Source Code Cross Referenced for Container.java in  » Net » Terracotta » com » tc » simulator » container » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Net » Terracotta » com.tc.simulator.container 
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.simulator.container;
006:
007:        import EDU.oswego.cs.dl.util.concurrent.SynchronizedBoolean;
008:
009:        import com.tc.simulator.app.Application;
010:        import com.tc.simulator.app.ApplicationBuilder;
011:        import com.tc.simulator.app.ApplicationInstantiationException;
012:        import com.tc.simulator.app.ErrorContext;
013:        import com.tc.simulator.app.GlobalIdGenerator;
014:        import com.tc.simulator.control.Control;
015:        import com.tc.simulator.control.TCBrokenBarrierException;
016:        import com.tc.simulator.listener.MutationCompletionListener;
017:        import com.tc.simulator.listener.OutputListener;
018:        import com.tc.simulator.listener.ResultsListener;
019:        import com.tc.simulator.listener.StatsListenerFactory;
020:        import com.tc.util.Assert;
021:        import com.tcsimulator.ControlImpl;
022:        import com.tcsimulator.listener.ApplicationListenerProvider;
023:
024:        import java.util.ArrayList;
025:        import java.util.Iterator;
026:        import java.util.List;
027:
028:        public final class Container implements  Runnable {
029:            private static final boolean DEBUG = false;
030:
031:            private final ContainerConfig config;
032:            private final ContainerState containerState;
033:            private final GlobalIdGenerator idGenerator;
034:            private final Control control;
035:            private final ResultsListener resultsListener;
036:            private final ApplicationBuilder applicationBuilder;
037:            private final String globalId;
038:            private final boolean isMutateValidateTest;
039:            private final boolean isMutator;
040:            private final MutationCompletionListener mutationCompletionListener;
041:            private final ControlImpl applicationControl;
042:
043:            public Container(ContainerConfig config,
044:                    ContainerStateFactory containerStateFactory,
045:                    GlobalIdGenerator idGenerator, Control control,
046:                    ResultsListener resultsListener,
047:                    ApplicationBuilder applicationBuilder) {
048:                this (config, containerStateFactory, idGenerator, control,
049:                        resultsListener, applicationBuilder, false, true);
050:            }
051:
052:            public Container(ContainerConfig config,
053:                    ContainerStateFactory containerStateFactory,
054:                    GlobalIdGenerator idGenerator, Control control,
055:                    ResultsListener resultsListener,
056:                    ApplicationBuilder applicationBuilder,
057:                    boolean isMutateValidateTest, boolean isMutator) {
058:                this .config = config;
059:                this .idGenerator = idGenerator;
060:                this .control = control;
061:                this .resultsListener = resultsListener;
062:                this .applicationBuilder = applicationBuilder;
063:                this .isMutateValidateTest = isMutateValidateTest;
064:                this .isMutator = isMutator;
065:                this .globalId = this .idGenerator.nextId() + "";
066:
067:                applicationControl = new ControlImpl(this .config
068:                        .getApplicationInstanceCount(), this .control);
069:                applicationControl.setExecutionTimeout(this .config
070:                        .getApplicationExecutionTimeout());
071:
072:                mutationCompletionListener = applicationControl;
073:
074:                this .containerState = containerStateFactory
075:                        .newContainerState(this .globalId);
076:                Assert.assertNoNullElements(new Object[] { this .config,
077:                        this .idGenerator, this .control, this .resultsListener,
078:                        this .applicationBuilder });
079:            }
080:
081:            /**
082:             * Make applications go.
