Source Code Cross Referenced for UILServerIL.java in  » EJB-Server-JBoss-4.2.1 » messaging » org » jboss » mq » il » uil2 » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » EJB Server JBoss 4.2.1 » messaging » org.jboss.mq.il.uil2 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * JBoss, Home of Professional Open Source.
003:         * Copyright 2006, Red Hat Middleware LLC, and individual contributors
004:         * as indicated by the @author tags. See the copyright.txt file in the
005:         * distribution for a full listing of individual contributors.
006:         *
007:         * This is free software; you can redistribute it and/or modify it
008:         * under the terms of the GNU Lesser General Public License as
009:         * published by the Free Software Foundation; either version 2.1 of
010:         * the License, or (at your option) any later version.
011:         *
012:         * This software is distributed in the hope that it will be useful,
013:         * but WITHOUT ANY WARRANTY; without even the implied warranty of
014:         * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
015:         * Lesser General Public License for more details.
016:         *
017:         * You should have received a copy of the GNU Lesser General Public
018:         * License along with this software; if not, write to the Free
019:         * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
020:         * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
021:         */
022:        package org.jboss.mq.il.uil2;
023:
024:        import java.io.Serializable;
025:        import java.io.IOException;
026:        import java.net.InetAddress;
027:        import java.net.ConnectException;
028:        import java.net.Socket;
029:        import javax.jms.Destination;
030:        import javax.jms.JMSException;
031:        import javax.jms.Queue;
032:        import javax.jms.TemporaryQueue;
033:        import javax.jms.TemporaryTopic;
034:        import javax.jms.Topic;
035:        import javax.net.SocketFactory;
036:        import javax.transaction.xa.Xid;
037:
038:        import org.jboss.logging.Logger;
039:        import org.jboss.mq.AcknowledgementRequest;
040:        import org.jboss.mq.Connection;
041:        import org.jboss.mq.ConnectionToken;
042:        import org.jboss.mq.DurableSubscriptionID;
043:        import org.jboss.mq.Recoverable;
044:        import org.jboss.mq.SpyDestination;
045:        import org.jboss.mq.SpyMessage;
046:        import org.jboss.mq.TransactionRequest;
047:        import org.jboss.mq.il.ServerIL;
048:        import org.jboss.mq.il.uil2.msgs.MsgTypes;
049:        import org.jboss.mq.il.uil2.msgs.ConnectionTokenMsg;
050:        import org.jboss.mq.il.uil2.msgs.EnableConnectionMsg;
051:        import org.jboss.mq.il.uil2.msgs.GetIDMsg;
052:        import org.jboss.mq.il.uil2.msgs.RecoverMsg;
053:        import org.jboss.mq.il.uil2.msgs.TemporaryDestMsg;
054:        import org.jboss.mq.il.uil2.msgs.AcknowledgementRequestMsg;
055:        import org.jboss.mq.il.uil2.msgs.AddMsg;
056:        import org.jboss.mq.il.uil2.msgs.BrowseMsg;
057:        import org.jboss.mq.il.uil2.msgs.CheckIDMsg;
058:        import org.jboss.mq.il.uil2.msgs.CheckUserMsg;
059:        import org.jboss.mq.il.uil2.msgs.CloseMsg;
060:        import org.jboss.mq.il.uil2.msgs.CreateDestMsg;
061:        import org.jboss.mq.il.uil2.msgs.DeleteTemporaryDestMsg;
062:        import org.jboss.mq.il.uil2.msgs.DeleteSubscriptionMsg;
063:        import org.jboss.mq.il.uil2.msgs.PingMsg;
064:        import org.jboss.mq.il.uil2.msgs.ReceiveMsg;
065:        import org.jboss.mq.il.uil2.msgs.SubscribeMsg;
066:        import org.jboss.mq.il.uil2.msgs.TransactMsg;
067:        import org.jboss.mq.il.uil2.msgs.UnsubscribeMsg;
068:
069:        /** The UILServerIL is created on the server and copied to the client during
070:         * connection factory lookups. It represents the transport interface to the
071:         * JMS server.
