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:SystemTrayTest.java

private static List<String> readFortunes() {
    List<String> fortunes = new ArrayList<String>();
    try {/*w w  w .ja v a 2 s  .com*/
        Scanner in = new Scanner(new File("fortunes"));
        StringBuilder fortune = new StringBuilder();
        while (in.hasNextLine()) {
            String line = in.nextLine();
            if (line.equals("%")) {
                fortunes.add(fortune.toString());
                fortune = new StringBuilder();
            } else {
                fortune.append(line);
                fortune.append(' ');
            }
        }
    } catch (IOException ex) {
        ex.printStackTrace();
    }
    return fortunes;
}

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From source file:hu.sztaki.incremental.ml.streaming.imsr.MatrixVectorPairSource.java

@Override
public void invoke(Collector<Tuple2<double[][], double[][]>> out) throws Exception {
    File f = new File(path);
    if (!f.exists()) {
        System.err.println(path + " does not exist.");
        System.exit(1);//from  w  w w. ja va  2  s . co m
    }
    Scanner s = initCsvScanner(new Scanner(f));
    String firstLine = s.nextLine();
    Scanner firstLineScanner = initCsvScanner(new Scanner(firstLine));
    for (indepDim = 0; firstLineScanner.hasNext(); firstLineScanner.next(), indepDim++)
        ;
    indepDim--;
    while (s.hasNext()) {
        Array2DRowRealMatrix X = new Array2DRowRealMatrix(batchSize, indepDim);
        Array2DRowRealMatrix y = new Array2DRowRealMatrix(batchSize, 1);
        readMatricesSideBySide(s, X, y);
        out.collect(new Tuple2<double[][], double[][]>(X.getDataRef(), y.getDataRef()));
    }
    s.close();
    out.close();
}

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From source file:com.freemedforms.openreact.db.DbSchema.java

/**
 * Attempt to run a database patch.//  w w  w . ja v a2  s .  co  m
 * 
 * @param patchFilename
 * @return Success.
 * @throws SQLException
 */
public static boolean applyPatch(String patchFilename) throws SQLException {
    Connection c = Configuration.getConnection();

    String patch = null;

    Scanner scanner;
    try {
        scanner = new Scanner(new File(patchFilename)).useDelimiter("\\Z");
        patch = scanner.next();
        scanner.close();
    } catch (FileNotFoundException ex) {
        log.error(ex);
        return false;
    }

    Statement cStmt = c.createStatement();
    boolean status = false;
    try {
        log.debug("Using patch length = " + patch.length());
        cStmt.execute(patch);
        // cStmt = c.prepareStatement(patch);
        // cStmt.execute();
        log.info("Patch succeeded");
        status = true;
    } catch (NullPointerException npe) {
        log.error("Caught NullPointerException", npe);
    } catch (Throwable e) {
        log.error(e.toString());
    } finally {
        DbUtil.closeSafely(cStmt);
        DbUtil.closeSafely(c);
    }

    return status;
}

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From source file:com.alibaba.dubbo.qos.textui.TKv.java

private String filterEmptyLine(String content) {
    final StringBuilder sb = new StringBuilder();
    Scanner scanner = null;/*from  w w  w . j a v a 2s .c  o  m*/
    try {
        scanner = new Scanner(content);
        while (scanner.hasNextLine()) {
            String line = scanner.nextLine();
            if (line != null) {
                // remove extra space at line's end
                line = StringUtils.stripEnd(line, " ");
                if (line.isEmpty()) {
                    line = " ";
                }
            }
            sb.append(line).append('\n');
        }
    } finally {
        if (null != scanner) {
            scanner.close();
        }
    }

    return sb.toString();
}

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From source file:edu.gmu.isa681.ctn.EncodedChannel.java

public EncodedChannel(String name, InputStream in, int inboundCapacity, OutputStream out, int outboundCapacity)
        throws UnsupportedEncodingException {
    this.name = name;
    this.sin = new Scanner(new BufferedReader(new InputStreamReader(in, "UTF-8")));
    this.sout = new BufferedWriter(new OutputStreamWriter(out, "UTF-8"));

    startHandlers(inboundCapacity, outboundCapacity);
}

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From source file:com.it.j2ee.cache.ehcache.cluster.client1.Client1.java

