Example usage for org.apache.commons.exec CommandLine toStrings

List of usage examples for org.apache.commons.exec CommandLine toStrings

  1. HOME
  2. Java
  3. org.apache.commons
  4. org.apache.commons.exec.*
  5. CommandLine
  6. toStrings

Introduction

In this page you can find the example usage for org.apache.commons.exec CommandLine toStrings.

Prototype

public String[] toStrings()

Source Link

Document

Returns the command line as an array of strings.

Usage

From source file:com.tibco.tgdb.test.lib.TGServer.java

/**
 * Start the TG server synchronously./*from  w w  w .  j av  a  2s  .  c  o  m*/
 * 
 * @param timeout
 *            Number of milliseconds allowed to start the server
 * @throws TGStartException Start operation fails
 */
public void start(long timeout) throws TGStartException {

    if (this.configFile == null)
        throw new TGStartException("TGServer - Config file not set");

    if (this.logFile == null)
        this.setLogFile("tgdb_" + this.dbName);

    //this.outStream = new ByteArrayOutputStream(); // reset
    //this.errStream = new ByteArrayOutputStream(); // reset
    PumpStreamHandler psh = new PumpStreamHandler(new ByteArrayOutputStream());
    DefaultExecuteResultHandler resultHandler = new DefaultExecuteResultHandler();

    Executor tgExec = new DefaultExecutor();
    tgExec.setWorkingDirectory(new File(this.home + "/bin"));
    tgExec.setStreamHandler(psh);
    CommandLine tgCL = new CommandLine((new File(this.home + "/bin/" + process)).getAbsolutePath());
    tgCL.addArguments(new String[] { "-s", "-c", this.configFile.getAbsolutePath(), "-l", this.logFileBase });

    System.out.println("TGServer - Starting " + StringUtils.toString(tgCL.toStrings(), " "));
    try {
        tgExec.execute(tgCL, resultHandler);
    } catch (IOException ioe) {
        try {
            Thread.sleep(1000); // Make sure output/error fill up
        } catch (InterruptedException ie) {
            ;
        }
        throw new TGStartException(ioe.getMessage());
    }

    if (timeout > 0) {
        Calendar future = Calendar.getInstance();
        future.add(Calendar.MILLISECOND, (int) timeout);
        boolean started = false;
        boolean error = false;
        List<String> acceptedClients = new ArrayList<String>();
        String acceptedClient;
        while (!future.before(Calendar.getInstance())) {
            try {
                Thread.sleep(1000);
                BufferedReader reader = new BufferedReader(new StringReader(this.getOutput()));
                String line = reader.readLine();
                while (line != null) {
                    if (line.contains("Process pid:"))
                        this.setPid(Integer.parseInt(line.substring(line.lastIndexOf("Process pid:") + 12,
                                line.indexOf(",", line.lastIndexOf("Process pid:") + 12))));
                    if (line.contains("[Error]")) {
                        error = true;
                    }
                    if (line.contains("Accepting clients on")) {
                        started = true;
                        acceptedClient = line.substring(line.indexOf("- Accepting clients on") + 2);
                        if (!acceptedClients.contains(acceptedClient))
                            acceptedClients.add(acceptedClient);
                    }
                    line = reader.readLine();
                }
                reader.close();
                if (started)
                    break;
            } catch (Exception e) {
                throw new TGStartException("TGServer - " + e.getMessage());
            }
        }
        if (!started)
            throw new TGStartException(
                    "TGServer - Did not start on time (after " + timeout + " msec) - See log " + this.logFile);
        else {
            this.running = true;
            System.out.println("TGServer - Started successfully with pid " + this.pid + " :");
            System.out.println("\t\t- Log file: " + this.logFile);
            if (error)
                System.out.println("\t\t- With some error(s) - See log");
            for (String client : acceptedClients)
                System.out.println("\t\t- " + client);
            try {
                this.setBanner(this.getOutput());
            } catch (TGGeneralException tge) {
                throw new TGStartException(tge.getMessage());
            }
        }
    }
}

From source file:com.tibco.tgdb.test.lib.TGServer.java

/**
 * Initialize the TG server synchronously. This Init operation blocks until
 * it is completed.//from  w  ww.  j a v  a  2  s .  c o  m
 * 
 * @param initFile
 *            TG server init config file
 * @param forceCreation
 *            Force creation. Delete all the data in the db directory first.
 * @param timeout
 *            Number of milliseconds allowed to initialize the server
 * @return the output stream of init operation 
 * @throws TGInitException
 *             Init operation fails or timeout occurs 
 */
public String init(String initFile, boolean forceCreation, long timeout) throws TGInitException {