072:         * 
073:         * @author Scott.Stark@jboss.org
074:         * @version $Revision: 57198 $
075:         */
076:        public class UILServerIL implements  Cloneable, MsgTypes, Serializable,
077:                ServerIL, Recoverable {
078:            /** @since 1.7, at least jboss-3.2.5, jboss-4.0.0 */
079:            private static final long serialVersionUID = 853594001646066224L;
080:            private static Logger log = Logger.getLogger(UILServerIL.class);
081:
082:            /** The org.jboss.mq.il.uil2.useServerHost system property allows a client to
083:             * to connect to the host name rather than the ip address
084:             */
085:            private final static String USE_SERVER_HOST = "org.jboss.mq.il.uil2.useServerHost";
086:
087:            /** The org.jboss.mq.il.uil2.localAddr system property allows a client to
088:             *define the local interface to which its sockets should be bound
089:             */
090:            private final static String LOCAL_ADDR = "org.jboss.mq.il.uil2.localAddr";
091:            /** The org.jboss.mq.il.uil2.localPort system property allows a client to
092:             *define the local port to which its sockets should be bound
093:             */
094:            private final static String LOCAL_PORT = "org.jboss.mq.il.uil2.localPort";
095:            /** The org.jboss.mq.il.uil2.serverAddr system property allows a client to
096:             * override the address to which it attempts to connect to. This is useful
097:             * for networks where NAT is ocurring between the client and jms server.
098:             */
099:            private final static String SERVER_ADDR = "org.jboss.mq.il.uil2.serverAddr";
100:            /** The org.jboss.mq.il.uil2.serverPort system property allows a client to
101:             * override the port to which it attempts to connect. This is useful for
102:             * for networks where port forwarding is ocurring between the client and jms
103:             * server.
104:             */
105:            private final static String SERVER_PORT = "org.jboss.mq.il.uil2.serverPort";
106:            /** The org.jboss.mq.il.uil2.retryCount controls the number of attempts to
107:             * retry connecting to the jms server. Retries are only made for 
108:             * java.net.ConnectException failures. A value <= 0 means no retry atempts
109:             * will be made.
110:             */
111:            private final static String RETRY_COUNT = "org.jboss.mq.il.uil2.retryCount";
112:            /** The org.jboss.mq.il.uil2.retryDelay controls the delay in milliseconds
113:             * between retries due to ConnectException failures.
114:             */
115:            private final static String RETRY_DELAY = "org.jboss.mq.il.uil2.retryDelay";
116:
117:            /** The server host name/IP to connect to as defined by the jms server.
118:             */
119:            private InetAddress addr;
120:            /** The server port to connect to as defined by the jms server.
121:             */
122:            private int port;
123:            /** The name of the class implementing the javax.net.SocketFactory to
124:             * use for creating the client socket.
125:             */
126:            private String socketFactoryName;
127:
128:            /**
129:             * If the TcpNoDelay option should be used on the socket.
130:             */
131:            private boolean enableTcpNoDelay = false;
132:
133:            /**
134:             * The client side read timeout
135:             */
136:            private int soTimeout = 0;
137:
138:            /**
139:             * The connect address
140:             */
141:            private String connectAddress;
142:
143:            /**
144:             * The connect port
145:             */
146:            private int connectPort = 0;
147:
148:            /**
149:             * The buffer size.
150:             */
151:            private int bufferSize;
152:
153:            /**
154:             * The chunk size.
