Example usage for java.lang Runtime exec

List of usage examples for java.lang Runtime exec

  1. HOME
  2. Java
  3. java
  4. java.lang.*
  5. Runtime
  6. exec

Introduction

In this page you can find the example usage for java.lang Runtime exec.

Prototype

public Process exec(String cmdarray[]) throws IOException

Source Link

Document

Executes the specified command and arguments in a separate process.

Usage

From source file:io.appium.java_client.service.local.AppiumServiceBuilder.java

private static void validateNodeJSVersion() {
    Runtime rt = Runtime.getRuntime();
    String result = null;/* w w  w .j  a v a2  s. c  om*/
    Process p = null;
    try {
        p = rt.exec(NODE_COMMAND_PREFIX + " node -v");
        p.waitFor();
        result = getProcessOutput(p.getInputStream());
    } catch (Exception e) {
        throw new InvalidNodeJSInstance("Node.js is not installed", e);
    } finally {
        if (p != null)
            p.destroy();
    }

    String versionNum = result.replace("v", "");
    String[] tokens = versionNum.split("\\.");
    if (Integer.parseInt(tokens[0]) < REQUIRED_MAJOR_NODE_JS
            || Integer.parseInt(tokens[1]) < REQUIRED_MINOR_NODE_JS)
        throw new InvalidNodeJSInstance("Current node.js version " + versionNum + "is lower than "
                + "required (" + REQUIRED_MAJOR_NODE_JS + "." + REQUIRED_MINOR_NODE_JS + " or greater)");
}

From source file:ca.uqac.dim.net.verify.NetworkChecker.java

/**
 * Runs the NuSMV program as a spawned command-line process, and passes the
 * file to process through that process' standard input
 * @param file_contents A String containing the NuSMV model to process
 *//*w  w  w . jav a 2 s  .co m*/
private static RuntimeInfos runNuSMV(String file_contents) throws IOException, InterruptedException {
    StringBuilder sb = new StringBuilder();
    Runtime rt = Runtime.getRuntime();
    long time_start = 0, time_end = 0;
    // Start NuSMV, and feed the model through its standard input
    time_start = System.currentTimeMillis();
    Process p = rt.exec(NUSMV_EXEC);
    OutputStream o = p.getOutputStream();
    InputStream i = p.getInputStream();
    InputStream e = p.getErrorStream();
    Writer w = new PrintWriter(o);
    w.write(file_contents);
    w.close(); // Close stdin so NuSMV can start processing it
    // Wait for NuSMV to be done, then collect its standard output
    int exitVal = p.waitFor();
    if (exitVal != 0)
        throw new IOException("NuSMV's return value indicates an error in processing its input");
    BufferedReader br = new BufferedReader(new InputStreamReader(i));
    String line;
    while ((line = br.readLine()) != null) {
        sb.append(line).append("\n");
    }
    time_end = System.currentTimeMillis();
    i.close(); // Close stdout
    e.close(); // Close stderr
    return new RuntimeInfos(sb.toString(), time_end - time_start);
}

From source file:io.appium.java_client.service.local.AppiumServiceBuilder.java

private static File findNodeInCurrentFileSystem() {
    Runtime rt = Runtime.getRuntime();
    String instancePath;//from   ww  w. j  ava  2 s . com
    Process p = null;
    try {
        p = rt.exec(returnCommandThatSearchesForDefaultNode());
        p.waitFor();
        instancePath = getProcessOutput(p.getInputStream());
    } catch (Exception e) {
        throw new RuntimeException(e);
    } finally {
        if (p != null)
            p.destroy();
    }

