Example usage for java.io FileReader FileReader

List of usage examples for java.io FileReader FileReader

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Introduction

In this page you can find the example usage for java.io FileReader FileReader.

Prototype

public FileReader(FileDescriptor fd)

Source Link

Document

Creates a new FileReader , given the FileDescriptor to read, using the platform's java.nio.charset.Charset#defaultCharset() default charset .

Usage

From source file:FileList.java

public static void main(String[] args) {
    final int assumedLineLength = 50;
    File file = new File(args[0]);
    List<String> fileList = new ArrayList<String>((int) (file.length() / assumedLineLength) * 2);
    BufferedReader reader = null;
    int lineCount = 0;
    try {//from  ww w  . ja va  2  s  .c o m
        reader = new BufferedReader(new FileReader(file));
        for (String line = reader.readLine(); line != null; line = reader.readLine()) {
            fileList.add(line);
            lineCount++;
        }
    } catch (IOException e) {
        System.err.format("Could not read %s: %s%n", file, e);
        System.exit(1);
    } finally {
        if (reader != null) {
            try {
                reader.close();
            } catch (IOException e) {
            }
        }
    }
    int repeats = Integer.parseInt(args[1]);
    Random random = new Random();
    for (int i = 0; i < repeats; i++) {
        System.out.format("%d: %s%n", i, fileList.get(random.nextInt(lineCount - 1)));
    }
}

From source file:com.jdom.mediadownloader.MediaDownloader.java

public static void main(String[] args) {
    if (args.length != 1) {
        throw new IllegalArgumentException(
                "You must pass the location to the properties file to the application!");
    }// w w  w . j  a  va2 s  .  c  o  m

    File file = new File(args[0]);

    Properties properties = new Properties();
    FileReader fileReader = null;

    try {
        fileReader = new FileReader(file);
        properties.load(fileReader);
    } catch (Exception e) {
        throw new RuntimeException(e);
    } finally {
        Closeables.closeQuietly(fileReader);
    }

    System.getProperties().putAll(properties);

    initializeContext();

    MediaDownloader mediaDownloader = ctx.getBean(MediaDownloader.class);
    mediaDownloader.processDownloads();
}

From source file:org.datagator.api.client.SimpleMatrix.java

public static void main(String[] args) throws IOException {
    FileReader reader = new FileReader("../../data/json/IGO_Weighted_Dyad.json");
    SimpleMatrix matrix = (SimpleMatrix) Entity.create(reader);

    // empty matrix
    //Matrix matrix = (SimpleMatrix) Entity.create(new java.io.StringReader(
    //    "{\"kind\": \"datagator#SimpleMatrix\", \"columnHeaders\": 0, " +
    //    "\"rowHeaders\": 0, \"rows\": [[]], \"rowsCount\": 1, " +
    //    "\"columnsCount\": 0}"));
    System.out.println(matrix.kind);
    System.out.println(Integer.toString(matrix.rowsCount));
    System.out.println(Integer.toString(matrix.columnsCount));
}

From source file:akori.AKORI.java

public static void main(String[] args) throws IOException, InterruptedException {
    System.out.println("esto es AKORI");

    URL = "http://www.mbauchile.cl";
    PATH = "E:\\NetBeansProjects\\AKORI\\";
    NAME = "mbauchile.png";
    // Extrar DOM tree

    Document doc = Jsoup.connect(URL).timeout(0).get();

    // The Firefox driver supports javascript 
    WebDriver driver = new FirefoxDriver();
    driver.manage().window().maximize();
    System.out.println(driver.manage().window().getSize().toString());
    System.out.println(driver.manage().window().getPosition().toString());
    int xmax = driver.manage().window().getSize().width;
    int ymax = driver.manage().window().getSize().height;

    // Go to the URL page
    driver.get(URL);//from  w  w  w  .j  a  va  2 s .c  o  m

    File screen = ((TakesScreenshot) driver).getScreenshotAs(OutputType.FILE);
    FileUtils.copyFile(screen, new File(PATH + NAME));

    BufferedImage img = ImageIO.read(new File(PATH + NAME));
    //Graphics2D graph = img.createGraphics();

