Example usage for java.lang Process getErrorStream

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:com.eucalyptus.blockstorage.TGTWrapper.java

/**
 * executeTGTs the specified tgt command in a separate process. 
 * A {@link DirectStorageInfo#timeoutInMillis timeout} is enforced on 
 * the process using {@link java.util.concurrent.ExecutorService ExecutorService} 
 * framework. If the process does not complete with in the timeout, it is cancelled.
 * /*from   w ww.  java 2 s . c o  m*/
 * @param command
 * @param timeout
 * @return CommandOutput
 * @throws EucalyptusCloudException
 */
private static CommandOutput execute(@Nonnull String[] command, @Nonnull Long timeout)
        throws EucalyptusCloudException, CallTimeoutException {
    try {
        Integer returnValue = -999999;
        Runtime runtime = Runtime.getRuntime();
        Process process = runtime.exec(command);
        StreamConsumer error = new StreamConsumer(process.getErrorStream());
        StreamConsumer output = new StreamConsumer(process.getInputStream());
        error.start();
        output.start();
        Callable<Integer> processMonitor = new ProcessMonitor(process);
        Future<Integer> processController = getExecutorWithInit().submit(processMonitor);
        try {
            returnValue = processController.get(timeout, TimeUnit.MILLISECONDS);
        } catch (TimeoutException tex) {
            String commandStr = buildCommand(command);
            LOG.error(commandStr + " timed out. Cancelling the process, logging a fault and exceptioning out");
            processController.cancel(true);
            Faults.forComponent(Storage.class).havingId(TGT_HOSED).withVar("component", "Storage Controller")
                    .withVar("timeout", Long.toString(timeout)).log();
            throw new CallTimeoutException("No response from the command " + commandStr
                    + ". Process timed out after waiting for " + timeout + " milliseconds");
        }
        output.join();
        error.join();
        LOG.debug("TGTWrapper executed: " + JOINER.join(command) + "\n return=" + returnValue + "\n stdout="
                + output.getReturnValue() + "\n stderr=" + error.getReturnValue());
        return new CommandOutput(returnValue, output.getReturnValue(), error.getReturnValue());
    } catch (CallTimeoutException e) {
        throw e;
    } catch (Exception ex) {
        throw new EucalyptusCloudException(ex);
    }
}

---

From source file:com.github.maven_nar.NarUtil.java

public static int runCommand(final String cmd, final String[] args, final File workingDirectory,
        final String[] env, final TextStream out, final TextStream err, final TextStream dbg, final Log log,
        final boolean expectFailure) throws MojoExecutionException, MojoFailureException {
    final Commandline cmdLine = new Commandline();

    try {/*from w ww .  ja v a2s  .c om*/
        dbg.println("RunCommand: " + cmd);
        cmdLine.setExecutable(cmd);
        if (args != null) {
            for (final String arg : args) {
                dbg.println("  '" + arg + "'");
            }
            cmdLine.addArguments(args);
        }
        if (workingDirectory != null) {
            dbg.println("in: " + workingDirectory.getPath());
            cmdLine.setWorkingDirectory(workingDirectory);
        }

        if (env != null) {
            dbg.println("with Env:");
            for (final String element : env) {
                final String[] nameValue = element.split("=", 2);
                if (nameValue.length < 2) {
                    throw new MojoFailureException("   Misformed env: '" + element + "'");
                }
                dbg.println("   '" + nameValue[0] + "=" + nameValue[1] + "'");
                cmdLine.addEnvironment(nameValue[0], nameValue[1]);
            }
        }

        final Process process = cmdLine.execute();
        final StreamGobbler errorGobbler = new StreamGobbler(process.getErrorStream(), err);
        final StreamGobbler outputGobbler = new StreamGobbler(process.getInputStream(), out);

        errorGobbler.start();
        outputGobbler.start();
        process.waitFor();
        final int exitValue = process.exitValue();
        dbg.println("ExitValue: " + exitValue);
        final int timeout = 5000;
        errorGobbler.join(timeout);
        outputGobbler.join(timeout);
        if (exitValue != 0 ^ expectFailure) {
            if (log == null) {
                System.err.println(err.toString());
                System.err.println(out.toString());
                System.err.println(dbg.toString());
            } else {
                log.warn(err.toString());
                log.warn(out.toString());
                log.warn(dbg.toString());
            }
            throw new MojoExecutionException("exit code: " + exitValue);
        }
        return exitValue;
    } catch (final MojoExecutionException e) {
        throw e;
    } catch (final Exception e) {
        throw new MojoExecutionException("Could not launch " + cmdLine, e);
    }
}