155:             */
156:            private int chunkSize;
157:
158:            /** The local interface name/IP to use for the client
159:             */
160:            private transient InetAddress localAddr;
161:            /** The local port to use for the client
162:             */
163:            private transient int localPort;
164:
165:            /**
166:             * Description of the Field
167:             */
168:            protected transient Socket socket;
169:            /**
170:             * Description of the Field
171:             */
172:            protected transient SocketManager socketMgr;
173:
174:            public UILServerIL(InetAddress addr, int port,
175:                    String socketFactoryName, boolean enableTcpNoDelay,
176:                    int bufferSize, int chunkSize, int soTimeout,
177:                    String connectAddress, int connectPort) throws Exception {
178:                this .addr = addr;
179:                this .port = port;
180:                this .socketFactoryName = socketFactoryName;
181:                this .enableTcpNoDelay = enableTcpNoDelay;
182:                this .bufferSize = bufferSize;
183:                this .chunkSize = chunkSize;
184:                this .soTimeout = soTimeout;
185:                this .connectAddress = connectAddress;
186:                this .connectPort = connectPort;
187:            }
188:
189:            public void setConnectionToken(ConnectionToken dest)
190:                    throws Exception {
191:                ConnectionTokenMsg msg = new ConnectionTokenMsg(dest);
192:                getSocketMgr().sendMessage(msg);
193:            }
194:
195:            public void setEnabled(ConnectionToken dc, boolean enabled)
196:                    throws JMSException, Exception {
197:                EnableConnectionMsg msg = new EnableConnectionMsg(enabled);
198:                getSocketMgr().sendMessage(msg);
199:            }
200:
201:            public String getID() throws Exception {
202:                GetIDMsg msg = new GetIDMsg();
203:                getSocketMgr().sendMessage(msg);
204:                String id = msg.getID();
205:                return id;
206:            }
207:
208:            public TemporaryQueue getTemporaryQueue(ConnectionToken dc)
209:                    throws JMSException, Exception {
210:                TemporaryDestMsg msg = new TemporaryDestMsg(true);
211:                getSocketMgr().sendMessage(msg);
212:                TemporaryQueue dest = msg.getQueue();
213:                return dest;
214:            }
215:
216:            public TemporaryTopic getTemporaryTopic(ConnectionToken dc)
217:                    throws JMSException, Exception {
218:                TemporaryDestMsg msg = new TemporaryDestMsg(false);
219:                getSocketMgr().sendMessage(msg);
220:                TemporaryTopic dest = msg.getTopic();
221:                return dest;
222:            }
223:
224:            public void acknowledge(ConnectionToken dc,
225:                    AcknowledgementRequest item) throws JMSException, Exception {
226:                AcknowledgementRequestMsg msg = new AcknowledgementRequestMsg(
227:                        item);
228:                if (item.isAck())
229:                    getSocketMgr().sendMessage(msg);
230:                else
231:                    getSocketMgr().sendOneWay(msg);
232:            }
233:
234:            public void addMessage(ConnectionToken dc, SpyMessage val)
235:                    throws Exception {
236:                AddMsg msg = new AddMsg(val);
237:                getSocketMgr().sendMessage(msg);
238:            }
239:
240:            public SpyMessage[] browse(ConnectionToken dc, Destination dest,
241:                    String selector) throws JMSException, Exception {
242:                BrowseMsg msg = new BrowseMsg(dest, selector);
243:                getSocketMgr().sendMessage(msg);
244:                SpyMessage[] msgs = msg.getMessages();
245:                return msgs;
246:            }
247:
248:            public void checkID(String id) throws JMSException, Exception {
249:                CheckIDMsg msg = new CheckIDMsg(id);
250:                getSocketMgr().sendMessage(msg);
251:            }
252:
253:            public String checkUser(String username, String password)
254:                    throws JMSException, Exception {
255:                CheckUserMsg msg = new CheckUserMsg(username, password, false);
256:                getSocketMgr().sendMessage(msg);
257:                String clientID = msg.getID();
258:                return clientID;
259:            }
260:
261:            public String authenticate(String username, String password)
262:                    throws JMSException, Exception {
263:                CheckUserMsg msg = new CheckUserMsg(username, password, true);