    File initF = new File(initFile);
    if (!initF.exists())
        throw new TGInitException("TGServer - Init file '" + initFile + "' does not exist");
    try {
        this.setInit(initF);
    } catch (TGGeneralException e) {
        throw new TGInitException(e.getMessage());
    }

    //ByteArrayOutputStream output = new ByteArrayOutputStream();

    PumpStreamHandler psh = new PumpStreamHandler(new ByteArrayOutputStream());
    Executor tgExec = new DefaultExecutor();
    tgExec.setStreamHandler(psh);
    tgExec.setWorkingDirectory(new File(this.home + "/bin"));
    CommandLine tgCL = new CommandLine((new File(this.home + "/bin/" + process)).getAbsolutePath());
    if (forceCreation)
        tgCL.addArguments(new String[] { "-i", "-f", "-Y", "-c", initFile, "-l", this.initLogFileBase });
    else
        tgCL.addArguments(new String[] { "-i", "-Y", "-c", initFile, "-l", this.initLogFileBase });

    ExecuteWatchdog tgWatch = new ExecuteWatchdog(timeout);
    tgExec.setWatchdog(tgWatch);
    System.out.println("TGServer - Initializing " + StringUtils.toString(tgCL.toStrings(), " "));
    String output = "";
    try {
        tgExec.execute(tgCL);
        output = new String(Files.readAllBytes(Paths.get(this.getInitLogFile().toURI())));
    } catch (IOException ee) {
        if (tgWatch.killedProcess())
            throw new TGInitException("TGServer - Init did not complete within " + timeout + " ms");
        else {
            try {
                Thread.sleep(1000); // make sure output has time to fill up

            } catch (InterruptedException ie) {
                ;
            }
            throw new TGInitException("TGServer - Init failed: " + ee.getMessage(), output);
        }
    }
    try {
        this.setBanner(output);
    } catch (TGGeneralException tge) {
        throw new TGInitException(tge.getMessage());
    }

    if (output.contains("TGSuccess")) {
        System.out.println("TGServer - Initialized successfully");
        return output;
    } else
        throw new TGInitException("TGServer - Init failed", output);
}

From source file:com.tibco.tgdb.test.lib.TGAdmin.java

/**
 * Invoke TG admin synchronously. //from   w  ww.j av a  2  s  . co m
 * Admin operation blocks until it is completed.
 * 
 * @param tgHome TG admin home
 * @param url Url to connect to TG server
 * @param user System User name
 * @param pwd System User password
 * @param logFile TG admin log file location - Generated by admin
 * @param logLevel Specify the log level: info/user1/user2/user3/debug/debugmemory/debugwire
 * @param cmd TG admin command file or command string
 * @param memSize Specify the maximum memory usage (MB). -1 for default (8 MB)
 * @param timeout Number of milliseconds allowed to complete admin operation
 * 
 * @return Output console of admin operation 
 * @throws TGAdminException Admin execution fails or timeout occurs 
 */
public static String invoke(String tgHome, String url, String user, String pwd, String logFile, String logLevel,
        String cmd, int memSize, long timeout) throws TGAdminException {
    if (tgHome == null)
        throw new TGAdminException("TGAdmin - TGDB home is not defined");
    File ftgHome = new File(tgHome);
    if (!ftgHome.exists())
        throw new TGAdminException("TGAdmin - TGDB home '" + tgHome + "' does not exist");

    ByteArrayOutputStream output = new ByteArrayOutputStream();
    PumpStreamHandler psh = new PumpStreamHandler(output);
    Executor tgExec = new DefaultExecutor();
    tgExec.setStreamHandler(psh);
    tgExec.setWorkingDirectory(new File(tgHome + "/bin"));

    CommandLine tgCL = new CommandLine((new File(tgHome + "/bin/" + process)).getAbsolutePath());

    // Define arguments
    List<String> args = new ArrayList<String>();
    if (url != null) {
        args.add("--url");
        args.add(url);
    }
    if (user != null) {
        args.add("--uid");
        args.add(user);
    }
    if (pwd != null) {
        args.add("--pwd");
        args.add(pwd);
    }
    if (logFile != null) {
        args.add("--log");
        args.add(logFile);
    }
    if (logLevel != null) {
        args.add("--log-level");
        args.add(logLevel);
    }
    if (memSize >= 0) {
        args.add("--max-memory");
        args.add(Integer.toString(memSize));
    }

