Example usage for java.io BufferedWriter BufferedWriter

Introduction

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

Prototype

public BufferedWriter(Writer out) 

Source Link

Document

Creates a buffered character-output stream that uses a default-sized output buffer.

Usage

From source file:Main.java

public static void xmlToFile(Document doc, String fileNameToWrite) throws Exception {
    DOMSource domSource = new DOMSource(doc);
    PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter(fileNameToWrite)));
    StreamResult streamResult = new StreamResult(out);
    TransformerFactory tf = TransformerFactory.newInstance();
    Transformer transformer = tf.newTransformer();
    transformer.transform(domSource, streamResult);
}

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From source file:Main.java

public static void saveUtfFileWithBOM(File file, String content) throws IOException {
    BufferedWriter bw = null;//from   w w w .j a  v  a2s .  c  o  m
    OutputStreamWriter osw = null;

    FileOutputStream fos = new FileOutputStream(file);
    try {
        // write UTF8 BOM mark if file is empty
        if (file.length() < 1) {
            final byte[] bom = new byte[] { (byte) 0xEF, (byte) 0xBB, (byte) 0xBF };
            fos.write(bom);
        }

        osw = new OutputStreamWriter(fos, "UTF-8");
        bw = new BufferedWriter(osw);
        if (content != null) {
            bw.write(content);
        }
    } catch (IOException ex) {
        throw ex;
    } finally {
        try {
            bw.close();
            fos.close();
        } catch (Exception ex) {
        }
    }
}

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From source file:com.hp.test.framework.Reporting.removerunlinks.java

public static void removelinksforpreRuns(String FilePath, String FileName, int lastrun)
        throws FileNotFoundException, IOException {

    log.info("Removing hyper link for the last run");
    ArrayList<String> Links_To_Remove = new ArrayList<String>();

    for (int i = 1; i < lastrun; i++) {
        Links_To_Remove.add("href=\"Run_" + i + "\\CurrentRun.html\"");
    }//  ww w. j a  v a 2  s. com

    File source = new File(FilePath + FileName);
    File temp_file = new File(FilePath + "temp.html");
    BufferedReader in = new BufferedReader(new FileReader(source));
    BufferedWriter out = new BufferedWriter(new FileWriter(temp_file));
    String str = "";
    while ((str = in.readLine()) != null) {

        String temp_ar[] = str.split(" ");

        for (int i = 0; i < temp_ar.length; i++) {
            String temp = temp_ar[i].trim();
            if (!temp.equals("")) {

                if (Links_To_Remove.contains(temp)) {
                    out.write(" ");
                    out.newLine();

                } else {
                    out.write(temp);
                    out.newLine();

                }

            }
        }
    }

    out.close();
    in.close();
    out = null;
    in = null;

    source.delete();
    temp_file.renameTo(source);

}

---

From source file:apps.quantification.LearnQuantificationSVMPerf.java

public static void main(String[] args) throws IOException {
    String cmdLineSyntax = LearnQuantificationSVMPerf.class.getName()
            + " [OPTIONS] <path to svm_perf_learn> <path to svm_perf_classify> <trainingIndexDirectory> <outputDirectory>";

    Options options = new Options();

    OptionBuilder.withArgName("f");
    OptionBuilder.withDescription("Number of folds");
    OptionBuilder.withLongOpt("f");
    OptionBuilder.isRequired(true);/*from   ww w.j a va2  s  . c  o m*/
    OptionBuilder.hasArg();
    options.addOption(OptionBuilder.create());

    OptionBuilder.withArgName("c");
    OptionBuilder.withDescription("The c value for svm_perf (default 0.01)");
    OptionBuilder.withLongOpt("c");
    OptionBuilder.isRequired(false);
    OptionBuilder.hasArg();
    options.addOption(OptionBuilder.create());

    OptionBuilder.withArgName("t");
    OptionBuilder.withDescription("Path for temporary files");
    OptionBuilder.withLongOpt("t");
    OptionBuilder.isRequired(false);
    OptionBuilder.hasArg();
    options.addOption(OptionBuilder.create());

    OptionBuilder.withArgName("l");
    OptionBuilder.withDescription("The loss function to optimize (default 2):\n"
            + "               0  Zero/one loss: 1 if vector of predictions contains error, 0 otherwise.\n"
            + "               1  F1: 100 minus the F1-score in percent.\n"
            + "               2  Errorrate: Percentage of errors in prediction vector.\n"
            + "               3  Prec/Rec Breakeven: 100 minus PRBEP in percent.\n"
            + "               4  Prec@p: 100 minus precision at p in percent.\n"
            + "               5  Rec@p: 100 minus recall at p in percent.\n"
            + "               10  ROCArea: Percentage of swapped pos/neg pairs (i.e. 100 - ROCArea).");
    OptionBuilder.withLongOpt("l");
    OptionBuilder.isRequired(false);
    OptionBuilder.hasArg();
    options.addOption(OptionBuilder.create());

