Example usage for java.util Scanner close

Introduction

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

Prototype

public void close() 

Source Link

Document

Closes this scanner.

Usage

From source file:css.variable.converter.CSSVariableConverter.java

/**
 * Collect variables from main file//from   w w w.ja v  a  2  s.c o m
 *
 * @param mainFile File with ":root" identifier for variables.
 * @return
 */
private static ArrayList<CSSVar> getCSSVars(File mainFile, String identifier) {
    ArrayList<CSSVar> cSSVarsList = new ArrayList<CSSVar>();
    boolean isInVarDefinition = false;
    boolean isFinished = false;

    try {
        Scanner fileReader = new Scanner(mainFile);

        // Loop until end of text file, or outside of :root 
        while (fileReader.hasNextLine() && !isFinished) {
            String currentLine = fileReader.nextLine();

            if (isInVarDefinition) {

                // I identify all of my variables with --
                if (currentLine.contains("--")) {

                    int varNameBegIndex = currentLine.indexOf("--");
                    int varNameEndIndex = currentLine.indexOf(":");
                    String varName = currentLine.substring(varNameBegIndex, varNameEndIndex);

                    int varValueBegIndex = currentLine.indexOf(":") + 1;
                    int varValueEndIndex = currentLine.indexOf(";");
                    String varValue = currentLine.substring(varValueBegIndex, varValueEndIndex);

                    varName = varName.trim();
                    varValue = varValue.trim();
                    cSSVarsList.add(new CSSVar(varName, varValue));
                }

                if (currentLine.contains("}")) {
                    isInVarDefinition = false;
                    isFinished = true;
                }
            } else {
                if (currentLine.contains(identifier)) {
                    isInVarDefinition = true;
                }
            }

        }
        fileReader.close();
    } catch (FileNotFoundException ex) {
        Logger.getLogger(CSSVariableConverter.class.getName()).log(Level.SEVERE, null, ex);
    }

    return cSSVarsList;
}

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From source file:com.joliciel.csvLearner.features.NormalisationLimitReader.java

private void readCSVFile(InputStream csvInputStream, Map<String, Float> featureToMaxMap) {
    Scanner scanner = new Scanner(csvInputStream, "UTF-8");
    try {/*from w  w  w  .j  av a  2 s  . co m*/
        boolean firstLine = true;
        while (scanner.hasNextLine()) {
            String line = scanner.nextLine();
            if (!firstLine) {
                List<String> cells = CSVFormatter.getCSVCells(line);
                String featureName = cells.get(0);
                float maxValue = Float.parseFloat(cells.get(1));
                featureToMaxMap.put(featureName, maxValue);
            }
            firstLine = false;
        }
    } finally {
        scanner.close();
    }
}

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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  .j a  va2  s  .  com
    }
    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:io.proleap.cobol.preprocessor.sub.document.impl.CobolDocumentParserListenerImpl.java

protected String buildLines(final String text, final String linePrefix) {
    final StringBuffer sb = new StringBuffer(text.length());
    final Scanner scanner = new Scanner(text);
    boolean firstLine = true;

    while (scanner.hasNextLine()) {
        final String line = scanner.nextLine();

        if (!firstLine) {
            sb.append(CobolPreprocessor.NEWLINE);
        }/*from ww  w  . j ava  2 s . c  om*/

        sb.append(linePrefix + CobolPreprocessor.WS + line.trim());
        firstLine = false;
    }

    scanner.close();
    return sb.toString();
}

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From source file:eu.cassandra.utils.Utils.java

/**
 * This function is used when the user has already tracked the electrical
 * appliances installed in the installation. He can used them as a base case
 * and extend it with any additional ones that may be found during the later
 * stages of analysis of the consumption.
 * // w ww.ja  v a  2s .  c o m
 * @param filename
 *          The filename of the file containing the appliances.
 * @return
 *         A list of appliances
 * @throws FileNotFoundException
 */
public static ArrayList<Appliance> appliancesFromFile(String filename) throws FileNotFoundException {
    // Read appliance file and start appliance parsing
    File file = new File(filename);
    Scanner input = new Scanner(file);

    ArrayList<Appliance> appliances = new ArrayList<Appliance>();