    File cmdFile = null;
    if (cmd == null)
        throw new TGAdminException("TGAdmin - Command is required.");
    if (cmd.matches(
            "(?s)^(kill|show|describe|create|stop|info|checkpoint|dump|set|connect|disconnect|export|import|exit).*$")) {
        try {
            cmdFile = new File(tgHome + "/invokeAdminScript.txt");
            Files.write(Paths.get(cmdFile.toURI()), cmd.getBytes(StandardCharsets.UTF_8));
        } catch (IOException ioe) {
            throw new TGAdminException("TGAdmin - " + ioe.getMessage());
        }
    } else {
        cmdFile = new File(cmd);
    }

    if (!cmdFile.exists()) {
        throw new TGAdminException("TGAdmin - Command file '" + cmdFile + "' does not exist");
    }
    args.add("--file");
    args.add(cmdFile.getAbsolutePath());

    tgCL.addArguments((String[]) args.toArray(new String[args.size()]));

    ExecuteWatchdog tgWatch = new ExecuteWatchdog(timeout);
    tgExec.setWatchdog(tgWatch);
    System.out.println("TGAdmin - Invoking " + StringUtils.toString(tgCL.toStrings(), " "));

    long endProcTime = 0;
    long totalProcTime = 0;
    try {
        TGAdmin.startProcTime = System.currentTimeMillis();
        tgExec.execute(tgCL);
        endProcTime = System.currentTimeMillis();
    } catch (IOException ee) {
        if (tgWatch.killedProcess())
            throw new TGAdminException("TGAdmin - Operation did not complete within " + timeout + " ms",
                    output.toString());
        else {
            try {
                Thread.sleep(1000); // make sure output has time to fill up
            } catch (InterruptedException ie) {
                ;
            }
            throw new TGAdminException("TGAdmin - Execution failed: " + ee.getMessage(), output.toString());
        }
    }
    if (url != null && !output.toString().contains("Successfully connected to server"))
        throw new TGAdminException("TGAdmin - Admin could not connect to server " + url + " with user " + user,
                output.toString());
    if (endProcTime != 0)
        totalProcTime = endProcTime - TGAdmin.startProcTime;
    if (TGAdmin.showOperationBanner)
        System.out.println(
                "TGAdmin - Operation completed" + (totalProcTime > 0 ? " in " + totalProcTime + " msec" : ""));
    return output.toString();
}

From source file:com.tibco.tgdb.test.lib.TGAdmin.java

/**
 * Invoke TG admin synchronously. /*from  ww  w. j  ava 2  s.  c  o m*/
 * Admin operation blocks until it is completed.
 * 
 * @param url Url to connect to TG server
 * @param user User name
 * @param pwd User password
 * @param logFile TG admin log file location - Generated by admin
 * @param logLevel Specify the log level: info/user1/user2/user3/debug/debugmemory/debugwire
 * @param cmdFile TG admin command file - Need to exist before invoking admin
 * @param memSize Specify the maximum memory usage (MB). -1 for default (8 MB)
 * @param timeout Number of milliseconds allowed to complete admin operation
 * 
 * @return Output console of admin operation 
 * @throws TGAdminException Admin execution fails or timeout occurs 
 */
public String invoke(String url, String user, String pwd, String logFile, String logLevel, String cmdFile,
        int memSize, long timeout) throws TGAdminException {

    ByteArrayOutputStream output = new ByteArrayOutputStream();
    PumpStreamHandler psh = new PumpStreamHandler(output);
    Executor tgExec = new DefaultExecutor();
    tgExec.setStreamHandler(psh);
    tgExec.setWorkingDirectory(new File(this.home + "/bin"));

    CommandLine tgCL = new CommandLine((new File(this.home + "/bin/" + process)).getAbsolutePath());