    OptionBuilder.withArgName("w");
    OptionBuilder.withDescription("Choice of structural learning algorithm (default 9):\n"
            + "               0: n-slack algorithm described in [2]\n"
            + "               1: n-slack algorithm with shrinking heuristic\n"
            + "               2: 1-slack algorithm (primal) described in [5]\n"
            + "               3: 1-slack algorithm (dual) described in [5]\n"
            + "               4: 1-slack algorithm (dual) with constraint cache [5]\n"
            + "               9: custom algorithm in svm_struct_learn_custom.c");
    OptionBuilder.withLongOpt("w");
    OptionBuilder.isRequired(false);
    OptionBuilder.hasArg();
    options.addOption(OptionBuilder.create());

    OptionBuilder.withArgName("p");
    OptionBuilder.withDescription("The value of p used by the prec@p and rec@p loss functions (default 0)");
    OptionBuilder.withLongOpt("p");
    OptionBuilder.isRequired(false);
    OptionBuilder.hasArg();
    options.addOption(OptionBuilder.create());

    OptionBuilder.withArgName("v");
    OptionBuilder.withDescription("Verbose output");
    OptionBuilder.withLongOpt("v");
    OptionBuilder.isRequired(false);
    OptionBuilder.hasArg(false);
    options.addOption(OptionBuilder.create());

    OptionBuilder.withArgName("s");
    OptionBuilder.withDescription("Don't delete temporary training file in svm_perf format (default: delete)");
    OptionBuilder.withLongOpt("s");
    OptionBuilder.isRequired(false);
    OptionBuilder.hasArg(false);
    options.addOption(OptionBuilder.create());

    SvmPerfLearnerCustomizer classificationLearnerCustomizer = null;
    SvmPerfClassifierCustomizer classificationCustomizer = null;

    int folds = -1;

    GnuParser parser = new GnuParser();
    String[] remainingArgs = null;
    try {
        CommandLine line = parser.parse(options, args);

        remainingArgs = line.getArgs();

        classificationLearnerCustomizer = new SvmPerfLearnerCustomizer(remainingArgs[0]);
        classificationCustomizer = new SvmPerfClassifierCustomizer(remainingArgs[1]);

        folds = Integer.parseInt(line.getOptionValue("f"));

        if (line.hasOption("c"))
            classificationLearnerCustomizer.setC(Float.parseFloat(line.getOptionValue("c")));

        if (line.hasOption("w"))
            classificationLearnerCustomizer.setW(Integer.parseInt(line.getOptionValue("w")));

        if (line.hasOption("p"))
            classificationLearnerCustomizer.setP(Integer.parseInt(line.getOptionValue("p")));

        if (line.hasOption("l"))
            classificationLearnerCustomizer.setL(Integer.parseInt(line.getOptionValue("l")));

        if (line.hasOption("v"))
            classificationLearnerCustomizer.printSvmPerfOutput(true);

        if (line.hasOption("s"))
            classificationLearnerCustomizer.setDeleteTrainingFiles(false);

        if (line.hasOption("t")) {
            classificationLearnerCustomizer.setTempPath(line.getOptionValue("t"));
            classificationCustomizer.setTempPath(line.getOptionValue("t"));
        }

    } catch (Exception exp) {
        System.err.println("Parsing failed.  Reason: " + exp.getMessage());
        HelpFormatter formatter = new HelpFormatter();
        formatter.printHelp(cmdLineSyntax, options);
        System.exit(-1);
    }

    assert (classificationLearnerCustomizer != null);

    if (remainingArgs.length != 4) {
        HelpFormatter formatter = new HelpFormatter();
        formatter.printHelp(cmdLineSyntax, options);
        System.exit(-1);
    }

    String indexFile = remainingArgs[2];

    File file = new File(indexFile);

    String indexName = file.getName();
    String indexPath = file.getParent();

    String outputPath = remainingArgs[3];

    SvmPerfLearner classificationLearner = new SvmPerfLearner();

    classificationLearner.setRuntimeCustomizer(classificationLearnerCustomizer);

    FileSystemStorageManager fssm = new FileSystemStorageManager(indexPath, false);
    fssm.open();

