Example usage for java.util Scanner hasNext

Introduction

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

Prototype

public boolean hasNext()

Source Link

Document

Returns true if this scanner has another token in its input.

Usage

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//from w  ww  . j a v a 2s .c  o 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();

}

From source file:ng.logentries.logs.LogReader.java

public <T extends LogEntryData> List<T> readLogs(Class<? extends LogEntryData> cls, Account account,
        FilterOptions options) throws Exception {
    List<T> list = new ArrayList<>();
    LogEntryData instance = cls.newInstance();
    CloseableHttpClient httpClient = HttpClientBuilder.create().build();
    try {/*from w ww  . j av a2  s  .  co  m*/
        URIBuilder uriBuilder = new URIBuilder().setScheme("https").setHost("pull.logentries.com/")
                .setPath(account.getAccessKey() + "/hosts/" + account.getLogSetName() + "/"
                        + account.getLogName() + "/");
        if (options.getLimit() != -1) {
            uriBuilder.addParameter("limit", "" + options.getLimit());
        }
        uriBuilder.addParameter("filter", instance.getPattern());
        if (options.getsTime() != -1) {
            uriBuilder.addParameter("start", "" + options.getsTime());
        }
        if (options.geteTime() != -1) {
            uriBuilder.addParameter("end", "" + options.geteTime());
            System.out.println(options.geteTime());
        }
        HttpGet get = new HttpGet(uriBuilder.build());
        HttpResponse httpResponse = httpClient.execute(get);
        HttpEntity entity = httpResponse.getEntity();
        Scanner in = new Scanner(entity.getContent());
        while (in.hasNext()) {
            T parse = (T) LogDataMapper.parse(in.nextLine(), cls);
            list.add(parse);
            //System.out.println(parse);
        }
    } catch (Exception e) {
        System.out.println("Error while trying to read logs: " + e);
    } finally {
        if (httpClient != null) {
            httpClient.close();
        }
    }

    return list;
}

From source file:org.cyclop.service.importer.intern.SerialQueryImporter.java

@Override
void execImport(Scanner scanner, ResultWriter resultWriter, StatsCollector status, ImportConfig config) {
    while (scanner.hasNext()) {
        String nextStr = StringUtils.trimToNull(scanner.next());
        if (nextStr == null) {
            continue;
        }/*from   www.j  a  va 2s.c om*/
        CqlQuery query = new CqlQuery(CqlQueryType.UNKNOWN, nextStr);
        long startTime = System.currentTimeMillis();
        try {
            LOG.debug("Executing: {}", query);
            queryService.executeSimple(query, config.isUpdateHistory());
            resultWriter.success(query, System.currentTimeMillis() - startTime);
            status.success.getAndIncrement();
        } catch (QueryException e) {
            status.error.getAndIncrement();
            LOG.debug(e.getMessage());
            LOG.trace(e.getMessage(), e);
            resultWriter.error(query, e, System.currentTimeMillis() - startTime);

            if (!config.isContinueWithErrors()) {
                LOG.debug("Breaking import due to an error");
                break;
            }
        }
    }
}

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);/*  ww w .j a v  a  2  s  .c om*/
    }
    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();
}

From source file:io.gumga.presentation.api.voice.VoiceReceiverAPI.java

private String convertStreamToString(java.io.InputStream is) {
    java.util.Scanner s = new java.util.Scanner(is).useDelimiter("\\A");
    return s.hasNext() ? s.next() : "";
}

From source file:key.access.manager.HttpHandler.java

public String connect(String url, ArrayList data) throws IOException {
    try {//  ww w.  j av  a2s .  com
        // open a connection to the site
        URL connectionUrl = new URL(url);
        URLConnection con = connectionUrl.openConnection();
        // activate the output
        con.setDoOutput(true);
        PrintStream ps = new PrintStream(con.getOutputStream());
        // send your parameters to your site
        for (int i = 0; i < data.size(); i++) {
            ps.print(data.get(i));
            //System.out.println(data.get(i));
            if (i != data.size() - 1) {
                ps.print("&");
            }
        }