264:                getSocketMgr().sendMessage(msg);
265:                String sessionID = msg.getID();
266:                return sessionID;
267:            }
268:
269:            public Object clone() throws CloneNotSupportedException {
270:                return super .clone();
271:            }
272:
273:            public ServerIL cloneServerIL() throws Exception {
274:                return (ServerIL) clone();
275:            }
276:
277:            public void connectionClosing(ConnectionToken dc)
278:                    throws JMSException, Exception {
279:                CloseMsg msg = new CloseMsg();
280:                try {
281:                    getSocketMgr().sendMessage(msg);
282:                } catch (IOException ignored) {
283:                }
284:                destroyConnection();
285:            }
286:
287:            public Queue createQueue(ConnectionToken dc, String destName)
288:                    throws JMSException, Exception {
289:                CreateDestMsg msg = new CreateDestMsg(destName, true);
290:                getSocketMgr().sendMessage(msg);
291:                Queue dest = msg.getQueue();
292:                return dest;
293:            }
294:
295:            public Topic createTopic(ConnectionToken dc, String destName)
296:                    throws JMSException, Exception {
297:                CreateDestMsg msg = new CreateDestMsg(destName, false);
298:                getSocketMgr().sendMessage(msg);
299:                Topic dest = msg.getTopic();
300:                return dest;
301:            }
302:
303:            public void deleteTemporaryDestination(ConnectionToken dc,
304:                    SpyDestination dest) throws JMSException, Exception {
305:                DeleteTemporaryDestMsg msg = new DeleteTemporaryDestMsg(dest);
306:                getSocketMgr().sendMessage(msg);
307:            }
308:
309:            public void destroySubscription(ConnectionToken dc,
310:                    DurableSubscriptionID id) throws JMSException, Exception {
311:                DeleteSubscriptionMsg msg = new DeleteSubscriptionMsg(id);
312:                getSocketMgr().sendMessage(msg);
313:            }
314:
315:            public void ping(ConnectionToken dc, long clientTime)
316:                    throws Exception {
317:                PingMsg msg = new PingMsg(clientTime, true);
318:                msg.getMsgID();
319:                getSocketMgr().sendReply(msg);
320:            }
321:
322:            public SpyMessage receive(ConnectionToken dc, int subscriberId,
323:                    long wait) throws Exception, Exception {
324:                ReceiveMsg msg = new ReceiveMsg(subscriberId, wait);
325:                getSocketMgr().sendMessage(msg);
326:                SpyMessage reply = msg.getMessage();
327:                return reply;
328:            }
329:
330:            public void subscribe(ConnectionToken dc,
331:                    org.jboss.mq.Subscription s) throws JMSException, Exception {
332:                SubscribeMsg msg = new SubscribeMsg(s);
333:                getSocketMgr().sendMessage(msg);
334:            }
335:
336:            public void transact(ConnectionToken dc, TransactionRequest t)
337:                    throws JMSException, Exception {
338:                TransactMsg msg = new TransactMsg(t);
339:                getSocketMgr().sendMessage(msg);
340:            }
341:
342:            public Xid[] recover(ConnectionToken dc, int flags)
343:                    throws Exception {
344:                RecoverMsg msg = new RecoverMsg(flags);
345:                getSocketMgr().sendMessage(msg);
346:                Xid[] reply = msg.getXids();
347:                return reply;
348:            }
349:
350:            public void unsubscribe(ConnectionToken dc, int subscriptionID)
351:                    throws JMSException, Exception {
352:                UnsubscribeMsg msg = new UnsubscribeMsg(subscriptionID);
353:                getSocketMgr().sendMessage(msg);
354:            }
355:
356:            final SocketManager getSocketMgr() throws Exception {
357:                if (socketMgr == null)
358:                    createConnection();
359:                return socketMgr;
360:            }
361:
362:            protected void checkConnection() throws Exception {
363:                if (socketMgr == null) {
364:                    createConnection();
365:                }
366:            }
367:
368:            /**
369:             * Used to establish a new connection to the server
370:             *
371:             * @exception Exception  Description of Exception
372:             */
373:            protected void createConnection() throws Exception {
374:                boolean tracing = log.isTraceEnabled();
375:
376:                /** Attempt to load the socket factory and if this fails, use the
377:                 * default socket factory impl.
