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:de.huberlin.wbi.hiway.am.HiWay.java

/**
 * If the debug flag is set, dump out contents of current working directory and the environment to stdout for debugging.
 *//*  w ww  .  j a  va  2 s .  c o m*/
private static void dumpOutDebugInfo() {
    System.out.println("Dump debug output");
    Map<String, String> envs = System.getenv();
    for (Map.Entry<String, String> env : envs.entrySet()) {
        System.out.println("System env: key=" + env.getKey() + ", val=" + env.getValue());
    }

    String cmd = "ls -al";
    Runtime run = Runtime.getRuntime();
    Process pr = null;
    try {
        pr = run.exec(cmd);
        pr.waitFor();

        try (BufferedReader buf = new BufferedReader(new InputStreamReader(pr.getInputStream()))) {
            String line = "";
            while ((line = buf.readLine()) != null) {
                System.out.println("System CWD content: " + line);
            }
        }
    } catch (IOException | InterruptedException e) {
        e.printStackTrace();
        System.exit(-1);
    }
}

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From source file:gov.lanl.adore.djatoka.plugin.ExtractPDF.java

/**
 * Get PDF information with pdfinfo:/*from  w  ww  . j a  v  a2 s  .co  m*/
 * - "Pages: X": number of pages;
 * - "Page X size: www.ww hhh.hh": size of each page, in pts.
 * @returns a map:
 * - [Pages][n]
 * - [Page 1][111.11 222.22]
 * - [Page i][www.ww hhh.hh]
 * - [Page n][999.99 1000.00]
 */
private static Map<String, String> getPDFProperties(ImageRecord input) throws DjatokaException {
    logger.debug("Getting PDF info");

    try {
        setPDFCommandsPath();
    } catch (IllegalStateException e) {
        logger.error("Failed to set PDF commands path: ", e);
        throw e;
    }

    HashMap<String, String> pdfProperties = new HashMap<String, String>();

    String sourcePath = null;

    if (input.getImageFile() != null) {
        logger.debug("PDFInfo image file: " + input.getImageFile());
        sourcePath = input.getImageFile();
    } else if (input.getObject() != null && (input.getObject() instanceof InputStream)) {
        FileInputStream fis = null;
        fis = (FileInputStream) input.getObject();
        File in;

        // Copy to tmp file
        try {
            String cacheDir = OpenURLJP2KService.getCacheDir();
            if (cacheDir != null) {
                in = File.createTempFile("tmp", ".pdf", new File(cacheDir));
            } else {
                in = File.createTempFile("tmp", ".pdf");
            }
            in.deleteOnExit();

            FileOutputStream fos = new FileOutputStream(in);
            IOUtils.copyStream(fis, fos);
        } catch (IOException e) {
            logger.error(e, e);
            throw new DjatokaException(e);
        }
        sourcePath = in.getAbsolutePath();
    } else {
        throw new DjatokaException("File not defined and Input Object Type " + input //.getObject().getClass().getName()
                + " is not supported");
    }

    String pdfinfoCmd[] = PDFINFO_COMMAND.clone();
    pdfinfoCmd[PDFINFO_COMMAND_POSITION_BIN] = pdfinfoPath;
    pdfinfoCmd[PDFINFO_COMMAND_POSITION_FIRSTPAGE] = "1";
    pdfinfoCmd[PDFINFO_COMMAND_POSITION_LASTPAGE] = "-1"; // Last page even we not knowing its number.
    pdfinfoCmd[PDFINFO_COMMAND_POSITION_FILE] = sourcePath;
    Process pdfProc = null;
    try {
        ArrayList<MatchResult> pageSizes = new ArrayList<MatchResult>();
        MatchResult pages = null;

        pdfProc = Runtime.getRuntime().exec(pdfinfoCmd);
        BufferedReader lr = new BufferedReader(new InputStreamReader(pdfProc.getInputStream()));
        String line;
        for (line = lr.readLine(); line != null; line = lr.readLine()) {
            Matcher mm1 = PAGES_PATT.matcher(line);
            if (mm1.matches())
                pages = mm1.toMatchResult();
            Matcher mm2 = MEDIABOX_PATT.matcher(line);
            if (mm2.matches())
                pageSizes.add(mm2.toMatchResult());
        }

