Example usage for java.util Scanner Scanner

Introduction

In this page you can find the example usage for java.util Scanner Scanner.

Prototype

public Scanner(ReadableByteChannel source) 

Source Link

Document

Constructs a new Scanner that produces values scanned from the specified channel.

Usage

From source file:com.joliciel.talismane.extensions.standoff.ConllFileSplitter.java

/**
 * @param args/*w  w  w. j  a  v a2s . c o  m*/
 * @throws IOException 
 * @throws UnsupportedEncodingException 
 */
public void split(String filePath, int startIndex, int sentencesPerFile, String encoding) {
    try {
        String fileBase = filePath;
        if (filePath.indexOf('.') > 0)
            fileBase = filePath.substring(0, filePath.lastIndexOf('.'));
        File file = new File(filePath);
        Scanner scanner = new Scanner(
                new BufferedReader(new InputStreamReader(new FileInputStream(file), encoding)));

        boolean hasSentence = false;
        int currentFileIndex = startIndex;

        int sentenceCount = 0;
        Writer writer = null;
        while (scanner.hasNextLine()) {
            String line = scanner.nextLine();
            if (line.length() == 0 && !hasSentence) {
                continue;
            } else if (line.length() == 0) {
                writer.write("\n");
                writer.flush();
                hasSentence = false;
            } else {
                if (!hasSentence) {
                    hasSentence = true;
                    sentenceCount++;
                }
                if (writer == null || sentenceCount % sentencesPerFile == 0) {
                    if (writer != null) {
                        writer.flush();
                        writer.close();
                    }
                    File outFile = new File(fileBase + "_" + df.format(currentFileIndex) + ".tal");
                    outFile.delete();
                    outFile.createNewFile();
                    writer = new BufferedWriter(
                            new OutputStreamWriter(new FileOutputStream(outFile, false), encoding));
                    currentFileIndex++;
                    hasSentence = false;
                }

                writer.write(line + "\n");
                writer.flush();
            }
        }
        if (writer != null) {
            writer.flush();
            writer.close();
        }
    } catch (IOException e) {
        LogUtils.logError(LOG, e);
        throw new RuntimeException(e);
    }
}

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From source file:com.acme.TopTagsTupleTest.java

@Test
public void tags() throws IOException {

    final Broadcaster<Object> broadcaster = SerializedBroadcaster.create();

    Processor processor = new TopTags(1, 10);
    Stream<?> outputStream = processor.process(broadcaster);

    outputStream.consume(new Consumer<Object>() {
        @Override// w w  w .j a v a  2  s .co  m
        public void accept(Object o) {
            System.out.println("processed : " + o);
        }
        //TODO - expect
        //            processed : {"id":"55786760-7472-065d-8e62-eb83260948a4","timestamp":1422399628134,"hashtag":"AndroidGames","count":1}
        //            processed : {"id":"bd99050f-abfa-a239-c09a-f2fe721daafb","timestamp":1422399628182,"hashtag":"Android","count":1}
        //            processed : {"id":"10ce993c-fd57-322d-efa1-16f810918187","timestamp":1422399628184,"hashtag":"GameInsight","count":1}
    });

    ClassPathResource resource = new ClassPathResource("tweets.json");
    Scanner scanner = new Scanner(resource.getInputStream());
    while (scanner.hasNext()) {
        String tweet = scanner.nextLine();
        broadcaster.onNext(tweet);
        //simulateLatency();
    }
    //System.in.read();

}

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From source file:com.thalesgroup.sonar.plugins.tusar.utils.Utils.java

/**
 * Parse a csv file containing user metrics information (name, type, domain)
 * @param csvFile The path of the initialisationFile
 * @return a list of String[] which contains the name of the metrics, its type and its domain
 * @throws FileNotFoundException//from   w  w w  . j  a va 2 s .  com
 */
public static List<String[]> parseIniFile(File csvFile) throws FileNotFoundException {
    List<String[]> metrics = new ArrayList<String[]>();
    if (!csvFile.getName().endsWith(Constants.CSV_EXTENSION)) {
        logger.warn(csvFile + " is not a CSVFile");
        return metrics;
    }
    Scanner scanner = new Scanner(csvFile);
    scanIniContent(scanner, metrics);
    return metrics;
}

