new SequenceGenerator();
094:
095:                MessageMonitor mm = new NullMessageMonitor();
096:                clientComms = new CommunicationsManagerImpl(mm,
097:                        clientStackHarnessFactory, new NullConnectionPolicy());
098:                serverComms = new CommunicationsManagerImpl(mm,
099:                        serverStackHarnessFactory, new NullConnectionPolicy());
100:
101:                initListener(clientWatcher, serverWatcher, dumbServerSink);
102:                this .clientChannel = createClientMessageChannel(maxReconnectTries);
103:                this .setUpClientReceiveSink();
104:            }
105:
106:            private void initListener(
107:                    final MessageSendAndReceiveWatcher myClientSenderWatcher,
108:                    final MessageSendAndReceiveWatcher myServerSenderWatcher,
109:                    boolean dumbServerSink) throws IOException,
110:                    TCTimeoutException {
111:                if (lsnr != null) {
112:                    lsnr.stop(WAIT);
113:                }
114:
115:                if (dumbServerSink) {
116:                    lsnr = serverComms.createListener(new NullSessionManager(),
117:                            new TCSocketAddress(port), false,
118:                            new DefaultConnectionIdFactory(),
119:                            new WireProtocolMessageSink() {
120:
121:                                public void putMessage(
122:                                        WireProtocolMessage message) {
123:                                    // Thanks for the message.
124:                                    // But i don't give you back anything
125:                                    // as i am Dumb.
126:                                }
127:                            }
128:
129:                    );
130:                } else {
131:                    lsnr = serverComms.createListener(new NullSessionManager(),
132:                            new TCSocketAddress(port), false,
133:                            new DefaultConnectionIdFactory());
134:                }
135:
136:                lsnr.addClassMapping(TCMessageType.PING_MESSAGE,
137:                        PingMessage.class);
138:                lsnr.routeMessageType(TCMessageType.PING_MESSAGE,
139:                        new TCMessageSink() {
140:                            public void putMessage(TCMessage message)
141:                                    throws UnsupportedMessageTypeException {
142:                                // System.out.println(message);
143:
144:                                PingMessage ping = (PingMessage) message;
145:                                try {
146:                                    message.hydrate();
147:                                } catch (Exception e) {
148:                                    setError(e);
149:                                }
150:                                myClientSenderWatcher.addMessageReceived(ping);
151:
152:                                PingMessage pong = ping.createResponse();
153:                                pong.send();
154:                                myServerSenderWatcher.addMessageSent(pong);
155:                            }
156:                        });
157:                lsnr.start(new HashSet());
158:                this .port = lsnr.getBindPort();
159:            }
160:
161:            protected void tearDown() throws Exception {
162:                super .tearDown();
163:
164:                final Throwable lastError = (Throwable) error.get();
165:                if (lastError != null) {
166:                    throw new Exception(lastError);
167:                }
168:
169:                if (lsnr != null)
170:                    lsnr.stop(WAIT);
171:                if (this .clientChannel != null)
172:                    this .clientChannel.close();
173:                if (clientComms != null)
174:                    clientComms.shutdown();
175:                if (serverComms != null)
176:                    serverComms.shutdown();
177:            }
178:
179:            public void testAttachments() throws Exception {
180:                setUp(10);
181:                String key = "key";
182:                MessageChannel channel = createClientMessageChannel(10);
183:                assertNull(channel.getAttachment(key));
184:                assertNull(channel.removeAttachment(key));
185:
186:                Object attachment = new Object();
187:                Object attachment2 = new Object();
188:                channel.addAttachment(key, attachment, false);
189:                assertSame(attachment, channel.getAttachment(key));
190:                channel.addAttachment(key, attachment, false);
191:                assertSame(attachment, channel.getAttachment(key));
192:
193:                channel.addAttachment(key, attachment2, true);
194:                assertSame(attachment2, channel.getAttachment(key));
195:
196:                Object removed = channel.removeAttachment(key);
197:                assertSame(attachment2, removed);
198:
199:                removed = channel.removeAttachment(key);
200:                assertNull(removed);
201:                assertNull(channel.getAttachment(key));
202:            }
203:
204:            public void testOpenRaceWithAutoReconnect() throws Exception {
205:                setUp(-1, false, true);
206:
207:                Thread t = new Thread() {
208:                    public void run() {
209:                        ThreadUtil.reallySleep(WAIT / 2);
210:                        serverComms.getConnectionManager().shutdown();
211:                        System.err.println("closed connections on server side");
212:                    }
213:                };
214:
215:                t.start();
216:
217:                try {
