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:be.tarsos.transcoder.ffmpeg.FFMPEGExecutor.java

public AudioInputStream pipe(Attributes attributes) throws EncoderException {
    String pipeEnvironment;//  w w w  .jav a2s  . c o  m
    String pipeArgument;
    File pipeLogFile;
    int pipeBuffer;

    if (System.getProperty("os.name").indexOf("indows") > 0) {
        pipeEnvironment = "cmd.exe";
        pipeArgument = "/C";
    } else {
        pipeEnvironment = "/bin/bash";
        pipeArgument = "-c";
    }
    pipeLogFile = new File("decoder_log.txt");
    //buffer 1/4 second of audio.
    pipeBuffer = attributes.getSamplingRate() / 4;

    AudioFormat audioFormat = Encoder.getTargetAudioFormat(attributes);

    String command = toString();

    ProcessBuilder pb = new ProcessBuilder(pipeEnvironment, pipeArgument, command);

    pb.redirectError(Redirect.appendTo(pipeLogFile));

    LOG.fine("Starting piped decoding process");
    final Process process;
    try {
        process = pb.start();
    } catch (IOException e1) {
        throw new EncoderException("Problem starting piped sub process: " + e1.getMessage());
    }

    InputStream stdOut = new BufferedInputStream(process.getInputStream(), pipeBuffer);

    //read and ignore the 46 byte wav header, only pipe the pcm samples to the audioinputstream
    byte[] header = new byte[46];
    double sleepSeconds = 0;
    double timeoutLimit = 20; //seconds

    try {
        while (stdOut.available() < header.length) {
            try {
                Thread.sleep(100);
                sleepSeconds += 0.1;
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            if (sleepSeconds > timeoutLimit) {
                throw new Error("Could not read from pipe within " + timeoutLimit + " seconds: timeout!");
            }
        }
        int bytesRead = stdOut.read(header);
        if (bytesRead != header.length) {
            throw new EncoderException(
                    "Could not read complete WAV-header from pipe. This could result in mis-aligned frames!");
        }
    } catch (IOException e1) {
        throw new EncoderException("Problem reading from piped sub process: " + e1.getMessage());
    }

    final AudioInputStream audioStream = new AudioInputStream(stdOut, audioFormat, AudioSystem.NOT_SPECIFIED);

    //This thread waits for the end of the subprocess.
    new Thread(new Runnable() {
        public void run() {
            try {
                process.waitFor();
                LOG.fine("Finished piped decoding process");
            } catch (InterruptedException e) {
                LOG.severe("Interrupted while waiting for sub process exit.");
                e.printStackTrace();
            }
        }
    }, "Decoding Pipe Reader").start();
    return audioStream;
}

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From source file:edu.clemson.cs.nestbed.server.management.instrumentation.ProgramCompileManagerImpl.java

private File getMessageFile(File dir, String messageType) throws IOException {
    log.info("getMessageFile():  directory = " + dir.getAbsolutePath() + ", messageType = " + messageType);

    ProcessBuilder processBuilder = new ProcessBuilder(GET_FILE, dir.getAbsolutePath(), messageType);
    processBuilder.redirectErrorStream(true);
    Process process = processBuilder.start();

    BufferedReader in = new BufferedReader(new InputStreamReader(process.getInputStream()));

    String line = in.readLine();/*  w  ww  . j a v a  2s.  co m*/
    in.close();

    return (line != null) ? new File(line) : null;
}

---

From source file:edu.clemson.cs.nestbed.server.management.instrumentation.ProgramCompileManagerImpl.java

private List<String> getMessageList(File dir, String tosPlatform) throws IOException {
    log.info("getMessageList(): directory = " + dir.getAbsolutePath() + ", tosPlatform = " + tosPlatform);
    List<String> messageList = new ArrayList<String>();
    ProcessBuilder processBuilder = new ProcessBuilder(GET_TYPES, dir.getAbsolutePath(), tosPlatform);
    processBuilder.redirectErrorStream(true);
    Process process = processBuilder.start();

    BufferedReader in = new BufferedReader(new InputStreamReader(process.getInputStream()));

    String line;//from   w  ww . ja  v a 2 s .  c  om
    while ((line = in.readLine()) != null) {
        messageList.add(line);
    }
    in.close();

    return messageList;
}

---

From source file:net.landora.video.mkv.MKVParser.java

public Video handleFile(File f) {

    try {//from  ww w . j  a  v  a 2 s  .  co  m
        ProcessBuilder process = new ProcessBuilder(
                ProgramsAddon.getInstance().getConfiguredPath(CommonPrograms.MKVINFO), f.getAbsolutePath());
        process.redirectErrorStream(true);
        Process p = process.start();

        StringWriter buffer = new StringWriter();
        IOUtils.copy(p.getInputStream(), buffer);
        p.waitFor();

        String reply = buffer.toString();
        buffer = null;

        if (reply.contains("No segment/level 0 element found.")) {
            return null;
        }