        int istatus = pdfProc.waitFor();
        if (istatus != 0)
            logger.error("pdfinfo proc failed, exit status=" + istatus + ", file=" + sourcePath);

        if (pages == null) {
            logger.error("Did not find 'Pages' line in output of pdfinfo command: "
                    + Arrays.deepToString(pdfinfoCmd));
            pdfProperties.put("Pages", "0");
        } else {
            //int n = Integer.parseInteger(pages.group(1));
            pdfProperties.put("Pages", pages.group(1));
        }

        if (pageSizes.isEmpty()) {
            logger.error("Did not find \"Page X size\" lines in output of pdfinfo command: "
                    + Arrays.deepToString(pdfinfoCmd));
            throw new IllegalArgumentException("Failed to get pages size of PDF with pdfinfo.");
        } else {
            for (MatchResult mr : pageSizes) {
                String page = mr.group(1);

                float x0 = Float.parseFloat(mr.group(2));
                float y0 = Float.parseFloat(mr.group(3));
                float x1 = Float.parseFloat(mr.group(4));
                float y1 = Float.parseFloat(mr.group(5));
                float w = Math.abs(x1 - x0);
                float h = Math.abs(y1 - y0);
                // Have to scale page sizes by max dpi (MAX_DPI / DEFAULT_DENSITY). Otherwise, BookReader.js will request the wrong zoom level (svc.level).
                float ws = w * MAX_DPI / DEFAULT_DENSITY;
                float hs = h * MAX_DPI / DEFAULT_DENSITY;
                String width = "" + ws; //mr.group(2);
                String height = "" + hs; //mr.group(3);
                pdfProperties.put("Page " + page, width + " " + height);
            }
        }

    } catch (Exception e) {
        logger.error("Failed getting PDF information: ", e);
        throw new DjatokaException("Failed getting PDF information: ", e);
    } finally {
        // Our exec() should just consume one of the streams, but we want to stay safe.
        // http://mark.koli.ch/2011/01/leaky-pipes-remember-to-close-your-streams-when-using-javas-runtimegetruntimeexec.html
        org.apache.commons.io.IOUtils.closeQuietly(pdfProc.getOutputStream());
        org.apache.commons.io.IOUtils.closeQuietly(pdfProc.getInputStream());
        org.apache.commons.io.IOUtils.closeQuietly(pdfProc.getErrorStream());
    }

    return pdfProperties;
}

---

From source file:io.hops.hopsworks.common.util.HopsUtils.java

/**
 * Retrieves the global hadoop classpath.
 *
 * @param params/*w  w  w  .  j  a  va 2  s  . c om*/
 * @return hadoop global classpath
 */
public static String getHadoopClasspathGlob(String... params) {
    ProcessBuilder pb = new ProcessBuilder(params);
    try {
        Process process = pb.start();
        int errCode = process.waitFor();
        if (errCode != 0) {
            return "";
        }
        StringBuilder sb = new StringBuilder();
        try (BufferedReader br = new BufferedReader(new InputStreamReader(process.getInputStream()))) {
            String line;
            while ((line = br.readLine()) != null) {
                sb.append(line);
            }
        }
        //Now we must remove the yarn shuffle library as it creates issues for 
        //Zeppelin Spark Interpreter
        StringBuilder classpath = new StringBuilder();

        for (String path : sb.toString().split(File.pathSeparator)) {
            if (!path.contains("yarn") && !path.contains("jersey") && !path.contains("servlet")) {
                classpath.append(path).append(File.pathSeparator);
            }
        }
        if (classpath.length() > 0) {
            return classpath.toString().substring(0, classpath.length() - 1);
        }

    } catch (IOException | InterruptedException ex) {
        Logger.getLogger(HopsUtils.class.getName()).log(Level.SEVERE, null, ex);
    }
    return "";
}

---

From source file:configuration.Cluster.java

public static String[] call_Python_Process(String script, String commands)
        throws IOException, InterruptedException {
    //System.out.println("Commands>"+commands);
    String STDoutput = "";
    String STDError = "";