218:                    clientChannel.open();
219:                    fail();
220:                } catch (TCTimeoutException e) {
221:                    // expected;
222:                    System.err
223:                            .println("Expected: got timeout exception for first open() : "
224:                                    + e);
225:                }
226:
227:                try {
228:                    clientChannel.open();
229:                    fail();
230:                } catch (ConnectException e) {
231:                    // expected
232:                    System.err.println("Expected: Connection Error: " + e);
233:                }
234:            }
235:
236:            public void testAutomaticReconnect() throws Exception {
237:                setUp(10, true);
238:                assertEquals(0, clientChannel.getConnectCount());
239:                assertEquals(0, clientChannel.getConnectAttemptCount());
240:                clientChannel.open();
241:                assertEquals(1, clientChannel.getConnectCount());
242:                assertEquals(1, clientChannel.getConnectAttemptCount());
243:
244:                final int closeCount = new Random().nextInt(MESSAGE_COUNT);
245:
246:                for (int i = 0; i < MESSAGE_COUNT; i++) {
247:                    if (i == closeCount) {
248:                        waitForArrivalOrFail(clientWatcher, i);
249:                        waitForArrivalOrFail(serverWatcher, i);
250:                        clientComms.getConnectionManager().closeAllConnections(
251:                                WAIT);
252:                        if (!waitUntilReconnected()) {
253:                            fail("Didn't reconnect");
254:                        }
255:                    }
256:                    createAndSendMessage();
257:                }
258:                assertTrue(clientChannel.getConnectAttemptCount() > 1);
259:                assertTrue(clientChannel.getConnectCount() > 1);
260:
261:                waitForMessages(MESSAGE_COUNT);
262:            }
263:
264:            private void waitForMessages(int count) throws InterruptedException {
265:                waitForArrivalOrFail(clientWatcher, count);
266:                waitForArrivalOrFail(serverWatcher, count);
267:
268:                String msg = "expected: " + count + ", client sent: "
269:                        + clientWatcher.sent() + ", client received: "
270:                        + clientWatcher.received() + ", server sent: "
271:                        + serverWatcher.sent() + ", server received: "
272:                        + serverWatcher.received();
273:
274:                assertEquals(msg, count, clientWatcher.sent());
275:                assertEquals(msg, count, clientWatcher.received());
276:                assertEquals(msg, count, serverWatcher.sent());
277:                assertEquals(msg, count, serverWatcher.received());
278:            }
279:
280:            public void testManualReconnectAfterFailure() throws Exception {
281:                setUp(0);
282:
283:                lsnr.stop(WAIT);
284:                serverComms.getConnectionManager().closeAllConnections(WAIT);
285:                clientComms.getConnectionManager().closeAllConnections(WAIT);
286:
287:                for (int i = 0; i < 10; i++) {
288:                    try {
289:                        clientChannel.open();
290:                        fail("Should have thrown an exception");
291:                    } catch (TCTimeoutException e) {
292:                        // expected
293:                    } catch (UnknownHostException e) {
294:                        fail(e.getMessage());
295:                    } catch (IOException e) {
296:                        // expected
297:                    }
298:
299:                    assertFalse(clientChannel.isConnected());
300:                }
301:
302:                initListener(this .clientWatcher, this .serverWatcher, false);
303:                clientChannel.open();
304:                assertTrue(clientChannel.isConnected());
305:            }
306:
307:            public void testSendAfterDisconnect() throws Exception {
308:                setUp(0);
309:                clientChannel.open();
310:
311:                createAndSendMessage();
312:                waitForArrivalOrFail(clientWatcher, 1);
313:                waitForArrivalOrFail(serverWatcher, 1);
314:
315:                sendMessagesWhileDisconnected(MESSAGE_COUNT, 25);
316:
317:                // don't explicitly need to do this, but if we wait, it's possible an error will happen on another thread
318:                ThreadUtil.reallySleep(5000);
319:            }
320:
321:            public void testZeroMaxRetriesDoesntAutoreconnect()
322:                    throws Exception {
323:                setUp(0);
324:                assertEquals(0, clientChannel.getConnectAttemptCount());
325:                assertEquals(0, clientChannel.getConnectCount());
326:
327:                clientChannel.open();
328:                assertEquals(1, clientChannel.getConnectAttemptCount());
329:                assertEquals(1, clientChannel.getConnectCount());
330:                clientComms.getConnectionManager().closeAllConnections(WAIT);
331:                ThreadUtil.reallySleep(5000);
332:                assertEquals(1, clientChannel.getConnectAttemptCount());
333:                assertEquals(1, clientChannel.getConnectCount());
334:            }
335:
336:            public void testNegativeMaxRetriesAlwaysReconnects()
337:                    throws Exception {
338:                setUp(-1);
339:
340:                assertEquals(0, clientChannel.getConnectCount());
341:                assertEquals(0, clientChannel.getConnectAttemptCount());
342:
343:                clientChannel.open();
344:
