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:azkaban.utils.FileIOUtils.java

/**
 * Run a unix command that will symlink files, and recurse into directories.
 *//*  www  .ja va 2 s  .  co  m*/
public static void createDeepSymlink(File sourceDir, File destDir) throws IOException {
    if (!sourceDir.exists()) {
        throw new IOException("Source directory " + sourceDir.getPath() + " doesn't exist");
    } else if (!destDir.exists()) {
        throw new IOException("Destination directory " + destDir.getPath() + " doesn't exist");
    } else if (sourceDir.isFile() && destDir.isFile()) {
        throw new IOException("Source or Destination is not a directory.");
    }

    Set<String> paths = new HashSet<String>();
    createDirsFindFiles(sourceDir, sourceDir, destDir, paths);

    StringBuffer buffer = new StringBuffer();
    for (String path : paths) {
        File sourceLink = new File(sourceDir, path);
        path = "." + path;

        buffer.append("ln -s ").append(sourceLink.getAbsolutePath()).append("/*").append(" ").append(path)
                .append(";");
    }

    String command = buffer.toString();
    ProcessBuilder builder = new ProcessBuilder().command("sh", "-c", command);
    builder.directory(destDir);

    // XXX what about stopping threads ??
    Process process = builder.start();
    try {
        NullLogger errorLogger = new NullLogger(process.getErrorStream());
        NullLogger inputLogger = new NullLogger(process.getInputStream());
        errorLogger.start();
        inputLogger.start();

        try {
            if (process.waitFor() < 0) {
                // Assume that the error will be in standard out. Otherwise it'll be
                // in standard in.
                String errorMessage = errorLogger.getLastMessages();
                if (errorMessage.isEmpty()) {
                    errorMessage = inputLogger.getLastMessages();
                }

                throw new IOException(errorMessage);
            }

            // System.out.println(errorLogger.getLastMessages());
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    } finally {
        IOUtils.closeQuietly(process.getInputStream());
        IOUtils.closeQuietly(process.getOutputStream());
        IOUtils.closeQuietly(process.getErrorStream());
    }
}

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From source file:hobby.wei.c.phone.Network.java

public static String DNS(int n, boolean format) {
    String dns = null;/*from  w ww  . j a v  a  2 s .  co  m*/
    Process process = null;
    LineNumberReader reader = null;
    try {
        final String CMD = "getprop net.dns" + (n <= 1 ? 1 : 2);

        process = Runtime.getRuntime().exec(CMD);
        reader = new LineNumberReader(new InputStreamReader(process.getInputStream()));

        String line = null;
        while ((line = reader.readLine()) != null) {
            dns = line.trim();
        }
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        try {
            if (reader != null)
                reader.close();
            if (process != null)
                process.destroy(); //??
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    return format ? (dns != null ? dns.replace('.', '_') : dns) : dns;
}

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From source file:org.opencastproject.util.IoSupport.java

/**
 * Closes the processes input, output and error streams.
 *
 * @param process//from   w w w  .j a  v  a  2 s. c  o  m
 *         the process
 * @return <code>true</code> if the streams were closed
 */
public static boolean closeQuietly(final Process process) {
    if (process != null) {
        try {
            if (process.getErrorStream() != null)
                process.getErrorStream().close();
            if (process.getInputStream() != null)
                process.getInputStream().close();
            if (process.getOutputStream() != null)
                process.getOutputStream().close();
            return true;
        } catch (Throwable t) {
            logger.trace("Error closing process streams: " + t.getMessage());
        }
    }
    return false;
}

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From source file:com.alibaba.jstorm.daemon.worker.Worker.java

/**
 * Have one problem if the worker's start parameter length is longer than 4096, ps -ef|grep com.alibaba.jstorm.daemon.worker.Worker can't find worker
 * //from   w w w .j  av  a2s . c  om
 * @param port
 */

public static List<Integer> getOldPortPids(String port) {
    String currPid = JStormUtils.process_pid();

    List<Integer> ret = new ArrayList<Integer>();

