Example usage for java.lang StringBuffer StringBuffer

Introduction

In this page you can find the example usage for java.lang StringBuffer StringBuffer.

Prototype

public StringBuffer(CharSequence seq) 

Source Link

Document

Constructs a string buffer that contains the same characters as the specified CharSequence .

Usage

From source file:fr.inria.edelweiss.kgdqp.core.FedQueryingCLI.java

@SuppressWarnings("unchecked")
public static void main(String args[]) throws ParseException, EngineException {

    List<String> endpoints = new ArrayList<String>();
    String queryPath = null;/*from w w  w  .  j ava2  s  . c om*/
    int slice = -1;

    Options options = new Options();
    Option helpOpt = new Option("h", "help", false, "print this message");
    Option queryOpt = new Option("q", "query", true, "specify the sparql query file");
    Option endpointOpt = new Option("e", "endpoints", true, "the list of federated sparql endpoint URLs");
    Option groupingOpt = new Option("g", "grouping", true, "triple pattern optimisation");
    Option slicingOpt = new Option("s", "slicing", true, "size of the slicing parameter");
    Option versionOpt = new Option("v", "version", false, "print the version information and exit");
    options.addOption(queryOpt);
    options.addOption(endpointOpt);
    options.addOption(helpOpt);
    options.addOption(versionOpt);
    options.addOption(groupingOpt);
    options.addOption(slicingOpt);

    String header = "Corese/KGRAM DQP command line interface";
    String footer = "\nPlease report any issue to alban.gaignard@cnrs.fr";

    CommandLineParser parser = new BasicParser();
    CommandLine cmd = parser.parse(options, args);
    if (cmd.hasOption("h")) {
        HelpFormatter formatter = new HelpFormatter();
        formatter.printHelp("kgdqp", header, options, footer, true);
        System.exit(0);
    }
    if (!cmd.hasOption("e")) {
        logger.info("You must specify at least the URL of one sparql endpoint !");
        System.exit(0);
    } else {
        endpoints = new ArrayList<String>(Arrays.asList(cmd.getOptionValues("e")));
    }
    if (!cmd.hasOption("q")) {
        logger.info("You must specify a path for a sparql query !");
        System.exit(0);
    } else {
        queryPath = cmd.getOptionValue("q");
    }
    if (cmd.hasOption("s")) {
        try {
            slice = Integer.parseInt(cmd.getOptionValue("s"));
        } catch (NumberFormatException ex) {
            logger.warn(cmd.getOptionValue("s") + " is not formatted as number for the slicing parameter");
            logger.warn("Slicing disabled");
        }
    }
    if (cmd.hasOption("v")) {
        logger.info("version 3.0.4-SNAPSHOT");
        System.exit(0);
    }

    /////////////////
    Graph graph = Graph.create();
    QueryProcessDQP exec = QueryProcessDQP.create(graph);
    exec.setGroupingEnabled(cmd.hasOption("g"));
    if (slice > 0) {
        exec.setSlice(slice);
    }
    Provider sProv = ProviderImplCostMonitoring.create();
    exec.set(sProv);

    for (String url : endpoints) {
        try {
            exec.addRemote(new URL(url), WSImplem.REST);
        } catch (MalformedURLException ex) {
            logger.error(url + " is not a well-formed URL");
            System.exit(1);
        }
    }

    StringBuffer fileData = new StringBuffer(1000);
    BufferedReader reader = null;
    try {
        reader = new BufferedReader(new FileReader(queryPath));
    } catch (FileNotFoundException ex) {
        logger.error("Query file " + queryPath + " not found !");
        System.exit(1);
    }
    char[] buf = new char[1024];
    int numRead = 0;
    try {
        while ((numRead = reader.read(buf)) != -1) {
            String readData = String.valueOf(buf, 0, numRead);
            fileData.append(readData);
            buf = new char[1024];
        }
        reader.close();
    } catch (IOException ex) {
        logger.error("Error while reading query file " + queryPath);
        System.exit(1);
    }

    String sparqlQuery = fileData.toString();

    //        Query q = exec.compile(sparqlQuery, null);
    //        System.out.println(q);

    StopWatch sw = new StopWatch();
    sw.start();
    Mappings map = exec.query(sparqlQuery);
    int dqpSize = map.size();
    System.out.println("--------");
    long time = sw.getTime();
    System.out.println(time + " " + dqpSize);
}

---

From source file:edu.uga.cs.fluxbuster.FluxbusterCLI.java

/**
 * The main method.//  w w w. j a v a2 s  .  co m
 *
 * @param args the command line arguments
 */
public static void main(String[] args) {
    GnuParser parser = new GnuParser();
    Options opts = FluxbusterCLI.initializeOptions();
    CommandLine cli;
    try {
        cli = parser.parse(opts, args);

        if (cli.hasOption('?')) {
            throw new ParseException(null);
        }

        if (validateDate(cli.getOptionValue('d')) && validateDate(cli.getOptionValue('e'))) {

            if (log.isInfoEnabled()) {
                StringBuffer arginfo = new StringBuffer("\n");
                arginfo.append("generate-clusters: " + cli.hasOption('g') + "\n");
                arginfo.append("calc-features: " + cli.hasOption('f') + "\n");
                arginfo.append("calc-similarity: " + cli.hasOption('s') + "\n");
                arginfo.append("classify-clusters: " + cli.hasOption('c') + "\n");
                arginfo.append("start-date: " + cli.getOptionValue('d') + "\n");
                arginfo.append("end-date: " + cli.getOptionValue('e') + "\n");
                log.info(arginfo.toString());
            }

            try {
                boolean clus = true, feat = true, simil = true, clas = true;
                if (cli.hasOption('g') || cli.hasOption('f') || cli.hasOption('s') || cli.hasOption('c')) {
                    if (!cli.hasOption('g')) {
                        clus = false;
                    }
                    if (!cli.hasOption('f')) {
                        feat = false;
                    }
                    if (!cli.hasOption('s')) {
                        simil = false;
                    }
                    if (!cli.hasOption('c')) {
                        clas = false;
                    }
                }

