Example usage for org.apache.commons.exec DefaultExecutor DefaultExecutor

Introduction

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

Prototype

public DefaultExecutor() 

Source Link

Document

Default constructor creating a default PumpStreamHandler and sets the working directory of the subprocess to the current working directory.

Usage

From source file:org.opennms.systemreport.system.ThreadReportPlugin.java

private void triggerThreadDump() {
    String kill = findBinary("kill");

    if (kill != null) {
        for (final Integer pid : getOpenNMSProcesses()) {
            LOG.debug("pid = {}", pid);
            CommandLine command = CommandLine.parse(kill + " -3 " + pid.toString());
            try {
                LOG.trace("running '{}'", command);
                DefaultExecutor executor = new DefaultExecutor();
                executor.setWatchdog(new ExecuteWatchdog(5000));
                int exitValue = executor.execute(command);
                LOG.trace("finished '{}'", command);
                if (exitValue != 0) {
                    LOG.warn("'{}' exited non-zero: {}", command, exitValue);
                }//from   w w w  .  j av  a  2  s. c o m
            } catch (final Exception e) {
                LOG.warn("Unable to run kill -3 on '{}': you might need to run system-report as root.", pid, e);
            }
        }
    }
}

---

From source file:org.opennms.systemreport.SystemReportResourceLocator.java

@Override
public String slurpOutput(final String commandString, final boolean ignoreExitCode) {
    final CommandLine command = CommandLine.parse(commandString);
    LOG.debug("running: {}", commandString);

    final Map<String, String> environment = new HashMap<String, String>(System.getenv());
    environment.put("COLUMNS", "2000");
    DataInputStream input = null;
    PipedInputStream pis = null;/*from  w w w.  j av a 2s.  co  m*/
    OutputSuckingParser parser = null;
    String outputText = null;
    final DefaultExecutor executor = new DefaultExecutor();

    final PipedOutputStream output = new PipedOutputStream();
    final PumpStreamHandler streamHandler = new PumpStreamHandler(output, output);
    executor.setWatchdog(new ExecuteWatchdog(m_maxProcessWait));
    executor.setStreamHandler(streamHandler);
    if (ignoreExitCode) {
        executor.setExitValues(null);
    }

    try {
        LOG.trace("executing '{}'", commandString);
        pis = new PipedInputStream(output);
        input = new DataInputStream(pis);
        parser = new OutputSuckingParser(input);
        parser.start();
        final int exitValue = executor.execute(command, environment);
        IOUtils.closeQuietly(output);
        parser.join(m_maxProcessWait);
        if (!ignoreExitCode && exitValue != 0) {
            LOG.debug("error running '{}': exit value was {}", commandString, exitValue);
        } else {
            outputText = parser.getOutput();
        }
        LOG.trace("finished '{}'", commandString);
    } catch (final Exception e) {
        LOG.debug("Failed to run '{}'", commandString, e);
    } finally {
        IOUtils.closeQuietly(output);
        IOUtils.closeQuietly(input);
        IOUtils.closeQuietly(pis);
    }

    return outputText;
}

---

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

/**
 * {@inheritDoc}//from  w w  w . j  ava2s  . 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.openqa.selenium.iphone.IPhoneSimulatorBinary.java

public void launch() {
    Executor executor = new DefaultExecutor();
    executor.setStreamHandler(new PumpStreamHandler(createOutputStream()));
    try {/*from   w w w .  j a  v  a  2 s  .  com*/
        exitCode = executor.execute(commandLine);
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}

---

From source file:org.openqa.selenium.iphone.IPhoneSimulatorBinary.java

public void shutdown() {
    try {/* www .j a v  a2  s.c o m*/
        File scriptFile = File.createTempFile("iWebDriver.kill.", ".script");
        FileWriter writer = new FileWriter(scriptFile);
        writer.write("ps ax | grep 'iPhone Simulator' | grep -v grep | awk '{print $1}' | xargs kill");
        writer.flush();
        writer.close();
        FileHandler.makeExecutable(scriptFile);
        CommandLine killCommandLine = CommandLine.parse(scriptFile.getAbsolutePath());
        Executor executor = new DefaultExecutor();
        executor.setStreamHandler(new PumpStreamHandler(null, null));
        getOutputIgnoringExecutor().execute(killCommandLine);
    } catch (Exception ignored) {
    }
    // Wait until the process really quits (nothing is bound to port 3001)
    // TODO something other than Thread.sleep
    // client = new HttpClientFactory().getHttpClient();
    try {
        Thread.sleep(5000);
    } catch (InterruptedException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    exitCode = null;
}

---

From source file:org.openqa.selenium.iphone.IPhoneSimulatorBinary.java

private static Executor getOutputIgnoringExecutor() {
    Executor executor = new DefaultExecutor();
    executor.setStreamHandler(new PumpStreamHandler(null, null));
    return executor;
}

---

From source file:org.openqa.selenium.iphone.IPhoneSimulatorCommandExecutorTest.java

private void killIphoneSimulatorProcesses() {
    try {//from  ww  w.  j  a  v  a2  s.  c o m
        File scriptFile = File.createTempFile("iWebDriver.kill.", ".script");
        FileWriter writer = new FileWriter(scriptFile);
        writer.write("ps ax | grep 'iPhone Simulator' | grep -v grep | awk '{print $1}' | xargs kill");
        writer.flush();
        writer.close();
        FileHandler.makeExecutable(scriptFile);
        CommandLine killCommandLine = CommandLine.parse(scriptFile.getAbsolutePath());
        Executor executor = new DefaultExecutor();
        executor.setStreamHandler(new PumpStreamHandler(null, null));
        executor.execute(killCommandLine);
        // need to wait for the port to free up
        // TODO same as needs to be done in IPhoneSimulatorBinary
        Thread.sleep(5000);
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

