Source Code Cross Referenced for LoadTest.java in  » Sevlet-Container » apache-tomcat-6.0.14 » org » apache » catalina » tribes » demos » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Sevlet Container » apache tomcat 6.0.14 » org.apache.catalina.tribes.demos 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * Licensed to the Apache Software Foundation (ASF) under one or more
003:         * contributor license agreements.  See the NOTICE file distributed with
004:         * this work for additional information regarding copyright ownership.
005:         * The ASF licenses this file to You under the Apache License, Version 2.0
006:         * (the "License"); you may not use this file except in compliance with
007:         * the License.  You may obtain a copy of the License at
008:         * 
009:         *      http://www.apache.org/licenses/LICENSE-2.0
010:         * 
011:         * Unless required by applicable law or agreed to in writing, software
012:         * distributed under the License is distributed on an "AS IS" BASIS,
013:         * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014:         * See the License for the specific language governing permissions and
015:         * limitations under the License.
016:         */
017:        package org.apache.catalina.tribes.demos;
018:
019:        import java.io.Serializable;
020:        import java.util.Random;
021:
022:        import org.apache.catalina.tribes.ByteMessage;
023:        import org.apache.catalina.tribes.ChannelException;
024:        import org.apache.catalina.tribes.ChannelListener;
025:        import org.apache.catalina.tribes.ManagedChannel;
026:        import org.apache.catalina.tribes.Member;
027:        import org.apache.catalina.tribes.MembershipListener;
028:        import org.apache.catalina.tribes.io.XByteBuffer;
029:        import org.apache.catalina.tribes.Channel;
030:        import java.io.Externalizable;
031:        import org.apache.juli.logging.Log;
032:        import org.apache.juli.logging.LogFactory;
033:
034:        /**
035:         * <p>Title: </p>
036:         *
037:         * <p>Description: </p>
038:         *
039:         * <p>Company: </p>
040:         *
041:         * @author not attributable
042:         * @version 1.0
043:         */
044:        public class LoadTest implements  MembershipListener, ChannelListener,
045:                Runnable {
046:            protected static Log log = LogFactory.getLog(LoadTest.class);
047:            public static int size = 24000;
048:            public static Object mutex = new Object();
049:            public boolean doRun = true;
050:
051:            public long bytesReceived = 0;
052:            public float mBytesReceived = 0;
053:            public int messagesReceived = 0;
054:            public boolean send = true;
055:            public boolean debug = false;
056:            public int msgCount = 100;
057:            ManagedChannel channel = null;
058:            public int statsInterval = 10000;
059:            public long pause = 0;
060:            public boolean breakonChannelException = false;
061:            public boolean async = false;
062:            public long receiveStart = 0;
063:            public int channelOptions = Channel.SEND_OPTIONS_DEFAULT;
064:
065:            static int messageSize = 0;
066:
067:            public static long messagesSent = 0;
068:            public static long messageStartSendTime = 0;
069:            public static long messageEndSendTime = 0;
070:            public static int threadCount = 0;
071:
072:            public static synchronized void startTest() {
073:                threadCount++;
074:                if (messageStartSendTime == 0)
075:                    messageStartSendTime = System.currentTimeMillis();
076:            }
077:
078:            public static synchronized void endTest() {
079:                threadCount--;
080:                if (messageEndSendTime == 0 && threadCount == 0)
081:                    messageEndSendTime = System.currentTimeMillis();
082:            }
083:
084:            public static synchronized long addSendStats(long count) {
085:                messagesSent += count;
086:                return 0l;
087:            }
088:
089:            private static void printSendStats(long counter, int messageSize) {
090:                float cnt = (float) counter;
091:                float size = (float) messageSize;
092:                float time = (float) (System.currentTimeMillis() - messageStartSendTime) / 1000f;
093:                log.info("****SEND STATS-" + Thread.currentThread().getName()
094:                        + "*****" + "\n\tMessage count:" + counter
095:                        + "\n\tTotal bytes  :" + (long) (size * cnt)
096:                        + "\n\tTotal seconds:" + (time) + "\n\tBytes/second :"
097:                        + (size * cnt / time) + "\n\tMBytes/second:"
098:                        + (size * cnt / time / 1024f / 1024f));
099:            }
100:
101:            public LoadTest(ManagedChannel channel, boolean send, int msgCount,
102:                    boolean debug, long pause, int stats, boolean breakOnEx) {
103:                this .channel = channel;
104:                this .send = send;
105:                this .msgCount = msgCount;
106:                this .debug = debug;
107:                this .pause = pause;
108:                this .statsInterval = stats;
109:                this .breakonChannelException = breakOnEx;