    Process p = Runtime.getRuntime().exec("python " + script + " " + commands);
    BufferedReader bri = new BufferedReader(new InputStreamReader(p.getInputStream()));
    BufferedReader bre = new BufferedReader(new InputStreamReader(p.getErrorStream()));
    String line = "";

    // Check Output
    while ((line = bri.readLine()) != null) {
        STDoutput += line;/*from   w  ww.j av  a2 s .c  o  m*/
    }
    bri.close();
    while ((line = bre.readLine()) != null) {
        STDError += line;
    }
    bre.close();
    p.waitFor();

    String[] tab = { STDoutput, STDError };
    return tab;
}

---

From source file:Main.java

public void run() {
    try {/*from w  w w.ja  v a  2 s.  c  om*/
        Process child = Runtime.getRuntime().exec(executable);
        BufferedReader br = new BufferedReader(new InputStreamReader(child.getInputStream()));
        for (String s = br.readLine(); s != null; s = br.readLine()) {
            System.out.println("[" + prIndex + "] " + s);
            try {
                Thread.sleep(20);
            } catch (Exception intex) {
            }
        }
        br.close();
    } catch (Exception ioex) {
        System.err.println("IOException for process #" + prIndex + ": " + ioex.getMessage());
    }
}

---

From source file:com.github.born2snipe.project.setup.scm.GitRepoInitializer.java

private void executeCommandIn(File projectDir, String... commands) {
    try {/* w  w w . j a v a 2 s.  c  o m*/
        ProcessBuilder processBuilder = new ProcessBuilder(commands);
        processBuilder.directory(projectDir);
        processBuilder.redirectErrorStream(true);
        Process process = processBuilder.start();
        System.out.println(IOUtils.toString(process.getInputStream()));
        process.waitFor();
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

---

From source file:com.samsung.sjs.Compiler.java

public static int manage_c_compiler(Process clang, CompilerOptions opts)
        throws IOException, InterruptedException {
    clang.waitFor();//from  www .  ja  v a  2  s  .  co  m
    if (clang.exitValue() != 0 && !opts.debug()) {
        // If clang failed and we didn't already dump its stderr
        StringWriter w_stdout = new StringWriter(), w_stderr = new StringWriter();
        IOUtils.copy(clang.getInputStream(), w_stdout, Charset.defaultCharset());
        IOUtils.copy(clang.getErrorStream(), w_stderr, Charset.defaultCharset());
        String compstdout = w_stdout.toString();
        String compstderr = w_stderr.toString();
        System.err.println("C compiler [" + opts.clangPath() + "] failed.");
        System.out.println("C compiler stdout:");
        System.out.println(compstdout);
        System.err.println("C compiler stderr:");
        System.err.println(compstderr);
    }
    return clang.exitValue();
}

---

From source file:de.christian_klisch.software.servercheck.GeneralTest.java

@Test
public void testCommandline() {
    System.out.println(CommandView.class.toString());
    try {/*from ww  w  . j a  v  a 2 s . co  m*/
        Process p = Runtime.getRuntime().exec("echo 0");
        System.out.println(IOUtils.toString(p.getInputStream(), "UTF-8"));
    } catch (IOException e) {
        e.printStackTrace();
    }

    assertTrue(true);
}

---

From source file:iotest.WriteToFileTest.java

@Test
@Ignore// www .ja  v a2 s  .  c o  m
public void printWorkingDIR() throws IOException {

    String[] cmd = { "/bin/bash", "-c", "cd /media/sf_FBDC_PROD; ls -l" };
    Process p = Runtime.getRuntime().exec(cmd);

    String output = IOUtils.toString(p.getInputStream());

    System.out.println(">>>>>>>>>>>" + output);
}

---

From source file:io.galeb.router.handlers.InfoHandler.java

private String getUptimeSO() {
    ProcessBuilder processBuilder = new ProcessBuilder("uptime");
    processBuilder.redirectErrorStream(true);
    try {/*from   w  w  w.ja  v a 2 s .c om*/
        Process process = processBuilder.start();
        return IOUtils.toString(process.getInputStream(), "UTF-8").replace("\n", "");
    } catch (Exception e) {
        logger.error(ExceptionUtils.getStackTrace(e));
        return "";
    }
}

---

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