@SuppressWarnings("resource")
@Test//from   w  ww .  ja v a2s .  c o m
public void demo() {
    cache = ehcacheManager.getCache(CACHE_NAME);

    // ?cache?
    String key = "foo";
    String value = "boo";
    List<Element> list = Lists.newArrayList(new Element(key, value), new Element("foo1", "value1"),
            new Element("22", "5555555"));

    put(key, value);
    Object result = get(key);
    assertThat(result).isEqualTo(value);

    cache.putAll(list);
    assertThat(cache.getSize()).isEqualTo(3);

    System.out.println("Cluster1: (q?)");

    int i = 0;
    do {
        // cluster2cluster1??
        System.out.println("cluster1-key:");
        if ("q".equals(key)) {
            System.exit(0);
        }
        key = new Scanner(System.in).nextLine();
        System.out.println("cluster1-value:");
        value = new Scanner(System.in).nextLine();
        put(key, value);

        // cluster2??
        System.out.println("?cluster2-key:");
        key = new Scanner(System.in).nextLine();
        result = get(key);
        System.out.println("?cluster2-value:" + result);
        i++;
    } while (i < 10);

    // ???
    new Scanner(System.in).nextLine();

}

---

From source file:BitLottoVerify.java

public static Map<String, Long> getPaymentsBlockExplorer(String addr) throws Exception {
    URL u = new URL("http://blockexplorer.com/address/" + addr);
    Scanner scan = new Scanner(u.openStream());

    TreeMap<String, Long> map = new TreeMap<String, Long>();

    while (scan.hasNextLine()) {
        String line = scan.nextLine();
        StringTokenizer stok = new StringTokenizer(line, "\"#");
        while (stok.hasMoreTokens()) {
            String token = stok.nextToken();
            if (token.startsWith("/tx/")) {
                String tx = token.substring(4);
                line = scan.nextLine();//w w  w  .j ava  2  s . c o  m
                line = scan.nextLine();
                StringTokenizer stok2 = new StringTokenizer(line, "<>");
                stok2.nextToken();
                double amt = Double.parseDouble(stok2.nextToken());
                long amt_l = (long) Math.round(amt * 1e8);
                map.put(tx, amt_l);

            }
        }
    }
    return map;
}

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From source file:com.mgmtp.perfload.perfalyzer.util.MarkersReader.java

public List<Marker> readMarkers() throws IOException {
    Map<String, Marker> markers = new LinkedHashMap<>();

    StrTokenizer tokenizer = StrTokenizer.getCSVInstance();
    tokenizer.setDelimiterChar(DELIMITER);

    try (FileInputStream fis = new FileInputStream(inputFile)) {

        for (Scanner scanner = new Scanner(fis.getChannel()); scanner.hasNext();) {
            String line = scanner.nextLine();
            if (line.startsWith("#")) {
                continue;
            }//from  w  w  w  .ja va  2s  . c  o m

            tokenizer.reset(line);

            List<String> tokenList = tokenizer.getTokenList();

            if (MARKER.equals(tokenList.get(COL_MARKER))) {
                // no whitespace allowed in marker in order to avoid issues in HTML
                String markerName = tokenList.get(COL_MARKER_NAME).replaceAll("\\s+", "_");
                String markerType = tokenList.get(COL_MARKER_TYPE);
                long timeMillis = Long.parseLong(tokenList.get(COL_TIMESTAMP));

                switch (markerType) {
                case MARKER_LEFT: {
                    Marker marker = new Marker(markerName);
                    markers.put(markerName, marker);
                    marker.setLeftMillis(timeMillis);
                    break;
                }
                case MARKER_RIGHT: {
                    Marker marker = markers.get(markerName);
                    marker.setRightMillis(timeMillis);
                    break;
                }
                default:
                    throw new IllegalStateException("Invalid marker type: " + markerType);
                }
            }
        }

        return markers.values().stream().map(marker -> {
            marker.calculateDateTimeFields(testStart);
            return marker;
        }).collect(toList());
    }
}