    String nextLine;
    String[] line;

    while (input.hasNextLine()) {
        nextLine = input.nextLine();
        line = nextLine.split(",");
        String name = line[0];
        String activity = line[1];

        if (activity.contains("Standby") == false && activity.contains("Refrigeration") == false) {

            double p = Double.parseDouble(line[2]);
            double q = Double.parseDouble(line[3]);

            // For each appliance found in the file, an temporary Appliance
            // Entity is created.
            appliances.add(new Appliance(name, activity, p, q, 0, 100));

        }
    }

    System.out.println("Appliances:" + appliances.size());

    input.close();

    return appliances;
}

---

From source file:azkaban.jobtype.ReportalHiveRunner.java

@Override
protected void runReportal() throws Exception {
    System.out.println("Reportal Hive: Setting up Hive");
    HiveConf conf = new HiveConf(SessionState.class);

    if (System.getenv("HADOOP_TOKEN_FILE_LOCATION") != null) {
        conf.set("mapreduce.job.credentials.binary", System.getenv("HADOOP_TOKEN_FILE_LOCATION"));
    }/*from  w w  w .j a v  a2  s.c  om*/

    File tempTSVFile = new File("./temp.tsv");
    OutputStream tsvTempOutputStream = new BoundedOutputStream(
            new BufferedOutputStream(new FileOutputStream(tempTSVFile)), outputCapacity);
    PrintStream logOut = System.out;

    // NOTE: It is critical to do this here so that log4j is reinitialized
    // before any of the other core hive classes are loaded
    // criccomini@linkedin.com: I disabled this because it appears to swallow
    // all future logging (even outside of hive).
    // SessionState.initHiveLog4j();

    String orig = HiveConf.getVar(conf, HiveConf.ConfVars.HIVEAUXJARS);

    CliSessionState sessionState = new CliSessionState(conf);
    sessionState.in = System.in;
    sessionState.out = new PrintStream(tsvTempOutputStream, true, "UTF-8");
    sessionState.err = new PrintStream(logOut, true, "UTF-8");

    OptionsProcessor oproc = new OptionsProcessor();

    // Feed in Hive Args
    String[] args = buildHiveArgs();
    if (!oproc.process_stage1(args)) {
        throw new Exception("unable to parse options stage 1");
    }

    if (!oproc.process_stage2(sessionState)) {
        throw new Exception("unable to parse options stage 2");
    }

    // Set all properties specified via command line
    for (Map.Entry<Object, Object> item : sessionState.cmdProperties.entrySet()) {
        conf.set((String) item.getKey(), (String) item.getValue());
    }

    SessionState.start(sessionState);

    String expanded = expandHiveAuxJarsPath(orig);
    if (orig == null || orig.equals(expanded)) {
        System.out.println("Hive aux jars variable not expanded");
    } else {
        System.out.println("Expanded aux jars variable from [" + orig + "] to [" + expanded + "]");
        HiveConf.setVar(conf, HiveConf.ConfVars.HIVEAUXJARS, expanded);
    }

    if (!ShimLoader.getHadoopShims().usesJobShell()) {
        // hadoop-20 and above - we need to augment classpath using hiveconf
        // components
        // see also: code in ExecDriver.java
        ClassLoader loader = conf.getClassLoader();
        String auxJars = HiveConf.getVar(conf, HiveConf.ConfVars.HIVEAUXJARS);

        System.out.println("Got auxJars = " + auxJars);

        if (StringUtils.isNotBlank(auxJars)) {
            loader = Utilities.addToClassPath(loader, StringUtils.split(auxJars, ","));
        }
        conf.setClassLoader(loader);
        Thread.currentThread().setContextClassLoader(loader);
    }

    CliDriver cli = new CliDriver();
    int returnValue = 0;
    String prefix = "";

    returnValue = cli.processLine("set hive.cli.print.header=true;");
    String[] queries = jobQuery.split("\n");
    for (String line : queries) {
        if (!prefix.isEmpty()) {
            prefix += '\n';
        }
        if (line.trim().endsWith(";") && !line.trim().endsWith("\\;")) {
            line = prefix + line;
            line = injectVariables(line);
            System.out.println("Reportal Hive: Running Hive Query: " + line);
            System.out.println("Reportal Hive: HiveConf HIVEAUXJARS: "
                    + HiveConf.getVar(conf, HiveConf.ConfVars.HIVEAUXJARS));
            returnValue = cli.processLine(line);
            prefix = "";
        } else {
            prefix = prefix + line;
            continue;
        }
    }

    tsvTempOutputStream.close();