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From source file:isbnfilter.ISBNFilter.java

/**
 * This Function reads isbn.txt file and creates every single isbn to a
 * CBook object/*from   w w w. ja  va 2s .  c  o  m*/
 *
 * @param parent stage where is beeing called
 * @return strng whit isbn separated by commas
 * @throws FileNotFoundException
 * @throws IOException
 */
public List<String[]> readFile(Stage parent) throws FileNotFoundException, IOException {
    FileChooser fileChooser = new FileChooser();
    String[] separated = null;
    fileChooser.setTitle("Open Resource File");
    File selectedFile = fileChooser.showOpenDialog(parent);
    List<String[]> everything = new ArrayList();
    CSVParser parser = new CSVParser(',', '"');
    String[] parsedLine;

    /*CSVReader reader = null;
    try
    {
    //Get the CSVReader instance with specifying the delimiter to be used
    reader = new CSVReader(new FileReader(selectedFile),',','"');
    String [] nextLine;
    //Read one line at a time
    while ((nextLine = reader.readNext()) != null) 
    {
        everything.add(nextLine);
    }
    }
    catch (Exception e) {
    e.printStackTrace();
    }
    finally {
    try {
        reader.close();
    } catch (IOException e) {
        e.printStackTrace();
    }
    }*/

    if (selectedFile != null) {
        Scanner scanner = new Scanner(selectedFile);
        BufferedReader br = new BufferedReader(new FileReader(selectedFile.getAbsoluteFile()));
        try {
            StringBuilder sb = new StringBuilder();
            br.readLine();
            String line = br.readLine();
            while (line != null) {
                if (line.charAt(0) == '"') //Algunos traen " al inicio.. los que traen, se los quito   
                    line = line.substring(1);

                separated = line.split(",(?=([^\"]*\"[^\"]*\")*[^\"]*$)");
                //separated = line.split(","); //Separo todos los datos

                everything.add(separated);
                line = br.readLine();
            }
            //everything = sb.toString();
        } finally {
            br.close();
        }

    }

    return everything;

}

---

From source file:de.bley.word.menu.Menue.java

/**
 * Die Oberflaeche startet in der Console.
 *///from ww w.j  a v  a  2  s  .  c  om
@Override
public void showMenue() {
    zuordnung = PropertieManager.getInstance().getZuordnung();
    boolean run = true;

    final Scanner scan = new Scanner(System.in);
    while (run) {

        try {
            showFiles(scan);

            zuordnung.getEingabe().readFile();
            final int input = scan.nextInt();

            switch (input) {
            case 0:
                readFile();
                break;
            case 1:
                writeFrile(scan);
                break;
            default:
                run = false;
                break;
            }
        } catch (Exception e) {
            run = false;

        }

    }
}

---

From source file:com.hortonworks.registries.storage.tool.shell.ShellMigrationExecutor.java

@Override
public void execute(Connection connection) throws SQLException {
    String scriptLocation = this.shellScriptResource.getLocationOnDisk();
    try {// www . ja v a  2  s  .co  m
        List<String> args = new ArrayList<String>();
        args.add(scriptLocation);
        ProcessBuilder builder = new ProcessBuilder(args);
        builder.redirectErrorStream(true);
        Process process = builder.start();
        Scanner in = new Scanner(process.getInputStream());
        System.out.println(StringUtils.repeat("+", 200));
        while (in.hasNextLine()) {
            System.out.println(in.nextLine());
        }
        int returnCode = process.waitFor();
        System.out.println(StringUtils.repeat("+", 200));
        if (returnCode != 0) {
            throw new FlywayException("script exited with value : " + returnCode);
        }
    } catch (Exception e) {
        LOG.error(e.toString());
        // Only if SQLException or FlywaySqlScriptException is thrown flyway will mark the migration as failed in the metadata table
        throw new SQLException(String.format("Failed to run script \"%s\", %s", scriptLocation, e.getMessage()),
                e);
    }
}