    BufferedImage img1 = new BufferedImage(xmax, ymax, BufferedImage.TYPE_INT_ARGB);
    Graphics2D graph1 = img.createGraphics();
    double[][] matrix = new double[ymax][xmax];
    BufferedReader in = new BufferedReader(new FileReader("et.txt"));
    String linea;
    double max = 0;
    graph1.drawImage(img, 0, 0, null);
    HashMap<String, Integer> lista = new HashMap<String, Integer>();
    int count = 0;
    for (int i = 0; (linea = in.readLine()) != null && i < 10000; ++i) {
        String[] datos = linea.split(",");
        int x = (int) Double.parseDouble(datos[0]);
        int y = (int) Double.parseDouble(datos[2]);
        long time = Double.valueOf(datos[4]).longValue();
        if (x >= xmax || y >= ymax)
            continue;
        if (time < 691215)
            continue;
        if (time > 705648)
            break;
        if (lista.containsKey(x + "," + y))
            lista.put(x + "," + y, lista.get(x + "," + y) + 1);
        else
            lista.put(x + "," + y, 1);
        ++count;
    }
    System.out.println(count);
    in.close();
    Iterator iter = lista.entrySet().iterator();
    Map.Entry e;
    for (String key : lista.keySet()) {
        Integer i = lista.get(key);
        if (max < i)
            max = i;
    }
    System.out.println(max);
    max = 0;
    while (iter.hasNext()) {
        e = (Map.Entry) iter.next();
        String xy = (String) e.getKey();
        String[] datos = xy.split(",");
        int x = Integer.parseInt(datos[0]);
        int y = Integer.parseInt(datos[1]);
        matrix[y][x] += (int) e.getValue();
        double aux;
        if ((aux = normalMatrix(matrix, y, x, ((int) e.getValue()) * 4)) > max) {
            max = aux;
        }
        //normalMatrix(matrix,x,y,20);
        if (matrix[y][x] > max)
            max = matrix[y][x];
    }
    int A, R, G, B, n;
    for (int i = 0; i < xmax; ++i) {
        for (int j = 0; j < ymax; ++j) {
            if (matrix[j][i] != 0) {
                n = (int) Math.round(matrix[j][i] * 100 / max);
                R = Math.round((255 * n) / 100);
                G = Math.round((255 * (100 - n)) / 100);
                B = 0;
                A = Math.round((255 * n) / 100);
                ;
                if (R > 255)
                    R = 255;
                if (R < 0)
                    R = 0;
                if (G > 255)
                    G = 255;
                if (G < 0)
                    G = 0;
                if (R < 50)
                    A = 0;
                graph1.setColor(new Color(R, G, B, A));
                graph1.fillOval(i, j, 1, 1);
            }
        }
    }
    //graph1.dispose();

    ImageIO.write(img, "png", new File("example.png"));
    System.out.println(max);

    graph1.setColor(Color.RED);
    // Extraer elementos
    Elements e1 = doc.body().getAllElements();
    int i = 1;
    ArrayList<String> tags = new ArrayList<String>();
    for (Element temp : e1) {

        if (tags.indexOf(temp.tagName()) == -1) {
            tags.add(temp.tagName());

            List<WebElement> query = driver.findElements(By.tagName(temp.tagName()));
            for (WebElement temp1 : query) {
                Point po = temp1.getLocation();
                Dimension d = temp1.getSize();
                if (d.width <= 0 || d.height <= 0 || po.x < 0 || po.y < 0)
                    continue;
                System.out.println(i + " " + temp.nodeName());
                System.out.println("  x: " + po.x + " y: " + po.y);
                System.out.println("  width: " + d.width + " height: " + d.height);
                graph1.draw(new Rectangle(po.x, po.y, d.width, d.height));
                ++i;
            }
        }
    }

    graph1.dispose();
    ImageIO.write(img, "png", new File(PATH + NAME));

    driver.quit();

}

From source file:RhymingWords.java

public static void main(String[] args) throws IOException {

    FileReader words = new FileReader("words.txt");

    // do the reversing and sorting
    Reader rhymedWords = reverse(sort(reverse(words)));

