Example usage for java.lang Process waitFor

Introduction

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

Prototype

public abstract int waitFor() throws InterruptedException;

Source Link

Document

Causes the current thread to wait, if necessary, until the process represented by this Process object has terminated.

Usage

From source file:com.flipkart.flux.examples.WorkflowExecutionDemo.java

/**
 * Helper method to execute a shell command
 * @param command shell command to run//from ww  w.j  a v  a2  s . c om
 * @return shell command's output
 */
private static String executeCommand(String command) throws IOException, InterruptedException {

    StringBuilder output = new StringBuilder();

    Process p;

    p = Runtime.getRuntime().exec(command);
    p.waitFor();
    BufferedReader reader = new BufferedReader(new InputStreamReader(p.getInputStream()));

    //prints the output of the process
    String line = "";
    while ((line = reader.readLine()) != null) {
        output.append(line).append("\n");
    }

    BufferedReader stdError = new BufferedReader(new InputStreamReader(p.getErrorStream()));

    //prints the error stream of the process
    String errorLine = "";
    while ((errorLine = stdError.readLine()) != null) {
        System.out.println(errorLine);
    }

    return output.toString();

}

From source file:br.on.daed.services.pdf.DadosMagneticos.java

public static byte[] gerarPDF(String ano, String tipo)
        throws IOException, InterruptedException, UnsupportedOperationException {

    File tmpFolder;/*from w w w . j ava 2  s  .  c o  m*/
    String folderName;

    Double anoDouble = Double.parseDouble(ano);
    List<String> dados = Arrays.asList(TIPO_DADOS_MAGNETICOS);

    byte[] ret = null;

    if (anoDouble >= ANO_MAGNETICO[0] && anoDouble < ANO_MAGNETICO[1] && dados.contains(tipo)) {

        do {

            folderName = "/tmp/dislin" + Double.toString(System.currentTimeMillis() * Math.random());
            tmpFolder = new File(folderName);

        } while (tmpFolder.exists());

        tmpFolder.mkdir();

        ProcessBuilder processBuilder = new ProcessBuilder("/opt/declinacao-magnetica/./gerar", ano, tipo);

        processBuilder.directory(tmpFolder);

        processBuilder.environment().put("LD_LIBRARY_PATH", "/usr/local/dislin");

        Process proc = processBuilder.start();

        proc.waitFor();

        ProcessHelper.outputProcess(proc);

        File arquivoServido = new File(folderName + "/dislin.pdf");

        FileInputStream fis = new FileInputStream(arquivoServido);

        ret = IOUtils.toByteArray(fis);

        processBuilder = new ProcessBuilder("rm", "-r", folderName);

        tmpFolder = new File("/");

        processBuilder.directory(tmpFolder);

        Process delete = processBuilder.start();

        delete.waitFor();

    } else {
        throw new UnsupportedOperationException("Entrada invlida");
    }
    return ret;
}

From source file:Main.java

static int waitForProcess(Process process) {
    if (process == null)
        return -1;
    try {//  w  w w . j  a  v a 2s .c o  m
        while (true) {
            try {
                return process.waitFor();
            } catch (InterruptedException ignored) {
            }
        }
    } finally {
        process.destroy();
    }
}

From source file:com.microsoft.alm.plugin.idea.common.setup.WindowsStartup.java

/**
 * Run script to launch elevated process to create registry keys
 *
 * @param regeditFilePath//from  w  w w. ja va2  s .  c o m
 */
private static void launchElevatedCreation(final String regeditFilePath) {
    try {
        final String[] cmd = { "cmd", "/C", "regedit", "/s", regeditFilePath };
        final ProcessBuilder processBuilder = new ProcessBuilder(cmd);
        final Process process = processBuilder.start();
        process.waitFor();
    } catch (IOException e) {
        logger.warn("Running regedit encountered an IOException: {}", e.getMessage());
    } catch (Exception e) {
        logger.warn("Waiting for the process to execute resulted in an error: " + e.getMessage());
    }
}

From source file:Main.java

/**
 * Run a command with the given data as input.
 *///from ww w  .j  a  va  2s  .co m
public static void systemIn(String command, String data) throws Exception {
    String cmd[] = new String[3];
    cmd[0] = System.getProperty("SHELL", "/bin/sh");
    cmd[1] = "-c";
    cmd[2] = command;
    Process p = Runtime.getRuntime().exec(cmd);
    PrintWriter w = new PrintWriter(p.getOutputStream());
    w.print(data);
    w.flush();
    w.close();
    p.waitFor();
}

From source file:Main.java

public final static int waitForQuietly(Process p) {
    int exitCode = Integer.MAX_VALUE;
    if (p != null) {
        waitFor: do {
            try {
                exitCode = p.waitFor();
            } catch (InterruptedException e) {
                continue waitFor;
            }//w ww. j ava2s  .c o m
        } while (false);
    }
    return exitCode;
}

From source file:Main.java

/**
 * Run a command with the given data as input.
 */// w  w w  .  j  a  va2s.  co  m
public static void systemIn(String command, String data) throws Exception {
    String[] cmd = new String[3];
    cmd[0] = System.getProperty("SHELL", "/bin/sh");
    cmd[1] = "-c";
    cmd[2] = command;
    Process p = Runtime.getRuntime().exec(cmd);
    PrintWriter w = new PrintWriter(p.getOutputStream());
    w.print(data);
    w.flush();
    w.close();
    p.waitFor();
}

From source file:com.ms.commons.utilities.CoreUtilities.java

/**
 * ???//  w  ww .jav a  2s .co m
 * 
 * @return
 */
public static String getHostName() {
    if (hostName != null) {
        return hostName;
    } else {
        try {
            String cmd = isWindowsOS() ? "hostname" : "/bin/hostname";
            Process process = Runtime.getRuntime().exec(cmd);
            process.waitFor();
            InputStream in = process.getInputStream();
            InputStreamReader inr = new InputStreamReader(in);
            BufferedReader br = new BufferedReader(inr);
            String wg = br.readLine();
            if (wg != null) {
                hostName = wg.trim();
            } else {
                hostName = "unknown hostname";
            }
        } catch (Exception e) {
            logger.error("Exception", e);
            hostName = "unknown hostname";
        }
    }
    return hostName;
}

From source file:com.ms.commons.utilities.CoreUtilities.java

/**
 * ?Linux?IP/*from ww  w  .  j  a v  a  2 s.  c o m*/
 * 
 * @return
 * @throws IOException
 * @throws InterruptedException
 */
private static String getIfconig() throws IOException, InterruptedException {
    String cmd = "/sbin/ifconfig";
    Process process = Runtime.getRuntime().exec(cmd);
    process.waitFor();
    InputStream in = process.getInputStream();
    InputStreamReader inr = new InputStreamReader(in);
    BufferedReader br = new BufferedReader(inr);
    String wg = "";
    while (true) {
        String line = br.readLine();
        if (line == null) {
            break;
        }
        if (line.indexOf("inet addr") != -1 || line.indexOf("inet ?") != -1) {
            wg = line.substring(line.indexOf(":") + 1, line.length());
            wg = wg.trim();
            int index = wg.indexOf("Bcast");
            if (index == -1) {
                index = wg.indexOf("");
            }
            if (index != -1) {
                wg = wg.substring(0, index);
                wg = wg.trim();
                break;
            } else {
                if (wg.length() > 14) {
                    wg = wg.substring(0, 14);
                }
            }
        }
    }
    return wg.trim();
}

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

/**
 * Executes a system command.//from   ww  w.  j  a  v  a2  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);
    }
}