    // Define arguments
    List<String> args = new ArrayList<String>();
    if (url != null) {
        args.add("--url");
        args.add(url);
    }
    if (user != null) {
        args.add("--uid");
        args.add(user);
    }
    if (pwd != null) {
        args.add("--pwd");
        args.add(pwd);
    }
    if (logFile != null) {
        args.add("--log");
        args.add(logFile);
    }
    if (logLevel != null) {
        args.add("--log-level");
        args.add(logLevel);
    }
    if (memSize >= 0) {
        args.add("--max-memory");
        args.add(Integer.toString(memSize));
    }
    if (cmdFile == null)
        throw new TGAdminException("TGAdmin - Command file is required.");
    args.add("--file");
    args.add(cmdFile);

    tgCL.addArguments((String[]) args.toArray(new String[args.size()]));

    ExecuteWatchdog tgWatch = new ExecuteWatchdog(timeout);
    tgExec.setWatchdog(tgWatch);
    System.out.println("TGAdmin - Invoking " + StringUtils.toString(tgCL.toStrings(), " "));
    long startProcTime = 0;
    long endProcTime = 0;
    long totalProcTime = 0;
    try {
        startProcTime = System.currentTimeMillis();
        tgExec.execute(tgCL);
        endProcTime = System.currentTimeMillis();
    } catch (IOException ee) {
        if (tgWatch.killedProcess())
            throw new TGAdminException("TGAdmin - Operation did not complete within " + timeout + " ms",
                    output.toString());
        else {
            try {
                Thread.sleep(1000); // make sure output has time to fill up
            } catch (InterruptedException ie) {
                ;
            }
            throw new TGAdminException("TGAdmin - Execution failed: " + ee.getMessage(), output.toString());
        }
    }
    if (!output.toString().contains("Successfully connected to server"))
        throw new TGAdminException("TGAdmin - Admin could not connect to server", output.toString());
    if (endProcTime != 0)
        totalProcTime = endProcTime - startProcTime;
    System.out.println(
            "TGAdmin - Operation completed" + (totalProcTime > 0 ? " in " + totalProcTime + " msec" : ""));
    return output.toString();
}

From source file:org.codehaus.mojo.exec.ExtendedExecutor.java

@Override
protected Process launch(CommandLine command, Map<String, String> env, File dir) throws IOException {
    if (dir != null && !dir.exists()) {
        throw new IOException(dir + " doesn't exist.");
    }//www .  jav  a 2 s.c  o  m
    ProcessBuilder pb = new ProcessBuilder(command.toStrings());
    pb.environment().putAll(env);
    pb.directory(dir);
    if (inheritIo) {
        pb.inheritIO();
    }
    return pb.start();
}

From source file:org.lucidj.launcher.Launcher.java

private void launch(String[] args) {
    System.out.println("Exec: " + java_exe);

    CommandLine cmdline = new CommandLine(java_exe);

    //----------/* w w  w  .ja va  2s. c om*/
    // JVM args
    //----------

    cmdline.addArgument("-server");
    cmdline.addArgument("-Xms128M");
    cmdline.addArgument("-Xmx1024M");
    cmdline.addArgument("-XX:+UnlockDiagnosticVMOptions");
    cmdline.addArgument("-XX:+UnsyncloadClass");
    cmdline.addArgument("-Djava.awt.headless=true");
    cmdline.addArgument("-Dcom.sun.management.jmxremote");

    //-----------
    // Classpath
    //-----------

    List<String> path_elements = new ArrayList<>();

    String classpath_extra = karaf_properties.getProperty(".classpath.extra");

    if (classpath_extra != null) {
        // TODO: HANDLE COMPOUND classpath_extra; HANDLE MULTIPLE .classpath.*
        // Get all exported classpath files
        File[] file_list = new File(classpath_extra).listFiles();

        // And add to classpath if found
        if (file_list != null) {
            for (int i = 0; i < file_list.length; i++) {
                if (file_list[i].isFile() && file_list[i].getName().toLowerCase().endsWith(".jar")) {
                    path_elements.add(file_list[i].getAbsolutePath());
                }
            }
        }
    }

    cmdline.addArgument("-classpath");
    cmdline.addArgument(string_join(path_separator, path_elements), false);

    //-------------
    // LucidJ args
    //-------------

    addArgument(cmdline, "system.home", System.getProperty("system.home"));
    addArgument(cmdline, "system.conf", System.getProperty("system.conf"));
    addArgument(cmdline, "system.bootstrap", System.getProperty("system.bootstrap"));
    addArgument(cmdline, "system.deploy", System.getProperty("system.deploy"));

