Example usage for java.lang String valueOf

Introduction

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

Prototype

public static String valueOf(char data[], int offset, int count) 

Source Link

Document

Returns the string representation of a specific subarray of the char array argument.

Usage

From source file:Main.java

public static void main(String args[]) {
    char charArray[] = { 'j', 'a', 'v', 'a', '2', 's', '.', 'c', 'o', 'm' };
    System.out.printf("part of char array = %s\n", String.valueOf(charArray, 3, 3));

}

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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 www . j  a v a 2 s. c  o m
    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);
}

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From source file:Main.java

public static String xmlFileToString(String path) {
    FileReader reader = null;//from  ww w .  java  2s  .  co m
    StringBuilder sb = new StringBuilder();
    char[] buf = new char[1024];
    try {
        reader = new FileReader(path);
        int temp = 0;
        while ((temp = reader.read(buf)) != -1) {
            sb.append(String.valueOf(buf, 0, temp));
        }
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        try {
            reader.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    return sb.toString();
}

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