Example usage for java.lang Process getErrorStream

List of usage examples for java.lang Process getErrorStream

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Introduction

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

Prototype

public abstract InputStream getErrorStream();

Source Link

Document

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

Usage

From source file:Main.java

public static int doShellCommand(String[] cmds, StringBuilder log, boolean runAsRoot, boolean waitFor)
        throws Exception {

    Process proc = null;
    int exitCode = -1;

    if (runAsRoot)
        proc = Runtime.getRuntime().exec("su");
    else// w w w.  ja va2 s  . c  om
        proc = Runtime.getRuntime().exec("sh");

    OutputStreamWriter out = new OutputStreamWriter(proc.getOutputStream());

    for (int i = 0; i < cmds.length; i++) {
        out.write(cmds[i]);
        out.write("\n");
    }

    out.flush();
    out.write("exit\n");
    out.flush();

    if (waitFor) {

        final char buf[] = new char[10];

        // Consume the "stdout"
        InputStreamReader reader = new InputStreamReader(proc.getInputStream());
        int read = 0;
        while ((read = reader.read(buf)) != -1) {
            if (log != null)
                log.append(buf, 0, read);
        }

        // Consume the "stderr"
        reader = new InputStreamReader(proc.getErrorStream());
        read = 0;
        while ((read = reader.read(buf)) != -1) {
            if (log != null)
                log.append(buf, 0, read);
        }

        exitCode = proc.waitFor();

    }

    return exitCode;

}

From source file:com.samczsun.helios.utils.Utils.java

public static String readProcess(Process process) {
    StringBuilder result = new StringBuilder();
    result.append("--- BEGIN PROCESS DUMP ---").append("\n");
    result.append("---- STDOUT ----").append("\n");
    InputStream inputStream = process.getInputStream();
    byte[] inputStreamBytes = new byte[0];
    try {/*from   w w w  .  ja  v a2  s.c o  m*/
        inputStreamBytes = IOUtils.toByteArray(inputStream);
    } catch (IOException e) {
        result.append("An error occured while reading from stdout").append("\n");
        result.append("Caused by: ").append(e.getClass()).append(" ").append(e.getMessage()).append("\n");
    } finally {
        if (inputStreamBytes.length > 0) {
            result.append(new String(inputStreamBytes, StandardCharsets.UTF_8));
        }
    }
    result.append("---- STDERR ----").append("\n");
    inputStream = process.getErrorStream();
    inputStreamBytes = new byte[0];
    try {
        inputStreamBytes = IOUtils.toByteArray(inputStream);
    } catch (IOException e) {
        result.append("An error occured while reading from stderr").append("\n");
        result.append("Caused by: ").append(e.getClass()).append(" ").append(e.getMessage()).append("\n");
    } finally {
        if (inputStreamBytes.length > 0) {
            result.append(new String(inputStreamBytes, StandardCharsets.UTF_8));
        }
    }

    result.append("---- EXIT VALUE ----").append("\n");

    int exitValue = -0xCAFEBABE;
    try {
        exitValue = process.waitFor();
    } catch (InterruptedException e) {
        result.append("An error occured while obtaining the exit value").append("\n");
        result.append("Caused by: ").append(e.getClass()).append(" ").append(e.getMessage()).append("\n");
    } finally {
        if (exitValue != -0xCAFEBABE) {
            result.append("Process finished with exit code ").append(exitValue).append("\n");
        }
    }

    return result.toString();
}

From source file:Main.java

public static int doShellCommand(String[] cmds, StringBuilder log, boolean runAsRoot, boolean waitFor)
        throws Exception {
    Process proc = null;
    int exitCode = -1;

    if (runAsRoot) {
        proc = Runtime.getRuntime().exec("su");
    } else {/*from www .  j  a va 2s.co m*/
        proc = Runtime.getRuntime().exec("sh");
    }

    OutputStreamWriter out = new OutputStreamWriter(proc.getOutputStream());

    for (int i = 0; i < cmds.length; i++) {
        out.write(cmds[i]);
        out.write("\n");
    }

    out.flush();
    out.write("exit\n");
    out.flush();

    if (waitFor) {
        final char buf[] = new char[10];

        // Consume the "stdout"
        InputStreamReader reader = new InputStreamReader(proc.getInputStream());
        int read = 0;
        while ((read = reader.read(buf)) != -1) {
            if (log != null)
                log.append(buf, 0, read);
        }

        // Consume the "stderr"
        reader = new InputStreamReader(proc.getErrorStream());
        read = 0;
        while ((read = reader.read(buf)) != -1) {
            if (log != null)
                log.append(buf, 0, read);
        }

        exitCode = proc.waitFor();
    }

    return exitCode;
}

From source file:hoot.services.command.CommandRunner.java

private static int handleProcessStatic(Process pProcess, String pOrigCmd, Writer pOut, Writer pErr,
        List<CharPump> stdOutErrList, MutableBoolean interrupt) throws IOException, InterruptedException {