    File result;
    if (StringUtils.isBlank(instancePath)
            || !(result = new File(instancePath + File.separator + NODE_MODULES_FOLDER + APPIUM_NODE_MASK))
                    .exists())
        throw new InvalidServerInstanceException(
                "There is no installed nodes! Please install "
                        + " node via NPM (https://www.npmjs.com/package/appium#using-node-js) or download and "
                        + "install Appium app (http://appium.io/downloads.html)",
                new IOException("The installed appium node package has not been found."));

    return result;
}

From source file:com.supermap.desktop.icloud.CloudLicenseDialog.java

private static void openUrl(String url) {
    Runtime runtime = Runtime.getRuntime();
    try {/*from w w  w.  j  a  v a  2 s  . co  m*/
        if (SystemPropertyUtilities.isWindows()) {
            runtime.exec("rundll32 url.dll,FileProtocolHandler " + url);
        } else {
            String[] browsers = { "epiphany", "firefox", "mozilla", "konqueror", "netscape", "opera", "links",
                    "lynx" };

            StringBuffer cmd = new StringBuffer();
            for (int i = 0; i < browsers.length; i++)
                cmd.append((i == 0 ? "" : " || ") + browsers[i] + " \"" + url + "\" ");
            runtime.exec(new String[] { "sh", "-c", cmd.toString() });
        }
    } catch (Exception e) {
        System.out.println(e);
    }
}

From source file:com.github.DroidPHP.ServerUtils.java

/**
 * //from   w ww.j  av a2 s  .  co  m
 * @param mCommand
 *            hold the command which will be executed by invoking {@link
 *            Runtime.getRuntime.exec(...)}
 * @return boolean
 * @throws IOException
 *             if it unable to execute the command
 */

final public static boolean execCommand(String mCommand) {

    /*
     * Create a new Instance of Runtime
     */
    Runtime r = Runtime.getRuntime();
    try {
        /**
         * Executes the command
         */
        r.exec(mCommand);

    } catch (java.io.IOException e) {

        Log.e(TAG, "execCommand", e);

        r = null;

        return false;
    }

    return true;

}

From source file:org.eclipse.kura.deployment.rp.sh.impl.ShellScriptResourceProcessorImpl.java

private static void executeScript(File file, String action) throws Exception {
    String path = file.getCanonicalPath();
    String[] cmdarray = { "/bin/bash", path, action };
    Runtime rt = Runtime.getRuntime();
    Process proc = rt.exec(cmdarray);

    ProcessMonitorThread pmt = new ProcessMonitorThread(proc, null, 0);
    pmt.start();/*  w  w w. j a va2s .c o m*/
    pmt.join();
    s_logger.error("Script stdout: {}", pmt.getStdout());
    s_logger.error("Script stderr: {}", pmt.getStderr());
    Exception e = pmt.getException();
    if (e != null) {
        s_logger.error("Exception executing install action for script: '{}'", e);
        throw e;
    } else {
        if (!pmt.isTimedOut()) {
            Integer exitValue = pmt.getExitValue();
            if (exitValue != 0) {
                s_logger.error("Install action for script: '{}' failed with exit value: {}", path, exitValue);
                throw new Exception(
                        "Install action for script: " + path + " failed with exit value: " + exitValue);
            }
        }
    }
}

From source file:org.glite.slcs.util.Utils.java

/**
 * Sets permissions on a given file. The permissions are set using the
 * <i>chmod</i> command and will only work on Unix machines. Chmod command
 * must be in the path.//  w  w w . j a  v  a  2 s  .co m
 * 
 * @param file
 *            the file to set the permissions of.
 * @param mode
 *            the Unix style permissions.
 * @return true, if change was successful, otherwise false. It can return
 *         false, in many instances, e.g. when file does not exits, when
 *         chmod is not found, or other error occurs.
 */
public static boolean setFilePermissions(File file, int mode) {
    String filename = file.getPath();
    if (!file.exists()) {
        try {
            file.createNewFile();
        } catch (IOException e) {
            // ignored e.printStackTrace();
            LOG.warn("Failed to create new empty file: " + filename, e);
        }
    }
    // only on Unix
    if (!SystemUtils.IS_OS_WINDOWS) {
        Runtime runtime = Runtime.getRuntime();
        String[] cmd = new String[] { "chmod", String.valueOf(mode), filename };
        try {
            Process process = runtime.exec(cmd);
            return (process.waitFor() == 0) ? true : false;
        } catch (Exception e) {
            LOG.warn("Command 'chmod " + mode + " " + filename + "' failed", e);
            return false;
        }
    }
    // on Windows always return true
    else {
        LOG.info("Windows: Not possible to set file permissions " + mode + " on " + filename);
        return true;
    }

