Example usage for java.lang Process destroy

Introduction

In this page you can find the example usage for java.lang Process destroy.

Prototype

public abstract void destroy();

Source Link

Document

Kills the process.

Usage

From source file:org.apache.hadoop.NodeHealthCheckerService.java

/**
 * Method used to terminate the node health monitoring service.
 * /*from  w w  w.j a  v a2s.  c  o  m*/
 */
@Override
public void stop() {
    if (!shouldRun(conf)) {
        return;
    }
    nodeHealthScriptScheduler.cancel();
    if (shexec != null) {
        Process p = shexec.getProcess();
        if (p != null) {
            p.destroy();
        }
    }
}

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From source file:edu.umd.cs.marmoset.utilities.JProcess.java

public static void destroyProcessGroup(Process process, Logger log) {
    int pid = 0;/*from  www .j a  v a2  s. c  om*/
    try {
        pid = getPid(process);

        log.debug("PID to be killed = " + pid);

        String command = "kill -9 -" + pid;

        String[] cmd = command.split("\\s+");

        Process kill = Runtime.getRuntime().exec(cmd);
        log.warn("Trying to kill the process group leader: " + command);
        kill.waitFor();
    } catch (IOException e) {
        // if we can't execute the kill command, then try to destroy the process
        log.warn("Unable to execute kill -9 -" + pid + "; now calling process.destroy()");
    } catch (InterruptedException e) {
        log.error("kill -9 -" + pid + " process was interrupted!  Now calling process.destroy()");
    } catch (IllegalAccessException e) {
        log.error("Illegal field access to PID field; calling process.destroy()", e);
    } catch (NoSuchFieldException e) {
        log.error("Cannot find PID field; calling process.destroy()", e);
    } finally {
        // call process.destroy() whether or not "kill -9 -<pid>" worked
        // in order to maintain proper internal state
        process.destroy();
    }
}

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From source file:org.apache.tika.batch.fs.FSBatchTestBase.java

protected void destroyProcess(Process p) {
    if (p == null)
        return;//from w w  w.j  a  v a2s .  c om

    try {
        p.exitValue();
    } catch (IllegalThreadStateException e) {
        p.destroy();
    }
}

---

From source file:net.pickapack.io.cmd.CommandLineHelper.java

/**
 *
 * @param cmd//from www .  j  a v a  2  s .c om
 * @param waitFor
 * @return
 */
public static int invokeNativeCommand(String[] cmd, boolean waitFor) {
    try {
        Runtime r = Runtime.getRuntime();
        final Process ps = r.exec(cmd);
        //            ProcessBuilder pb = new ProcessBuilder(cmd);
        //            Process ps = pb.start();

        new Thread() {
            {
                setDaemon(true);
            }

            @Override
            public void run() {
                try {
                    IOUtils.copy(ps.getInputStream(), System.out);
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }.start();

        new Thread() {
            {
                setDaemon(true);
            }

            @Override
            public void run() {
                try {
                    IOUtils.copy(ps.getErrorStream(), System.out);
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }.start();

        if (waitFor) {
            int exitValue = ps.waitFor();
            if (exitValue != 0) {
                System.out.println("WARN: Process exits with non-zero code: " + exitValue);
            }

            ps.destroy();

            return exitValue;
        }

        return 0;
    } catch (Exception e) {
        e.printStackTrace();
        return -1;
    }
}

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From source file:msec.org.Tools.java

static public int runCommand(String[] cmd, StringBuffer sb, boolean waitflag) {

    Process pid = null;
    ProcessBuilder build = new ProcessBuilder(cmd);
    build.redirectErrorStream(true);/*  w  w  w .j a v a2  s. c  om*/
    try {
        pid = build.start();
    } catch (Exception e) {
        e.printStackTrace();
        return -1;
    }
    if (sb != null) {
        //BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(pid.getInputStream()), 1024);
        InputStream in = pid.getInputStream();
        byte[] buf = new byte[10240];
        try {
            while (true) {
                int len = in.read(buf);
                if (len <= 0) {
                    break;
                }
                sb.append(new String(buf, 0, len));
            }
        } catch (Exception e) {
        }

    }
    if (waitflag) {
        try {
            pid.waitFor();
            int v = pid.exitValue();
            pid.destroy();
            return v;
        } catch (Exception e) {
        }
    }
    return 0;
}

---

From source file:it.polimi.modaclouds.qos.linebenchmark.solver.SolutionEvaluator.java

private void runWithLQNS() {
    StopWatch timer = new StopWatch();
    String solverProgram = "lqns";

    String command = solverProgram + " " + filePath + " -f"; //using the fast option
    logger.info("Launch: " + command);
    //String command = solverProgram+" "+filePath; //without using the fast option
    try {//from ww w .  j a  v a  2  s  .  co  m
        ProcessBuilder pb = new ProcessBuilder(splitToCommandArray(command));

