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.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();
    }//from   w  ww  .j a v  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;
}

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From source file:net.ftb.util.OSUtils.java

/**
 * Used to check if a posix OS is 64-bit
 * @return true if 64-bit Posix OS//ww w  . ja  va 2  s .co m
 */
public static boolean is64BitPosix() {
    String line, result = "";
    try {
        Process command = Runtime.getRuntime().exec("uname -m");
        BufferedReader in = new BufferedReader(new InputStreamReader(command.getInputStream()));
        while ((line = in.readLine()) != null) {
            result += (line + "\n");
        }
    } catch (Exception e) {
        Logger.logError("Posix bitness check failed", e);
    }
    // 32-bit Intel Linuces, it returns i[3-6]86. For 64-bit Intel, it says x86_64
    return result.contains("_64");
}

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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  .  j  a  v a 2  s.c  o 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;
}

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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 ww  . j av  a 2  s . c o  m
    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();
        }
    }
}

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From source file:com.evolveum.midpoint.test.util.TestUtil.java

public static String execSystemCommand(String command, boolean ignoreExitCode)
        throws IOException, InterruptedException {
    Runtime runtime = Runtime.getRuntime();
    LOGGER.debug("Executing system command: {}", command);
    Process process = runtime.exec(command);
    int exitCode = process.waitFor();
    LOGGER.debug("Command exit code: {}", exitCode);
    BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
    StringBuilder output = new StringBuilder();
    String line = null;//  www .  jav a  2 s .c  o  m
    while ((line = reader.readLine()) != null) {
        output.append(line);
    }
    reader.close();
    String outstring = output.toString();
    LOGGER.debug("Command output:\n{}", outstring);
    if (!ignoreExitCode && exitCode != 0) {
        String msg = "Execution of command '" + command + "' failed with exit code " + exitCode;
        LOGGER.error("{}", msg);
        throw new IOException(msg);
    }
    return outstring;
}

---

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  va  2  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;

}

---

From source file:com.buaa.cfs.security.ShellBasedIdMapping.java

/**
 * Get the list of users or groups returned by the specified command, and save them in the corresponding map.
 *
 * @throws IOException// w w  w  .  j  a  v  a  2  s  .c om
 */
@VisibleForTesting
public static boolean updateMapInternal(BiMap<Integer, String> map, String mapName, String command,
        String regex, Map<Integer, Integer> staticMapping) throws IOException {
    boolean updated = false;
    BufferedReader br = null;
    try {
        Process process = Runtime.getRuntime().exec(new String[] { "bash", "-c", command });
        br = new BufferedReader(new InputStreamReader(process.getInputStream(), Charset.defaultCharset()));
        String line = null;
        while ((line = br.readLine()) != null) {
            String[] nameId = line.split(regex);
            if ((nameId == null) || (nameId.length != 2)) {
                throw new IOException("Can't parse " + mapName + " list entry:" + line);
            }
            LOG.debug("add to " + mapName + "map:" + nameId[0] + " id:" + nameId[1]);
            // HDFS can't differentiate duplicate names with simple authentication
            final Integer key = staticMapping.get(parseId(nameId[1]));
            final String value = nameId[0];
            if (map.containsKey(key)) {
                final String prevValue = map.get(key);
                if (value.equals(prevValue)) {
                    // silently ignore equivalent entries
                    continue;
                }
                reportDuplicateEntry("Got multiple names associated with the same id: ", key, value, key,
                        prevValue);
                continue;
            }
            if (map.containsValue(value)) {
                final Integer prevKey = map.inverse().get(value);
                reportDuplicateEntry("Got multiple ids associated with the same name: ", key, value, prevKey,
                        value);
                continue;
            }
            map.put(key, value);
            updated = true;
        }
        LOG.debug("Updated " + mapName + " map size: " + map.size());

    } catch (IOException e) {
        LOG.error("Can't update " + mapName + " map");
        throw e;
    } finally {
        if (br != null) {
            try {
                br.close();
            } catch (IOException e1) {
                LOG.error("Can't close BufferedReader of command result", e1);
            }
        }
    }
    return updated;
}

