Example usage for java.io BufferedWriter append

Introduction

In this page you can find the example usage for java.io BufferedWriter append.

Prototype

public Writer append(CharSequence csq) throws IOException 

Source Link

Document

Appends the specified character sequence to this writer.

Usage

From source file:Main.java

public static void main(String[] args) throws IOException {

    StringWriter sw = new StringWriter();

    BufferedWriter bw = new BufferedWriter(sw);

    bw.append("java2s.com");

    bw.close();//from  www .ja  v  a  2  s  . co m

    System.out.println(sw.getBuffer());

    // appending after closing will throw error
    bw.append("2");

    System.out.println(sw.getBuffer());

}

---

From source file:Main.java

public static void main(String[] args) throws IOException {

    String letters = "from java2s.com";

    StringWriter sw = new StringWriter();

    BufferedWriter bw = new BufferedWriter(sw);

    for (char c : letters.toCharArray()) {

        bw.append(c);

        bw.flush();//  w w  w  . j  a  v  a2s.  co  m

        System.out.println(sw.getBuffer());
    }

}

---

From source file:eu.annocultor.converters.geonames.GeonamesDumpToRdf.java

public static void main(String[] args) throws Exception {
    File root = new File("input_source");

    // load country-continent match
    countryToContinent/*from w ww.  ja va2  s  .co  m*/
            .load((new GeonamesDumpToRdf()).getClass().getResourceAsStream("/country-to-continent.properties"));

    // creating files
    Map<String, BufferedWriter> files = new HashMap<String, BufferedWriter>();
    Map<String, Boolean> started = new HashMap<String, Boolean>();

    for (Object string : countryToContinent.keySet()) {
        String continent = countryToContinent.getProperty(string.toString());
        File dir = new File(root, continent);
        if (!dir.exists()) {
            dir.mkdir();
        }
        files.put(string.toString(), new BufferedWriter(new OutputStreamWriter(
                new FileOutputStream(new File(root, continent + "/" + string + ".rdf")), "UTF-8")));
        System.out.println(continent + "/" + string + ".rdf");
        started.put(string.toString(), false);
    }

    System.out.println(started);

    Pattern countryPattern = Pattern
            .compile("<inCountry rdf\\:resource\\=\"http\\://www\\.geonames\\.org/countries/\\#(\\w\\w)\"/>");
    long counter = 0;
    LineIterator it = FileUtils.lineIterator(new File(root, "all-geonames-rdf.txt"), "UTF-8");
    try {
        while (it.hasNext()) {
            String text = it.nextLine();
            if (text.startsWith("http://sws.geonames"))
                continue;

            // progress
            counter++;
            if (counter % 100000 == 0) {
                System.out.print("*");
            }
            //         System.out.println(counter);
            // get country
            String country = null;
            Matcher matcher = countryPattern.matcher(text);
            if (matcher.find()) {
                country = matcher.group(1);
            }
            //         System.out.println(country);
            if (country == null)
                country = "null";
            text = text.replace("<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?><rdf:RDF",
                    "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"yes\"?><rdf:RDF");
            if (started.get(country) == null)
                throw new Exception("Unknow country " + country);
            if (started.get(country).booleanValue()) {
                // remove RDF opening
                text = text.substring(text.indexOf("<rdf:RDF "));
                text = text.substring(text.indexOf(">") + 1);
            }
            // remove RDF ending
            text = text.substring(0, text.indexOf("</rdf:RDF>"));
            files.get(country).append(text + "\n");
            if (!started.get(country).booleanValue()) {
                // System.out.println("Started with country " + country);
            }
            started.put(country, true);
        }
    } finally {
        LineIterator.closeQuietly(it);
    }

    for (Object string : countryToContinent.keySet()) {
        boolean hasStarted = started.get(string.toString()).booleanValue();
        if (hasStarted) {
            BufferedWriter bf = files.get(string.toString());
            bf.append("</rdf:RDF>");
            bf.flush();
            bf.close();
        }
    }
    return;
}

---

From source file:ASCII2NATIVE.java

public static void main(String[] args) {
    File f = new File("c:\\mydb.script");
    File f2 = new File("c:\\mydb3.script");
    if (f.exists() && f.isFile()) {
        // convert param-file
        BufferedReader br = null;
        StringBuffer sb = new StringBuffer();
        String line;/*ww  w  .  j a va 2 s  .c  o m*/

        try {
            br = new BufferedReader(new InputStreamReader(new FileInputStream(f), "JISAutoDetect"));

            while ((line = br.readLine()) != null) {
                System.out.println(ascii2Native(line));
                sb.append(ascii2Native(line)).append(";\n");//.append(";\n\r")
            }