}

From source file:iics.Connection.java

static void openweb(String url) {
    String os = System.getProperty("os.name").toLowerCase();
    Runtime rt = Runtime.getRuntime();
    changefile();/*from   w ww .  j  a va 2  s . c om*/
    try {

        if (os.indexOf("win") >= 0) {

            // this doesn't support showing urls in the form of "page.html#nameLink" 
            rt.exec("rundll32 url.dll,FileProtocolHandler " + url);

        } else if (os.indexOf("mac") >= 0) {

            rt.exec("open " + url);

        } else if (os.indexOf("nix") >= 0 || os.indexOf("nux") >= 0) {

            // Do a best guess on unix until we get a platform independent way
            // Build a list of browsers to try, in this order.
            String[] browsers = { "epiphany", "firefox", "mozilla", "konqueror", "netscape", "opera", "links",
                    "lynx" };

            // Build a command string which looks like "browser1 "url" || browser2 "url" ||..."
            StringBuffer cmd = new StringBuffer();
            for (int i = 0; i < browsers.length; i++) {
                cmd.append(i == 0 ? "" : " || ").append(browsers[i]).append(" \"").append(url).append("\" ");
            }

            rt.exec(new String[] { "sh", "-c", cmd.toString() });

        } else {
            return;
        }
    } catch (Exception e) {
        return;
    }
    changefile();
}

From source file:com.liferay.sync.engine.util.SyncSystemTestUtil.java

protected static Process executeCommand(String action) throws Exception {
    Runtime runtime = Runtime.getRuntime();

    String command = null;/*from   w  w  w  .  j av a  2 s  .  c o  m*/

    String dirName = System.getProperty("app.server.tomcat.dir");

    if (OSDetector.isWindows()) {
        command = dirName + "/bin/catalina.bat " + action;
    } else {
        command = dirName + "/bin/catalina.sh " + action;
    }

    return runtime.exec(command);
}

From source file:edu.stanford.junction.director.JAVADirector.java

/**
 * Method to Open the Browser with Given URL
 * @param url/*  w w  w. j av  a2s . co  m*/
 */
public static Process openUrl(String url) {
    String os = System.getProperty("os.name");
    Runtime runtime = Runtime.getRuntime();
    try {
        // Block for Windows Platform
        if (os.startsWith("Windows")) {
            String cmd = "rundll32 url.dll,FileProtocolHandler " + url;
            Process p = runtime.exec(cmd);
            return p;
        }
        //Block for Mac OS
        else if (os.startsWith("Mac OS")) {
            Class fileMgr = Class.forName("com.apple.eio.FileManager");
            Method openURL = fileMgr.getDeclaredMethod("openURL", new Class[] { String.class });
            openURL.invoke(null, new Object[] { url });
            return null; // TODO find a better way
        }
        //Block for UNIX Platform 
        else {
            String[] browsers = { "firefox", "chrome", "opera", "konqueror", "epiphany", "mozilla",
                    "netscape" };
            String browser = null;
            for (int count = 0; count < browsers.length && browser == null; count++)
                if (runtime.exec(new String[] { "which", browsers[count] }).waitFor() == 0)
                    browser = browsers[count];
            if (browser == null)
                throw new Exception("Could not find web browser");
            else
                return runtime.exec(new String[] { browser, url });
        }
    } catch (Exception x) {
        System.err.println("Exception occurd while invoking Browser!");
        x.printStackTrace();
        return null;
    }
}