378:                 */
379:                SocketFactory socketFactory = null;
380:                if (socketFactoryName != null) {
381:                    try {
382:                        ClassLoader loader = Thread.currentThread()
383:                                .getContextClassLoader();
384:                        Class factoryClass = loader
385:                                .loadClass(socketFactoryName);
386:                        socketFactory = (SocketFactory) factoryClass
387:                                .newInstance();
388:                    } catch (Exception e) {
389:                        log.debug("Failed to load socket factory: "
390:                                + socketFactoryName, e);
391:                    }
392:                }
393:                // Use the default socket factory
394:                if (socketFactory == null) {
395:                    socketFactory = SocketFactory.getDefault();
396:                }
397:
398:                // Look for a local address and port as properties
399:                String tmp = getProperty(LOCAL_ADDR);
400:                if (tmp != null)
401:                    this .localAddr = InetAddress.getByName(tmp);
402:                tmp = getProperty(LOCAL_PORT);
403:                if (tmp != null)
404:                    this .localPort = Integer.parseInt(tmp);
405:
406:                // Look for client side overrides of the server address/port
407:                InetAddress serverAddr = addr;
408:                int serverPort = port;
409:                tmp = getProperty(SERVER_ADDR);
410:                if (tmp == null)
411:                    tmp = connectAddress;
412:                if (tmp != null)
413:                    serverAddr = InetAddress.getByName(tmp);
414:                tmp = getProperty(SERVER_PORT);
415:                if (tmp != null)
416:                    serverPort = Integer.parseInt(tmp);
417:                else if (connectPort != 0)
418:                    serverPort = connectPort;
419:
420:                String useHostNameProp = getProperty(USE_SERVER_HOST);
421:                String serverHost = serverAddr.getHostAddress();
422:                if (Boolean.valueOf(useHostNameProp).booleanValue())
423:                    serverHost = serverAddr.getHostName();
424:
425:                int retries = 0;
426:                // Default to 10 retries, no delay in the absence of user override
427:                int maxRetries = 10;
428:                tmp = getProperty(RETRY_COUNT);
429:                if (tmp != null)
430:                    maxRetries = Integer.parseInt(tmp);
431:                long retryDelay = 0;
432:                tmp = getProperty(RETRY_DELAY);
433:                if (tmp != null) {
434:                    retryDelay = Long.parseLong(tmp);
435:                    if (retryDelay < 0)
436:                        retryDelay = 0;
437:                }
438:                if (tracing)
439:                    log.trace("Begin connect loop, maxRetries=" + maxRetries
440:                            + ", delay=" + retryDelay);
441:
442:                while (true) {
443:                    try {
444:                        if (tracing) {
445:                            log.trace("Connecting with addr=" + serverHost
446:                                    + ", port=" + serverPort + ", localAddr="
447:                                    + localAddr + ", localPort=" + localPort
448:                                    + ", socketFactory=" + socketFactory
449:                                    + ", enableTcpNoDelay=" + enableTcpNoDelay
450:                                    + ", bufferSize=" + bufferSize
451:                                    + ", chunkSize=" + chunkSize);
452:                        }
453:                        if (localAddr != null)
454:                            socket = socketFactory.createSocket(serverHost,
455:                                    serverPort, localAddr, localPort);
456:                        else
457:                            socket = socketFactory.createSocket(serverHost,
458:                                    serverPort);
459:                        break;
460:                    } catch (ConnectException e) {
461:                        if (++retries > maxRetries)
462:                            throw e;
463:                        if (tracing)
464:                            log.trace("Failed to connect, retries=" + retries,
465:                                    e);
466:                    }
467:                    try {
468:                        Thread.sleep(retryDelay);
469:                    } catch (InterruptedException e) {
470:                        break;
471:                    }
472:                }
473:
474:                socket.setTcpNoDelay(enableTcpNoDelay);
475:                if (soTimeout != 0)
476:                    socket.setSoTimeout(soTimeout);
477:                socketMgr = new SocketManager(socket);
478:                socketMgr.setBufferSize(bufferSize);
479:                socketMgr.setChunkSize(chunkSize);
480:                socketMgr.start(Connection.getThreadGroup());
481:            }
482:
483:            /**
484:             * Used to close the current connection with the server
485:             *
486:             */
487:            protected void destroyConnection() {
488:                try {
489:                    if (socket != null) {
490:                        try {
491:                            socketMgr.stop();
492:                        } finally {
493:                            socket.close();
494:                        }
495:                    }
496:                } catch (IOException ignore) {
497:                }
498:            }
499:
500:            private String getProperty(String name) {
501:                String value = null;
502:                try {
503:                    value = System.getProperty(name);
504:                } catch (Throwable ignored) {
505:                    log.trace("Cannot retrieve system property " + name);
506:                }
507:                return value;
508:            }
509:        }
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