            BufferedWriter out = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(f2), "utf-8"));
            out.append(sb.toString());
            out.flush();
            out.close();
        } catch (FileNotFoundException e) {
            System.err.println("file not found - " + f);
        } catch (IOException e) {
            System.err.println("read error - " + f);
        } finally {
            try {
                if (br != null)
                    br.close();
            } catch (Exception e) {
            }
        }
    } else {
        // // convert param-data
        // System.out.print(ascii2native(args[i]));
        // if (i + 1 < args.length)
        // System.out.print(' ');
    }
}

---

From source file:eu.fbk.dkm.sectionextractor.PageClassMerger.java

public static void main(String args[]) throws IOException {

    CommandLineWithLogger commandLineWithLogger = new CommandLineWithLogger();
    commandLineWithLogger.addOption(OptionBuilder.withArgName("file").hasArg()
            .withDescription("WikiData ID file").isRequired().withLongOpt("wikidata-id").create("i"));
    commandLineWithLogger.addOption(OptionBuilder.withArgName("file").hasArg()
            .withDescription("Airpedia Person file").isRequired().withLongOpt("airpedia").create("a"));
    commandLineWithLogger.addOption(OptionBuilder.withArgName("file").hasArg().withDescription("Output file")
            .isRequired().withLongOpt("output").create("o"));
    CommandLine commandLine = null;/*  ww  w. j a  va  2  s. c  o m*/
    try {
        commandLine = commandLineWithLogger.getCommandLine(args);
        PropertyConfigurator.configure(commandLineWithLogger.getLoggerProps());
    } catch (Exception e) {
        System.exit(1);
    }

    String wikiIDFileName = commandLine.getOptionValue("wikidata-id");
    String airpediaFileName = commandLine.getOptionValue("airpedia");
    String outputFileName = commandLine.getOptionValue("output");

    HashMap<Integer, String> wikiIDs = new HashMap<>();
    HashSet<Integer> airpediaClasses = new HashSet<>();

    List<String> strings;

    logger.info("Loading file " + wikiIDFileName);
    strings = Files.readLines(new File(wikiIDFileName), Charsets.UTF_8);
    for (String line : strings) {
        line = line.trim();
        if (line.length() == 0) {
            continue;
        }
        if (line.startsWith("#")) {
            continue;
        }

        String[] parts = line.split("\t");
        if (parts.length < 2) {
            continue;
        }

        int id;
        try {
            id = Integer.parseInt(parts[0]);
        } catch (Exception e) {
            continue;
        }
        wikiIDs.put(id, parts[1]);
    }

    logger.info("Loading file " + airpediaFileName);
    strings = Files.readLines(new File(airpediaFileName), Charsets.UTF_8);
    for (String line : strings) {
        line = line.trim();
        if (line.length() == 0) {
            continue;
        }
        if (line.startsWith("#")) {
            continue;
        }

        String[] parts = line.split("\t");
        if (parts.length < 2) {
            continue;
        }

        int id;
        try {
            id = Integer.parseInt(parts[0]);
        } catch (Exception e) {
            continue;
        }
        airpediaClasses.add(id);
    }

    logger.info("Saving information");
    BufferedWriter writer = new BufferedWriter(new FileWriter(outputFileName));
    for (int i : wikiIDs.keySet()) {
        if (!airpediaClasses.contains(i)) {
            continue;
        }

        writer.append(wikiIDs.get(i)).append("\n");
    }
    writer.close();
}

---

From source file:fr.eo.util.dumper.Dumper.java

/**
 * @param args/* ww  w  .j  a  v a2  s. co  m*/
 */
public static void main(String[] args) {

    String appName = args[0];

    System.out.println("Starting dumper ...");

    Statement stmt = null;

    try {
        System.out.println("Getting database connection ...");
        Connection conn = getJtdsConnection();

        List<RequestDefinitionBean> requests = RequestDefinitionParser.getRequests(appName);

        assetFolder = RequestDefinitionParser.getAppBaseDir(appName) + "assets/";

        for (RequestDefinitionBean request : requests) {
            int currentFileSize = 0, cpt = 1;
            stmt = conn.createStatement();
            System.out.println("Dumping " + request.name + "...");
            ResultSet rs = stmt.executeQuery(request.sql);
            BufferedWriter bw = getWriter(request.name, cpt);
            bw.append(COPYRIGHTS);
            currentFileSize += COPYRIGHTS.length();
            bw.append("--" + request.name + "\n");
            while (rs.next()) {
                StringBuilder sb = new StringBuilder();
                sb.append("INSERT INTO ");
                sb.append(request.table).append(" VALUES (");
                int pos = 0;
                for (String fieldName : request.fields) {
                    String str = getFieldValue(request, pos, rs, fieldName);
                    sb.append(str);
                    pos++;
                    if (pos < request.fields.size()) {
                        sb.append(",");
                    }
                }
                sb.append(");\n");
                currentFileSize += sb.length();
                bw.append(sb.toString());
                bw.flush();

                if (currentFileSize > MAX_FILE_SIZE) {
                    bw.close();

                    bw = getWriter(request.name, ++cpt);
                    bw.append(COPYRIGHTS);
                    bw.append("--" + request.name + "\n");
                    currentFileSize = COPYRIGHTS.length();
                }
            }
            bw.flush();
            bw.close();
        }