    // write new list to standard out
    BufferedReader in = new BufferedReader(rhymedWords);
    String input;//w ww. j  a  va2  s.co m

    while ((input = in.readLine()) != null)
        System.out.println(input);
    in.close();
}

From source file:ReaderIter.java

public static void main(String[] args) throws IOException {
    // The RE pattern
    Pattern patt = Pattern.compile("[A-Za-z][a-z]+");
    // A FileReader (see the I/O chapter)
    BufferedReader r = new BufferedReader(new FileReader("ReaderIter.java"));

    // For each line of input, try matching in it.
    String line;/*w  w w .  ja v a2s.  co  m*/
    while ((line = r.readLine()) != null) {
        // For each match in the line, extract and print it.
        Matcher m = patt.matcher(line);
        while (m.find()) {
            // Simplest method:
            // System.out.println(m.group(0));

            // Get the starting position of the text
            int start = m.start(0);
            // Get ending position
            int end = m.end(0);
            // Print whatever matched.
            // Use CharacterIterator.substring(offset, end);
            System.out.println(line.substring(start, end));
        }
    }
}

From source file:azkaban.jobtype.HadoopSecureHiveWrapper.java

public static void main(final String[] args) throws Exception {

    String propsFile = System.getenv(ProcessJob.JOB_PROP_ENV);
    Properties prop = new Properties();
    prop.load(new BufferedReader(new FileReader(propsFile)));

    hiveScript = prop.getProperty("hive.script");

    final Configuration conf = new Configuration();

    UserGroupInformation.setConfiguration(conf);
    securityEnabled = UserGroupInformation.isSecurityEnabled();

    if (shouldProxy(prop)) {
        UserGroupInformation proxyUser = null;
        String userToProxy = prop.getProperty("user.to.proxy");
        if (securityEnabled) {
            String filelocation = System.getenv(UserGroupInformation.HADOOP_TOKEN_FILE_LOCATION);
            if (filelocation == null) {
                throw new RuntimeException("hadoop token information not set.");
            }//from   w  ww.j  a va 2s. c  om
            if (!new File(filelocation).exists()) {
                throw new RuntimeException("hadoop token file doesn't exist.");
            }

            logger.info("Found token file " + filelocation);

            logger.info("Setting " + HadoopSecurityManager.MAPREDUCE_JOB_CREDENTIALS_BINARY + " to "
                    + filelocation);
            System.setProperty(HadoopSecurityManager.MAPREDUCE_JOB_CREDENTIALS_BINARY, filelocation);

            UserGroupInformation loginUser = null;

            loginUser = UserGroupInformation.getLoginUser();
            logger.info("Current logged in user is " + loginUser.getUserName());

            logger.info("Creating proxy user.");
            proxyUser = UserGroupInformation.createProxyUser(userToProxy, loginUser);

            for (Token<?> token : loginUser.getTokens()) {
                proxyUser.addToken(token);
            }
        } else {
            proxyUser = UserGroupInformation.createRemoteUser(userToProxy);
        }

        logger.info("Proxied as user " + userToProxy);

        proxyUser.doAs(new PrivilegedExceptionAction<Void>() {
            @Override
            public Void run() throws Exception {
                runHive(args);
                return null;
            }
        });

    } else {
        logger.info("Not proxying. ");
        runHive(args);
    }
}

From source file:com.msopentech.odatajclient.engine.performance.PerfTestReporter.java

public static void main(final String[] args) throws Exception {
    // 1. check input directory
    final File reportdir = new File(args[0] + File.separator + "target" + File.separator + "surefire-reports");
    if (!reportdir.isDirectory()) {
        throw new IllegalArgumentException("Expected directory, got " + args[0]);
    }/*from  w  w w . j a  va  2  s  . com*/

    // 2. read test data from surefire output
    final File[] xmlReports = reportdir.listFiles(new FilenameFilter() {