    // convert tsv to csv and write it do disk
    System.out.println("Reportal Hive: Converting output");
    InputStream tsvTempInputStream = new BufferedInputStream(new FileInputStream(tempTSVFile));
    Scanner rowScanner = new Scanner(tsvTempInputStream);
    PrintStream csvOutputStream = new PrintStream(outputStream);
    while (rowScanner.hasNextLine()) {
        String tsvLine = rowScanner.nextLine();
        // strip all quotes, and then quote the columns
        csvOutputStream.println("\"" + tsvLine.replace("\"", "").replace("\t", "\",\"") + "\"");
    }
    rowScanner.close();
    csvOutputStream.close();

    // Flush the temp file out
    tempTSVFile.delete();

    if (returnValue != 0) {
        throw new Exception("Hive query finished with a non zero return code");
    }

    System.out.println("Reportal Hive: Ended successfully");
}

---

From source file:gov.usgs.cida.coastalhazards.rest.data.util.MetadataUtilTest.java

private String loadResourceAsString(String fileName) throws IOException {
    Scanner scanner = new Scanner(getClass().getClassLoader().getResourceAsStream(fileName));
    String contents = scanner.useDelimiter("\\A").next();
    scanner.close();
    return contents;
}

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From source file:edu.ucuenca.authorsrelatedness.Distance.java

public synchronized String Http(String s) throws SQLException, IOException {

    String get = Cache.getInstance().get(s);
    String resp = "";
    if (get != null) {
        //System.out.print(".");
        resp = get;//ww w. ja v a2  s . c om
    } else {
        final URL url = new URL(s);
        final URLConnection connection = url.openConnection();
        connection.setConnectTimeout(60000);
        connection.setReadTimeout(60000);
        connection.addRequestProperty("User-Agent",
                "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:44.0) Gecko/20100101 Firefox/44.0");
        connection.addRequestProperty("Accept",
                "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8");
        final Scanner reader = new Scanner(connection.getInputStream(), "UTF-8");
        while (reader.hasNextLine()) {
            final String line = reader.nextLine();
            resp += line + "\n";
        }
        reader.close();

        Cache.getInstance().put(s, resp);
    }

    return resp;
}

---

From source file:edu.ucuenca.authorsrelatedness.Distance.java

public synchronized String Http2(String s, Map<String, String> mp) throws SQLException, IOException {
    String md = s + mp.toString();
    String get = Cache.getInstance().get(md);
    String resp = "";
    if (get != null) {
        resp = get;/*from w w  w .  j av a2 s .  co  m*/
    } else {
        HttpClient client = new HttpClient();
        PostMethod method = new PostMethod(s);
        method.getParams().setContentCharset("utf-8");

        //Add any parameter if u want to send it with Post req.
        for (Entry<String, String> mcc : mp.entrySet()) {
            method.addParameter(mcc.getKey(), mcc.getValue());
        }

        int statusCode = client.executeMethod(method);

        if (statusCode != -1) {
            InputStream in = method.getResponseBodyAsStream();
            final Scanner reader = new Scanner(in, "UTF-8");
            while (reader.hasNextLine()) {
                final String line = reader.nextLine();
                resp += line + "\n";
            }
            reader.close();
            Cache.getInstance().put(md, resp);

        }

    }

    return resp;
}

---

From source file:com.mucommander.job.FindFileJob.java

private boolean fileContainsString0(AbstractFile f) {
    //Profiler.start("check_old");
    if (fileContent == null || fileContent.isEmpty()) {
        return true;
    }/*from w w w .  j a  v  a2 s . c om*/
    if (f.isDirectory()) {
        return false;
    }
    Scanner in = null;
    boolean result = false;
    try {
        in = new Scanner(f.getInputStream());
        while (in.hasNextLine() && !result) {
            String line = in.nextLine();
            if (!caseSensitive) {
                line = line.toLowerCase();
            }
            result = line.contains(fileContent);
        }
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        try {
            if (in != null) {
                in.close();
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
    //Profiler.stop("check_old");
    return result;
}

---

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