        //start counting
        timer.start();
        Process proc = pb.start();
        readStream(proc.getInputStream(), false);
        readStream(proc.getErrorStream(), true);
        int exitVal = proc.waitFor();
        //stop counting
        timer.stop();
        proc.destroy();

        //evaluation error messages
        if (exitVal == LQNS_RETURN_SUCCESS)
            ;
        else if (exitVal == LQNS_RETURN_MODEL_FAILED_TO_CONVERGE) {
            System.err.println(Main.LQNS_SOLVER + " exited with " + exitVal
                    + ": The model failed to converge. Results are most likely inaccurate. ");
            System.err.println("Analysis Result has been written to: " + resultfilePath);
        } else {
            String message = "";
            if (exitVal == LQNS_RETURN_INVALID_INPUT) {
                message = solverProgram + " exited with " + exitVal + ": Invalid Input.";
            } else if (exitVal == LQNS_RETURN_FATAL_ERROR) {
                message = solverProgram + " exited with " + exitVal + ": Fatal error";
            } else {
                message = solverProgram + " returned an unrecognised exit value " + exitVal
                        + ". Key: 0 on success, 1 if the model failed to meet the convergence criteria, 2 if the input was invalid, 4 if a command line argument was incorrect, 8 for file read/write problems and -1 for fatal errors. If multiple input files are being processed, the exit code is the bit-wise OR of the above conditions.";
            }
            System.err.println(message);
        }
    } catch (IOException | InterruptedException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    //tell listeners that the evaluation has been performed
    EvaluationCompletedEvent evaluationCompleted = new EvaluationCompletedEvent(this, 0, null);
    evaluationCompleted.setEvaluationTime(timer.getTime());
    evaluationCompleted.setSolverName(solver);
    evaluationCompleted.setModelPath(filePath.getFileName());
    for (ActionListener l : listeners)
        l.actionPerformed(evaluationCompleted);
}

---

From source file:org.apache.sling.maven.slingstart.run.LauncherCallable.java

public static void stop(final Log LOG, final ProcessDescription cfg) throws Exception {
    boolean isNew = false;

    if (cfg.getProcess() != null || isNew) {
        LOG.info("Stopping Launchpad " + cfg.getId());
        boolean destroy = true;
        final int twoMinutes = 2 * 60 * 1000;
        final File controlPortFile = getControlPortFile(cfg.getDirectory());
        LOG.debug("Control port file " + controlPortFile + " exists: " + controlPortFile.exists());
        if (controlPortFile.exists()) {
            // reading control port
            int controlPort = -1;
            String secretKey = null;
            LineNumberReader lnr = null;
            String serverName = null;
            try {
                lnr = new LineNumberReader(new FileReader(controlPortFile));
                final String portLine = lnr.readLine();
                final int pos = portLine.indexOf(':');
                controlPort = Integer.parseInt(portLine.substring(pos + 1));
                if (pos > 0) {
                    serverName = portLine.substring(0, pos);
                }//from  w w w . j  a  va 2s.  c o  m
                secretKey = lnr.readLine();
            } catch (final NumberFormatException ignore) {
                // we ignore this
                LOG.debug("Error reading control port file " + controlPortFile, ignore);
            } catch (final IOException ignore) {
                // we ignore this
                LOG.debug("Error reading control port file " + controlPortFile, ignore);
            } finally {
                IOUtils.closeQuietly(lnr);
            }

            if (controlPort != -1) {
                final List<String> hosts = new ArrayList<String>();
                if (serverName != null) {
                    hosts.add(serverName);
                }
                hosts.add("localhost");
                hosts.add("127.0.0.1");
                LOG.debug("Found control port " + controlPort);
                int index = 0;
                while (destroy && index < hosts.size()) {
                    final String hostName = hosts.get(index);

                    Socket clientSocket = null;
                    DataOutputStream out = null;
                    BufferedReader in = null;
                    try {
                        LOG.debug("Trying to connect to " + hostName + ":" + controlPort);
                        clientSocket = new Socket();
                        // set a socket timeout
                        clientSocket.connect(new InetSocketAddress(hostName, controlPort), twoMinutes);
                        // without that, read() call on the InputStream associated with this Socket is infinite
                        clientSocket.setSoTimeout(twoMinutes);

                        LOG.debug(hostName + ":" + controlPort
                                + " connection estabilished, sending the 'stop' command...");

