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:Main.java

/**
 * Run a command and return its output./*from   w w  w .j ava 2  s . c  om*/
 */
public static String systemOut(String command) throws Exception {
    int c;
    String cmd[] = new String[3];
    cmd[0] = System.getProperty("SHELL", "/bin/sh");
    cmd[1] = "-c";
    cmd[2] = command;
    Process p = Runtime.getRuntime().exec(cmd);

    BufferedReader r = new BufferedReader(new InputStreamReader(p.getInputStream()));
    StringBuilder s = new StringBuilder();
    while ((c = r.read()) != -1)
        s.append((char) c);
    p.waitFor();

    return s.toString();
}

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From source file:abs.backend.erlang.ErlangBackend.java

public static void compile(Model m, File destDir, boolean verbose)
        throws IOException, InterruptedException, InternalBackendException {
    if (verbose)//from   www .  ja  v a 2 s.c  o m
        System.out.println("Generating Erlang code...");

    // check erlang version number
    Process versionCheck = Runtime.getRuntime().exec(new String[] { "erl", "-eval",
            "io:fwrite(\"~s\n\", [erlang:system_info(otp_release)]), halt().", "-noshell" });
    versionCheck.waitFor();
    BufferedReader ir = new BufferedReader(new InputStreamReader(versionCheck.getInputStream()));
    int version = Integer.parseInt(ir.readLine());
    if (version < minVersion) {
        String message = "ABS requires at least erlang version " + Integer.toString(minVersion)
                + ", installed version is " + Integer.toString(version);
        throw new InternalBackendException(message);
    }
    ErlApp erlApp = new ErlApp(destDir);
    m.generateErlangCode(erlApp);
    erlApp.close();
    String[] rebarProgram = new String[] { "escript", "../bin/rebar", "compile" };
    Process p = Runtime.getRuntime().exec(rebarProgram, null, new File(destDir, "absmodel"));
    if (verbose)
        IOUtils.copy(p.getInputStream(), System.out);
    p.waitFor();
    if (p.exitValue() != 0) {
        String message = "Compilation of generated erlang code failed with exit value " + p.exitValue();
        if (!verbose)
            message = message + "\n  (use -v for detailed compiler output)";
        throw new InternalBackendException(message);
        // TODO: consider removing the generated code here.  For now,
        // let's leave it in place for diagnosis.
    } else {
        if (verbose) {
            System.out.println();
            System.out.println("Finished.  \"gen/erl/run\" to start the model.");
            System.out.println("          (\"gen/erl/run --help\" for more options)");
        }
    }
}

---

From source file:Main.java

public static int exec(String command) {
    Process proc = null;
    BufferedReader error = null;//from   ww w  .  j av  a  2s  .com
    try {
        proc = Runtime.getRuntime().exec(command);
        error = toReader(proc.getErrorStream());
        int retVal = proc.waitFor();
        if (retVal != 0) {
            String line;
            while ((line = error.readLine()) != null) {
                Log.d(TAG, "exec error:" + line);
            }
        }
        return retVal;
    } catch (Exception e) {
        Log.d(TAG, e.getMessage());
        if (proc != null) {
            proc.destroy();
        }
    }
    return -1;
}

---

From source file:Main.java

public static int execRootCmdSilent(String cmd) {

    int result = -1;
    DataOutputStream dos = null;//from  w w w  . j a  v a  2 s .c o m

    try {
        Process p = Runtime.getRuntime().exec("su");
        dos = new DataOutputStream(p.getOutputStream());

        dos.writeBytes(cmd + "\n");
        dos.flush();
        dos.writeBytes("exit\n");
        dos.flush();
        p.waitFor();
        result = p.exitValue();
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        if (dos != null) {
            try {
                dos.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
    return result;
}

---

From source file:com.surfs.storage.common.util.CmdUtils.java

public static CmdResponse executeCommand(String cmd) {
    BufferedReader bufRead = null;
    try {//from   w  w w  .j  a  v a2s .  c om
        //bufRead = executeCmdForReader(cmd);
        Process pro = Runtime.getRuntime().exec(cmd);
        bufRead = new BufferedReader(new InputStreamReader(pro.getInputStream(), "UTF-8"));
        // 0-success,others-failure
        int status = pro.waitFor();
        String response = bufRead.readLine();
        LogFactory.info("cmd:" + cmd);
        LogFactory.info("status:" + status);
        LogFactory.info("response:" + response);
        return new CmdResponse(status, response);
    } catch (Exception e) {
        return new CmdResponse(500, e.getMessage());
    } finally {
        if (bufRead != null)
            try {
                bufRead.close();
            } catch (Exception e) {
                return new CmdResponse(500, e.getMessage());
            }
    }
}