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From source file:com.liferay.ide.project.core.modules.BladeCLI.java

public static String[] execute(String args) throws BladeCLIException {
    IPath bladeCLIPath = getBladeCLIPath();

    if (FileUtil.notExists(bladeCLIPath)) {
        throw new BladeCLIException("Could not get blade cli jar.");
    }/*from w w w  .  j a  v a 2s  .co m*/

    Project project = new Project();
    Java javaTask = new Java();

    javaTask.setProject(project);
    javaTask.setFork(true);
    javaTask.setFailonerror(true);
    javaTask.setJar(bladeCLIPath.toFile());
    javaTask.setArgs(args);

    DefaultLogger logger = new DefaultLogger();

    project.addBuildListener(logger);
    List<String> lines = new ArrayList<>();
    int returnCode = 0;

    try (StringBufferOutputStream out = new StringBufferOutputStream();
            PrintStream printStream = new PrintStream(out)) {
        logger.setOutputPrintStream(printStream);

        logger.setMessageOutputLevel(Project.MSG_INFO);

        returnCode = javaTask.executeJava();

        try (Scanner scanner = new Scanner(out.toString())) {
            while (scanner.hasNextLine()) {
                lines.add(scanner.nextLine().replaceAll(".*\\[null\\] ", ""));
            }
        }

        boolean hasErrors = false;

        StringBuilder errors = new StringBuilder();

        for (String line : lines) {
            if (line.startsWith("Error")) {
                hasErrors = true;
            } else if (hasErrors) {
                errors.append(line);
            }
        }

        if ((returnCode != 0) || hasErrors) {
            throw new BladeCLIException(errors.toString());
        }

    } catch (IOException e) {
        throw new BladeCLIException(e.getMessage(), e);
    }
    return lines.toArray(new String[0]);
}

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From source file:com.clutch.ClutchConf.java

public static JSONObject getConf() {
    if (conf != null) {
        return conf;
    }/*w  w w  . java2s. c  o  m*/

    String versionName = "";
    try {
        versionName = context.getPackageManager().getPackageInfo(context.getPackageName(), 0).versionName;
    } catch (NameNotFoundException e) {
        Log.e(TAG, "Could not get bundle version");
        e.printStackTrace();
    }

    // First we look for a saved plist file that ClutchSync creates
    File dir = context.getDir("_clutch" + versionName, 0);
    File clutch = null;
    for (File f : dir.listFiles()) {
        if (f.getName().equals("clutch.json")) {
            clutch = f;
            break;
        }
    }

    // If we found it, then parse it and set ourselves, then return the data.
    if (clutch != null) {
        try {
            BufferedReader br = new BufferedReader(new FileReader(clutch));
            StringBuffer sb = new StringBuffer();
            String line = br.readLine();
            while (line != null) {
                sb.append(line);
                line = br.readLine();
            }
            conf = new JSONObject(sb.toString());
            br.close();
            return conf;
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (JSONException e) {
            e.printStackTrace();
        }
    }

    // If we didn't find it in the filesystem, check in the assets
    final AssetManager mgr = context.getAssets();
    String asset = ClutchUtils.findAsset(mgr, "./", "clutch.json");
    if (asset == null) {
        conf = new JSONObject();
        return conf;
    }

    try {
        InputStream fin = mgr.open(asset);
        String data = new Scanner(fin).useDelimiter("\\A").next();
        conf = new JSONObject(data);
        return conf;
    } catch (java.util.NoSuchElementException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    } catch (JSONException e) {
        e.printStackTrace();
    }

    conf = new JSONObject();

    return conf;
}

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From source file:edu.utah.further.core.util.text.CsvLineScanner.java

@Override
public List<String> parse(final String line) {
    final List<String> tokens = CollectionUtil.newList();
    if (StringUtils.isNotBlank(line)) {
        try (final Scanner scanner = new Scanner(line)) {
            scanner.useDelimiter(getDelimiter());
            while (scanner.hasNext()) {
                tokens.add(scanner.next());
            }/*  ww w .  j av  a  2  s.  c om*/
        }

    }
    return tokens;
}

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