    CharPump outpump = new CharPump(new BufferedReader(new InputStreamReader(pProcess.getInputStream())), pOut,
            pOrigCmd, interrupt);// w  w  w . ja v  a 2s.  co  m
    stdOutErrList.add(outpump);
    CharPump errpump = new CharPump(new BufferedReader(new InputStreamReader(pProcess.getErrorStream())), pErr,
            pOrigCmd, interrupt);
    stdOutErrList.add(errpump);
    outpump.start();
    errpump.start();
    outpump.join();
    errpump.join();

    if (_log.isInfoEnabled())
        _log.info("Waiting for '" + pOrigCmd + "' to complete.");
    int status = pProcess.waitFor();

    return status;
}

From source file:net.pickapack.io.cmd.CommandLineHelper.java

/**
 *
 * @param cmd//from ww  w . j a  v a2s.co  m
 * @param waitFor
 * @return
 */
public static int invokeNativeCommand(String[] cmd, boolean waitFor) {
    try {
        Runtime r = Runtime.getRuntime();
        final Process ps = r.exec(cmd);
        //            ProcessBuilder pb = new ProcessBuilder(cmd);
        //            Process ps = pb.start();

        new Thread() {
            {
                setDaemon(true);
            }

            @Override
            public void run() {
                try {
                    IOUtils.copy(ps.getInputStream(), System.out);
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }.start();

        new Thread() {
            {
                setDaemon(true);
            }

            @Override
            public void run() {
                try {
                    IOUtils.copy(ps.getErrorStream(), System.out);
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }.start();

        if (waitFor) {
            int exitValue = ps.waitFor();
            if (exitValue != 0) {
                System.out.println("WARN: Process exits with non-zero code: " + exitValue);
            }

            ps.destroy();

            return exitValue;
        }

        return 0;
    } catch (Exception e) {
        e.printStackTrace();
        return -1;
    }
}

From source file:gov.nist.appvet.tool.sigverifier.Service.java

private static boolean execute(String command, StringBuffer output) {
    List<String> commandArgs = Arrays.asList(command.split("\\s+"));
    ProcessBuilder pb = new ProcessBuilder(commandArgs);
    Process process = null;
    IOThreadHandler outputHandler = null;
    IOThreadHandler errorHandler = null;
    int exitValue = -1;
    try {/*  w  ww .  jav a2s  .c om*/
        if (command == null || command.isEmpty()) {
            log.error("Command is null or empty");
            return false;
        }
        log.debug("Executing " + command);
        process = pb.start();
        outputHandler = new IOThreadHandler(process.getInputStream());
        outputHandler.start();
        errorHandler = new IOThreadHandler(process.getErrorStream());
        errorHandler.start();
        if (process.waitFor(Properties.commandTimeout, TimeUnit.MILLISECONDS)) {
            // Process has waited and exited within the timeout
            exitValue = process.exitValue();
            if (exitValue == 0) {
                log.debug("Command terminated normally: \n" + outputHandler.getOutput() + "\nErrors: "
                        + errorHandler.getOutput());
                StringBuffer resultOut = outputHandler.getOutput();
                output.append(resultOut);
                return true;
            } else {
                log.error("Command terminated abnormally: \n" + outputHandler.getOutput() + "\nErrors: "
                        + errorHandler.getOutput());
                StringBuffer resultError = errorHandler.getOutput();
                output.append(resultError);
                return false;
            }
        } else {
            // Process exceed timeout or was interrupted
            log.error("Command timed-out or was interrupted: \n" + outputHandler.getOutput() + "\nErrors: "
                    + errorHandler.getOutput());
            StringBuffer resultOutput = outputHandler.getOutput();
            StringBuffer resultError = errorHandler.getOutput();
            if (resultOutput != null) {
                output.append(resultOutput);
                return false;
            } else if (resultError != null) {
                output.append(resultError);
            } else {
                output.append(Properties.toolName + " timed-out");
            }
            return false;
        }
    } catch (IOException e) {
        e.printStackTrace();
        return false;
    } catch (InterruptedException e) {
        e.printStackTrace();
        return false;
    } finally {
        if (outputHandler.isAlive()) {
            try {
                outputHandler.inputStream.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        if (errorHandler.isAlive()) {
            try {
                errorHandler.inputStream.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        if (process.isAlive()) {
            process.destroy();
        }
    }
}