    // Copy the parsed properties to command line
    for (String key : karaf_properties.stringPropertyNames()) {
        if (!key.startsWith(".")) {
            addArgument(cmdline, key, karaf_properties.getProperty(key));
        }
    }

    if (System.getProperty("user.conf") != null) {
        addArgument(cmdline, "user.conf", System.getProperty("user.conf"));
    }

    // Class to exec
    cmdline.addArgument(main_class);

    // Add class arguments
    if (args != null) {
        for (String arg : args) {
            cmdline.addArgument(arg);
        }
    }

    //------------------
    // Ready to launch!
    //------------------

    if (verbose) {
        String[] argv = cmdline.toStrings();

        for (int i = 0; i < argv.length; i++) {
            System.out.println("argv[" + i + "] = '" + argv[i] + "'");
        }
    }

    launch_cmdline(cmdline);
}

From source file:org.opennms.netmgt.measurements.impl.RrdtoolXportFetchStrategy.java

/**
 * {@inheritDoc}/*from   w  w w  .j a  va 2  s .com*/
 */
@Override
protected FetchResults fetchMeasurements(long start, long end, long step, int maxrows,
        Map<Source, String> rrdsBySource, Map<String, Object> constants) throws RrdException {

    String rrdBinary = System.getProperty("rrd.binary");
    if (rrdBinary == null) {
        throw new RrdException("No RRD binary is set.");
    }

    final long startInSeconds = (long) Math.floor(start / 1000);
    final long endInSeconds = (long) Math.floor(end / 1000);

    long stepInSeconds = (long) Math.floor(step / 1000);
    // The step must be strictly positive
    if (stepInSeconds <= 0) {
        stepInSeconds = 1;
    }

    final CommandLine cmdLine = new CommandLine(rrdBinary);
    cmdLine.addArgument("xport");
    cmdLine.addArgument("--step");
    cmdLine.addArgument("" + stepInSeconds);
    cmdLine.addArgument("--start");
    cmdLine.addArgument("" + startInSeconds);
    cmdLine.addArgument("--end");
    cmdLine.addArgument("" + endInSeconds);
    if (maxrows > 0) {
        cmdLine.addArgument("--maxrows");
        cmdLine.addArgument("" + maxrows);
    }

    // Use labels without spaces when executing the xport command
    // These are mapped back to the requested labels in the response
    final Map<String, String> labelMap = Maps.newHashMap();

    int k = 0;
    for (final Map.Entry<Source, String> entry : rrdsBySource.entrySet()) {
        final Source source = entry.getKey();
        final String rrdFile = entry.getValue();
        final String tempLabel = Integer.toString(++k);
        labelMap.put(tempLabel, source.getLabel());

        cmdLine.addArgument(String.format("DEF:%s=%s:%s:%s", tempLabel, Utils.escapeColons(rrdFile),
                Utils.escapeColons(source.getEffectiveDataSource()), source.getAggregation()));
        cmdLine.addArgument(String.format("XPORT:%s:%s", tempLabel, tempLabel));
    }

    // Use commons-exec to execute rrdtool
    final DefaultExecutor executor = new DefaultExecutor();

    // Capture stdout/stderr
    final ByteArrayOutputStream stdout = new ByteArrayOutputStream();
    final ByteArrayOutputStream stderr = new ByteArrayOutputStream();
    executor.setStreamHandler(new PumpStreamHandler(stdout, stderr, null));

    // Fail if we get a non-zero exit code
    executor.setExitValue(0);

    // Fail if the process takes too long
    final ExecuteWatchdog watchdog = new ExecuteWatchdog(XPORT_TIMEOUT_MS);
    executor.setWatchdog(watchdog);

    // Export
    RrdXport rrdXport;
    try {
        LOG.debug("Executing: {}", cmdLine);
        executor.execute(cmdLine);

        final XMLReader xmlReader = XMLReaderFactory.createXMLReader();
        xmlReader.setFeature("http://apache.org/xml/features/nonvalidating/load-external-dtd", false);
        final SAXSource source = new SAXSource(xmlReader, new InputSource(new StringReader(stdout.toString())));
        final JAXBContext jc = JAXBContext.newInstance(RrdXport.class);
        final Unmarshaller u = jc.createUnmarshaller();
        rrdXport = (RrdXport) u.unmarshal(source);
    } catch (IOException e) {
        throw new RrdException("An error occured while executing '" + StringUtils.join(cmdLine.toStrings(), " ")
                + "' with stderr: " + stderr.toString(), e);
    } catch (SAXException | JAXBException e) {
        throw new RrdException("The output generated by 'rrdtool xport' could not be parsed.", e);
    }

    final int numRows = rrdXport.getRows().size();
    final int numColumns = rrdXport.getMeta().getLegends().size();
    final long xportStartInMs = rrdXport.getMeta().getStart() * 1000;
    final long xportStepInMs = rrdXport.getMeta().getStep() * 1000;

    final long timestamps[] = new long[numRows];
    final double values[][] = new double[numColumns][numRows];