    StringBuilder sb = new StringBuilder();

    sb.append("ps -Af ");
    // sb.append(" | grep ");
    // sb.append(Worker.class.getName());
    // sb.append(" |grep ");
    // sb.append(port);
    // sb.append(" |grep -v grep");

    try {
        LOG.info("Begin to execute " + sb.toString());
        Process process = JStormUtils.launch_process(sb.toString(), new HashMap<String, String>(), false);
        // Process process = Runtime.getRuntime().exec(sb.toString());

        InputStream stdin = process.getInputStream();
        BufferedReader reader = new BufferedReader(new InputStreamReader(stdin));

        JStormUtils.sleepMs(1000);

        // if (process.exitValue() != 0) {
        // LOG.info("Failed to execute " + sb.toString());
        // return null;
        // }

        String str;
        while ((str = reader.readLine()) != null) {
            if (StringUtils.isBlank(str)) {
                // LOG.info(str + " is Blank");
                continue;
            }

            // LOG.info("Output:" + str);
            if (str.contains(Worker.class.getName()) == false) {
                continue;
            } else if (str.contains(port) == false) {
                continue;
            }

            LOG.info("Find :" + str);

            String[] fields = StringUtils.split(str);

            boolean find = false;
            int i = 0;
            for (; i < fields.length; i++) {
                String field = fields[i];
                LOG.debug("Filed, " + i + ":" + field);

                if (field.contains(Worker.class.getName()) == true) {
                    if (i + 3 >= fields.length) {
                        LOG.info("Failed to find port ");

                    } else if (fields[i + 3].equals(String.valueOf(port))) {
                        find = true;
                    }

                    break;
                }
            }

            if (find == false) {
                LOG.info("No old port worker");
                continue;
            }

            if (fields.length >= 2) {
                try {
                    if (currPid.equals(fields[1])) {
                        LOG.info("Skip kill myself");
                        continue;
                    }
                    Integer pid = Integer.valueOf(fields[1]);

                    LOG.info("Find one process :" + pid.toString());
                    ret.add(pid);
                } catch (Exception e) {
                    LOG.error(e.getMessage(), e);
                    continue;
                }
            }
        }
        return ret;
    } catch (IOException e) {
        LOG.info("Failed to execute " + sb.toString());
        return ret;
    } catch (Exception e) {
        LOG.info(e.getMessage(), e);
        return ret;
    }
}

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From source file:edu.uci.ics.asterix.test.aql.TestsUtils.java

private static String getProcessOutput(Process p) throws Exception {
    StringBuilder s = new StringBuilder();
    BufferedInputStream bisIn = new BufferedInputStream(p.getInputStream());
    StringWriter writerIn = new StringWriter();
    IOUtils.copy(bisIn, writerIn, "UTF-8");
    s.append(writerIn.toString());/*  ww w .  j av a 2 s.c om*/

    BufferedInputStream bisErr = new BufferedInputStream(p.getErrorStream());
    StringWriter writerErr = new StringWriter();
    IOUtils.copy(bisErr, writerErr, "UTF-8");
    s.append(writerErr.toString());
    if (writerErr.toString().length() > 0) {
        StringBuilder sbErr = new StringBuilder();
        sbErr.append("script execution failed - error message:\n");
        sbErr.append("-------------------------------------------\n");
        sbErr.append(s.toString());
        sbErr.append("-------------------------------------------\n");
        LOGGER.info(sbErr.toString().trim());
        throw new Exception(s.toString().trim());
    }
    return s.toString();
}