---

From source file:net.duckling.ddl.util.FileUtil.java

/**
 *  Runs a simple command in given directory.
 *  The environment is inherited from the parent process (e.g. the
 *  one in which this Java VM runs)./*from w ww.j a v a 2s .c  o m*/
 *
 *  @return Standard output from the command.
 *  @param  command The command to run
 *  @param  directory The working directory to run the command in
 *  @throws IOException If the command failed
 *  @throws InterruptedException If the command was halted
 */
public static String runSimpleCommand(String command, String directory)
        throws IOException, InterruptedException {
    StringBuffer result = new StringBuffer();

    LOG.info("Running simple command " + command + " in " + directory);

    Process process = Runtime.getRuntime().exec(command, null, new File(directory));

    BufferedReader stdout = null;
    BufferedReader stderr = null;

    try {
        stdout = new BufferedReader(new InputStreamReader(process.getInputStream()));
        stderr = new BufferedReader(new InputStreamReader(process.getErrorStream()));

        String line;

        while ((line = stdout.readLine()) != null) {
            result.append(line).append("\n");
        }

        StringBuffer error = new StringBuffer();
        while ((line = stderr.readLine()) != null) {
            error.append(line).append("\n");
        }

        if (error.length() > 0) {
            LOG.error("Command failed, error stream is: " + error);
        }

        process.waitFor();

    } finally {
        // we must close all by exec(..) opened streams: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4784692
        process.getInputStream().close();
        if (stdout != null) {
            stdout.close();
        }
        if (stderr != null) {
            stderr.close();
        }
    }

    return result.toString();
}

---

From source file:com.samczsun.helios.Helios.java

private static boolean ensurePython3Set0(boolean forceCheck) {
    String python3Location = Settings.PYTHON3_LOCATION.get().asString();
    if (python3Location.isEmpty()) {
        SWTUtil.showMessage("You need to set the location of the Python/PyPy 3.x executable", true);
        setLocationOf(Settings.PYTHON3_LOCATION);
        python3Location = Settings.PYTHON3_LOCATION.get().asString();
    }/*from w ww.j  a v a  2s  .  c  o  m*/
    if (python3Location.isEmpty()) {
        return false;
    }
    if (python3Verified == null || forceCheck) {
        try {
            Process process = new ProcessBuilder(python3Location, "-V").start();
            String result = IOUtils.toString(process.getInputStream());
            String error = IOUtils.toString(process.getErrorStream());
            python3Verified = error.startsWith("Python 3") || result.startsWith("Python 3");
        } catch (Throwable t) {
            t.printStackTrace();
            StringWriter sw = new StringWriter();
            t.printStackTrace(new PrintWriter(sw));
            SWTUtil.showMessage("The Python 3.x executable is invalid." + Constants.NEWLINE + Constants.NEWLINE
                    + sw.toString());
            python3Verified = false;
        }
    }
    return python3Verified;
}

---

From source file:com.samczsun.helios.Helios.java

private static boolean ensurePython2Set0(boolean forceCheck) {
    String python2Location = Settings.PYTHON2_LOCATION.get().asString();
    if (python2Location.isEmpty()) {
        SWTUtil.showMessage("You need to set the location of the Python/PyPy 2.x executable", true);
        setLocationOf(Settings.PYTHON2_LOCATION);
        python2Location = Settings.PYTHON2_LOCATION.get().asString();
    }/*  w w w  .  j  av  a 2  s . c o  m*/
    if (python2Location.isEmpty()) {
        return false;
    }
    if (python2Verified == null || forceCheck) {
        try {
            Process process = new ProcessBuilder(python2Location, "-V").start();
            String result = IOUtils.toString(process.getInputStream());
            String error = IOUtils.toString(process.getErrorStream());
            python2Verified = error.startsWith("Python 2") || result.startsWith("Python 2");
        } catch (Throwable t) {
            StringWriter sw = new StringWriter();
            t.printStackTrace(new PrintWriter(sw));
            SWTUtil.showMessage("The Python 2.x executable is invalid." + Constants.NEWLINE + Constants.NEWLINE
                    + sw.toString());
            t.printStackTrace();
            python2Verified = false;
        }
    }
    return python2Verified;
}