        Matcher mkvInfoMatcher = dataPattern.matcher(reply);

        file = new MKVFile();
        file.setFile(f);
        state = MKVParserState.Other;

        while (mkvInfoMatcher.find()) {
            depth = mkvInfoMatcher.group(1).length();
            field = mkvInfoMatcher.group(2);
            value = mkvInfoMatcher.group(3);

            switch (state) {
            case Segment_Header:
                handleSegmentHeader();
                break;
            case UnknownTrack:
                handleUnknownTrack();
                break;
            case VideoTrack:
                handleVideo();

                break;
            case AudioTrack:
                handleAudo();

                break;
            case SubtitleTrack:
                handleGeneralStreamFields();

                break;
            case Attachment:
                handleAttachment();
                break;

            case Chapter:
                handleChapter();
                break;

            case Other:
            default:
                handleStateless();
            }
        }
        return file;
    } catch (Exception e) {
        return null;
    }
}

---

From source file:com.serena.rlc.provider.filesystem.client.FilesystemClient.java

public void localExec(String execScript, String execDir, String execParams, boolean ignoreErrors)
        throws FilesystemClientException {
    Path script = Paths.get(execDir + File.separatorChar + execScript);

    try {/*  ww  w .  ja va  2s. c  o m*/
        if (!Files.exists(script)) {
            if (ignoreErrors) {
                logger.debug("Execution script " + script.toString() + " does not exist, ignoring...");
            } else {
                throw new FilesystemClientException(
                        "Execution script " + script.toString() + " does not exist");
            }
        } else {
            ProcessBuilder pb = new ProcessBuilder(script.toString());
            pb.directory(new File(script.getParent().toString()));
            System.out.println(pb.directory().toString());
            logger.debug("Executing script " + execScript + " in directory " + execDir + " with parameters: "
                    + execParams);
            Process p = pb.start(); // Start the process.
            p.waitFor(); // Wait for the process to finish.
            logger.debug("Executed script " + execScript + " successfully.");
        }
    } catch (Exception e) {
        logger.debug(e.getLocalizedMessage());
        throw new FilesystemClientException(e.getLocalizedMessage());
    }

}

---

From source file:com.microsoft.tfs.client.common.ui.protocolhandler.ProtocolHandlerWindowsRegistrationCommand.java

private String getCurrentProtocolHandlerRegistryValue() {
    BufferedReader stdout = null;
    String line;/*from  w w  w  .j  ava  2 s .c  o m*/

    try {
        final ProcessBuilder pb = new ProcessBuilder("reg", //$NON-NLS-1$
                "query", //$NON-NLS-1$
                PROTOCOL_HANDLER_REGISTRY_PATH, "/ve"); //$NON-NLS-1$
        pb.redirectErrorStream(true);

        final Process cmd = pb.start();
        int rc = cmd.waitFor();

        if (rc == 0) {
            stdout = new BufferedReader(new InputStreamReader(cmd.getInputStream()));
            while ((line = stdout.readLine()) != null) {
                int idx = 0;
                /* @formatter:off
                 * the output contains at most one line like 
                 * 
                 *    (Default)    REG_EXPAND_SZ    "%USERPROFILE%\.vsts\latestIDE.cmd" "%1"
                 * 
                 * @formatter:on
                 */
                if ((idx = line.indexOf(PROTOCOL_HANDLER_REG_VALUE_TYPE)) < 0) {
                    continue;
                }

                return line.substring(idx + PROTOCOL_HANDLER_REG_VALUE_TYPE.length()).trim();
            }
        }
    } catch (final InterruptedException e) {
        log.warn("Protocol handler registration has been cancelled."); //$NON-NLS-1$
    } catch (final Exception e) {
        log.error("Error accessing Windows registry:", e); //$NON-NLS-1$
    } finally {
        tryClose(stdout);
    }

    return null;
}

---

From source file:de.tudarmstadt.ukp.csniper.webapp.search.cqp.CqpQuery.java

private Process getCQPProcess() throws DataAccessResourceFailureException {
    try {/*from w  w w .  j av a  2 s .com*/
        List<String> cmd = new ArrayList<String>();

        cmd.add(engine.getCqpExecutable().getAbsolutePath());
        cmd.add("-r");
        cmd.add(engine.getRegistryPath().getAbsolutePath());
        // run cqp as child process (-c)
        cmd.add("-c");

        if (log.isTraceEnabled()) {
            log.trace("Invoking [" + StringUtils.join(cmd, " ") + "]");
        }

        final ProcessBuilder pb = new ProcessBuilder(cmd);
        return pb.start();
    } catch (IOException e1) {
        throw new DataAccessResourceFailureException("Unable to start CQP process", e1);
    }
}