---

From source file:io.github.retz.executor.FileManager.java

private static void fetchHDFSFile(String file, String dest) throws IOException {
    LOG.debug("Downloading {} to {} as HDFS file", file, dest);
    // TODO: make 'hadoop' command arbitrarily specifiable, but given that mesos-agent (slave) can fetch hdfs:// files, it should be also available, too
    String[] hadoopCmd = { "hadoop", "fs", "-copyToLocal", file, dest };
    LOG.debug("Command: {}", String.join(" ", hadoopCmd));
    ProcessBuilder pb = new ProcessBuilder();
    pb.command(hadoopCmd).inheritIO();/*ww  w. j a v a  2s. co m*/

    Process p = pb.start();
    while (true) {
        try {
            int result = p.waitFor();
            if (result != 0) {
                LOG.error("Downloading {} failed: {}", file, result);
            } else {
                LOG.info("Download finished: {}", file);
            }
            return;
        } catch (InterruptedException e) {
            LOG.error("Download process interrupted: {}", e.getMessage()); // TODO: debug?
        }
    }
}

---

From source file:ml.shifu.shifu.executor.ProcessManager.java

public static int runShellProcess(String currentDir, String[] args) throws IOException {
    ProcessBuilder processBuilder = new ProcessBuilder(args);
    processBuilder.directory(new File(currentDir));
    processBuilder.redirectErrorStream(true);
    Process process = processBuilder.start();

    LogThread logThread = new LogThread(process, process.getInputStream(), currentDir);
    logThread.start();// www  .  j ava  2s.c o m

    try {
        process.waitFor();
    } catch (InterruptedException e) {
        process.destroy();
    } finally {
        logThread.setToQuit(true);
    }

    LOG.info("Under {} directory, finish run `{}`", currentDir, args);
    return process.exitValue();
}

---

From source file:br.pucminas.ri.jsearch.rest.controller.ApiController.java

private static Object evalTests(Request req, Response res) {
    try {//from   w w w . java2  s  .  c  o m
        Searcher.performTests("result/queries.txt");

        String[] command = { "./tests.sh" };
        Process p = Runtime.getRuntime().exec(command);
        p.waitFor();

        Path path = Paths.get("result/output.txt");

        res.header("Content-Disposition", "attachment; filename=output.txt");
        res.type("application/force-download");

        byte[] data = null;
        try {
            data = Files.readAllBytes(path);
        } catch (Exception e1) {

            e1.printStackTrace();
        }

        res.raw().getOutputStream().write(data);
        try {
            res.raw().getOutputStream().write(data);
            res.raw().getOutputStream().flush();
            res.raw().getOutputStream().close();
        } catch (Exception e) {
            e.printStackTrace();
        }

        return res.raw();
    } catch (IOException | InterruptedException e) {
        e.printStackTrace();
        return "Error on execute tests.";
    }
}

---

From source file:Main.java

/**
 * Run a command and return its output./* ww w.java 2s .c om*/
 */
public static String systemOut(String command) throws Exception {
    int c;
    String[] cmd = new String[3];
    cmd[0] = System.getProperty("SHELL", "/bin/sh");
    cmd[1] = "-c";
    cmd[2] = command;
    Process p = Runtime.getRuntime().exec(cmd);

    BufferedReader r = new BufferedReader(new InputStreamReader(p.getInputStream()));
    StringBuilder s = new StringBuilder();
    while ((c = r.read()) != -1) {
        s.append((char) c);
    }
    p.waitFor();

    return s.toString();
}

---

From source file:Main.java

public static void runAsRoot(String[] commands) throws IOException, InterruptedException {
    Process p = Runtime.getRuntime().exec("su");
    DataOutputStream os = new DataOutputStream(p.getOutputStream());
    for (String cmd : commands) {
        os.writeBytes(cmd + "\n");
    }/*from   ww w. ja  v  a 2 s . co  m*/
    os.writeBytes("exit\n");
    os.flush();
    os.close();
    p.waitFor();
}

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