110:            }
111:
112:            public void run() {
113:
114:                long counter = 0;
115:                long total = 0;
116:                LoadMessage msg = new LoadMessage();
117:                int messageSize = LoadTest.messageSize;
118:
119:                try {
120:                    startTest();
121:                    while (total < msgCount) {
122:                        if (channel.getMembers().length == 0 || (!send)) {
123:                            synchronized (mutex) {
124:                                try {
125:                                    mutex.wait();
126:                                } catch (InterruptedException x) {
127:                                    log.info("Thread interrupted from wait");
128:                                }
129:                            }
130:                        } else {
131:                            try {
132:                                //msg.setMsgNr((int)++total);
133:                                counter++;
134:                                if (debug) {
135:                                    printArray(msg.getMessage());
136:                                }
137:                                channel.send(channel.getMembers(), msg,
138:                                        channelOptions);
139:                                if (pause > 0) {
140:                                    if (debug)
141:                                        System.out
142:                                                .println("Pausing sender for "
143:                                                        + pause + " ms.");
144:                                    Thread.sleep(pause);
145:                                }
146:                            } catch (ChannelException x) {
147:                                if (debug)
148:                                    log.error("Unable to send message:"
149:                                            + x.getMessage(), x);
150:                                log.error("Unable to send message:"
151:                                        + x.getMessage());
152:                                ChannelException.FaultyMember[] faulty = x
153:                                        .getFaultyMembers();
154:                                for (int i = 0; i < faulty.length; i++)
155:                                    log.error("Faulty: " + faulty[i]);
156:                                --counter;
157:                                if (this .breakonChannelException)
158:                                    throw x;
159:                            }
160:                        }
161:                        if ((counter % statsInterval) == 0 && (counter > 0)) {
162:                            //add to the global counter
163:                            counter = addSendStats(counter);
164:                            //print from the global counter
165:                            //printSendStats(LoadTest.messagesSent, LoadTest.messageSize, LoadTest.messageSendTime);
166:                            printSendStats(LoadTest.messagesSent,
167:                                    LoadTest.messageSize);
168:
169:                        }
170:
171:                    }
172:                } catch (Exception x) {
173:                    log.error("Captured error while sending:" + x.getMessage());
174:                    if (debug)
175:                        log.error("", x);
176:                    printSendStats(LoadTest.messagesSent, LoadTest.messageSize);
177:                }
178:                endTest();
179:            }
180:
181:            /**
182:             * memberAdded
183:             *
184:             * @param member Member
185:             * @todo Implement this org.apache.catalina.tribes.MembershipListener
186:             *   method
187:             */
188:            public void memberAdded(Member member) {
189:                log.info("Member added:" + member);
190:                synchronized (mutex) {
191:                    mutex.notifyAll();
192:                }
193:            }
194:
195:            /**
196:             * memberDisappeared
197:             *
198:             * @param member Member
199:             * @todo Implement this org.apache.catalina.tribes.MembershipListener
200:             *   method
201:             */
202:            public void memberDisappeared(Member member) {
203:                log.info("Member disappeared:" + member);
204:            }
205:
206:            public boolean accept(Serializable msg, Member mbr) {
207:                return (msg instanceof  LoadMessage)
208:                        || (msg instanceof  ByteMessage);
209:            }
210:
211:            public void messageReceived(Serializable msg, Member mbr) {
212:                if (receiveStart == 0)
213:                    receiveStart = System.currentTimeMillis();
214:                if (debug) {
215:                    if (msg instanceof  LoadMessage) {
216:                        printArray(((LoadMessage) msg).getMessage());
217:                    }
218:                }
219:
220:                if (msg instanceof  ByteMessage && !(msg instanceof  LoadMessage)) {
221:                    LoadMessage tmp = new LoadMessage();
222:                    tmp.setMessage(((ByteMessage) msg).getMessage());
223:                    msg = tmp;
224:                    tmp = null;
225:                }
226:
227:                bytesReceived += ((LoadMessage) msg).getMessage().length;
