Example usage for java.lang Process getInputStream

Introduction

In this page you can find the example usage for java.lang Process getInputStream.

Prototype

public abstract InputStream getInputStream();

Source Link

Document

Returns the input stream connected to the normal output of the process.

Usage

From source file:com.guye.baffle.util.OS.java

public static void exec(String[] cmd) throws BaffleException {
    Process ps = null;
    try {//  w w  w.ja v a  2s.  c om
        ps = Runtime.getRuntime().exec(cmd);

        new StreamForwarder(ps.getInputStream(), System.err).start();
        new StreamForwarder(ps.getErrorStream(), System.err).start();
        if (ps.waitFor() != 0) {
            throw new BaffleException("could not exec command: " + Arrays.toString(cmd));
        }
    } catch (IOException ex) {
        throw new BaffleException("could not exec command: " + Arrays.toString(cmd), ex);
    } catch (InterruptedException ex) {
        throw new BaffleException("could not exec command: " + Arrays.toString(cmd), ex);
    }
}

From source file:Configuration.ConfigHelper.java

public static String getUserHome() {
    String home = System.getProperty("user.home");
    if (home == null || home.length() <= 0) {
        try {//  w w  w  .  j  ava  2s. c o m
            Process exec = Runtime.getRuntime().exec(new String[] { "bash", "-c", "echo $HOME" });
            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            IOUtils.copy(exec.getInputStream(), baos);
            exec.getInputStream().close();
            home = baos.toString();
        } catch (Exception e) {
            return null;
        }
    }
    return home;
}

From source file:pieShareAppITs.helper.ITUtil.java

public static void waitForProcessToStartup(Process process) throws Exception {
    InputStream stream = process.getInputStream();
    InputStreamReader in = new InputStreamReader(stream);
    BufferedReader reader = new BufferedReader(in);
    String line = reader.readLine();
    while (!line.equals("!loggedIn")) {
        line = reader.readLine();/*w ww . ja  va2s.com*/
    }
}

From source file:com.ms.commons.test.classloader.util.AntxconfigUtil.java

@SuppressWarnings("unchecked")
private static void autoconf(File tmp, String autoconfigPath, String autoconfigFile, PrintStream out)
        throws Exception {
    Enumeration<URL> urls = AntxconfigUtil.class.getClassLoader().getResources(autoconfigFile);
    for (; urls.hasMoreElements();) {
        URL url = urls.nextElement();
        // copy xml
        File autoconfFile = new File(tmp, autoconfigFile);
        writeUrlToFile(url, autoconfFile);
        // copy vm
        SAXBuilder b = new SAXBuilder();
        Document document = b.build(autoconfFile);
        List<Element> elements = XPath.selectNodes(document, GEN_PATH);
        for (Element element : elements) {
            String path = url.getPath();
            String vm = element.getAttributeValue("template");
            String vmPath = StringUtils.substringBeforeLast(path, "/") + "/" + vm;
            URL vmUrl = new URL(url.getProtocol(), url.getHost(), vmPath);
            File vmFile = new File(tmp, autoconfigPath + "/" + vm);
            writeUrlToFile(vmUrl, vmFile);
        }/*ww  w.j  av  a  2 s  .c o  m*/
        // call antxconfig
        String args = "";
        if (new File(DEFAULT_ANTX_FILE).isFile()) {
            args = " -u " + DEFAULT_ANTX_FILE;
        }

        Process p = Runtime.getRuntime().exec(ANTXCONFIG_CMD + args, null, tmp);
        BufferedInputStream in = new BufferedInputStream(p.getInputStream());
        BufferedReader br = new BufferedReader(new InputStreamReader(in));
        String s;
        while ((s = br.readLine()) != null) {
            out.println(new String(s.getBytes(), ENDODING));
        }
        FileUtils.deleteDirectory(new File(tmp, autoconfigPath));
    }
}

From source file:com.cloudera.sqoop.manager.MySQLTestUtils.java

/** @return the current username. */
public static String getCurrentUser() {
    // First, check the $USER environment variable.
    String envUser = System.getenv("USER");
    if (null != envUser) {
        return envUser;
    }/*  ww  w.  j a va2  s  .co m*/

    // Try `whoami`
    String[] whoamiArgs = new String[1];
    whoamiArgs[0] = "whoami";
    Process p = null;
    BufferedReader r = null;
    try {
        p = Runtime.getRuntime().exec(whoamiArgs);
        InputStream is = p.getInputStream();
        r = new BufferedReader(new InputStreamReader(is));
        return r.readLine();
    } catch (IOException ioe) {
        LOG.error("IOException reading from `whoami`: " + ioe.toString());
        return null;
    } finally {
        // close our stream.
        if (null != r) {
            try {
                r.close();
            } catch (IOException ioe) {
                LOG.warn("IOException closing input stream from `whoami`: " + ioe.toString());
            }
        }