---

From source file:com.alibaba.otter.shared.common.utils.cmd.Exec.java

public static Result execute(Process process, String cmd, String outputLog, byte[] input, File workingDir)
        throws Exception {
    // ???// w w  w.  j  a v a2  s. c  om
    Thread inputThread = new InputPumper((input == null) ? new byte[] {} : input, process.getOutputStream());
    StreamCollector stderr = null;
    StreamCollector stdout = null;
    FileOutputStream fileOutput = null;
    StreamAppender outputLogger = null;
    String errString = null;
    String outString = null;

    try {
        if (outputLog == null) {
            stdout = new StreamCollector(process.getInputStream());
            stderr = new StreamCollector(process.getErrorStream());
            stdout.start();
            stderr.start();
        } else {
            errString = "stderr output redirected to file " + outputLog;
            outString = "stdout output redirected to file " + outputLog;
            fileOutput = new FileOutputStream(outputLog);
            outputLogger = new StreamAppender(fileOutput);
            outputLogger.writeInput(process.getErrorStream(), process.getInputStream());
        }

        inputThread.start();

        final int exitCode = process.waitFor();

        inputThread.join();

        if (outputLogger != null) {
            outputLogger.finish();
        }

        if (stdout != null) {
            stdout.join();
            outString = stdout.toString();
        }

        if (stderr != null) {
            stderr.join();
            errString = stderr.toString();
        }

        return new Result(cmd.toString(), outString, errString, exitCode);
    } finally {
        IOUtils.closeQuietly(fileOutput);

        if (process != null) {
            // evitons http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6462165
            process.getInputStream().close();
            process.getOutputStream().close();
            process.getErrorStream().close();
            process.destroy();
        }
    }
}

---

From source file:edu.uci.ics.asterix.test.aql.TestsUtils.java

private static String getProcessOutput(Process p) throws Exception {
    StringBuilder s = new StringBuilder();
    BufferedInputStream bisIn = new BufferedInputStream(p.getInputStream());
    StringWriter writerIn = new StringWriter();
    IOUtils.copy(bisIn, writerIn, "UTF-8");
    s.append(writerIn.toString());//  www .j a v a  2 s. com

    BufferedInputStream bisErr = new BufferedInputStream(p.getErrorStream());
    StringWriter writerErr = new StringWriter();
    IOUtils.copy(bisErr, writerErr, "UTF-8");
    s.append(writerErr.toString());
    if (writerErr.toString().length() > 0) {
        StringBuilder sbErr = new StringBuilder();
        sbErr.append("script execution failed - error message:\n");
        sbErr.append("-------------------------------------------\n");
        sbErr.append(s.toString());
        sbErr.append("-------------------------------------------\n");
        LOGGER.info(sbErr.toString().trim());
        throw new Exception(s.toString().trim());
    }
    return s.toString();
}

---

From source file:GenAppStoreSales.java

/** Connects to the AppleStore and download pending sale reports
 * (if they are still available)/*from   w w  w.ja  va2s .c  om*/
 * Requires Auntoingestion.class in the same path together with GenAppStoreSales 
 * @throws IOException 
 */
private static void autoingestionDownload(String reportName, String dateType, String dateCode)
        throws IOException {
    File reportFile = new File(sourcePath, reportName);
    Runtime rt = Runtime.getRuntime();

    if (!reportFile.isFile()) {
        String s;

        System.out.println(reportName + " requesting...");
        Process downloadReport = rt
                .exec("java Autoingestion" + autoingestionPreArgs + dateType + " " + "Summary " + dateCode);

        BufferedReader stdInput = new BufferedReader(new InputStreamReader(downloadReport.getInputStream()));
        BufferedReader stdError = new BufferedReader(new InputStreamReader(downloadReport.getErrorStream()));