083:             */
084:            public synchronized void run() {
085:                debugPrintln("isMutateValidateTest=[" + isMutateValidateTest
086:                        + "]");
087:
088:                Thread.currentThread().setContextClassLoader(
089:                        applicationBuilder.getContextClassLoader());
090:
091:                SynchronizedBoolean isRunning = new SynchronizedBoolean(true);
092:                try {
093:                    if (!validateConfig())
094:                        return;
095:                    debugPrintln("***** config is alright");
096:
097:                    if (isMutator) {
098:                        debugPrintln("******* isMutator=[" + isMutator + "]");
099:                        if (!waitForStart())
100:                            return;
101:                    } else {
102:                        if (!waitForMutationCompleteTestWide())
103:                            return;
104:                    }
105:
106:                    ContainerExecutionInstance containerExecution = new ContainerExecutionInstance();
107:
108:                    startInstances(containerExecution);
109:
110:                    if (isMutateValidateTest) {
111:                        if (isMutator) {
112:                            // wait for all app instances to complete mutation
113:                            if (!waitForMutationComplete())
114:                                return;
115:                            control.notifyMutationComplete();
116:                        }
117:                        if (!waitForValidationStart())
118:                            return;
119:                        control.notifyValidationStart();
120:                    }
121:
122:                    if (!waitForAllComplete())
123:                        return;
124:
125:                    notifyResult(containerExecution);
126:
127:                } catch (Throwable t) {
128:                    notifyError("Unexpected error executing application.", t);
129:                } finally {
130:                    isRunning.set(false);
131:                    control.notifyComplete();
132:                    try {
133:                        this .control.waitForAllComplete(this .config
134:                                .getApplicationExecutionTimeout());
135:                    } catch (InterruptedException e) {
136:                        e.printStackTrace();
137:                    }
138:                }
139:            }
140:
141:            private void debugPrintln(String s) {
142:                if (DEBUG) {
143:                    System.err.println(s);
144:                }
145:            }
146:
147:            private boolean validateConfig() {
148:                if (this .config.getContainerStartTimeout() < 1) {
149:                    notifyError(new ContainerConfigException(
150:                            "Container start timeout must be greater than zero.",
151:                            ContainerConfigException.INVALID_CONTAINER_START_TIMEOUT));
152:                    return false;
153:                }
154:                if (this .config.getApplicationStartTimeout() < 1) {
155:                    notifyError(new ContainerConfigException(
156:                            "Application start timeout must be greater than zero.",
157:                            ContainerConfigException.INVALID_APPLICATION_START_TIMEOUT));
158:                    return false;
159:                }
160:                if (this .config.getApplicationExecutionTimeout() == 0) {
161:                    notifyError(new ContainerConfigException(
162:                            "Application execution timeout must be greater than or less than zero.",
163:                            ContainerConfigException.INVALID_APPLICATION_EXECUTION_TIMEOUT));
164:                    return false;
165:                }
166:                if (this .config.getApplicationInstanceCount() < 1) {
167:                    notifyError(new ContainerConfigException(
168:                            "Application instance count must be greater than zero.",
169:                            ContainerConfigException.INVALID_APPLICATION_INSTANCE_COUNT));
170:                    return false;
171:                }
172:                return true;
173:            }
174:
175:            private boolean waitForStart() throws TCBrokenBarrierException,
176:                    InterruptedException {
177:                boolean rv = false;
178:                println("Waiting for all containers to start...");
179:                this .control.waitForStart();
180:                rv = true;
181:                println("Done waiting for all containers to start.");
182:                return rv;
183:            }
184:
185:            private boolean waitForMutationCompleteTestWide()
186:                    throws InterruptedException {
187:                boolean rv = false;
188:                println("Waiting for all containers to finish mutation...");
189:                this .control.waitForMutationComplete(config
190:                        .getApplicationExecutionTimeout());
191:                rv = true;
192:                println("Done waiting for all containers to finish mutation.");
193:                return rv;
194:            }
195:
196:            /*********************************************************************************************************************
197:             * Private stuff
198:             */
199:
200:            private ApplicationExecutionInstance newExecutionInstance(
201:                    ContainerExecutionInstance containerExecution)
202:                    throws ApplicationInstantiationException {
203:                String appId = this .idGenerator.nextId() + "";
204:                System.err.println("Creating new execution instance: " + appId);
205:                OutputListener outputListener = this .containerState
206:                        .newOutputListener();
207:                ApplicationExecutionInstance executionInstance = new ApplicationExecutionInstance(
208:                        containerExecution, applicationControl,
209:                        this .containerState);
210:
211:                ApplicationListenerProvider appListeners = new ApplicationListenerProvider(
212:                        outputListener, executionInstance,
213:                        this .mutationCompletionListener, this .containerState);
214:
215:                if (isMutateValidateTest) {
216:                    debugPrintln("****** Container:  appId=[" + appId
217:                            + "] isMutator=[" + isMutator
218:                            + "] isMutateValidateTest=[" + isMutateValidateTest
219:                            + "]");
220:                    applicationBuilder.setAppConfigAttribute(appId, ""
221:                            + isMutator);
222:                }
223:
224:                Application application = applicationBuilder.newApplication(
225:                        appId, appListeners);
226:                executionInstance.setApplication(application);
227:
228:                return executionInstance;
229:            }
230:
231:            private void println(String msg) {
232:                System.out.println("Container: " + msg);
233:            }
234:
235:            private void startInstances(
236:                    ContainerExecutionInstance containerExecution)
237:                    throws ApplicationInstantiationException {
238:                println("Starting application execution...");
239:                for (int i = 0; i < config.getApplicationInstanceCount(); i++) {
240:                    println("exeution " + (i + 1) + " of "
241:                            + config.getApplicationInstanceCount());
242:                    ApplicationExecutionInstance executionInstance = newExecutionInstance(containerExecution);
243:                    containerExecution.addExecution(executionInstance);
244:                    executionInstance.start();
245:                }
246:                println("All application executions are started.");
247:            }
248:
249:            private boolean waitForAllComplete() throws InterruptedException {
250:                println("Waiting for all applications to complete.  Timeout: "
251:                        + config.getApplicationExecutionTimeout());
252:                if (!applicationControl.waitForAllComplete(config
253:                        .getApplicationExecutionTimeout())) {
254:                    resultsListener.notifyExecutionTimeout();
255:                    notifyFailure();
256:                    println("Application execution timed out.");
257:                    return false;
258:                }
259:                println("Application execution completed.");
260:                return true;
261:            }
262:
263:            private boolean waitForMutationComplete()
264:                    throws InterruptedException {
265:                println("Waiting for all applications to finish mutation.  Timeout: "
266:                        + config.getApplicationExecutionTimeout());
267:                if (!applicationControl.waitForMutationComplete(config
268:                        .getApplicationExecutionTimeout())) {
269:                    resultsListener.notifyExecutionTimeout();
270:                    notifyFailure();
271:                    println("Application execution timed out.");
272:                    return false;
273:                }
274:                println("Application mutation completed.");
275:                return true;
276:            }
277:
278:            private boolean waitForValidationStart()
279:                    throws InterruptedException {
280:                println("Waiting for all applications/participants to be ready to begin validation.  Timeout: "
281:                        + config.getApplicationExecutionTimeout());
282:                if (!applicationControl.waitForValidationStart(config
283:                        .getApplicationExecutionTimeout())) {
284:                    resultsListener.notifyExecutionTimeout();
285:                    notifyFailure();
286:                    println("Application execution timed out.");
287:                    return false;
288:                }
289:                println("Application ready to start validation.");
290:                return true;
291:            }
292:
293:            private void notifyError(Throwable t) {
294:                notifyError("", t);
295:            }
296:
297:            private void notifyError(String message, Throwable t) {
298:                notifyError(new ErrorContext(message, t));
299:            }
300:
301:            private void notifyError(ErrorContext ctxt) {
302:                ctxt.dump(System.err);
303:                this .resultsListener.notifyError(ctxt);
304:                notifyFailure();
305:            }
306:
307:            private void notifyFailure() {
308:                System.err.println(Thread.currentThread() + ": failure");
309:                Thread.dumpStack();
310:                this .resultsListener.notifyResult(new ContainerResult());
311:            }
312:
313:            private void notifyResult(
314:                    ContainerExecutionInstance containerExecution) {
315:                this .resultsListener.notifyResult(new ContainerResult(
316:                        containerExecution));
317:            }
318:
319:            private ApplicationRunner newApplicationRunner(Control appControl,
320:                    ResultsListener appRunnerResultsListener,
321:                    Application application,
322:                    StatsListenerFactory statsListenerFactory) {
323:
324:                ApplicationRunnerConfig exeConfig = new ApplicationRunnerConfig() {
325:                    public long getStartTimeout() {
326:                        return config.getApplicationStartTimeout();
327:                    }
328:                };
329:
330:                ApplicationRunner runner = new ApplicationRunner(exeConfig,
331:                        appControl, appRunnerResultsListener, application,
332:                        statsListenerFactory);
333:
334:                return runner;
335:            }
336:
337:            /*********************************************************************************************************************
338:             * Helper classes.