345:                assertEquals(1, clientChannel.getConnectCount());
346:                assertEquals(1, clientChannel.getConnectAttemptCount());
347:
348:                lsnr.stop(WAIT);
349:                assertEquals(0, serverComms.getAllListeners().length);
350:
351:                clientComms.getConnectionManager().closeAllConnections(5000);
352:                int count = clientChannel.getConnectAttemptCount();
353:                ThreadUtil.reallySleep(WAIT * 4);
354:                assertTrue(clientChannel.getConnectAttemptCount() + " vs "
355:                        + count, clientChannel.getConnectAttemptCount() > count);
356:                assertEquals(1, clientChannel.getConnectCount());
357:            }
358:
359:            // public void testSendBeforeOpen() throws Exception {
360:            // setUp(0);
361:            // PingMessage ping = createMessage();
362:            // assertTrue(clientChannel.getStatus().isClosed());
363:            // try {
364:            // ping.send();
365:            // fail("Should have thrown an assertion error");
366:            // } catch (TCAssertionError e) {
367:            // // expected
368:            // }
369:            // }
370:            //
371:            // public void testSendAfterClose() throws Exception {
372:            // setUp(0);
373:            // clientChannel.open();
374:            // assertTrue(clientChannel.getStatus().isOpen());
375:            //
376:            // PingMessage ping = createMessage();
377:            // clientChannel.close();
378:            // assertTrue(clientChannel.isClosed());
379:            //
380:            // try {
381:            // // send should fail
382:            // ping.send();
383:            // fail("should have thrown an exception");
384:            // } catch (TCAssertionError err) {
385:            // // expected
386:            // }
387:            // }
388:
389:            public void testGetStatus() throws Exception {
390:                setUp(0);
391:                clientChannel.open();
392:                assertTrue(clientChannel.isOpen());
393:                clientChannel.close();
394:                assertTrue(clientChannel.isClosed());
395:            }
396:
397:            public void testSend() throws Exception {
398:                setUp(0);
399:                clientChannel.open();
400:                int count = 100;
401:                List messages = new LinkedList();
402:                for (int i = 0; i < count; i++) {
403:                    messages.add(createAndSendMessage());
404:                }
405:                waitForMessages(count);
406:
407:            }
408:
409:            public void testSocketInfo() throws Exception {
410:                setUp(0);
411:
412:                assertNull(clientChannel.getRemoteAddress());
413:                assertNull(clientChannel.getLocalAddress());
414:
415:                clientChannel.open();
416:                createAndSendMessage();
417:                waitForMessages(1);
418:
419:                TCSocketAddress clientRemote = clientChannel.getRemoteAddress();
420:                TCSocketAddress clientLocal = clientChannel.getLocalAddress();
421:
422:                MessageChannelInternal[] serverChannels = lsnr
423:                        .getChannelManager().getChannels();
424:                assertEquals(1, serverChannels.length);
425:                MessageChannelInternal serverChannel = serverChannels[0];
426:
427:                TCSocketAddress serverRemote = serverChannel.getRemoteAddress();
428:                TCSocketAddress serverLocal = serverChannel.getLocalAddress();
429:
430:                assertEquals(clientRemote, serverLocal);
431:                assertEquals(clientLocal, serverRemote);
432:            }
433:
434:            private PingMessage createAndSendMessage() {
435:                PingMessage ping = createMessage();
436:                clientWatcher.addMessageSent(ping);
437:                ping.send();
438:                return ping;
439:            }
440:
441:            private static void waitForArrivalOrFail(
442:                    MessageSendAndReceiveWatcher watcher, int count)
443:                    throws InterruptedException {
444:                int i = 0;
445:                while (!watcher.allReceived() || (watcher.sent() < count)
446:                        || (watcher.received() < count)) {
447:                    if (i == ITERATIONS) {
448:                        fail((watcher.sent() - watcher.received())
449:                                + " messages of " + watcher.sent()
450:                                + " messages total failed to arrive in "
451:                                + ITERATIONS + " iterations of " + WAIT_PERIOD
452:                                + " ms. waiting.");
453:                    }
454:
455:                    Thread.sleep(WAIT_PERIOD);
456:                    i++;
457:                }
458:            }
459:
460:            private ClientMessageChannel createClientMessageChannel(
461:                    int maxReconnectTries) {
462:                ClientMessageChannel ch = clientComms.createClientChannel(
463:                        new NullSessionManager(), maxReconnectTries,
464:                        TCSocketAddress.LOOPBACK_IP, lsnr.getBindPort(), WAIT,
465:                        new ConnectionAddressProvider(
466:                                new ConnectionInfo[] { new ConnectionInfo(
467:                                        "localhost", lsnr.getBindPort()) }));
468:                ch.addClassMapping(TCMessageType.PING_MESSAGE,
469:                        PingMessage.class);
470:                return ch;
471:            }
472:
473:            private PingMessage createMessage() {
474:                PingMessage ping = (PingMessage) clientChannel
475:                        .createMessage(TCMessageType.PING_MESSAGE);