228:                mBytesReceived += ((float) ((LoadMessage) msg).getMessage().length) / 1024f / 1024f;
229:                messagesReceived++;
230:                if ((messagesReceived % statsInterval) == 0
231:                        || (messagesReceived == msgCount)) {
232:                    float bytes = (float) (((LoadMessage) msg).getMessage().length * messagesReceived);
233:                    float seconds = ((float) (System.currentTimeMillis() - receiveStart)) / 1000f;
234:                    log.info("****RECEIVE STATS-"
235:                            + Thread.currentThread().getName() + "*****"
236:                            + "\n\tMessage count :" + (long) messagesReceived
237:                            + "\n\tMessage/sec   :" + messagesReceived
238:                            / seconds + "\n\tTotal bytes   :" + (long) bytes
239:                            + "\n\tTotal mbytes  :" + (long) mBytesReceived
240:                            + "\n\tTime since 1st:" + seconds + " seconds"
241:                            + "\n\tBytes/second  :" + (bytes / seconds)
242:                            + "\n\tMBytes/second :"
243:                            + (mBytesReceived / seconds) + "\n");
244:
245:                }
246:            }
247:
248:            public static void printArray(byte[] data) {
249:                System.out.print("{");
250:                for (int i = 0; i < data.length; i++) {
251:                    System.out.print(data[i]);
252:                    System.out.print(",");
253:                }
254:                System.out.println("} size:" + data.length);
255:            }
256:
257:            //public static class LoadMessage implements Serializable  {
258:            public static class LoadMessage extends ByteMessage implements 
259:                    Serializable {
260:
261:                public static byte[] outdata = new byte[size];
262:                public static Random r = new Random(System.currentTimeMillis());
263:
264:                public static int getMessageSize(LoadMessage msg) {
265:                    int messageSize = msg.getMessage().length;
266:                    if (((Object) msg) instanceof  ByteMessage)
267:                        return messageSize;
268:                    try {
269:                        messageSize = XByteBuffer.serialize(new LoadMessage()).length;
270:                        log.info("Average message size:" + messageSize
271:                                + " bytes");
272:                    } catch (Exception x) {
273:                        log.error("Unable to calculate test message size.", x);
274:                    }
275:                    return messageSize;
276:                }
277:
278:                static {
279:                    r.nextBytes(outdata);
280:                }
281:
282:                protected byte[] message = getMessage();
283:
284:                public LoadMessage() {
285:                }
286:
287:                public byte[] getMessage() {
288:                    if (message == null) {
289:                        message = outdata;
290:                    }
291:                    return message;
292:                }
293:
294:                public void setMessage(byte[] data) {
295:                    this .message = data;
296:                }
297:            }
298:
299:            public static void usage() {
300:                System.out.println("Tribes Load tester.");
301:                System.out
302:                        .println("The load tester can be used in sender or received mode or both");
303:                System.out
304:                        .println("Usage:\n\t"
305:                                + "java LoadTest [options]\n\t"
306:                                + "Options:\n\t\t"
307:                                + "[-mode receive|send|both]  \n\t\t"
308:                                + "[-startoptions startflags (default is Channel.DEFAULT) ]  \n\t\t"
309:                                + "[-debug]  \n\t\t"
310:                                + "[-count messagecount]  \n\t\t"
311:                                + "[-stats statinterval]  \n\t\t"
312:                                + "[-pause nrofsecondstopausebetweensends]  \n\t\t"
313:                                + "[-threads numberofsenderthreads]  \n\t\t"
314:                                + "[-size messagesize]  \n\t\t"
315:                                + "[-sendoptions channeloptions]  \n\t\t"
316:                                + "[-break (halts execution on exception)]\n"
317:                                + "[-shutdown (issues a channel.stop() command after send is completed)]\n"
318:                                + "\tChannel options:"
319:                                + ChannelCreator.usage()
320:                                + "\n\n"
321:                                + "Example:\n\t"
322:                                + "java LoadTest -port 4004\n\t"
323:                                + "java LoadTest -bind 192.168.0.45 -port 4005\n\t"
324:                                + "java LoadTest -bind 192.168.0.45 -port 4005 -mbind 192.168.0.45 -count 100 -stats 10\n");
325:            }
326:
327:            public static void main(String[] args) throws Exception {
328:                boolean send = true;
329:                boolean debug = false;
330:                long pause = 0;
331:                int count = 1000000;
332:                int stats = 10000;