                DBInterfaceFactory.init();
                SimpleDateFormat df = new SimpleDateFormat("yyyyMMdd");
                Date logdate = df.parse(cli.getOptionValue('d'));
                long startTime = logdate.getTime() / 1000;
                long endTime = df.parse(cli.getOptionValue('e')).getTime() / 1000;

                if (clus) {
                    ClusterGenerator cg = new ClusterGenerator();
                    List<DomainCluster> clusters = cg.generateClusters(startTime, endTime, true);
                    cg.storeClusters(clusters, logdate);
                }
                if (feat) {
                    FeatureCalculator calc = new FeatureCalculator();
                    calc.updateFeatures(logdate);
                }
                if (simil) {
                    ClusterSimilarityCalculator calc2 = new ClusterSimilarityCalculator();
                    calc2.updateClusterSimilarities(logdate);
                }
                if (clas) {
                    Classifier calc3 = new Classifier();
                    calc3.updateClusterClasses(logdate, 30);
                }
            } catch (Exception e) {
                if (log.isFatalEnabled()) {
                    log.fatal("", e);
                }
            } finally {
                DBInterfaceFactory.shutdown();
            }
        } else {
            throw new ParseException(null);
        }
    } catch (ParseException e1) {
        PrintWriter writer = new PrintWriter(System.out);
        HelpFormatter usageFormatter = new HelpFormatter();
        usageFormatter.printHelp(writer, 80, "fluxbuster", "If none of the options g, f, s, c are specified "
                + "then the program will execute as if all of them "
                + "have been specified.  Otherwise, the program will " + "only execute the options specified.",
                opts, 0, 2, "");
        writer.close();
    }
}

---

From source file:Main.java

static String formatDateTime(String mmdd, String hhmmss) {
    return new StringBuffer(hhmmss).insert(4, ":").insert(2, ":").insert(0, ' ').insert(0, mmdd).insert(2, "/")
            .toString();// w  ww  .j av  a2s . c  om
}

---

From source file:Main.java

public static String toString(byte b) {
    StringBuffer sb = new StringBuffer(2);
    int i = (b & 0xF0) >> 4;
    int j = b & 0x0F;
    sb.append(new Character((char) ((i > 9) ? (65 + i - 10) : (48 + i))));
    sb.append(new Character((char) ((j > 9) ? (65 + j - 10) : (48 + j))));

    return sb.toString();
}

---

From source file:Main.java

private static String join(int length) {
    StringBuffer sb = new StringBuffer(1024);
    for (int i = 0; i < length; i++) {
        sb.append("?,");
    }/*  w  w w  . j  av  a 2 s.c o  m*/
    if (sb.charAt(sb.length() - 1) == ',') {
        sb.deleteCharAt(sb.length() - 1);
    }
    return sb.toString();
}

---

From source file:Main.java

public static String toHex(byte[] buffer) {
    StringBuffer sb = new StringBuffer(buffer.length * 2);
    for (int i = 0; i < buffer.length; i++) {
        sb.append(Character.forDigit((buffer[i] & 240) >> 4, 16));
        sb.append(Character.forDigit(buffer[i] & 15, 16));
    }/*from   w w  w  .ja  v  a 2 s  . com*/
    return sb.toString();
}

---

From source file:Main.java

public static String byte2hex(byte[] b) {
    StringBuffer sb = new StringBuffer(b.length * 2);
    String tmp = "";
    for (int n = 0; n < b.length; n++) {
        tmp = (Integer.toHexString(b[n] & 0XFF));
        if (tmp.length() == 1) {
            sb.append("0");
        }/* w  w w.  j ava 2 s. c o m*/
        sb.append(tmp);
    }
    return sb.toString().toUpperCase();
}

---

From source file:Main.java

public static String byte2hex(byte[] b) {
    StringBuffer sb = new StringBuffer(b.length * 2);
    String tmp = "";
    for (int n = 0; n < b.length; n++) {
        tmp = (java.lang.Integer.toHexString(b[n] & 0XFF));
        if (tmp.length() == 1) {
            sb.append("0");
        }//from ww w .ja v  a  2  s  .  c  o  m
        sb.append(tmp);
    }
    return sb.toString().toUpperCase();
}

---

From source file:Main.java

public static String toHex(final byte[] b) {
    final StringBuffer sb = new StringBuffer(b.length * 3);
    for (int i = 0; i < b.length; ++i) {
        sb.append(Character.forDigit((b[i] & 0xF0) >> 4, 16));
        sb.append(Character.forDigit(b[i] & 0xF, 16));
    }//  ww w. j  a va  2s  .co m
    return ((sb != null) ? sb.toString().toUpperCase() : null);
}

---

From source file:Main.java

public static String Bcd2Str(byte[] bytes) {
    StringBuffer temp = new StringBuffer(bytes.length * 2);

    for (int i = 0; i < bytes.length; i++) {
        temp.append((byte) ((bytes[i] & 0xf0) >>> 4));
        temp.append((byte) (bytes[i] & 0x0f));
    }/*w  w  w.  j  a  v  a  2s .  c o  m*/
    return temp.toString();
}

---

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