476:                ping.initialize(sq);
477:                return ping;
478:            }
479:
480:            private void sendMessagesWhileDisconnected(int count, int afterCount)
481:                    throws InterruptedException {
482:                Random rnd = new Random();
483:                final int closeCount = rnd.nextInt(count);
484:                final boolean serverClose = rnd.nextBoolean();
485:
486:                Thread thread = null;
487:
488:                for (int i = 0; i < count; i++) {
489:                    if (i == closeCount) {
490:                        // close down the connection in a seperate thread to increase the timing randomness
491:                        thread = new Thread("Connection closer thread") {
492:                            public void run() {
493:                                try {
494:                                    if (serverClose) {
495:                                        logger
496:                                                .info("Initiating close on the SERVER side...");
497:                                        serverComms.getConnectionManager()
498:                                                .asynchCloseAllConnections();
499:                                    } else {
500:                                        logger
501:                                                .info("Initiating close on the CLIENT side...");
502:                                        clientComms.getConnectionManager()
503:                                                .asynchCloseAllConnections();
504:                                    }
505:                                } catch (Throwable t) {
506:                                    setError(t);
507:                                }
508:                            }
509:                        };
510:                        Thread.sleep(rnd.nextInt(25) + 10);
511:                        thread.setDaemon(true);
512:                        thread.start();
513:                    }
514:
515:                    createAndSendMessage();
516:                }
517:
518:                thread.join(WAIT);
519:                assertFalse(thread.isAlive());
520:
521:                // make sure we send messages after the connection has actually closed for good measure
522:                for (int i = 0; i < afterCount; i++) {
523:                    createAndSendMessage();
524:                }
525:            }
526:
527:            private boolean waitUntilReconnected() {
528:                final long start = System.currentTimeMillis();
529:                while (System.currentTimeMillis() - start < WAIT) {
530:                    if (clientChannel.isConnected())
531:                        return true;
532:                    try {
533:                        Thread.sleep(WAIT_PERIOD);
534:                    } catch (InterruptedException e) {
535:                        e.printStackTrace();
536:                    }
537:                }
538:                return false;
539:            }
540:
541:            private void setUpClientReceiveSink() {
542:                final MessageSendAndReceiveWatcher myServerSenderWatcher = this .serverWatcher;
543:                clientChannel.routeMessageType(TCMessageType.PING_MESSAGE,
544:                        new TCMessageSink() {
545:                            public void putMessage(TCMessage message)
546:                                    throws UnsupportedMessageTypeException {
547:                                try {
548:                                    PingMessage ping = (PingMessage) message;
549:                                    ping.hydrate();
550:                                    // System.out.println("CLIENT RECEIVE: " + ping.getSequence());
551:                                } catch (Exception e) {
552:                                    setError(e);
553:                                }
554:                                PingMessage ping = (PingMessage) message;
555:                                myServerSenderWatcher.addMessageReceived(ping);
556:                            }
557:                        });
558:            }
559:
560:            private void setError(Throwable t) {
561:                synchronized (System.err) {
562:                    System.err.println(new SimpleDateFormat(
563:                            "yyyy-MM-dd HH:mm:ss,S").format(new Date())
564:                            + ": Exception Thrown in thread ["
565:                            + Thread.currentThread().getName() + "]");
566:                    t.printStackTrace(System.err);
567:                }
568:                error.set(t);
569:            }
570:
571:            public class MessageSendAndReceiveWatcher {
572:
573:                private TLongHashSet sentSequences = new TLongHashSet();
574:                private TLongHashSet receivedSequences = new TLongHashSet();
575:
576:                public synchronized void addMessageSent(PingMessage sent) {
577:                    sentSequences.add(sent.getSequence());
578:                }
579:
580:                public synchronized void addMessageReceived(PingMessage received) {
581:                    receivedSequences.add(received.getSequence());
582:                }
583:
584:                public int sent() {
585:                    return sentSequences.size();
586:                }
587:
588:                public int received() {
589:                    return receivedSequences.size();
590:                }
591:
592:                public synchronized boolean allReceived() {
593:                    return receivedSequences.containsAll(sentSequences
594:                            .toArray());
595:                }
596:            }
597:        }
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