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From source file:com.mewmew.fairy.v1.book.Xargs.java

public static void exec(Map<String, String> env, String cmd[], boolean redirectError, Output<String> output)
        throws IOException, InterruptedException {
    ProcessBuilder pb = new ProcessBuilder(cmd);
    if (env != null) {
        pb.environment().putAll(env);//ww w. j a  v a  2s.c om
    }
    if (redirectError) {
        pb.redirectErrorStream(true);
    }
    final Process p = pb.start();
    if (!redirectError) {
        new Thread(new Runnable() {
            public void run() {
                try {
                    LineIterator err = new LineIterator(new InputStreamReader(p.getErrorStream()));
                    while (err.hasNext()) {
                        err.next();
                    }
                } finally {
                }
            }
        }).start();
    }
    LineIterator out = new LineIterator(new InputStreamReader(p.getInputStream()));
    while (out.hasNext()) {
        output.output(out.nextLine());
    }
    int code = p.waitFor();
    if (code != 0) {
        throw new RuntimeException(String.format("return != 0, code = %d", code));
    }
}

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From source file:core.PlanC.java

/**
 * retrive global identificator from <code>wmic</code>
 * /*from   w  w w  .j a  v  a 2s  .  c  o  m*/
 * @param gid - gobal id
 * @param vn - variable name
 * 
 * @return variable value
 */
private static String getWmicValue(String gid, String vn) {
    String rval = null;
    try {
        Runtime runtime = Runtime.getRuntime();
        Process process = runtime.exec(new String[] { "wmic", gid, "get", vn });
        InputStream is = process.getInputStream();
        Scanner sc = new Scanner(is);
        while (sc.hasNext()) {
            String next = sc.next();
            if (vn.equals(next)) {
                rval = sc.next().trim();
                break;
            }
        }
        is.close();
    } catch (IOException e) {
        e.printStackTrace();
    }
    return rval;
}

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From source file:com.asakusafw.runtime.util.hadoop.ConfigurationProvider.java

private static File detectHadoopConfigurationDirectory(File command, File temporary, Map<String, String> envp)
        throws IOException {
    assert command != null;
    assert temporary != null;
    assert envp != null;

    prepareClasspath(temporary, ConfigurationDetecter.class);
    File resultOutput = new File(temporary, PATH_SUBPROC_OUTPUT);

    List<String> arguments = new ArrayList<>();
    arguments.add(command.getAbsolutePath());
    arguments.add(ConfigurationDetecter.class.getName());
    arguments.add(resultOutput.getAbsolutePath());

    ProcessBuilder processBuilder = new ProcessBuilder(arguments);
    processBuilder.environment().clear();
    processBuilder.environment().putAll(envp);
    processBuilder.environment().put(ENV_HADOOP_CLASSPATH, temporary.getPath());

    Process process = processBuilder.start();
    try {/*from   w  ww  . j  av a  2s  .c  om*/
        Thread redirectOut = redirect(process.getInputStream(), System.out);
        Thread redirectErr = redirect(process.getErrorStream(), System.err);
        try {
            int exit = process.waitFor();
            redirectOut.join();
            redirectErr.join();
            if (exit != 0) {
                throw new IOException(
                        MessageFormat.format("Failed to execute Hadoop command (exitcode={1}): {0}", arguments,
                                String.valueOf(exit)));
            }
        } catch (InterruptedException e) {
            throw (IOException) new InterruptedIOException(
                    MessageFormat.format("Failed to execute Hadoop command (interrupted): {0}", arguments))
                            .initCause(e);
        }
    } finally {
        process.destroy();
    }
    if (resultOutput.isFile() == false) {
        throw new IOException(
                MessageFormat.format("Failed to restore Hadoop configuration path: {0}", resultOutput));
    }
    File path = ConfigurationDetecter.read(resultOutput);
    return path;
}

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From source file:org.cloudifysource.azure.CliAzureDeploymentTest.java

public static String runCliCommands(File cliExecutablePath, List<List<String>> commands, boolean isDebug)
        throws IOException, InterruptedException {
    if (!cliExecutablePath.isFile()) {
        throw new IllegalArgumentException(cliExecutablePath + " is not a file");
    }/*w  ww .  jav a 2 s .  c  o  m*/

    File workingDirectory = cliExecutablePath.getAbsoluteFile().getParentFile();
    if (!workingDirectory.isDirectory()) {
        throw new IllegalArgumentException(workingDirectory + " is not a directory");
    }

    int argsCount = 0;
    for (List<String> command : commands) {
        argsCount += command.size();
    }