        // wait for whoami to exit.
        while (p != null) {
            try {
                int ret = p.waitFor();
                if (0 != ret) {
                    LOG.error("whoami exited with error status " + ret);
                    // suppress original return value from this method.
                    return null;
                }
            } catch (InterruptedException ie) {
                continue; // loop around.
            }
        }
    }
}

From source file:com.acmutv.ontoqa.tool.runtime.RuntimeManager.java

/**
 * A method that runs a command on the command line of the host and captures the result from the console
 * @param command command/*w  w w.j  a v  a 2  s. c om*/
 * @return output of the executed system command
 */
public static String runCmd(String command) {
    StringBuilder cmdOutput = new StringBuilder();
    String s;

    try {
        Process p = Runtime.getRuntime().exec(command);
        BufferedReader stdInput = new BufferedReader(new InputStreamReader(p.getInputStream()));

        while ((s = stdInput.readLine()) != null) {
            cmdOutput.append(s).append("\n");
        }
    } catch (IOException e) {
        e.printStackTrace();
        System.exit(-1);
    }
    return cmdOutput.toString();
}

From source file:alluxio.cli.AlluxioFrameworkIntegrationTest.java

private static boolean processExists(String processName) throws Exception {
    Process ps = Runtime.getRuntime().exec(new String[] { "ps", "ax" });
    InputStream psOutput = ps.getInputStream();

    Process processGrep = Runtime.getRuntime().exec(new String[] { "grep", processName });
    OutputStream processGrepInput = processGrep.getOutputStream();
    IOUtils.copy(psOutput, processGrepInput);
    InputStream processGrepOutput = processGrep.getInputStream();
    processGrepInput.close();/*from   www  . j a  v  a2s .c o  m*/

    // Filter out the grep process itself.
    Process filterGrep = Runtime.getRuntime().exec(new String[] { "grep", "-v", "grep" });
    OutputStream filterGrepInput = filterGrep.getOutputStream();
    IOUtils.copy(processGrepOutput, filterGrepInput);
    filterGrepInput.close();

    return IOUtils.readLines(filterGrep.getInputStream()).size() >= 1;
}

From source file:es.bsc.demiurge.core.utils.CommandExecutor.java

/**
 * Executes a system command./*from   ww w .  j a  v a  2 s . c  o  m*/
 *
 * @param command the command
 * @return the result of executing the command
 */
public static String executeCommand(String command) throws IOException, InterruptedException {
    StringBuilder result = new StringBuilder();
    Process p;
    BufferedReader reader = null;
    try {
        p = Runtime.getRuntime().exec(command);
        p.waitFor();
        reader = new BufferedReader(new InputStreamReader(p.getInputStream()));
        String line;
        while ((line = reader.readLine()) != null) {
            result.append(line);
            result.append(System.getProperty("line.separator"));
        }
        return result.toString();
    } finally {
        IOUtils.closeQuietly(reader);
    }
}

From source file:jenkins.scm.impl.subversion.SubversionSampleRepoRule.java

private static String uuid(String url) throws Exception {
    Process proc = new ProcessBuilder("svn", "info", "--xml", url).start();
    BufferedReader r = new BufferedReader(new InputStreamReader(proc.getInputStream()));
    Pattern p = Pattern.compile("<uuid>(.+)</uuid>");
    String line;/*  w w w.  j av a 2  s. c  om*/
    while ((line = r.readLine()) != null) {
        Matcher m = p.matcher(line);
        if (m.matches()) {
            return m.group(1);
        }
    }
    throw new IllegalStateException("no output");
}

From source file:com.atlassian.labs.bamboo.git.edu.nyu.cs.javagit.client.cli.ProcessUtilities.java

/**
 * Reads the output from the process and prints it to stdout.
 *
 * @param p//from w w  w. ja  v  a2 s. co  m
 *          The process from which to read the output.
 * @exception IOException
 *              An <code>IOException</code> is thrown if there is trouble reading input from the
 *              sub-process.
 */
public static void getProcessOutput(Process p, IParser parser) throws IOException {
    BufferedReader br = new BufferedReader(new InputStreamReader(p.getInputStream()));
    while (true) {
        try {
            String str = br.readLine();
            if (null == str) {
                break;
            }
            parser.parseLine(str);
            LOG.debug("  " + str);
        } catch (IOException e) {
            /*
             * TODO: add logging of any information already read from the InputStream. -- jhl388
             * 06.14.2008
             */
            IOException toThrow = new IOException(ExceptionMessageMap.getMessage("020101"));
            toThrow.initCause(e);
            throw toThrow;
        }
    }
}