Example usage for java.lang Process getInputStream

Introduction

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

Prototype

public abstract InputStream getInputStream();

Source Link

Document

Returns the input stream connected to the normal output of the process.

Usage

From source file:dk.netarkivet.common.utils.ProcessUtils.java

/** Runs an external process that takes no input, discarding its output.
 *
 * @param environment An environment to run the process in (may be null)
 * @param programAndArgs The program and its arguments.
 * @return The return code of the process.
 *//*  w  w w .ja v  a2s  .com*/
public static int runProcess(String[] environment, String... programAndArgs) {
    try {
        log.debug("Running external program: " + StringUtils.conjoin(" ", programAndArgs) + " with environment "
                + StringUtils.conjoin(" ", environment));

        Process p = Runtime.getRuntime().exec(programAndArgs, environment);
        discardProcessOutput(p.getInputStream());
        discardProcessOutput(p.getErrorStream());
        while (true) {
            try {
                return p.waitFor();
            } catch (InterruptedException e) {
                // Ignoring interruptions, we just want to try waiting
                // again.
            }
        }
    } catch (IOException e) {
        throw new IOFailure("Failure while running " + Arrays.toString(programAndArgs), e);
    }
}

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From source file:ezbake.amino.cli.Main.java

/**
 * A funny hack in order to get the proper terminal width so that we can word wrap properly
 * @return The number of characters wide the terminal is currently.
 *//*from   w  w w .j a v a  2s . c o  m*/
public static int getTerminalWidth() {
    try {
        Process p = Runtime.getRuntime().exec(new String[] { "sh", "-c", "tput cols 2> /dev/tty" });
        p.waitFor();
        return Integer.parseInt(new BufferedReader(new InputStreamReader(p.getInputStream())).readLine());
    } catch (Exception e) {
        logger.error("Error getting terminal width", e);
        return 80;
    }

}

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From source file:Main.java

public static int getSuVersionCode() {
    Process process = null;
    String inLine = null;//from  www  . ja v a2s.c  om

    try {
        process = Runtime.getRuntime().exec("sh");
        DataOutputStream os = new DataOutputStream(process.getOutputStream());
        BufferedReader is = new BufferedReader(
                new InputStreamReader(new DataInputStream(process.getInputStream())), 64);
        os.writeBytes("su -v\n");

        // We have to hold up the thread to make sure that we're ready to read
        // the stream, using increments of 5ms makes it return as quick as
        // possible, and limiting to 1000ms makes sure that it doesn't hang for
        // too long if there's a problem.
        for (int i = 0; i < 400; i++) {
            if (is.ready()) {
                break;
            }
            try {
                Thread.sleep(5);
            } catch (InterruptedException e) {
                Log.w(TAG, "Sleep timer got interrupted...");
            }
        }
        if (is.ready()) {
            inLine = is.readLine();
            if (inLine != null && Integer.parseInt(inLine.substring(0, 1)) > 2) {
                inLine = null;
                os.writeBytes("su -V\n");
                inLine = is.readLine();
                if (inLine != null) {
                    return Integer.parseInt(inLine);
                }
            } else {
                return 0;
            }
        } else {
            os.writeBytes("exit\n");
        }
    } catch (IOException e) {
        Log.e(TAG, "Problems reading current version.", e);
        return 0;
    } finally {
        if (process != null) {
            process.destroy();
        }
    }
    return 0;
}