    IIndex training = TroveReadWriteHelper.readIndex(fssm, indexName, TroveContentDBType.Full,
            TroveClassificationDBType.Full);

    final TextualProgressBar progressBar = new TextualProgressBar("Learning the quantifiers");

    IOperationStatusListener status = new IOperationStatusListener() {

        @Override
        public void operationStatus(double percentage) {
            progressBar.signal((int) percentage);
        }
    };

    QuantificationLearner quantificationLearner = new QuantificationLearner(folds, classificationLearner,
            classificationLearnerCustomizer, classificationCustomizer, ClassificationMode.PER_CATEGORY,
            new LogisticFunction(), status);

    IQuantifier[] quantifiers = quantificationLearner.learn(training);

    File executableFile = new File(classificationLearnerCustomizer.getSvmPerfLearnPath());
    IDataManager classifierDataManager = new SvmPerfDataManager(new SvmPerfClassifierCustomizer(
            executableFile.getParentFile().getAbsolutePath() + Os.pathSeparator() + "svm_perf_classify"));
    String description = "_SVMPerf_C-" + classificationLearnerCustomizer.getC() + "_W-"
            + classificationLearnerCustomizer.getW() + "_L-" + classificationLearnerCustomizer.getL();
    if (classificationLearnerCustomizer.getL() == 4 || classificationLearnerCustomizer.getL() == 5)
        description += "_P-" + classificationLearnerCustomizer.getP();
    if (classificationLearnerCustomizer.getAdditionalParameters().length() > 0)
        description += "_" + classificationLearnerCustomizer.getAdditionalParameters();
    String quantifierPrefix = indexName + "_Quantifier-" + folds + description;

    FileSystemStorageManager fssmo = new FileSystemStorageManager(
            outputPath + File.separatorChar + quantifierPrefix, true);
    fssmo.open();
    QuantificationLearner.write(quantifiers, fssmo, classifierDataManager);
    fssmo.close();

    BufferedWriter bfs = new BufferedWriter(
            new FileWriter(outputPath + File.separatorChar + quantifierPrefix + "_rates.txt"));
    TShortDoubleHashMap simpleTPRs = quantificationLearner.getSimpleTPRs();
    TShortDoubleHashMap simpleFPRs = quantificationLearner.getSimpleFPRs();
    TShortDoubleHashMap scaledTPRs = quantificationLearner.getScaledTPRs();
    TShortDoubleHashMap scaledFPRs = quantificationLearner.getScaledFPRs();

    ContingencyTableSet contingencyTableSet = quantificationLearner.getContingencyTableSet();

    short[] cats = simpleTPRs.keys();
    for (int i = 0; i < cats.length; ++i) {
        short cat = cats[i];
        String catName = training.getCategoryDB().getCategoryName(cat);
        ContingencyTable contingencyTable = contingencyTableSet.getCategoryContingencyTable(cat);
        double simpleTPR = simpleTPRs.get(cat);
        double simpleFPR = simpleFPRs.get(cat);
        double scaledTPR = scaledTPRs.get(cat);
        double scaledFPR = scaledFPRs.get(cat);
        String line = quantifierPrefix + "\ttrain\tsimple\t" + catName + "\t" + cat + "\t"
                + contingencyTable.tp() + "\t" + contingencyTable.fp() + "\t" + contingencyTable.fn() + "\t"
                + contingencyTable.tn() + "\t" + simpleTPR + "\t" + simpleFPR + "\n";
        bfs.write(line);
        line = quantifierPrefix + "\ttrain\tscaled\t" + catName + "\t" + cat + "\t" + contingencyTable.tp()
                + "\t" + contingencyTable.fp() + "\t" + contingencyTable.fn() + "\t" + contingencyTable.tn()
                + "\t" + scaledTPR + "\t" + scaledFPR + "\n";
        bfs.write(line);
    }
    bfs.close();
}

---

From source file:Main.java

/**
 * Save {@link String} to {@link File} witht the specified encoding
 *
 * @param string {@link String}/*from   ww  w  . j a  v a2s  .  c om*/
 * @param path   Path of the file
 * @param string Encoding
 * @throws IOException
 */
public static void saveStringToFile(String string, File path, String encoding) throws IOException {
    if (path.exists()) {
        path.delete();
    }

    if ((path.getParentFile().mkdirs() || path.getParentFile().exists())
            && (path.exists() || path.createNewFile())) {
        Writer writer = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(path), encoding));
        writer.write(string);
        writer.close();
    }
}

---

From source file:Main.java

public static String UpdateScore(String userName, int br) {

    String retStr = "";

    try {//from ww w  .ja  v a  2 s  .  c o m
        URL url = new URL("http://" + IP_ADDRESS + "/RiddleQuizApp/ServerSide/AzurirajHighScore.php");