339:             */
340:
341:            static final class ContainerExecutionInstance {
342:                private final List executions = new ArrayList();
343:                private boolean applicationStartTimeout = false;
344:                private boolean applicationExecutionTimeout = false;
345:
346:                synchronized void addExecution(
347:                        ApplicationExecutionInstance execution) {
348:                    this .executions.add(execution);
349:                }
350:
351:                synchronized int getExecutionCount() {
352:                    return this .executions.size();
353:                }
354:
355:                synchronized void notifyApplicationStartTimeout() {
356:                    this .applicationStartTimeout = true;
357:                }
358:
359:                synchronized void notifyApplicationExecutionTimeout() {
360:                    this .applicationExecutionTimeout = true;
361:                }
362:
363:                private synchronized boolean compileResults() {
364:                    boolean result = true;
365:                    for (Iterator i = executions.iterator(); i.hasNext();) {
366:                        ApplicationExecutionInstance execution = (ApplicationExecutionInstance) i
367:                                .next();
368:                        if (!execution.application
369:                                .interpretResult(execution.result))
370:                            result = false;
371:                    }
372:                    return result;
373:                }
374:
375:                synchronized boolean getResult() {
376:                    boolean compiledResults = compileResults();
377:                    System.err.println("start timeout: "
378:                            + this .applicationStartTimeout);
379:                    System.err.println("execution timeout: "
380:                            + this .applicationExecutionTimeout);
381:                    System.err.println("compiled results: " + compiledResults);
382:                    return !this .applicationStartTimeout
383:                            && !this .applicationExecutionTimeout
384:                            && compiledResults;
385:                }
386:            }
387:
388:            final class ApplicationExecutionInstance implements  ResultsListener {
389:                private final ContainerExecutionInstance containerExecution;
390:                private final Control appControl;
391:                private Application application;
392:                private Object result;
393:                private final StatsListenerFactory statsListenerFactory;
394:
395:                ApplicationExecutionInstance(
396:                        ContainerExecutionInstance containerExecution,
397:                        Control control,
398:                        StatsListenerFactory statsListenerFactory) {
399:                    this .containerExecution = containerExecution;
400:                    this .appControl = control;
401:                    this .statsListenerFactory = statsListenerFactory;
402:                }
403:
404:                void setApplication(Application app) {
405:                    this .application = app;
406:                }
407:
408:                void start() {
409:                    ApplicationRunner runner = newApplicationRunner(appControl,
410:                            this , this .application, this .statsListenerFactory);
411:
412:                    ClassLoader loader = application.getClass()
413:                            .getClassLoader();
414:                    Thread thread = new Thread(runner);
415:                    thread.setContextClassLoader(loader);
416:                    thread.start();
417:                }
418:
419:                Application getApplication() {
420:                    return this .application;
421:                }
422:
423:                public void setGlobalId(long globalId) {
424:                    return;
425:                }
426:
427:                public void notifyStartTimeout() {
428:                    this .containerExecution.notifyApplicationStartTimeout();
429:                }
430:
431:                public void notifyExecutionTimeout() {
432:                    this .containerExecution.notifyApplicationExecutionTimeout();
433:                }
434:
435:                public void notifyError(ErrorContext ectxt) {
436:                    Container.this .notifyError(ectxt);
437:                }
438:
439:                public void notifyResult(Object theResult) {
440:                    this .result = theResult;
441:                }
442:
443:                Object getResult() {
444:                    return this.result;
445:                }
446:
447:            }
448:
449:        }
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