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From source file:net.pms.util.ProcessUtil.java

public static boolean kill(Integer pid, int signal) {
    boolean killed = false;
    LOGGER.warn("Sending kill -" + signal + " to the Unix process: " + pid);
    try {//from   w w  w .j av  a  2s. co  m
        ProcessBuilder processBuilder = new ProcessBuilder("kill", "-" + signal, Integer.toString(pid));
        processBuilder.redirectErrorStream(true);
        Process process = processBuilder.start();
        // consume the error and output process streams
        StreamGobbler.consume(process.getInputStream(), true);
        int exit = waitFor(process);
        if (exit == 0) {
            killed = true;
            LOGGER.debug("Successfully sent kill -" + signal + " to the Unix process: " + pid);
        }
    } catch (IOException e) {
        LOGGER.error("Error calling: kill -" + signal + " " + pid, e);
    }

    return killed;
}

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From source file:de.knowwe.visualization.util.Utils.java

private static boolean isFileClosedUnix(File file) {
    try {//  w w w  .j a v a 2 s  .c o  m
        Process plsof = new ProcessBuilder(new String[] { "lsof", "|", "grep", file.getAbsolutePath() })
                .start();
        BufferedReader reader = new BufferedReader(new InputStreamReader(plsof.getInputStream()));
        String line;
        while ((line = reader.readLine()) != null) {
            if (line.contains(file.getAbsolutePath())) {
                reader.close();
                plsof.destroy();
                return false;
            }
        }
        reader.close();
        plsof.destroy();
    } catch (Exception ignore) {
    }
    return true;
}

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From source file:energy.usef.environment.tool.security.VaultService.java

/**
 * Executes a class's static main method with the current java executable and classpath in a separate process.
 * /*from   w  ww  .ja va2s.co  m*/
 * @param klass the class to call the static main method for
 * @param params the parameters to provide
 * @return the exit code of the process
 * @throws IOException
 * @throws InterruptedException
 */
public static int exec(@SuppressWarnings("rawtypes") Class klass, List<String> params)
        throws IOException, InterruptedException {
    String javaHome = System.getProperty("java.home");
    String javaBin = javaHome + File.separator + "bin" + File.separator + "java";
    String classpath = System.getProperty("java.class.path");
    String className = klass.getCanonicalName();

    // construct the command line
    List<String> command = new ArrayList<String>();
    command.add(javaBin);
    command.add("-cp");
    command.add(classpath);
    command.add(className);
    command.addAll(params);
    LOGGER.debug("executing class '{}' with params '{}' in classpath '{}' with java binary '{}'", className,
            params.toString(), classpath, javaBin);

    // build and start the Vault's process
    ProcessBuilder builder = new ProcessBuilder(command);
    Process process = builder.start();
    process.waitFor();

    // get the input and error streams of the process and log them
    InputStream in = process.getInputStream();
    InputStream en = process.getErrorStream();
    InputStreamReader is = new InputStreamReader(in);
    InputStreamReader es = new InputStreamReader(en);
    BufferedReader br = new BufferedReader(is);
    BufferedReader be = new BufferedReader(es);

    String read = br.readLine();
    while (read != null) {
        LOGGER.debug(read);
        read = br.readLine();
    }
    read = be.readLine();
    while (read != null) {
        LOGGER.debug(read);
        read = be.readLine();
    }

    br.close();
    is.close();
    in.close();

    return process.exitValue();
}

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From source file:deincraftlauncher.start.StartMinecraft.java

public static void startMC(Modpack pack) {

    try {/* w  ww.j  a v a 2 s. com*/

        System.out.println("trying to start minecraft");

        GameInfos infos = new GameInfos(pack.getName(), new File(pack.getPath()),
                new GameVersion(pack.getMCVersion(), pack.getGameType()), new GameTweak[] { GameTweak.FORGE });
        System.out.println("GameInfos done");

        System.out.println("Zugangsdaten: " + settings.getUsername() + settings.getPassword());

        Authenticator authenticator = new Authenticator(Authenticator.MOJANG_AUTH_URL,
                AuthPoints.NORMAL_AUTH_POINTS);
        AuthResponse rep = authenticator.authenticate(AuthAgent.MINECRAFT, settings.getUsername(),
                settings.getPassword(), "");
        AuthInfos authInfos = new AuthInfos(rep.getSelectedProfile().getName(), rep.getAccessToken(),
                rep.getSelectedProfile().getId());
        System.out.println("authinfos done");

