Example usage for java.lang ProcessBuilder start

Introduction

In this page you can find the example usage for java.lang ProcessBuilder start.

Prototype

public Process start() throws IOException 

Source Link

Document

Starts a new process using the attributes of this process builder.

Usage

From source file:io.github.retz.executor.FileManager.java

private static void decompress(File file, String dir) throws IOException {
    LOG.info("{} needs decompression: starting", file);
    String[] cmd = { "tar", "xf", file.getAbsolutePath(), "-C", dir };
    ProcessBuilder pb = new ProcessBuilder().command(cmd).inheritIO();
    try {/*from   w w w . j  av a2 s.  c  om*/
        Process p = pb.start();
        int r = p.waitFor();
        if (r == 0) {
            LOG.info("file {} successfully decompressed", file);
        } else {
            LOG.error("Failed decompression of file {}: {}", file, r);
        }
    } catch (InterruptedException e) {
        LOG.error(e.getMessage());
    }
}

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From source file:jp.co.tis.gsp.tools.dba.util.ProcessUtil.java

public static void exec(Map<String, String> environment, String... args)
        throws IOException, InterruptedException {

    Process process = null;/*from w ww  .  j a  v a 2  s  . co  m*/
    InputStream stdout = null;
    BufferedReader br = null;

    try {
        ProcessBuilder pb = new ProcessBuilder(args);
        pb.redirectErrorStream(true);
        if (environment != null) {
            pb.environment().putAll(environment);
        }

        process = pb.start();
        stdout = process.getInputStream();
        br = new BufferedReader(new InputStreamReader(stdout));
        String line;
        while ((line = br.readLine()) != null) {
            System.out.println(line);
        }
    } catch (IOException e) {
        throw e;
    } finally {
        IOUtils.closeQuietly(br);
        IOUtils.closeQuietly(stdout);

        if (process != null) {
            process.destroy();
        }
    }
}

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From source file:com.frostwire.desktop.DesktopVPNMonitor.java

private static String readProcessOutput(String command, String arguments) {
    String result = "";
    ProcessBuilder pb = new ProcessBuilder(command, arguments);
    pb.redirectErrorStream(true);/*ww  w. ja v  a2  s.c o m*/
    try {
        Process process = pb.start();
        InputStream stdout = process.getInputStream();
        final BufferedReader brstdout = new BufferedReader(new InputStreamReader(stdout));
        String line;

        try {
            StringBuilder sb = new StringBuilder();
            while ((line = brstdout.readLine()) != null) {
                sb.append(line + "\r\n");
            }

            result = sb.toString();
        } catch (Throwable e) {
            LOG.error("Error reading routing table command output", e);
        } finally {
            IOUtils.closeQuietly(brstdout);
            IOUtils.closeQuietly(stdout);
        }

    } catch (Throwable e) {
        LOG.error("Error executing routing table command", e);
    }
    return result;
}

---

From source file:io.github.retz.executor.FileManager.java

private static void fetchHDFSFile(String file, String dest) throws IOException {
    LOG.debug("Downloading {} to {} as HDFS file", file, dest);
    // TODO: make 'hadoop' command arbitrarily specifiable, but given that mesos-agent (slave) can fetch hdfs:// files, it should be also available, too
    String[] hadoopCmd = { "hadoop", "fs", "-copyToLocal", file, dest };
    LOG.debug("Command: {}", String.join(" ", hadoopCmd));
    ProcessBuilder pb = new ProcessBuilder();
    pb.command(hadoopCmd).inheritIO();/* w w w  . j ava2s . com*/

    Process p = pb.start();
    while (true) {
        try {
            int result = p.waitFor();
            if (result != 0) {
                LOG.error("Downloading {} failed: {}", file, result);
            } else {
                LOG.info("Download finished: {}", file);
            }
            return;
        } catch (InterruptedException e) {
            LOG.error("Download process interrupted: {}", e.getMessage()); // TODO: debug?
        }
    }
}

---

From source file:com.twitter.bazel.checkstyle.PythonCheckstyle.java

private static void runLinter(List<String> command) throws IOException {
    LOG.finer("checkstyle command: " + command);

    ProcessBuilder processBuilder = new ProcessBuilder(command);
    processBuilder.redirectOutput(ProcessBuilder.Redirect.INHERIT);
    processBuilder.redirectError(ProcessBuilder.Redirect.INHERIT);
    Process pylint = processBuilder.start();

    try {//from  w  ww.  jav a2s.  com
        pylint.waitFor();
    } catch (InterruptedException e) {
        throw new RuntimeException("python checkstyle command was interrupted: " + command, e);
    }

    if (pylint.exitValue() == 30) {
        LOG.warning("python checkstyle detected bad styles.");
        // SUPPRESS CHECKSTYLE RegexpSinglelineJava
        System.exit(1);
    }

    if (pylint.exitValue() != 0) {
        throw new RuntimeException("python checkstyle command failed with status " + pylint.exitValue());
    }
}

---

From source file:Main.java

public static long getNetSpeed() {
    ProcessBuilder cmd;
    long readBytes = 0;
    BufferedReader rd = null;/*ww  w . j  a v  a2 s. c  o  m*/
    try {
        String[] args = { "/system/bin/cat", "/proc/net/dev" };
        cmd = new ProcessBuilder(args);
        Process process = cmd.start();
        rd = new BufferedReader(new InputStreamReader(process.getInputStream()));
        String line;
        while ((line = rd.readLine()) != null) {
            if (line.contains("lan0") || line.contains("eth0")) {
                String[] delim = line.split(":");
                if (delim.length >= 2) {
                    readBytes = parserNumber(delim[1].trim());
                    break;
                }
            }
        }
        rd.close();
    } catch (Exception ex) {
        ex.printStackTrace();
    } finally {
        if (rd != null) {
            try {
                rd.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
    return readBytes;
}