    // Convert rows to columns
    int i = 0;
    for (final XRow row : rrdXport.getRows()) {
        // Derive the timestamp from the start and step since newer versions
        // of rrdtool no longer include it as part of the rows
        timestamps[i] = xportStartInMs + xportStepInMs * i;
        for (int j = 0; j < numColumns; j++) {
            if (row.getValues() == null) {
                // NMS-7710: Avoid NPEs, in certain cases the list of values may be null
                throw new RrdException(
                        "The output generated by 'rrdtool xport' was not recognized. Try upgrading your rrdtool binaries.");
            }
            values[j][i] = row.getValues().get(j);
        }
        i++;
    }

    // Map the columns by label
    // The legend entries are in the same order as the column values
    final Map<String, double[]> columns = Maps.newHashMapWithExpectedSize(numColumns);
    i = 0;
    for (String label : rrdXport.getMeta().getLegends()) {
        columns.put(labelMap.get(label), values[i++]);
    }

    return new FetchResults(timestamps, columns, xportStepInMs, constants);
}

From source file:org.opennms.web.rest.measurements.fetch.RrdtoolXportFetchStrategy.java

/**
 * {@inheritDoc}/*from w  ww .ja v  a  2  s. c  om*/
 */
@Override
protected FetchResults fetchMeasurements(long start, long end, long step, int maxrows,
        Map<Source, String> rrdsBySource, Map<String, Object> constants) throws RrdException {

    String rrdBinary = System.getProperty("rrd.binary");
    if (rrdBinary == null) {
        throw new RrdException("No RRD binary is set.");
    }

    final long startInSeconds = (long) Math.floor(start / 1000);
    final long endInSeconds = (long) Math.floor(end / 1000);

    long stepInSeconds = (long) Math.floor(step / 1000);
    // The step must be strictly positive
    if (stepInSeconds <= 0) {
        stepInSeconds = 1;
    }

    final CommandLine cmdLine = new CommandLine(rrdBinary);
    cmdLine.addArgument("xport");
    cmdLine.addArgument("--step");
    cmdLine.addArgument("" + stepInSeconds);
    cmdLine.addArgument("--start");
    cmdLine.addArgument("" + startInSeconds);
    cmdLine.addArgument("--end");
    cmdLine.addArgument("" + endInSeconds);
    if (maxrows > 0) {
        cmdLine.addArgument("--maxrows");
        cmdLine.addArgument("" + maxrows);
    }

    // Use labels without spaces when executing the xport command
    // These are mapped back to the requested labels in the response
    final Map<String, String> labelMap = Maps.newHashMap();

    int k = 0;
    for (final Map.Entry<Source, String> entry : rrdsBySource.entrySet()) {
        final Source source = entry.getKey();
        final String rrdFile = entry.getValue();
        final String tempLabel = Integer.toString(++k);
        labelMap.put(tempLabel, source.getLabel());

        cmdLine.addArgument(String.format("DEF:%s=%s:%s:%s", tempLabel, rrdFile, source.getAttribute(),
                source.getAggregation()));
        cmdLine.addArgument(String.format("XPORT:%s:%s", tempLabel, tempLabel));
    }

    // Use commons-exec to execute rrdtool
    final DefaultExecutor executor = new DefaultExecutor();

    // Capture stdout/stderr
    final ByteArrayOutputStream stdout = new ByteArrayOutputStream();
    final ByteArrayOutputStream stderr = new ByteArrayOutputStream();
    executor.setStreamHandler(new PumpStreamHandler(stdout, stderr, null));

    // Fail if we get a non-zero exit code
    executor.setExitValue(0);

    // Fail if the process takes too long
    final ExecuteWatchdog watchdog = new ExecuteWatchdog(XPORT_TIMEOUT_MS);
    executor.setWatchdog(watchdog);