        //AuthInfos authInfos = new AuthInfos(settings.getUsername(), MCAuthentication.getToken(settings.getUsername(), settings.getPassword()), MCAuthentication.getUUID(settings.getUsername(), settings.getPassword()));

        ExternalLaunchProfile profile = MinecraftLauncher.createExternalProfile(infos, getFolder(pack),
                authInfos);
        List<String> vmArgs = profile.getVmArgs();
        vmArgs.add(String.valueOf("-Xms" + settings.getRAM() + "m"));
        //System.out.println("vm args: " + vmArgs);
        profile.setVmArgs(vmArgs);
        ExternalLauncher launcher = new MCLauncher(profile);
        System.out.println("profile and launcher done " + launcher.getProfile());

        Process launch = launcher.launch();

        BufferedReader stdout = new BufferedReader(new InputStreamReader(launch.getInputStream()));
        String line;

        while ((line = stdout.readLine()) != null) {
            System.out.println(line);
        }
        Timer timer = new Timer();
        timer.schedule(new TimerTask() {
            @Override
            public void run() {
                Platform.runLater(() -> {
                    System.out.println("minecraft started, changing start state");
                    pack.setStartState(PackViewHandler.StartState.Loading);
                    pack.setStartText("gestartet");
                });
            }
        }, 8000);

        checkAlive(launch, pack);

    } catch (LaunchException | AuthenticationException | IOException ex) {
        Logger.getLogger(StartMinecraft.class.getName()).log(Level.SEVERE, null, ex);
    }

}

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From source file:com.searchbox.framework.web.SystemController.java

/**
 * Utility function to execute a function
 *//*from  w  w w . j  a v a 2  s. c  o m*/
private static String execute(String cmd) {
    DataInputStream in = null;
    Process process = null;

    try {
        process = Runtime.getRuntime().exec(cmd);
        in = new DataInputStream(process.getInputStream());
        // use default charset from locale here, because the command invoked
        // also uses the default locale:
        return IOUtils.toString(new InputStreamReader(in, Charset.defaultCharset()));
    } catch (Exception ex) {
        // ignore - log.warn("Error executing command", ex);
        return "(error executing: " + cmd + ")";
    } finally {
        if (process != null) {
            IOUtils.closeQuietly(process.getOutputStream());
            IOUtils.closeQuietly(process.getInputStream());
            IOUtils.closeQuietly(process.getErrorStream());
        }
    }
}

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From source file:com.unresyst.DealRecommender.java

private static String runCommand(String... commands) throws IOException, InterruptedException {
    // generate a script file containg the command to run
    final File scriptFile = new File("/tmp/runcommand.sh");
    PrintWriter w = new PrintWriter(scriptFile);
    w.println("#!/bin/sh");
    for (String command : commands) {
        w.println(command);//from www  .j  a  va 2  s  . c  o m
    }
    w.close();

    // make the script executable
    //System.out.println("absolute path: " + scriptFile.getAbsolutePath());
    Process p = Runtime.getRuntime().exec("chmod +x " + scriptFile.getAbsolutePath());
    p.waitFor();

    // execute the script
    p = Runtime.getRuntime().exec(scriptFile.getAbsolutePath());
    p.waitFor();
    BufferedReader stdin = new BufferedReader(new InputStreamReader(p.getInputStream()));
    BufferedReader stderr = new BufferedReader(new InputStreamReader(p.getErrorStream()));
    String toReturn = "";
    String line = "";
    while ((line = stdin.readLine()) != null) {
        toReturn += line + "\n";
    }
    while ((line = stderr.readLine()) != null) {
        toReturn += "err: " + line + "\n";
    }

    scriptFile.delete();
    return toReturn;
}

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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;
    InputStream stdout = null;//from   w ww. j a v a  2 s .  c om
    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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