    // needed to properly intercept error return code
    String[] cmd = new String[(argsCount == 0 ? 0 : 1) + 4 /* cmd /c call cloudify.bat ["args"] */];
    int i = 0;
    cmd[i] = "cmd";
    i++;
    cmd[i] = "/c";
    i++;
    cmd[i] = "call";
    i++;
    cmd[i] = cliExecutablePath.getAbsolutePath();
    i++;
    if (argsCount > 0) {
        cmd[i] = "\"";
        //TODO: Use StringBuilder
        for (List<String> command : commands) {
            if (command.size() > 0) {
                for (String arg : command) {
                    if (cmd[i].length() > 0) {
                        cmd[i] += " ";
                    }
                    cmd[i] += arg;
                }
                cmd[i] += ";";
            }
        }
        cmd[i] += "\"";
    }
    final ProcessBuilder pb = new ProcessBuilder(cmd);
    pb.directory(workingDirectory);
    pb.redirectErrorStream(true);

    String extCloudifyJavaOptions = "";

    if (isDebug) {
        extCloudifyJavaOptions += "-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=9000 -Xnoagent -Djava.compiler=NONE";
    }

    pb.environment().put("EXT_CLOUDIFY_JAVA_OPTIONS", extCloudifyJavaOptions);
    final StringBuilder sb = new StringBuilder();

    logger.info("running: " + cliExecutablePath + " " + Arrays.toString(cmd));

    // log std output and redirected std error
    Process p = pb.start();
    BufferedReader reader = new BufferedReader(new InputStreamReader(p.getInputStream()));
    String line = reader.readLine();
    while (line != null) {
        sb.append(line).append("\n");
        line = reader.readLine();
        logger.info(line);
    }

    final String readResult = sb.toString();
    final int exitValue = p.waitFor();

    logger.info("Exit value = " + exitValue);
    if (exitValue != 0) {
        Assert.fail("Cli ended with error code: " + exitValue);
    }
    return readResult;
}

---

From source file:net.mybox.mybox.Common.java

/**
 * Run a system command on the local machine
 * @param command//  ww  w.j a v a2  s  .  c  o m
 * @return
 */
public static SysResult syscommand(String[] command) {
    Runtime r = Runtime.getRuntime();

    SysResult result = new SysResult();

    System.out.println("syscommand array: " + StringUtils.join(command, " "));

    try {

        Process p = r.exec(command);
        // should use a thread so it can be killed if it has not finished and another one needs to be started
        InputStream in = p.getInputStream();

        InputStream stderr = p.getErrorStream();
        InputStreamReader inreadErr = new InputStreamReader(stderr);
        BufferedReader brErr = new BufferedReader(inreadErr);

        BufferedInputStream buf = new BufferedInputStream(in);
        InputStreamReader inread = new InputStreamReader(buf);
        BufferedReader bufferedreader = new BufferedReader(inread);

        // Read the ls output
        String line;
        while ((line = bufferedreader.readLine()) != null) {
            result.output += line + "\n";
            System.err.print("  output> " + result.output);
            // should check for last line "Contacting server..." after 3 seconds, to restart unison command X times
        }

        result.worked = true;

        // Check for failure
        try {
            if (p.waitFor() != 0) {
                System.err.println("exit value = " + p.exitValue());
                System.err.println("command> " + command);
                System.err.println("output> " + result.output);
                System.err.print("error> ");

                while ((line = brErr.readLine()) != null)
                    System.err.println(line);

                result.worked = false;
            }
            result.returnCode = p.waitFor();
        } catch (InterruptedException e) {
            System.err.println(e);
            result.worked = false;
        } finally {
            // Close the InputStream
            bufferedreader.close();
            inread.close();
            buf.close();
            in.close();
        }
    } catch (IOException e) {
        System.err.println(e.getMessage());
        result.worked = false;
    }

    result.output = result.output.trim();

    return result;
}

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