        System.out.println("done.");

    } catch (SQLException e) {
        e.printStackTrace();
    } catch (ClassNotFoundException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        if (stmt != null) {
            try {
                stmt.close();
            } catch (SQLException e) {
                e.printStackTrace();
            }
        }
    }

    DumpFilesDescriptor descriptor = new DumpFilesDescriptor();
    descriptor.lineNumbers = getDumpLinesNumber();
    descriptor.dumpFileNames = dumpFileNames;
    writeDescriptorFile(descriptor);

    System.out.println("nb :" + descriptor.lineNumbers);
}

---

From source file:org.lieuofs.extraction.commune.historisation.ExtractionNumHistorisationCommune.java

/**
 * @param args/*from ww  w . j  av  a2  s. c  o  m*/
 */
public static void main(String[] args) throws IOException {
    ApplicationContext context = new ClassPathXmlApplicationContext(new String[] { "beans_lieuofs.xml" });
    CommuneCritere critere = new CommuneCritere();
    IGestionCommune gestionnaire = (IGestionCommune) context.getBean("gestionCommune");
    List<ICommuneSuisse> communes = gestionnaire.rechercher(critere);
    Collections.sort(communes, new Comparator<ICommuneSuisse>() {
        public int compare(ICommuneSuisse com1, ICommuneSuisse com2) {
            return com1.getNumeroOFS() - com2.getNumeroOFS();
        }
    });

    BufferedWriter writer = new BufferedWriter(
            new OutputStreamWriter(new FileOutputStream("NumeroHistorisationCommune.sql"), "Windows-1252"));
    NumeroHistorisationCommuneWriter commWriter = new NumeroHistorisationRefonteSQLWriter();
    for (ICommuneSuisse commune : communes) {
        String numHistStr = commWriter.ecrireNumero(commune);
        if (null != numHistStr) {
            writer.append(numHistStr);
        }
    }
    writer.close();

}

---

From source file:org.apache.mahout.utils.vectors.libsvm.Driver.java

/**
 * The main method./*ww w  . ja  v  a 2  s  .c  o m*/
 * 
 * @param args the arguments
 * @throws IOException Signals that an I/O exception has occurred.
 */
public static void main(String[] args) throws IOException {
    DefaultOptionBuilder obuilder = new DefaultOptionBuilder();
    ArgumentBuilder abuilder = new ArgumentBuilder();
    GroupBuilder gbuilder = new GroupBuilder();

    Option inputOpt = obuilder.withLongName("input").withRequired(true)
            .withArgument(abuilder.withName("input").withMinimum(1).withMaximum(1).create())
            .withDescription(
                    "The file or directory containing the ARFF files.  If it is a directory, all .arff files will be converted")
            .withShortName("d").create();

    Option outputOpt = obuilder.withLongName("output").withRequired(true)
            .withArgument(abuilder.withName("output").withMinimum(1).withMaximum(1).create())
            .withDescription(
                    "The output directory.  Files will have the same name as the input, but with the extension .mvc")
            .withShortName("o").create();

    Option maxOpt = obuilder.withLongName("max").withRequired(false)
            .withArgument(abuilder.withName("max").withMinimum(1).withMaximum(1).create())
            .withDescription(
                    "The maximum number of vectors to output.  If not specified, then it will loop over all docs")
            .withShortName("m").create();

    Option dictOutOpt = obuilder.withLongName("dictOut").withRequired(true)
            .withArgument(abuilder.withName("dictOut").withMinimum(1).withMaximum(1).create())
            .withDescription("The file to output the label bindings").withShortName("t").create();

    Option outWriterOpt = obuilder.withLongName("outputWriter").withRequired(false)
            .withArgument(abuilder.withName("outputWriter").withMinimum(1).withMaximum(1).create())
            .withDescription(
                    "The VectorWriter to use, either seq (SequenceFileVectorWriter - default) or file (Writes to a File using JSON format)")
            .withShortName("e").create();