    // Export
    RrdXport rrdXport;
    try {
        executor.execute(cmdLine);

        final XMLReader xmlReader = XMLReaderFactory.createXMLReader();
        xmlReader.setFeature("http://apache.org/xml/features/nonvalidating/load-external-dtd", false);
        final SAXSource source = new SAXSource(xmlReader, new InputSource(new StringReader(stdout.toString())));
        final JAXBContext jc = JAXBContext.newInstance(RrdXport.class);
        final Unmarshaller u = jc.createUnmarshaller();
        rrdXport = (RrdXport) u.unmarshal(source);
    } catch (IOException e) {
        throw new RrdException("An error occured while executing '" + StringUtils.join(cmdLine.toStrings(), " ")
                + "' with stderr: " + stderr.toString(), e);
    } catch (SAXException | JAXBException e) {
        throw new RrdException("The output generated by 'rrdtool xport' could not be parsed.", e);
    }

    final int numRows = rrdXport.getRows().size();
    final int numColumns = rrdXport.getMeta().getLegends().size();

    final long timestamps[] = new long[numRows];
    final double values[][] = new double[numColumns][numRows];

    // Convert rows to columns
    int i = 0;
    for (final XRow row : rrdXport.getRows()) {
        timestamps[i] = row.getTimestamp() * 1000;
        for (int j = 0; j < numColumns; j++) {
            if (row.getValues() == null) {
                // NMS-7710: Avoid NPEs, in certain cases the list of values may be null
                throw new RrdException(
                        "The output generated by 'rrdtool xport' was not recognized. Try upgrading your rrdtool binaries.");
            }
            values[j][i] = row.getValues().get(j);
        }
        i++;
    }

    // Map the columns by label
    // The legend entries are in the same order as the column values
    final Map<String, double[]> columns = Maps.newHashMapWithExpectedSize(numColumns);
    i = 0;
    for (String label : rrdXport.getMeta().getLegends()) {
        columns.put(labelMap.get(label), values[i++]);
    }

    return new FetchResults(timestamps, columns, rrdXport.getMeta().getStep() * 1000, constants);
}

From source file:org.openremote.controller.protocol.shellexe.ShellExeCommand.java

private String executeCommand() {
    logger.debug("Will start shell command: " + commandPath + " and use params: " + commandParams);
    String result = "";
    Process proc = null;//w  ww .jav  a 2 s. c  om

    try {
        // Use the commons-exec to parse correctly the arguments, respecting quotes and spaces to separate parameters
        final CommandLine cmdLine = new CommandLine(commandPath);
        if (commandParams != null) {
            cmdLine.addArguments(commandParams);
        }
        proc = Runtime.getRuntime().exec(cmdLine.toStrings());
        final BufferedReader reader = new BufferedReader(new InputStreamReader(proc.getInputStream()));
        final StringBuffer resultBuffer = new StringBuffer();
        boolean first = true;
        for (String tmp = reader.readLine(); tmp != null; tmp = reader.readLine()) {
            if (!first)
                resultBuffer.append("\n");
            first = false;
            resultBuffer.append(tmp);
        }
        result = resultBuffer.toString();
    } catch (IOException e) {
        logger.error("Could not execute shell command: " + commandPath, e);
    } finally {
        if (proc != null)
            proc.destroy();
    }
    logger.debug("Shell command: " + commandPath + " returned: " + result);
    return result;
}

From source file:org.sikuli.natives.LinuxUtil.java

@Override
public void checkLibAvailability() {
    List<CommandLine> commands = Arrays.asList(CommandLine.parse("wmctrl -m"),
            CommandLine.parse("xdotool version"), CommandLine.parse("killall --version"));
    String msg = "";
    for (CommandLine cmd : commands) {
        try {/*from  w  w w  .  j a v  a 2  s .  com*/
            DefaultExecutor executor = new DefaultExecutor();
            executor.setExitValue(0);
            //suppress system output
            executor.setStreamHandler(new PumpStreamHandler(null));
            executor.execute(cmd);
        } catch (IOException e) {
            String executable = cmd.toStrings()[0];
            if (executable.equals("wmctrl")) {
                wmctrlAvail = false;
            }
            if (executable.equals("xdotool")) {
                xdoToolAvail = false;
            }
            msg += "command '" + executable + "' is not executable\n";
        }
    }
    if (!msg.isEmpty()) {
        msg += "Please check the availability - some features might not work without!";
        Debug.error(msg);
    }
}