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From source file:mini_mirc_client.Mini_mirc_client.java

private static void perform(TTransport transport, miniIRC.Client client) throws TException {
    //private static void perform () throws TException {
    boolean exit = false;
    Scanner input = new Scanner(System.in);

    generateUname();/*from  w ww  .jav  a  2  s. c om*/
    //auto-regis
    int res;
    synchronized (transport) {
        transport.open();
        res = client.regUser(username);
        transport.close();

        if (res == 0) {
            System.out.println("# Registered user: " + username);
        } else {
            System.out.println("!!!: Unidentified error on register!");

            generateUname();
            transport.open();
            res = client.regUser(username);
            if (res == 0)
                System.out.println("# Registered user: " + username);
            transport.close();
        }
    }

    while (!exit) {
        System.out.print("> ");
        String command = input.nextLine();

        String resSplit[] = command.split(" ", 2);
        String commandWord = resSplit[0].toUpperCase();

        synchronized (transport) {
            transport.open();

            switch (commandWord) {
            case "/NICK":
                System.out.println("# Registering user: " + resSplit[1]);
                res = client.regUser(resSplit[1]);

                if (res == 0) {
                    System.out.println("# Registered user: " + resSplit[1]);
                    username = resSplit[1];
                } else if (res == 2) {
                    System.out.println("# Login as user: " + resSplit[1]);
                    username = resSplit[1];
                } else {
                    System.out.println("!!!: Unidentified error on register!");
                }
                break;
            case "/JOIN":
                System.out.println("# Checking channel: " + resSplit[1]);

                res = client.join(username, resSplit[1]);
                if (res == 0 || res == 2) {
                    System.out.println("# Joined channel: " + resSplit[1]);
                } else {
                    if (res == 1) {
                        System.out.println("!!!: Channel " + resSplit[1] + " already joined!");
                    } else {
                        System.out.println("!!!: code #" + res + " on channel join");
                    }
                }

                break;
            case "/LEAVE":
                if (username.isEmpty()) {
                    System.out.println("!!!: Unregistered user");
                } else {
                    System.out.println("# " + username + " exiting channel " + resSplit[1]);
                    res = client.leave(username, resSplit[1]);
                    if (res == 0)
                        System.out.println("# Success");
                    else
                        System.out.println("!!!: Channel error!");
                }
                break;

            case "/EXIT":
                System.out.println("# " + username + " closing...");

                res = client.exit(username);
                if (res == 0) {
                    System.out.println("# Exit success");
                    username = "";
                    exit = true;
                    update = false;
                } else {
                    System.out.println("!!!: Channel error! Error code #" + res);
                }
                break;

            default:
                if (resSplit[0].startsWith("@")) { // message to channel 
                    res = client.message(username, resSplit[0].substring(1), resSplit[1]);
                    if (res == 0) {
                        System.out.println("# Msg to " + resSplit[0].substring(1) + " sent");
                    } else if (res == 2) {
                        System.out.println("!!!: Not member of channel " + resSplit[0].substring(1));
                    }
                } else {

                    res = client.message(username, "*", command);
                    if (res == 0) {
                        System.out.println("# Msg to all channels sent");
                    } else {
                        System.out.println("!!!: Connection problemo?");
                    }

                }
                break;
            }
            transport.close();

        }
        showMsg();
    }

}

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From source file:nu.yona.server.rest.RestClientErrorHandler.java

private static String convertStreamToString(InputStream is) {
    @SuppressWarnings("resource") // It's not on us to close this stream
    java.util.Scanner s = new Scanner(is).useDelimiter("\\A");
    return s.hasNext() ? s.next() : "";
}

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