        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setConnectTimeout(15000);
        conn.setReadTimeout(10000);
        conn.setRequestMethod("POST");
        conn.setDoInput(true);
        conn.setDoOutput(true);
        Log.e("http", "por1");

        JSONObject data = new JSONObject();

        data.put("username", userName);
        data.put("broj", br);

        Log.e("http", "por3");

        Uri.Builder builder = new Uri.Builder().appendQueryParameter("action", data.toString());
        String query = builder.build().getEncodedQuery();

        Log.e("http", "por4");

        OutputStream os = conn.getOutputStream();
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(os, "UTF-8"));
        bw.write(query);
        Log.e("http", "por5");
        bw.flush();
        bw.close();
        os.close();
        int responseCode = conn.getResponseCode();

        Log.e("http", String.valueOf(responseCode));
        if (responseCode == HttpURLConnection.HTTP_OK) {
            retStr = inputStreamToString(conn.getInputStream());
        } else
            retStr = String.valueOf("Error: " + responseCode);

        Log.e("http", retStr);

    } catch (Exception e) {
        Log.e("http", "greska");
    }
    return retStr;
}

---

From source file:Main.java

public static String UdatePlayerBT(String userName, String device) {

    String retStr = "";

    try {/* www  .j a  v a  2s. c o m*/
        URL url = new URL("http://" + IP_ADDRESS + "/RiddleQuizApp/ServerSide/PostaviBTdevice.php");

        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setConnectTimeout(15000);
        conn.setReadTimeout(10000);
        conn.setRequestMethod("POST");
        conn.setDoInput(true);
        conn.setDoOutput(true);

        Log.e("http", "por1");

        JSONObject data = new JSONObject();

        data.put("username", userName);
        data.put("bt_device", device);

        Log.e("http", "por3");

        Uri.Builder builder = new Uri.Builder().appendQueryParameter("action", data.toString());
        String query = builder.build().getEncodedQuery();

        Log.e("http", "por4");

        OutputStream os = conn.getOutputStream();
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(os, "UTF-8"));
        bw.write(query);
        Log.e("http", "por5");
        bw.flush();
        bw.close();
        os.close();
        int responseCode = conn.getResponseCode();

        Log.e("http", String.valueOf(responseCode));
        if (responseCode == HttpURLConnection.HTTP_OK) {
            retStr = inputStreamToString(conn.getInputStream());
        } else
            retStr = String.valueOf("Error: " + responseCode);

        Log.e("http", retStr);

    } catch (Exception e) {
        Log.e("http", "greska");
    }
    return retStr;
}

---

From source file:csv.FileManager.java

static public boolean appendItems(String fileName, ArrayList<ArrayList<String>> data,
        boolean firstRowIsHeader) {
    try {//  ww w. ja  v a 2 s . c  o m
        BufferedWriter out = new BufferedWriter(new FileWriter(fileName, true));
        CSVWriter writer = new CSVWriter(out);
        String[] t = new String[0];
        for (ArrayList<String> row : data) {
            if (!firstRowIsHeader) {
                boolean found = false;
                for (String str : row) {
                    if (!str.isEmpty()) {
                        found = true;
                    }
                }
                if (found)
                    writer.writeNext(row.toArray(t));
            } else
                firstRowIsHeader = false;
        }
        out.close();
        return true;
    } catch (Exception e) {
        System.out.println(e.getMessage());
        return false;
    }
}

---

From source file:apps.ParsedPost.java

public static void main(String args[]) {

    Options options = new Options();

    options.addOption(INPUT_PARAM, null, true, INPUT_DESC);
    options.addOption(OUTPUT_PARAM, null, true, OUTPUT_DESC);
    options.addOption(MAX_NUM_REC_PARAM, null, true, MAX_NUM_REC_DESC);
    options.addOption(DEBUG_PRINT_PARAM, null, false, DEBUG_PRINT_DESC);
    options.addOption(EXCLUDE_CODE_PARAM, null, false, EXCLUDE_CODE_DESC);

    CommandLineParser parser = new org.apache.commons.cli.GnuParser();

    HashMap<String, ParsedPost> hQuestions = new HashMap<String, ParsedPost>();

    try {//from   ww w  .  ja va  2  s  .  co m
        CommandLine cmd = parser.parse(options, args);

        String inputFile = cmd.getOptionValue(INPUT_PARAM);

        if (null == inputFile)
            Usage("Specify: " + INPUT_PARAM, options);