        // read the output from the command
        while ((s = stdInput.readLine()) != null)
            System.out.println(s);

        // read any errors from the attempted command
        while ((s = stdError.readLine()) != null)
            System.out.println(s);
        //            System.out.println("gzip -d " + currentPath.replace(" ", "\\ ") + "/" + reportName);
        //            System.out.println("mv " + reportName + " " + sourcePath.replace(" ", "\\ ") + "/" + reportName);
        rt.exec("gzip -d " + currentPath.replace(" ", "\\ ") + "/" + reportName);
        rt.exec("mv " + reportName + " " + sourcePath.replace(" ", "\\ ") + "/" + reportName);
        rt.exec("rm " + currentPath.replace(" ", "\\ ") + "/*.gz");

    }
    //       else System.out.println(reportName + " verified");
}

---

From source file:exm.stc.ui.Main.java

private static void runPreprocessor(Logger logger, String input, String output, List<String> preprocArgs) {
    List<String> cmd = new ArrayList<String>();
    /*//from www.  jav  a  2  s  .co  m
      -undef flag is provided to disable non-standard macros
     */
    if (useGCCProcessor()) {
        // We use gcc -E because cpp is broken on Mac GCC 4.2.1
        //    Cf. http://stackoverflow.com/questions/4137923
        cmd.addAll(Arrays.asList("gcc", "-E", "-undef", "-x", "c", input, "-o", output));
    } else {
        cmd.addAll(Arrays.asList("cpp", "-undef", input, output));
    }

    for (String dir : Settings.getModulePath()) {
        cmd.add("-I");
        cmd.add(dir);
    }

    for (String macro : preprocArgs) {
        cmd.add("-D");
        cmd.add(macro);
    }

    String cmdString = StringUtils.join(cmd, ' ');
    try {
        logger.debug("Running cpp: " + cmdString);
        Process cpp = Runtime.getRuntime().exec(cmd.toArray(new String[] {}));
        int cppExitCode = -1;
        boolean done = false;
        do {
            try {
                cppExitCode = cpp.waitFor();
                done = true;
            } catch (InterruptedException ex) {
                // Continue on after spurious interrupt
            }
        } while (!done);

        StringWriter sw = new StringWriter();
        IOUtils.copy(cpp.getErrorStream(), sw, "UTF-8");
        String cppStderr = sw.toString();

        logger.debug("Preprocessor exit code: " + cppExitCode);
        logger.debug("Preprocessor stderr: " + cppStderr);

        if (cppExitCode != 0) {
            // Print stderr message first, then clarify that failure was in preprocessor
            System.out.println(cppStderr);
            System.out.println("Aborting due to failure in cpp preprocessor invoked as: " + cmdString + ". "
                    + ("Exit code was " + cppExitCode + ". "));
            System.exit(1);
        } else if (cppStderr.length() != 0) {
            logger.warn("Preprocessor warnings:\n" + cppStderr);
        }
    } catch (IOException e) {
        System.out.println("I/O error while launching preprocessor with command line:" + cmdString + ": "
                + e.getMessage());
        System.exit(1);
    }
}

---

From source file:com.l2jfree.sql.L2DataSource.java

protected static final void writeBackup(String databaseName, Process run) {
    try {//from ww  w  . j  ava 2s .c  o  m
        boolean success = false;

        InputStream in = null;
        try {
            in = run.getInputStream();

            success = writeBackup(databaseName, in);
        } catch (IOException e) {
            _log.warn("DatabaseBackupManager: Could not make backup:", e);
        } finally {
            IOUtils.closeQuietly(in);
        }

        if (!success) {
            BufferedReader br = null;
            try {
                br = new BufferedReader(new InputStreamReader(run.getErrorStream()));

                for (String line; (line = br.readLine()) != null;)
                    _log.warn("DatabaseBackupManager: " + line);
            } catch (Exception e) {
                _log.warn("DatabaseBackupManager: Could not make backup:", e);
            } finally {
                IOUtils.closeQuietly(br);
            }
        }

        run.waitFor();
    } catch (Exception e) {
        _log.warn("DatabaseBackupManager: Could not make backup:", e);
    }
}

---

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