---

From source file:edu.uci.ics.asterix.event.management.EventExecutor.java

public void executeEvent(Node node, String script, List<String> args, boolean isDaemon, Cluster cluster,
        Pattern pattern, IOutputHandler outputHandler, AsterixEventServiceClient client) throws IOException {
    List<String> pargs = new ArrayList<String>();
    pargs.add("/bin/bash");
    pargs.add(client.getEventsHomeDir() + File.separator + AsterixEventServiceUtil.EVENT_DIR + File.separator
            + EXECUTE_SCRIPT);/*  ww  w .ja  va  2 s. c  o  m*/
    StringBuffer envBuffer = new StringBuffer(IP_LOCATION + "=" + node.getClusterIp() + " ");
    boolean isMasterNode = node.getId().equals(cluster.getMasterNode().getId());

    if (!node.getId().equals(EventDriver.CLIENT_NODE_ID) && cluster.getEnv() != null) {
        for (Property p : cluster.getEnv().getProperty()) {
            if (p.getKey().equals("JAVA_HOME")) {
                String val = node.getJavaHome() == null ? p.getValue() : node.getJavaHome();
                envBuffer.append(p.getKey() + "=" + val + " ");
            } else if (p.getKey().equals(EventUtil.NC_JAVA_OPTS)) {
                if (!isMasterNode) {
                    StringBuilder builder = new StringBuilder();
                    builder.append("\"");
                    String javaOpts = p.getValue();
                    if (javaOpts != null) {
                        builder.append(javaOpts);
                    }
                    if (node.getDebugPort() != null) {
                        int debugPort = node.getDebugPort().intValue();
                        if (!javaOpts.contains("-Xdebug")) {
                            builder.append(
                                    (" " + "-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address="
                                            + debugPort));
                        }
                    }
                    builder.append("\"");
                    envBuffer.append("JAVA_OPTS" + "=" + builder + " ");
                }
            } else if (p.getKey().equals(EventUtil.CC_JAVA_OPTS)) {
                if (isMasterNode) {
                    StringBuilder builder = new StringBuilder();
                    builder.append("\"");
                    String javaOpts = p.getValue();
                    if (javaOpts != null) {
                        builder.append(javaOpts);
                    }
                    if (node.getDebugPort() != null) {
                        int debugPort = node.getDebugPort().intValue();
                        if (!javaOpts.contains("-Xdebug")) {
                            builder.append(
                                    (" " + "-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address="
                                            + debugPort));
                        }
                    }
                    builder.append("\"");
                    envBuffer.append("JAVA_OPTS" + "=" + builder + " ");
                }
            } else if (p.getKey().equals("LOG_DIR")) {
                String val = node.getLogDir() == null ? p.getValue() : node.getLogDir();
                envBuffer.append(p.getKey() + "=" + val + " ");
            } else {
                envBuffer.append(p.getKey() + "=" + p.getValue() + " ");
            }

        }
        pargs.add(cluster.getUsername() == null ? System.getProperty("user.name") : cluster.getUsername());
    }

    StringBuffer argBuffer = new StringBuffer();
    if (args != null && args.size() > 0) {
        for (String arg : args) {
            argBuffer.append(arg + " ");
        }
    }

    ProcessBuilder pb = new ProcessBuilder(pargs);
    pb.environment().put(IP_LOCATION, node.getClusterIp());
    pb.environment().put(CLUSTER_ENV, envBuffer.toString());
    pb.environment().put(SCRIPT, script);
    pb.environment().put(ARGS, argBuffer.toString());
    pb.environment().put(DAEMON, isDaemon ? "true" : "false");

    Process p = pb.start();
    if (!isDaemon) {
        BufferedInputStream bis = new BufferedInputStream(p.getInputStream());
        StringWriter writer = new StringWriter();
        IOUtils.copy(bis, writer, "UTF-8");
        String result = writer.getBuffer().toString();
        OutputAnalysis analysis = outputHandler.reportEventOutput(pattern.getEvent(), result);
        if (!analysis.isExpected()) {
            throw new IOException(analysis.getErrorMessage() + result);
        }
    }
}

---

From source file:archive_v1.Retrieve.java

public void execRetrieve(String filename) {
    String execRetrieveCommand = null;

    execRetrieveCommand = "tar xvf /dev/st0 -C /u01/restore archive/" + filename;

    Process proc = null;/* w  ww . j a  v  a  2  s .  c o  m*/
    String output = null;
    try {

        ProcessBuilder builder = new ProcessBuilder("/bin/sh", "-c", execRetrieveCommand);
        builder.redirectErrorStream(true);
        proc = builder.start();
        BufferedReader reader = new BufferedReader(new InputStreamReader(proc.getInputStream()));

        output = reader.readLine();

    } catch (Exception e) {
        e.printStackTrace();
    }

}

---

From source file:ml.shifu.shifu.core.alg.TensorflowTrainer.java

public void train() throws IOException {
    List<String> commands = buildCommands();
    ProcessBuilder pb = new ProcessBuilder(commands);

    pb.directory(new File("./"));
    pb.redirectErrorStream(true);//w  w w .  j a  v a2 s . co  m
    LOGGER.info("Start trainning sub process. Commands {}", commands.toString());
    Process process = pb.start();
    StreamCollector sc = new StreamCollector(process.getInputStream());
    sc.start();

    try {
        process.waitFor();
    } catch (InterruptedException e) {
        throw new RuntimeException(e);
    } finally {
        if (sc != null) {
            sc.close();
        }
    }
}

---

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