        String outputFile = cmd.getOptionValue(OUTPUT_PARAM);

        if (null == outputFile)
            Usage("Specify: " + OUTPUT_PARAM, options);

        InputStream input = CompressUtils.createInputStream(inputFile);
        BufferedWriter output = new BufferedWriter(new FileWriter(new File(outputFile)));

        int maxNumRec = Integer.MAX_VALUE;

        String tmp = cmd.getOptionValue(MAX_NUM_REC_PARAM);

        if (tmp != null)
            maxNumRec = Integer.parseInt(tmp);

        boolean debug = cmd.hasOption(DEBUG_PRINT_PARAM);

        boolean excludeCode = cmd.hasOption(EXCLUDE_CODE_PARAM);

        System.out.println("Processing at most " + maxNumRec + " records, excluding code? " + excludeCode);

        XmlIterator xi = new XmlIterator(input, ROOT_POST_TAG);

        String elem;

        output.write("<?xml version='1.0' encoding='UTF-8'?><ystfeed>\n");

        for (int num = 1; num <= maxNumRec && !(elem = xi.readNext()).isEmpty(); ++num) {
            ParsedPost post = null;
            try {
                post = parsePost(elem, excludeCode);

                if (!post.mAcceptedAnswerId.isEmpty()) {
                    hQuestions.put(post.mId, post);
                } else if (post.mpostIdType.equals("2")) {
                    String parentId = post.mParentId;
                    String id = post.mId;
                    if (!parentId.isEmpty()) {
                        ParsedPost parentPost = hQuestions.get(parentId);
                        if (parentPost != null && parentPost.mAcceptedAnswerId.equals(id)) {
                            output.write(createYahooAnswersQuestion(parentPost, post));
                            hQuestions.remove(parentId);
                        }
                    }
                }

            } catch (Exception e) {
                e.printStackTrace();
                throw new Exception("Error parsing record # " + num + ", error message: " + e);
            }
            if (debug) {
                System.out.println(String.format("%s parentId=%s acceptedAnswerId=%s type=%s", post.mId,
                        post.mParentId, post.mAcceptedAnswerId, post.mpostIdType));
                System.out.println("================================");
                if (!post.mTitle.isEmpty()) {
                    System.out.println(post.mTitle);
                    System.out.println("--------------------------------");
                }
                System.out.println(post.mBody);
                System.out.println("================================");
            }
        }

        output.write("</ystfeed>\n");

        input.close();
        output.close();

    } catch (ParseException e) {
        Usage("Cannot parse arguments", options);
    } catch (Exception e) {
        e.printStackTrace();
        System.err.println("Terminating due to an exception: " + e);
        System.exit(1);
    }

}

---

From source file:dao.EntryDaoTest.java

@BeforeClass
public static void setUpClass() {
    String fSeparator = File.separator;
    try {//from ww  w.j  ava  2  s .  co  m
        File folder = new File(
                System.getProperty("user.dir") + fSeparator + "MyDiaryBook" + fSeparator + "Users" + fSeparator
                        + "Panagiwtis Georgiadis" + fSeparator + "Entries" + fSeparator + "Texnologia2");
        folder.mkdirs();

        File textFolder = new File(folder.toString() + fSeparator + "Texts");
        textFolder.mkdirs();
        File textFile = new File(textFolder.toString() + fSeparator + "test.txt");
        BufferedWriter bw;
        FileWriter fw;
        fw = new FileWriter(textFile, true);
        bw = new BufferedWriter(fw);
        bw.write("test0123456789");
        if (bw != null)
            bw.close();
        fw.close();
        File imageFolder = new File(folder.toString() + fSeparator + "Images");
        imageFolder.mkdirs();
        String imageSourcePath = System.getProperty("user.dir") + fSeparator + "src" + fSeparator + "test"
                + fSeparator + "java" + fSeparator + "resources" + fSeparator + "testImg.jpg";
        File imageSourceFile = new File(imageSourcePath);
        FileUtils.copyFileToDirectory(imageSourceFile, imageFolder);

        String videoSourcePath = System.getProperty("user.dir") + fSeparator + "src" + fSeparator + "test"
                + fSeparator + "java" + fSeparator + "resources" + fSeparator + "testVideo.mp4";
        File videoSourceFile = new File(videoSourcePath);
        File videoFolder = new File(folder.toString() + fSeparator + "Videos");
        videoFolder.mkdirs();
        FileUtils.copyFileToDirectory(videoSourceFile, videoFolder);
    } catch (IOException ex) {
        Logger.getLogger(EntryDaoTest.class.getName()).log(Level.SEVERE, null, ex);
    }
}

---

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