        // we have to get the input stream in order to actually send the request
        InputStream inStream = con.getInputStream();
        Scanner s = new Scanner(inStream).useDelimiter("\\A");
        String result = s.hasNext() ? s.next() : "";
        System.out.println(result);

        // close the print stream
        ps.close();
        return result;
    } catch (MalformedURLException e) {
        e.printStackTrace();
        return "error";
    } catch (IOException e) {
        e.printStackTrace();
        return "error";
    }
}

From source file:org.mcxiaoke.commons.http.util.URIUtilsEx.java

/**
 * Adds all parameters within the Scanner to the list of
 * <code>parameters</code>, as encoded by <code>encoding</code>. For
 * example, a scanner containing the string <code>a=1&b=2&c=3</code> would
 * add the {@link NameValuePair NameValuePairs} a=1, b=2, and c=3 to the
 * list of parameters.//w ww.  ja  v a  2  s  . co m
 * 
 * @param parameters
 *            List to add parameters to.
 * @param scanner
 *            Input that contains the parameters to parse.
 * @param charset
 *            Encoding to use when decoding the parameters.
 */
public static void parse2(final Map<String, String> parameters, final Scanner scanner, final String charset) {
    scanner.useDelimiter(PARAMETER_SEPARATOR);
    while (scanner.hasNext()) {
        String key = null;
        String value = null;
        String token = scanner.next();
        int i = token.indexOf(NAME_VALUE_SEPARATOR);
        if (i != -1) {
            key = decodeFormFields(token.substring(0, i).trim(), charset);
            value = decodeFormFields(token.substring(i + 1).trim(), charset);
        } else {
            key = decodeFormFields(token.trim(), charset);
        }
        parameters.put(key, value);
    }
}

From source file:com.sonicle.webtop.core.versioning.SqlScript.java

private void readFile(InputStreamReader readable) throws IOException {
    this.statements = new ArrayList<>();
    String lines[] = null;/*from   w  ww  . j  a v  a 2 s . c  o m*/
    StringBuilder sbsql = null;

    Scanner s = new Scanner(readable);
    s.useDelimiter("(;( )?(\r)?\n)");
    while (s.hasNext()) {
        String block = s.next();
        block = StringUtils.replace(block, "\r", "");
        if (!StringUtils.isEmpty(block)) {
            // Remove remaining ; at the end of the block (only if this block is the last one)
            if (!s.hasNext() && StringUtils.endsWith(block, ";"))
                block = StringUtils.left(block, block.length() - 1);

            sbsql = new StringBuilder();
            lines = StringUtils.split(block, "\n");
            for (String line : lines) {
                if (CommentLine.matches(line))
                    continue;
                sbsql.append(StringUtils.trim(line));
                sbsql.append(" ");
            }
            if (sbsql.length() > 0)
                statements.add(sbsql.toString());
        }
    }
}

From source file:com.currencyfair.minfraud.MinFraudImpl.java

private Map<String, String> parseValueMap(String responseValues) {
    Map<String, String> pairs = new LinkedHashMap<>();
    Scanner scanner = new Scanner(responseValues).useDelimiter("[;=]");
    try {/*  w  w w  .  j  a  v  a  2  s . c  o  m*/
        while (scanner.hasNext()) {
            pairs.put(scanner.next(), scanner.next());
        }
    } catch (NoSuchElementException x) {
        LOG.warn("Unbalanced response received from remote: {}", responseValues);
    }
    return ValueUtils.removeEmptyValues(pairs);
}

From source file:hammingcode.HammingCode.java

ArrayList<String> readFile(String filename) throws FileNotFoundException {
    Scanner input = new Scanner(new File(filename));
    ArrayList<String> inputList = new ArrayList();
    while (input.hasNext()) {
        inputList.add(input.nextLine());
    }// ww w.j  av a  2s.  c o m
    return inputList;
}