    Option helpOpt = obuilder.withLongName("help").withDescription("Print out help").withShortName("h")
            .create();
    Group group = gbuilder.withName("Options").withOption(inputOpt).withOption(outputOpt).withOption(maxOpt)
            .withOption(helpOpt).withOption(dictOutOpt).withOption(outWriterOpt).create();
    try {
        Parser parser = new Parser();
        parser.setGroup(group);
        CommandLine cmdLine = parser.parse(args);

        if (cmdLine.hasOption(helpOpt)) {

            CommandLineUtil.printHelp(group);
            return;
        }

        if (cmdLine.hasOption(inputOpt)) {// Lucene case
            File input = new File(cmdLine.getValue(inputOpt).toString());
            long maxDocs = Long.MAX_VALUE;
            if (cmdLine.hasOption(maxOpt)) {
                maxDocs = Long.parseLong(cmdLine.getValue(maxOpt).toString());
            }
            if (maxDocs < 0) {
                throw new IllegalArgumentException("maxDocs must be >= 0");
            }
            String outDir = cmdLine.getValue(outputOpt).toString();
            Driver.log.info("Output Dir: {}", outDir);
            String outWriter = null;
            if (cmdLine.hasOption(outWriterOpt)) {
                outWriter = cmdLine.getValue(outWriterOpt).toString();
            }
            File dictOut = new File(cmdLine.getValue(dictOutOpt).toString());
            List<Double> labels = new ArrayList<Double>();
            if (input.exists() && input.isDirectory()) {
                File[] files = input.listFiles();

                for (File file : files) {
                    //            Driver.writeFile(outWriter, outDir, file, maxDocs, labels);
                }
            } else {
                //          Driver.writeFile(outWriter, outDir, input, maxDocs, labels);
            }
            Driver.log.info("Dictionary Output file: {}", dictOut);
            BufferedWriter writer = new BufferedWriter(
                    new OutputStreamWriter(new FileOutputStream(dictOut), Charset.forName("UTF8")));
            for (Double label : labels) {
                writer.append(label.toString()).append('\n');
            }
            writer.close();

        }

    } catch (OptionException e) {
        Driver.log.error("Exception", e);
        CommandLineUtil.printHelp(group);
    }
}

---

From source file:recsyslod.utils.DownloadLodProperties.java

/**
 * @param args the command line arguments
 *///from w  w w  . j  av  a 2  s . c  o m
public static void main(String[] args) {
    if (args.length == 2) {
        try {
            int c = 0;
            System.out.println();
            BufferedWriter writer = new BufferedWriter(new FileWriter(args[1]));
            BufferedReader reader = new BufferedReader(new FileReader(args[0]));
            while (reader.ready()) {
                String[] split = reader.readLine().split("\t");
                String id = split[0];
                String uri = split[2];
                List<Pair<String, String>> properties = getProperties(uri);
                for (Pair<String, String> p : properties) {
                    writer.append(id).append("\t").append(p.getLeft()).append("\t").append(p.getRight());
                    writer.newLine();
                }
                c++;
                if (c % 10 == 0) {
                    System.out.print(".");
                    if (c % 1000 == 0) {
                        System.out.println("." + c);
                    }
                }
            }
            reader.close();
            writer.close();
        } catch (Exception ex) {
            LOG.log(Level.SEVERE, null, ex);
        }
    }
}

---

From source file:com.cyberway.issue.net.PublicSuffixes.java

/**
 * Utility method for dumping a regex String, based on a published public
 * suffix list, which matches any SURT-form hostname up through the broadest
 * 'private' (assigned/sold) domain-segment. That is, for any of the
 * SURT-form hostnames...//from   ww  w  .  j  av  a 2 s.  c  om
 * 
 * com,example, com,example,www, com,example,california,www
 * 
 * ...the regex will match 'com,example,'.
 * 
 * @param args
 * @throws IOException
 */
public static void main(String args[]) throws IOException {

    String regex;

    if (args.length == 0 || "=".equals(args[0])) {
        // use bundled list
        regex = getTopmostAssignedSurtPrefixRegex();
    } else {
        // use specified filename
        BufferedReader reader = new BufferedReader(new FileReader(args[0]));
        regex = getTopmostAssignedSurtPrefixRegex(reader);
        IOUtils.closeQuietly(reader);
    }

    boolean needsClose = false;
    BufferedWriter writer;
    if (args.length >= 2) {
        // writer to specified file
        writer = new BufferedWriter(new FileWriter(args[1]));
        needsClose = true;
    } else {
        // write to stdout
        writer = new BufferedWriter(new OutputStreamWriter(System.out));
    }
    writer.append(regex);
    writer.flush();
    if (needsClose) {
        writer.close();
    }
}

---

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