---

From source file:net.ftb.util.OSUtils.java

/**
 * Used to check if OS X is 64-bit//from w  w  w. java2s  .c om
 * @return true if 64-bit OS X
 */

public static boolean is64BitOSX() {
    String line, result = "";
    if (!(System.getProperty("os.version").startsWith("10.6")
            || System.getProperty("os.version").startsWith("10.5"))) {
        return true;//10.7+ only shipped on hardware capable of using 64 bit java
    }
    try {
        Process command = Runtime.getRuntime().exec("/usr/sbin/sysctl -n hw.cpu64bit_capable");
        BufferedReader in = new BufferedReader(new InputStreamReader(command.getInputStream()));
        while ((line = in.readLine()) != null) {
            result += (line + "\n");
        }
    } catch (Exception e) {
        Logger.logError("OS X bitness check failed", e);
    }
    return result.equals("1");
}

---

From source file:com.opentable.db.postgres.embedded.EmbeddedPostgres.java

private static List<String> system(ProcessBuilder.Redirect errorRedirector,
        ProcessBuilder.Redirect outputRedirector, String... command) {
    try {//from   w  w w  .  j av  a  2s  .  c  o m
        final ProcessBuilder builder = new ProcessBuilder(command);
        builder.redirectError(errorRedirector);
        builder.redirectOutput(outputRedirector);
        final Process process = builder.start();
        Verify.verify(0 == process.waitFor(), "Process %s failed\n%s", Arrays.asList(command),
                IOUtils.toString(process.getErrorStream()));
        try (InputStream stream = process.getInputStream()) {
            return IOUtils.readLines(stream);
        }
    } catch (final Exception e) {
        throw Throwables.propagate(e);
    }
}

---

From source file:io.werval.cli.DamnSmallDevShell.java

static void rebuild(URL[] applicationClasspath, URL[] runtimeClasspath, Set<File> sourcesRoots,
        File classesDir) {/*w w w . j av a  2 s .  c  om*/
    System.out.println("Compiling Application...");
    String javacOutput = EMPTY;
    try {
        // Collect java files
        String javaFiles = EMPTY;
        for (File sourceRoot : sourcesRoots) {
            if (sourceRoot.exists()) {
                ProcessBuilder findBuilder = new ProcessBuilder("find", sourceRoot.getAbsolutePath(), "-type",
                        "f", "-iname", "*.java");
                Process find = findBuilder.start();
                int returnCode = find.waitFor();
                if (returnCode != 0) {
                    throw new IOException("Unable to find java source files in " + sourceRoot);
                }
                javaFiles += NEWLINE + readAllAsString(find.getInputStream(), 4096, UTF_8);
            }
        }
        if (hasText(javaFiles)) {
            // Write list in a temporary file
            File javaListFile = new File(classesDir, ".devshell-java-list");
            try (FileWriter writer = new FileWriter(javaListFile)) {
                writer.write(javaFiles);
                writer.close();
            }
            // Compile
            String[] classpathStrings = new String[runtimeClasspath.length];
            for (int idx = 0; idx < runtimeClasspath.length; idx++) {
                classpathStrings[idx] = runtimeClasspath[idx].toURI().toASCIIString();
            }
            ProcessBuilder javacBuilder = new ProcessBuilder("javac", "-encoding", "UTF-8", "-source", "1.8",
                    "-d", classesDir.getAbsolutePath(), "-classpath", join(classpathStrings, ":"),
                    "@" + javaListFile.getAbsolutePath());
            Process javac = javacBuilder.start();
            int returnCode = javac.waitFor();
            if (returnCode != 0) {
                throw new IOException("Unable to build java source files.");
            }
            javacOutput = readAllAsString(javac.getInputStream(), 4096, UTF_8);
        }
    } catch (InterruptedException | IOException | URISyntaxException ex) {
        throw new WervalException("Unable to rebuild" + (isEmpty(javacOutput) ? "" : "\n" + javacOutput), ex);
    }
}

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