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:ape.NetworkDisconnectCommand.java

/**
 * This method actually executes the command that would disconnect the network
 *//*w  w w . ja  v a2 s .c  om*/
private boolean executecommand(double time) throws IOException {
    String cmd = "ifdown eth0 && sleep " + time + " && /etc/init.d/network restart";
    ProcessBuilder pb = new ProcessBuilder("bash", "-c", cmd);
    pb.redirectErrorStream(true);
    Process p = null;

    try {
        p = pb.start();
    } catch (IOException e) {
        e.printStackTrace();
        return false;
    }

    try {
        if (p.waitFor() != 0) {
            System.out.println(
                    "ERROR: Non-zero return code (" + p.exitValue() + ") when executing: '" + cmd + "'");
            Main.logger
                    .info("ERROR: Non-zero return code (" + p.exitValue() + ") when executing: '" + cmd + "'");

            ProcessBuilder tmp2 = new ProcessBuilder("bash", "-c", "/etc/init.d/network restart");
            Process ptmp = tmp2.start();
            try {
                if (ptmp.waitFor() == 0)
                    System.out.println("Connection resumed");
                else {
                    System.out.println("Connection resume failed");
                    return false;
                }
            } catch (InterruptedException e1) {
                e1.printStackTrace();
                System.err.println("Catches an exception when trying to recover the network");
                return false;
            }

            return false;
        }
    } catch (InterruptedException e) {
        System.err.println("Executing Command catches an Interrupt, resume connection");
        ProcessBuilder tmp2 = new ProcessBuilder("bash", "-c", "/etc/init.d/network restart");
        Process ptmp = tmp2.start();
        try {
            if (ptmp.waitFor() == 0)
                System.out.println("Connection Resumed");
            else {
                System.out.println("Connection Resumed Failed");
                return false;
            }
        } catch (InterruptedException e1) {
            e1.printStackTrace();
            System.err.println("Catches an exception when trying to recover the network");
            return false;

        }
        e.printStackTrace();
        return false;
    }

    return true;
}

---

From source file:com.palantir.tslint.services.Bridge.java

private void start() {
    File nodeFile = Bridge.findNode();
    String nodePath = nodeFile.getAbsolutePath();

    // get the path to the bridge.js file
    File bundleFile;// ww  w  . j  av  a 2 s. c om
    try {
        bundleFile = FileLocator.getBundleFile(TSLintPlugin.getDefault().getBundle());
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
    File bridgeFile = new File(bundleFile, "bin/bridge.js");
    String bridgePath = bridgeFile.getAbsolutePath();

    // construct the arguments
    ImmutableList.Builder<String> argsBuilder = ImmutableList.builder();
    argsBuilder.add(nodePath);
    argsBuilder.add(bridgePath);

    // start the node process and create a reader/writer for its stdin/stdout
    List<String> args = argsBuilder.build();
    ProcessBuilder processBuilder = new ProcessBuilder(args.toArray(new String[args.size()]));
    try {
        this.nodeProcess = processBuilder.start();
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
    this.nodeStdout = new BufferedReader(
            new InputStreamReader(this.nodeProcess.getInputStream(), Charsets.UTF_8));
    this.nodeStdin = new PrintWriter(new OutputStreamWriter(this.nodeProcess.getOutputStream(), Charsets.UTF_8),
            true);

    // add a shutdown hook to destroy the node process in case its not properly disposed
    Runtime.getRuntime().addShutdownHook(new ShutdownHookThread());
}

---

From source file:com.cisco.dvbu.cmdline.vcs.spi.AbstractLifecycleListener.java

private Process execute(ProcessBuilder processBuilder) throws VCSException {
    Process result = null;/*from   www . j  a va2 s .c o  m*/

    try {
        result = processBuilder.start();
    } catch (IOException e) {
        throw new VCSException(e);
    }

    return result;
}

---

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  w  ww. j  ava 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:com.palantir.typescript.services.Bridge.java

private void start() {
    String nodePath = TypeScriptPlugin.getDefault().getPreferenceStore()
            .getString(IPreferenceConstants.GENERAL_NODE_PATH);
    if (Strings.isNullOrEmpty(nodePath)) {
        throw new IllegalStateException(
                "Node.js could not be found.  If it is installed to a location not on the PATH, please specify the location in the TypeScript preferences.");
    }/*  w  ww  .  j a v a2 s .co  m*/

    // get the path to the bridge.js file
    File bundleFile;
    try {
        bundleFile = FileLocator.getBundleFile(TypeScriptPlugin.getDefault().getBundle());
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
    File bridgeFile = new File(bundleFile, "bin/bridge.js");
    String bridgePath = bridgeFile.getAbsolutePath();

    // construct the arguments
    ImmutableList.Builder<String> argsBuilder = ImmutableList.builder();
    argsBuilder.add(nodePath);
    if (NODE_DEBUG) {
        argsBuilder.add(NODE_DEBUG_PATH);
        if (!NODE_DEBUG_BREAK_ON_START) {
            argsBuilder.add("--no-debug-brk");
        }
        argsBuilder.add("--web-port=" + Integer.toString(NODE_DEBUG_PORT++));
        argsBuilder.add("--debug-port=" + Integer.toString(NODE_DEBUG_PORT++));
    }
    argsBuilder.add(bridgePath);