From source file:net.modsec.ms.connector.ConnRequestHandler.java

/**
 * Executes the shell scripts for starting, restarting and stopping modsecurity. 
 * @param cmd - path of the shell script.
 * @param jsonResp  - response to WebSiren(webapp) request.
 * @return jsonresponse - response to WebSiren(webapp) request. 
 *//*from   w  ww. ja  va 2 s. c  o m*/
@SuppressWarnings("unchecked")
public static JSONObject executeShScript(String cmd, JSONObject jsonResp) {

    log.info("starting shell script execution ... :" + cmd);
    try {

        Process process = Runtime.getRuntime().exec(cmd);
        String outStr = "", s = "";

        BufferedReader br = new BufferedReader(new InputStreamReader(process.getInputStream()));
        while ((s = br.readLine()) != null) {
            outStr += s;
        }

        log.info("Output String : " + outStr);

        String errOutput = "";
        BufferedReader br2 = new BufferedReader(new InputStreamReader(process.getErrorStream()));

        while (br2.ready() && (s = br2.readLine()) != null) {
            errOutput += s;
        }
        log.info("Error String : " + errOutput);

        if (errOutput.contains("Syntax error")) {

            jsonResp.put("status", "1");
            jsonResp.put("message", "Failed to start modsecurity");

        } else {

            jsonResp.put("status", "0");
            jsonResp.put("message", outStr);

        }

    } catch (IOException e) {

        jsonResp.put("status", "1");
        jsonResp.put("message", "Error: internal service is down");
        log.info("Error Message: " + e.getMessage());
        //e.printStackTrace();

    }

    return jsonResp;
}

From source file:com.searchbox.framework.web.SystemController.java

/**
 * Utility function to execute a function
 *///from  w w  w . j a v  a 2 s  .  c o  m
private static String execute(String cmd) {
    DataInputStream in = null;
    Process process = null;

    try {
        process = Runtime.getRuntime().exec(cmd);
        in = new DataInputStream(process.getInputStream());
        // use default charset from locale here, because the command invoked
        // also uses the default locale:
        return IOUtils.toString(new InputStreamReader(in, Charset.defaultCharset()));
    } catch (Exception ex) {
        // ignore - log.warn("Error executing command", ex);
        return "(error executing: " + cmd + ")";
    } finally {
        if (process != null) {
            IOUtils.closeQuietly(process.getOutputStream());
            IOUtils.closeQuietly(process.getInputStream());
            IOUtils.closeQuietly(process.getErrorStream());
        }
    }
}

From source file:io.siddhi.doc.gen.core.utils.DocumentationUtils.java

/**
 * Executing a command//from  ww  w . j  a va2s  . co m
 *
 * @param command The command to be executed
 * @param logger  The maven plugin logger
 * @return The output lines from executing the command
 * @throws Throwable if any error occurs during the execution of the command
 */
private static List<String> getCommandOutput(String[] command, Log logger) throws Throwable {
    logger.info("Executing: " + String.join(" ", command));
    Process process = Runtime.getRuntime().exec(command);
    List<String> executionOutputLines = new ArrayList<>();

    // Logging the output of the command execution
    InputStream[] inputStreams = new InputStream[] { process.getInputStream(), process.getErrorStream() };
    BufferedReader bufferedReader = null;
    try {
        for (InputStream inputStream : inputStreams) {
            bufferedReader = new BufferedReader(new InputStreamReader(inputStream, Constants.DEFAULT_CHARSET));
            String commandOutput;
            while (true) {
                commandOutput = bufferedReader.readLine();
                if (commandOutput == null) {
                    break;
                }

                executionOutputLines.add(commandOutput);
            }
        }
        process.waitFor();
    } finally {
        IOUtils.closeQuietly(bufferedReader);
    }

    return executionOutputLines;
}

From source file:Main.java

public static int doShellCommand(String cmd, StringBuilder log, boolean runAsRoot, boolean waitFor)
        throws Exception {

    Process proc = null;
    int exitCode = -1;

    if (runAsRoot)
        proc = Runtime.getRuntime().exec("su");
    else//from   w w w .ja  v a2 s. c om
        proc = Runtime.getRuntime().exec("sh");

    OutputStreamWriter out = new OutputStreamWriter(proc.getOutputStream());

    //   TorService.logMessage("executing shell cmd: " + cmds[i] + "; runAsRoot=" + runAsRoot + ";waitFor=" + waitFor);

    out.write(cmd);
    out.write("\n");

    out.flush();
    out.write("exit\n");
    out.flush();

    if (waitFor) {

        final char buf[] = new char[10];

        // Consume the "stdout"
        InputStreamReader reader = new InputStreamReader(proc.getInputStream());
        int read = 0;
        while ((read = reader.read(buf)) != -1) {
            if (log != null)
                log.append(buf, 0, read);
        }

        // Consume the "stderr"
        reader = new InputStreamReader(proc.getErrorStream());
        read = 0;
        while ((read = reader.read(buf)) != -1) {
            if (log != null)
                log.append(buf, 0, read);
        }

        exitCode = proc.waitFor();

    }

    return exitCode;

}