---

From source file:org.owasp.goatdroid.gui.emulator.Emulator.java

static public boolean isAndroidDeviceAvailable() {

    ByteArrayOutputStream stdout = new ByteArrayOutputStream();
    PumpStreamHandler psh = new PumpStreamHandler(stdout);
    try {/* w  w w  .j  a  v a  2s .  co m*/

        CommandLine cmdLine = new CommandLine(
                Config.getSDKPath() + getSlash() + "platform-tools" + getSlash() + "adb");
        cmdLine.addArgument("devices", false);
        DefaultExecutor executor = new DefaultExecutor();
        executor.setStreamHandler(psh);
        executor.execute(cmdLine);
        String stringy = stdout.toString();
        stdout.close();
        /*
         * Shell command response will be 27 characters in length if there
         * are no devices currently attached.
         * 
         * Output is: List of devices attached \n\n
         */
        if (stringy.length() > 27)
            return true;
        else
            return false;
    } catch (CorruptConfigException e) {
        return false;
    } catch (IOException e) {
        return false;
    }
}

---

From source file:org.owasp.goatdroid.gui.emulator.Emulator.java

static public String[] getAvailableAndroidDevices() {

    ByteArrayOutputStream stdout = new ByteArrayOutputStream();
    PumpStreamHandler psh = new PumpStreamHandler(stdout);
    try {/*w  ww  .ja v  a2s  . c  o  m*/

        CommandLine cmdLine = new CommandLine(
                Config.getSDKPath() + getSlash() + "platform-tools" + getSlash() + "adb");
        cmdLine.addArgument("devices", false);
        DefaultExecutor executor = new DefaultExecutor();
        executor.setStreamHandler(psh);
        executor.execute(cmdLine);
        String output = stdout.toString();
        /*
         * Shell command response will be 27 characters in length if there
         * are no devices currently attached.
         * 
         * Output is: List of devices attached \n\n
         */
        if (output.length() > 27) {
            List<String> devices = new ArrayList<String>(Arrays.asList(output.split("\n")));
            /*
             * This removes the first line.. We don't care about the first
             * one [0] because that's just the first line (List of devices
             * attached \n)
             */
            devices.remove(0);
            for (int count = 0; count < devices.size(); count++) {
                devices.set(count, devices.get(count).replaceAll("\t.*", "").trim());
            }
            return devices.toArray(new String[devices.size()]);
            /*
             * If there were no devices, return an empty list
             */
        } else {
            return new String[0];
        }
    }

    catch (CorruptConfigException e) {
        return new String[0];
    } catch (IOException e) {
        return new String[0];
    }
}

---

From source file:org.owasp.goatdroid.gui.emulator.EmulatorWorker.java

static public String startEmulator(String deviceName)
        throws FileNotFoundException, IOException, CorruptConfigException {
    HashMap<String, String> settings = Config.readConfig();
    String emulator = settings.get("sdk_path") + getSlash() + "tools" + getSlash();
    if (getOperatingSystem().startsWith("windows"))
        emulator += "emulator-arm.exe";
    else/*from w w  w .ja v  a  2 s  . c  o m*/
        emulator += "emulator";
    CommandLine cmdLine = new CommandLine(emulator);
    // If the Windows path has spaces, we don't even want to deal with it
    // will ignore parameters, known issue
    if (getOperatingSystem().startsWith("windows")) {
        cmdLine.addArgument("@" + deviceName.toLowerCase().replace(".avd", ""));
        cmdLine.addArgument("-scale");
        if (Config.getAndroidEmulatorScreenSize() == 0)
            cmdLine.addArgument("1");
        else if (Config.getAndroidEmulatorScreenSize() > 3)
            cmdLine.addArgument("3");
        else
            cmdLine.addArgument(Integer.toString(Config.getAndroidEmulatorScreenSize()));
    } else {
        cmdLine.addArgument("-avd", false);
        cmdLine.addArgument(deviceName.toLowerCase().replace(".avd", ""), false);
        cmdLine.addArgument("-scale");
        if (Config.getAndroidEmulatorScreenSize() < 1)
            cmdLine.addArgument("1");
        else if (Config.getAndroidEmulatorScreenSize() > 3)
            cmdLine.addArgument("3");
        else
            cmdLine.addArgument(Integer.toString(Config.getAndroidEmulatorScreenSize()));
    }
    if (!(settings.get("proxy_host").equals("") || settings.get("proxy_port").equals(""))) {
        cmdLine.addArgument("-http-proxy");
        cmdLine.addArgument("http://" + settings.get("proxy_host") + ":" + settings.get("proxy_port"));
    }
    ByteArrayOutputStream stdout = new ByteArrayOutputStream();
    PumpStreamHandler psh = new PumpStreamHandler(stdout);
    DefaultExecutor executor = new DefaultExecutor();
    try {
        executor.setStreamHandler(psh);
        executor.execute(cmdLine);
        return Constants.SUCCESS;
    } catch (ExecuteException e) {
        return stdout.toString();
    } catch (IOException e) {
        return Constants.INVALID_SDK_PATH;
    }
}

---

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