    // start the node process and create a reader/writer for its stdin/stdout
    List<String> args = argsBuilder.build();
    ProcessBuilder processBuilder = new ProcessBuilder(args.toArray(new String[args.size()]));
    try {
        this.nodeProcess = processBuilder.start();
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
    this.nodeStdout = new BufferedReader(
            new InputStreamReader(this.nodeProcess.getInputStream(), Charsets.UTF_8));
    this.nodeStdin = new PrintWriter(new OutputStreamWriter(this.nodeProcess.getOutputStream(), Charsets.UTF_8),
            true);

    // add a shutdown hook to destroy the node process in case its not properly disposed
    Runtime.getRuntime().addShutdownHook(new ShutdownHookThread());
}

---

From source file:com.alibaba.jstorm.yarn.utils.JStormUtils.java

protected static Process launchProcess(final List<String> cmdlist, final Map<String, String> environment)
        throws IOException {
    ProcessBuilder builder = new ProcessBuilder(cmdlist);
    builder.redirectErrorStream(true);/*from   w  w w . j  av  a  2 s . co m*/
    Map<String, String> process_evn = builder.environment();
    for (Entry<String, String> entry : environment.entrySet()) {
        process_evn.put(entry.getKey(), entry.getValue());
    }

    return builder.start();
}

---

From source file:org.fcrepo.importexport.integration.ExecutableJarIT.java

private Process startJarProcess(final String... args) throws IOException {
    final String[] fullArgs = new String[3 + args.length];
    fullArgs[0] = "java";
    fullArgs[1] = "-jar";
    fullArgs[2] = EXECUTABLE;//from  w w  w . j  a v  a 2s . c  o  m
    System.arraycopy(args, 0, fullArgs, 3, args.length);
    final ProcessBuilder builder = new ProcessBuilder(fullArgs);

    builder.directory(new File(TARGET_DIR));
    final Process process = builder.start();
    logger.debug("Output of jar run: {}", IOUtils.toString(process.getInputStream()));
    return process;
}

---

From source file:com.thoughtworks.go.util.ProcessManager.java

Process startProcess(ProcessBuilder processBuilder, String commandLineForDisplay) {
    Process process;/*from  w w  w.j av  a  2s .  c  o m*/
    try {
        if (LOG.isDebugEnabled()) {
            LOG.debug("[Command Line] START command " + commandLineForDisplay);
        }
        process = processBuilder.start();
        if (LOG.isDebugEnabled()) {
            LOG.debug("[Command Line] END command " + commandLineForDisplay);
        }
    } catch (IOException e) {
        LOG.error(String.format("[Command Line] Failed executing [%s]", commandLineForDisplay));
        LOG.error(String.format("[Command Line] Agent's Environment Variables: %s", System.getenv()));
        throw new CommandLineException(
                String.format("Error while executing [%s] \n Make sure this command can execute manually.",
                        commandLineForDisplay),
                e);
    }
    return process;
}

---

From source file:com.anrisoftware.globalpom.exec.core.DefaultProcessTask.java

private void startProcess(ProcessBuilder builder)
        throws IOException, InterruptedException, CommandExecException, ExecutionException {
    Process process = builder.start();
    List<Future<?>> streamsTasks = createProcessStreams(process);
    this.process = process;
    this.ret = process.waitFor();
    waitForStreams(streamsTasks);//from   w w  w .jav a 2 s  .c  om
    setChanged();
    notifyObservers();
    if (exitCodes != null && !checkExitCodes(ret, exitCodes)) {
        throw log.invalidExitCode(this, ret, exitCodes, commandLine);
    }
}

---

From source file:com.mtgi.analytics.test.AbstractPerformanceTestCase.java

private void runTest(ServerSocket listener, ProcessBuilder launcher, StatisticsMBean stats, byte[] jobData)
        throws IOException, InterruptedException {
    Process proc = launcher.start();

    //connect stdout and stderr to parent process streams
    if (log.isDebugEnabled()) {
        new PipeThread(proc.getInputStream(), System.out).start();
        new PipeThread(proc.getErrorStream(), System.err).start();
    } else {/*from  w  w  w  .j  a  v  a 2  s.com*/
        NullOutput sink = new NullOutput();
        new PipeThread(proc.getInputStream(), sink).start();
        new PipeThread(proc.getErrorStream(), sink).start();
    }

    //wait for the incoming connection from the child process.
    Socket sock = listener.accept();
    try {
        //connection established, send the job.
        OutputStream os = sock.getOutputStream();
        os.write(jobData);
        os.flush();

        //read measurements back.
        DataInputStream dis = new DataInputStream(sock.getInputStream());
        for (long measure = dis.readLong(); measure >= 0; measure = dis.readLong())
            stats.add(measure);

        //send ack byte to tell the child proc its ok to hang up.
        os.write(1);
        os.flush();

    } finally {
        sock.close();
    }

    assertEquals("Child process ended successfully", 0, proc.waitFor());
}

---

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