                        out = new DataOutputStream(clientSocket.getOutputStream());
                        in = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
                        if (secretKey != null) {
                            out.writeBytes(secretKey);
                            out.write(' ');
                        }
                        out.writeBytes("stop\n");
                        in.readLine();
                        destroy = false;
                        LOG.debug("'stop' command sent to " + hostName + ":" + controlPort);
                    } catch (final Throwable ignore) {
                        // catch Throwable because InetSocketAddress and Socket#connect throws unchecked exceptions
                        // we ignore this for now
                        LOG.debug("Error sending 'stop' command to " + hostName + ":" + controlPort
                                + " due to: " + ignore.getMessage());
                    } finally {
                        IOUtils.closeQuietly(in);
                        IOUtils.closeQuietly(out);
                        IOUtils.closeQuietly(clientSocket);
                    }
                    index++;
                }
            }
        }
        if (cfg.getProcess() != null) {
            final Process process = cfg.getProcess();

            if (!destroy) {
                // as shutdown might block forever, we use a timeout
                final long now = System.currentTimeMillis();
                final long end = now + twoMinutes;

                LOG.debug("Waiting for process to stop...");

                while (isAlive(process) && (System.currentTimeMillis() < end)) {
                    try {
                        Thread.sleep(2500);
                    } catch (InterruptedException e) {
                        // ignore
                    }
                }
                if (isAlive(process)) {
                    LOG.debug("Process timeout out after 2 minutes");
                    destroy = true;
                } else {
                    LOG.debug("Process stopped");
                }
            }

            if (destroy) {
                LOG.debug("Destroying process...");
                process.destroy();
                LOG.debug("Process destroyed");
            }

            cfg.setProcess(null);
        }
    } else {
        LOG.warn("Launchpad already stopped");
    }
}

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From source file:com.diversityarrays.kdxplore.trialdesign.RscriptFinderPanel.java

private void doCheckScriptPath() {

    String scriptPath = scriptPathField.getText().trim();

    BackgroundTask<Either<String, String>, Void> task = new BackgroundTask<Either<String, String>, Void>(
            "Checking...", true) {
        @Override//www  . j  av a  2s .  co m
        public Either<String, String> generateResult(Closure<Void> arg0) throws Exception {

            ProcessBuilder findRScript = new ProcessBuilder(scriptPath, "--version");

            Process p = findRScript.start();

            while (!p.waitFor(1000, TimeUnit.MILLISECONDS)) {
                if (backgroundRunner.isCancelRequested()) {
                    p.destroy();
                    throw new CancellationException();
                }
            }

            if (0 == p.exitValue()) {
                String output = Algorithms.readContent(null, p.getInputStream());
                versionNumber = Algorithms.readContent(null, p.getErrorStream());
                return Either.right(output);
            }

            errorOutput = Algorithms.readContent("Error Output:", p.getErrorStream());
            if (errorOutput.isEmpty()) {
                errorOutput = "No error output available";
                return Either.left(errorOutput);
            }
            return Either.left(errorOutput);
        }

        @Override
        public void onException(Throwable t) {
            onScriptPathChecked.accept(Either.left(t));
        }

        @Override
        public void onCancel(CancellationException ce) {
            onScriptPathChecked.accept(Either.left(ce));
        }

        @Override
        public void onTaskComplete(Either<String, String> either) {
            if (either.isLeft()) {
                MsgBox.error(RscriptFinderPanel.this, either.left(), "Error Output");
            } else {
                TrialDesignPreferences.getInstance().setRscriptPath(scriptPath);
                onScriptPathChecked.accept(Either.right(scriptPath));
                checkOutput = either.right();
            }
        }
    };

    backgroundRunner.runBackgroundTask(task);
}

---

From source file:com.palantir.tslint.Linter.java

public void lint(IResource resource, String configurationPath) throws IOException {
    String resourceName = resource.getName();
    if (resource instanceof IFile && resourceName.endsWith(".ts") && !resourceName.endsWith(".d.ts")) {
        IFile file = (IFile) resource;//  w ww .  j a  v  a  2  s  .c o m
        String linterPath = TSLintPlugin.getLinterPath();
        String resourcePath = resource.getRawLocation().toOSString();

        // remove any pre-existing markers for the given file
        deleteMarkers(file);

        // start tslint and get its output
        ProcessBuilder processBuilder = new ProcessBuilder(this.nodePath, linterPath, "-f", resourcePath, "-t",
                "json", "-c", configurationPath);

        Process process = processBuilder.start();
        BufferedReader reader = new BufferedReader(
                new InputStreamReader(process.getInputStream(), Charsets.UTF_8));
        String jsonString = reader.readLine();

        // now that we have the complete output, terminate the process
        process.destroy();

        if (jsonString != null) {
            ObjectMapper objectMapper = new ObjectMapper();
            RuleFailure[] ruleFailures = objectMapper.readValue(jsonString, RuleFailure[].class);
            for (RuleFailure ruleFailure : ruleFailures) {
                addMarker(ruleFailure);
            }
        }
    }
}

---

From source file:org.rhq.plugins.jmx.test.JMXPluginTest.java

@AfterClass
public void stopTestServers() {
    for (Process process : this.testServerJvms) {
        process.destroy();
    }/* www.  ja v a 2  s .com*/
}

---

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