        @Override
        public boolean accept(final File dir, final String name) {
            return name.endsWith("-output.txt");
        }
    });

    final Map<String, Map<String, Double>> testData = new TreeMap<String, Map<String, Double>>();

    for (File xmlReport : xmlReports) {
        final BufferedReader reportReader = new BufferedReader(new FileReader(xmlReport));
        try {
            while (reportReader.ready()) {
                String line = reportReader.readLine();
                final String[] parts = line.substring(0, line.indexOf(':')).split("\\.");

                final String testClass = parts[0];
                if (!testData.containsKey(testClass)) {
                    testData.put(testClass, new TreeMap<String, Double>());
                }

                line = reportReader.readLine();

                testData.get(testClass).put(parts[1],
                        Double.valueOf(line.substring(line.indexOf(':') + 2, line.indexOf('['))));
            }
        } finally {
            IOUtils.closeQuietly(reportReader);
        }
    }

    // 3. build XSLX output (from template)
    final HSSFWorkbook workbook = new HSSFWorkbook(new FileInputStream(args[0] + File.separator + "src"
            + File.separator + "test" + File.separator + "resources" + File.separator + XLS));

    for (Map.Entry<String, Map<String, Double>> entry : testData.entrySet()) {
        final Sheet sheet = workbook.getSheet(entry.getKey());

        int rows = 0;

        for (Map.Entry<String, Double> subentry : entry.getValue().entrySet()) {
            final Row row = sheet.createRow(rows++);

            Cell cell = row.createCell(0);
            cell.setCellValue(subentry.getKey());

            cell = row.createCell(1);
            cell.setCellValue(subentry.getValue());
        }
    }

    final FileOutputStream out = new FileOutputStream(
            args[0] + File.separator + "target" + File.separator + XLS);
    try {
        workbook.write(out);
    } finally {
        IOUtils.closeQuietly(out);
    }
}

From source file:codingchallenge.SortableChallenge.java

public static void main(String[] args) throws Exception {
    if (args.length != 2) {
        usage();/*from ww  w .ja  v a  2s  .  c  o  m*/
    }
    String productsFileName = args[0];
    String listingsFileName = args[1];

    Reader productsReader = new FileReader(productsFileName);
    Reader listingsReader = new FileReader(listingsFileName);

    new SortableChallenge(productsReader, listingsReader).run();
}

From source file:com.aestel.chemistry.openEye.fp.DistMatrix.java

public static void main(String... args) throws IOException {
    long start = System.currentTimeMillis();

    // create command line Options object
    Options options = new Options();
    Option opt = new Option("i", true, "input file [.tsv from FingerPrinter]");
    opt.setRequired(true);/* ww w . j av a2  s.  co m*/
    options.addOption(opt);

    opt = new Option("o", true, "outpur file [.tsv ");
    opt.setRequired(true);
    options.addOption(opt);

    CommandLineParser parser = new PosixParser();
    CommandLine cmd = null;
    try {
        cmd = parser.parse(options, args);
    } catch (Exception e) {
        System.err.println(e.getMessage());
        exitWithHelp(options);
    }
    args = cmd.getArgs();

    if (args.length != 0)
        exitWithHelp(options);

    String file = cmd.getOptionValue("i");
    BufferedReader in = new BufferedReader(new FileReader(file));

    file = cmd.getOptionValue("o");
    PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter(file)));

    ArrayList<Fingerprint> fps = new ArrayList<Fingerprint>();
    ArrayList<String> ids = new ArrayList<String>();
    String line;
    while ((line = in.readLine()) != null) {
        String[] parts = line.split("\t");
        if (parts.length == 3) {
            ids.add(parts[0]);
            fps.add(new ByteFingerprint(parts[2]));
        }
    }
    in.close();

    out.print("ID");
    for (int i = 0; i < ids.size(); i++) {
        out.print('\t');
        out.print(ids.get(i));
    }
    out.println();

    for (int i = 0; i < ids.size(); i++) {
        out.print(ids.get(i));
        Fingerprint fp1 = fps.get(i);

        for (int j = 0; j <= i; j++) {
            out.printf("\t%.4g", fp1.tanimoto(fps.get(j)));
        }
        out.println();
    }
    out.close();

    System.err.printf("Done %d fingerprints in %.2gsec\n", fps.size(),
            (System.currentTimeMillis() - start) / 1000D);
}