---

From source file:com.twitter.bazel.checkstyle.CppCheckstyle.java

private static void runLinter(List<String> command) throws IOException {
    LOG.fine("checkstyle command: " + command);

    ProcessBuilder processBuilder = new ProcessBuilder(command);
    processBuilder.redirectOutput(ProcessBuilder.Redirect.INHERIT);
    processBuilder.redirectError(ProcessBuilder.Redirect.INHERIT);
    Process cpplint = processBuilder.start();

    try {/*from   www . j  a v a 2s  .c  o  m*/
        cpplint.waitFor();
    } catch (InterruptedException e) {
        throw new RuntimeException("cpp checkstyle command was interrupted: " + command, e);
    }

    if (cpplint.exitValue() == 1) {
        LOG.warning("cpp checkstyle detected bad styles.");
        // SUPPRESS CHECKSTYLE RegexpSinglelineJava
        System.exit(1);
    }

    if (cpplint.exitValue() != 0) {
        throw new RuntimeException("cpp checkstyle command failed with status " + cpplint.exitValue());
    }
}

---

From source file:com.act.utils.ProcessRunner.java

/**
 * Run's a child process using the specified command and arguments, timing out after a specified number of seconds
 * if the process does not terminate on its own in that time.
 * @param command The process to run.//from  ww  w.  ja v  a2 s  . c o m
 * @param args The arguments to pass to that process.
 * @param timeoutInSeconds A timeout to impose on the child process; an InterruptedException is likely to occur
 *                         when the child process times out.
 * @return The exit code of the child process.
 * @throws InterruptedException
 * @throws IOException
 */
public static int runProcess(String command, List<String> args, Long timeoutInSeconds)
        throws InterruptedException, IOException {
    /* The ProcessBuilder doesn't differentiate the command from its arguments, but we do in our API to ensure the user
     * doesn't just pass us a single string command, which invokes the shell and can cause all sorts of bugs and
     * security issues. */
    List<String> commandAndArgs = new ArrayList<String>(args.size() + 1) {
        {
            add(command);
            addAll(args);
        }
    };
    ProcessBuilder processBuilder = new ProcessBuilder(commandAndArgs);
    LOGGER.info("Running child process: %s", StringUtils.join(commandAndArgs, " "));

    Process p = processBuilder.start();
    // Log whatever the child writes.
    new StreamLogger(p.getInputStream(), l -> LOGGER.info("[child STDOUT]: %s", l)).run();
    new StreamLogger(p.getErrorStream(), l -> LOGGER.warn("[child STDERR]: %s", l)).run();
    // Wait for the child process to exit, timing out if it takes to long to finish.
    if (timeoutInSeconds != null) {
        p.waitFor(timeoutInSeconds, TimeUnit.SECONDS);
    } else {
        p.waitFor();
    }

    // 0 is the default success exit code in *nix land.
    if (p.exitValue() != 0) {
        LOGGER.error("Child process exited with non-zero status code: %d", p.exitValue());
    }

    return p.exitValue();
}

---

From source file:Main.java

private static void killprocessNormal(String proc, int killMethod) {
    try {/* www  .  j av  a  2  s . com*/
        ArrayList<String> pid_list = new ArrayList<String>();

        ProcessBuilder execBuilder = null;

        execBuilder = new ProcessBuilder("sh", "-c", "ps |grep " + proc);

        execBuilder.redirectErrorStream(true);

        Process exec = null;
        exec = execBuilder.start();
        InputStream is = exec.getInputStream();
        BufferedReader reader = new BufferedReader(new InputStreamReader(is));

        String line = "";
        while ((line = reader.readLine()) != null) {
            String regEx = "\\s[0-9][0-9]*\\s";
            Pattern pat = Pattern.compile(regEx);
            Matcher mat = pat.matcher(line);
            if (mat.find()) {
                String temp = mat.group();
                temp = temp.replaceAll("\\s", "");
                pid_list.add(temp);
            }
        }

        for (int i = 0; i < pid_list.size(); i++) {
            execBuilder = new ProcessBuilder("su", "-c", "kill", "-" + killMethod, pid_list.get(i));
            exec = null;
            exec = execBuilder.start();

            execBuilder = new ProcessBuilder("su", "-c", "kill" + " -" + killMethod + " " + pid_list.get(i));
            exec = null;
            exec = execBuilder.start();
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}

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From source file:com.frederikam.fredboat.bootloader.Bootloader.java

private static Process boot() throws IOException {
    //Check that we are not booting too quick (we could be stuck in a login loop)
    if (System.currentTimeMillis() - lastBoot > 3000 * 1000) {
        recentBoots = 0;/*from  w ww .  jav a 2 s .  c  o  m*/
    }

    recentBoots++;
    lastBoot = System.currentTimeMillis();

    if (recentBoots >= 4) {
        System.out.println("[BOOTLOADER] Failed to restart 3 times, probably due to login errors. Exiting...");
        System.exit(-1);
    }

    //ProcessBuilder pb = new ProcessBuilder(System.getProperty("java.home") + "/bin/java -jar "+new File("FredBoat-1.0.jar").getAbsolutePath())
    ProcessBuilder pb = new ProcessBuilder().inheritIO();
    ArrayList<String> list = new ArrayList<>();
    command.forEach((Object str) -> {
        list.add((String) str);
    });

    pb.command(list);

    Process process = pb.start();
    return process;
}

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