333:                boolean breakOnEx = false;
334:                int threads = 1;
335:                boolean shutdown = false;
336:                int startoptions = Channel.DEFAULT;
337:                int channelOptions = Channel.SEND_OPTIONS_DEFAULT;
338:                if (args.length == 0) {
339:                    args = new String[] { "-help" };
340:                }
341:                for (int i = 0; i < args.length; i++) {
342:                    if ("-threads".equals(args[i])) {
343:                        threads = Integer.parseInt(args[++i]);
344:                    } else if ("-count".equals(args[i])) {
345:                        count = Integer.parseInt(args[++i]);
346:                        System.out.println("Sending " + count + " messages.");
347:                    } else if ("-pause".equals(args[i])) {
348:                        pause = Long.parseLong(args[++i]) * 1000;
349:                    } else if ("-break".equals(args[i])) {
350:                        breakOnEx = true;
351:                    } else if ("-shutdown".equals(args[i])) {
352:                        shutdown = true;
353:                    } else if ("-stats".equals(args[i])) {
354:                        stats = Integer.parseInt(args[++i]);
355:                        System.out.println("Stats every " + stats + " message");
356:                    } else if ("-sendoptions".equals(args[i])) {
357:                        channelOptions = Integer.parseInt(args[++i]);
358:                        System.out.println("Setting send options to "
359:                                + channelOptions);
360:                    } else if ("-startoptions".equals(args[i])) {
361:                        startoptions = Integer.parseInt(args[++i]);
362:                        System.out.println("Setting start options to "
363:                                + startoptions);
364:                    } else if ("-size".equals(args[i])) {
365:                        size = Integer.parseInt(args[++i]) - 4;
366:                        System.out.println("Message size will be:" + (size + 4)
367:                                + " bytes");
368:                    } else if ("-mode".equals(args[i])) {
369:                        if ("receive".equals(args[++i]))
370:                            send = false;
371:                    } else if ("-debug".equals(args[i])) {
372:                        debug = true;
373:                    } else if ("-help".equals(args[i])) {
374:                        usage();
375:                        System.exit(1);
376:                    }
377:                }
378:
379:                ManagedChannel channel = (ManagedChannel) ChannelCreator
380:                        .createChannel(args);
381:
382:                LoadTest test = new LoadTest(channel, send, count, debug,
383:                        pause, stats, breakOnEx);
384:                test.channelOptions = channelOptions;
385:                LoadMessage msg = new LoadMessage();
386:
387:                messageSize = LoadMessage.getMessageSize(msg);
388:                channel.addChannelListener(test);
389:                channel.addMembershipListener(test);
390:                channel.start(startoptions);
391:                Runtime.getRuntime().addShutdownHook(new Shutdown(channel));
392:                while (threads > 1) {
393:                    Thread t = new Thread(test);
394:                    t.setDaemon(true);
395:                    t.start();
396:                    threads--;
397:                    test = new LoadTest(channel, send, count, debug, pause,
398:                            stats, breakOnEx);
399:                    test.channelOptions = channelOptions;
400:                }
401:                test.run();
402:                if (shutdown && send)
403:                    channel.stop(channel.DEFAULT);
404:                System.out
405:                        .println("System test complete, sleeping to let threads finish.");
406:                Thread.sleep(60 * 1000 * 60);
407:            }
408:
409:            public static class Shutdown extends Thread {
410:                ManagedChannel channel = null;
411:
412:                public Shutdown(ManagedChannel channel) {
413:                    this .channel = channel;
414:                }
415:
416:                public void run() {
417:                    System.out.println("Shutting down...");
418:                    SystemExit exit = new SystemExit(5000);
419:                    exit.setDaemon(true);
420:                    exit.start();
421:                    try {
422:                        channel.stop(channel.DEFAULT);
423:
424:                    } catch (Exception x) {
425:                        x.printStackTrace();
426:                    }
427:                    System.out.println("Channel stopped.");
428:                }
429:            }
430:
431:            public static class SystemExit extends Thread {
432:                private long delay;
433:
434:                public SystemExit(long delay) {
435:                    this .delay = delay;
436:                }
437:
438:                public void run() {
439:                    try {
440:                        Thread.sleep(delay);
441:                    } catch (Exception x) {
442:                        x.printStackTrace();
443:                    }
444:                    System.exit(0);
445:
446:                }
447:            }
448:
449:        }
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