How to use killProcess method of org.evomaster.client.java.controller.ExternalSutController class

Best EvoMaster code snippet using org.evomaster.client.java.controller.ExternalSutController.killProcess

Source:ExternalSutController.java

...106        /*107            the following thread is important to make sure that the external process is killed108            when current process ends109        */110        processKillHook = new Thread(() -> killProcess());111        Runtime.getRuntime().addShutdownHook(processKillHook);112        //we need a mechanism to wait until the SUT is ready113        latch = new CountDownLatch(1);114        List<String> command = new ArrayList<>();115        command.add("java");116        if (instrumentation) {117            if (serverController == null) {118                serverController = new ServerController();119            }120            int port = serverController.startServer();121            command.add("-D" + InputProperties.EXTERNAL_PORT_PROP + "=" + port);122            String driver = getDatabaseDriverName();123            if (driver != null && !driver.isEmpty()) {124                command.add("-D" + InputProperties.SQL_DRIVER + "=" + driver);125            }126            String jarPath = JarAgentLocator.getAgentJarPath();127            if (jarPath == null) {128                throw new IllegalStateException("Cannot locate JAR file with EvoMaster Java Agent");129            }130            command.add("-javaagent:" + jarPath + "=" + getPackagePrefixesToCover());131        }132        for (String s : getJVMParameters()) {133            if (s != null) {134                String token = s.trim();135                if (!token.isEmpty()) {136                    command.add(token);137                }138            }139        }140        if (command.stream().noneMatch(s -> s.startsWith("-Xmx"))) {141            command.add("-Xmx2G");142        }143        if (command.stream().noneMatch(s -> s.startsWith("-Xms"))) {144            command.add("-Xms1G");145        }146        command.add("-jar");147        command.add(getPathToExecutableJar());148        for (String s : getInputParameters()) {149            if (s != null) {150                String token = s.trim();151                if (!token.isEmpty()) {152                    command.add(token);153                }154            }155        }156        SimpleLogger.info("Going to start SUT with command:\n" + String.join(" ", command));157        // now start the process158        ProcessBuilder builder = new ProcessBuilder(command);159        builder.redirectErrorStream(true);160        try {161            process = builder.start();162        } catch (IOException e) {163            SimpleLogger.error("Failed to start external process", e);164            return null;165        }166        //this is not only needed for debugging, but also to check for when SUT is ready167        startExternalProcessPrinter();168        if (instrumentation && serverController != null) {169            boolean connected = serverController.waitForIncomingConnection();170            if (!connected) {171                SimpleLogger.error("Could not establish connection to retrieve code metrics");172                return null;173            }174        }175        //need to block until server is ready176        long timeout = getMaxAwaitForInitializationInSeconds();177        boolean completed;178        try {179            completed = latch.await(timeout, TimeUnit.SECONDS);180        } catch (InterruptedException e) {181            SimpleLogger.error("Interrupted controller");182            stopSut();183            return null;184        }185        if(! completed){186            SimpleLogger.error("SUT has not started properly within " + timeout + " seconds");187            if(errorBuffer != null) {188                SimpleLogger.error("SUT output:\n" + errorBuffer.toString());189            }190            stopSut();191            return null;192        }193        if (!isSutRunning()) {194            SimpleLogger.error("SUT started but then terminated. Likely a possible misconfiguration");195            if(errorBuffer != null) {196                SimpleLogger.error("SUT output:\n" + errorBuffer.toString());197            }198            //note: actual process might still be running due to Java Agent we started199            stopSut();200            return null;201        }202        if (!initialized) {203            //this could happen if SUT is hanging for some reason204            SimpleLogger.error("SUT is started but not initialized");205            if(errorBuffer != null) {206                SimpleLogger.error("SUT output:\n" + errorBuffer.toString());207            }208            //note: actual process might still be running due to Java Agent we started209            stopSut();210            return null;211        }212        postStart();213        return getBaseURL();214    }215    @Override216    public boolean isSutRunning() {217        return process != null && process.isAlive();218    }219    @Override220    public void stopSut() {221        SimpleLogger.info("Going to stop the SUT");222        preStop();223        if (serverController != null) {224            serverController.closeServer();225        }226        killProcess();227        initialized = false;228        postStop();229    }230    @Override231    public final boolean isInstrumentationActivated() {232        return instrumentation && serverController != null && serverController.isConnectionOn();233    }234    @Override235    public final void newSearch() {236        if (isInstrumentationActivated()) {237            serverController.resetForNewSearch();238        }239    }240    @Override241    public final void newTestSpecificHandler() {242        if (isInstrumentationActivated()) {243            serverController.resetForNewTest();244        }245    }246    @Override247    public final List<TargetInfo> getTargetInfos(Collection<Integer> ids) {248        checkInstrumentation();249        return serverController.getTargetsInfo(ids);250    }251    @Override252    public final List<AdditionalInfo> getAdditionalInfoList(){253        checkInstrumentation();254        return serverController.getAdditionalInfoList();255    }256    @Override257    public final void newActionSpecificHandler(ActionDto dto) {258        if (isInstrumentationActivated()) {259            serverController.setAction(new Action(dto.index, dto.inputVariables));260        }261    }262    @Override263    public final UnitsInfoDto getUnitsInfoDto(){264        if(!isInstrumentationActivated()){265            return null;266        }267        return getUnitsInfoDto(serverController.getUnitsInfoRecorder());268    }269    //-----------------------------------------270    private void checkInstrumentation() {271        if (!isInstrumentationActivated()) {272            throw new IllegalStateException("Instrumentation is not active");273        }274    }275    private void validateJarPath() {276        String path = getPathToExecutableJar();277        if (!path.endsWith(".jar")) {278            throw new IllegalStateException("Invalid jar path does not end with '.jar': " + path);279        }280        if (!Files.exists(Paths.get(path))) {281            throw new IllegalArgumentException("File does not exist: " + path);282        }283    }284    private void killProcess() {285        try {286            Runtime.getRuntime().removeShutdownHook(processKillHook);287        } catch (Exception e) {288            /* do nothing. this can happen if shutdown is in progress */289        }290        if (process != null) {291            try {292                //be sure streamers are closed, otherwise process might hang on Windows293                process.getOutputStream().close();294                process.getInputStream().close();295                process.getErrorStream().close();296            } catch (Exception t) {297                SimpleLogger.error("Failed to close process stream: " + t.toString());298            }...

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