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:it.unibas.spicybenchmark.persistence.DAOLogFile.java

public static void saveLog(String log, String logFile) throws DAOException {
    BufferedWriter writer = null;
    try {//from   www  .j  av  a 2 s .c  om
        File f = new File(logFile);
        f.getParentFile().mkdirs();
        FileWriter fileWriter = new FileWriter(logFile);
        writer = new BufferedWriter(fileWriter);
        writer.write(log);
    } catch (FileNotFoundException fnfe) {
        throw new DAOException(" File not found: " + fnfe);
    } catch (IOException ioe) {
        throw new DAOException(" Error: " + ioe);
    } catch (NoSuchElementException nse) {
        throw new DAOException(" Error in file format: " + nse);
    } finally {
        try {
            if (writer != null) {
                writer.close();
            }
        } catch (IOException ioe) {
        }
    }
}

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From source file:it.geosolutions.tools.io.file.writer.Writer.java

/**
 * Open 'destination' file in append mode and append content of the
 * 'toAppend' file/* ww  w.ja  v  a  2 s.  c  o m*/
 * 
 * @param toAppend
 * @param destination
 * @throws IOException
 */
public static void appendFile(File toAppend, File destination) throws IOException {
    FileWriter fw = null;
    BufferedWriter bw = null;
    LineIterator it = null;
    try {
        fw = new FileWriter(destination, true);
        bw = new BufferedWriter(fw);
        it = FileUtils.lineIterator(toAppend);
        while (it.hasNext()) {
            bw.append(it.nextLine());
            bw.newLine();
        }
        bw.flush();
    } finally {
        if (it != null) {
            it.close();
        }
        if (bw != null) {
            IOUtils.closeQuietly(bw);
        }
        if (fw != null) {
            IOUtils.closeQuietly(fw);
        }
    }
}

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From source file:edu.cmu.lti.oaqa.knn4qa.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(CommonParams.MAX_NUM_REC_PARAM, null, true, CommonParams.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 {/*w ww  . j  a v  a2 s  . com*/
        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(CommonParams.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:com.netflix.config.DynamicFileConfigurationTest.java

static File createConfigFile(String prefix) throws Exception {
    configFile = File.createTempFile(prefix, ".properties");
    BufferedWriter writer = new BufferedWriter(
            new OutputStreamWriter(new FileOutputStream(configFile), "UTF-8"));
    writer.write("dprops1=123456789");
    writer.newLine();/*from w  w  w .j  av a  2s .  c  o  m*/
    writer.write("dprops2=79.98");
    writer.newLine();
    writer.close();
    System.err.println(configFile.getPath() + " created");
    return configFile;
}

---

From source file:mrdshinse.sql2xlsx.util.FileUtil.java

public static File create(File file, String str) {
    try (PrintWriter pw = new PrintWriter(new BufferedWriter(new FileWriter(file)))) {
        pw.print(str);//from w  ww.  j  a  v  a 2  s  .  c  om
    } catch (IOException ex) {
        return file;
    }
    return file;
}

---

From source file:com.raphfrk.craftproxyclient.json.JSONManager.java

public static byte[] JSONToBytes(JSONObject obj) {
    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    OutputStreamWriter wos = new OutputStreamWriter(bos, StandardCharsets.UTF_8);
    BufferedWriter br = new BufferedWriter(wos);
    try {/*from w ww.j ava 2 s  .  com*/
        obj.writeJSONString(br);
        br.close();
    } catch (IOException e) {
        return null;
    }
    return bos.toByteArray();
}

---

From source file:com.siemens.sw360.exporter.CSVExport.java

@NotNull
private static ByteArrayOutputStream getCSVOutputStream(Iterable<String> csvHeaderIterable,
        Iterable<Iterable<String>> inputIterable) throws IOException {
    final ByteArrayOutputStream outB = new ByteArrayOutputStream();
    try (Writer out = new BufferedWriter(new OutputStreamWriter(outB));) {
        CSVPrinter csvPrinter = new CSVPrinter(out, CommonUtils.sw360CsvFormat);
        csvPrinter.printRecord(csvHeaderIterable);
        csvPrinter.printRecords(inputIterable);
        csvPrinter.flush();/*from   w  w w  .j  a v  a 2 s  .c o  m*/
        csvPrinter.close();
    } catch (Exception e) {
        outB.close();
        throw e;
    }

    return outB;

}

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From source file:com.devdungeon.httpexamples.DownloadFile.java

private static void download(String url, String filepath) {
    HttpClient client = new DefaultHttpClient();

    HttpParams params = client.getParams();
    HttpConnectionParams.setConnectionTimeout(params, 1000 * 5);
    HttpConnectionParams.setSoTimeout(params, 1000 * 5);

    HttpGet request = new HttpGet(url);

    HttpResponse response = null;// ww w.ja va 2  s  .  co m
    try {
        response = client.execute(request);
    } catch (IOException ex) {
        Logger.getLogger(HttpGetExample.class.getName()).log(Level.SEVERE, null, ex);
    }
    BufferedReader rd;
    String line = null;
    try {
        rd = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
        FileWriter fileWriter = new FileWriter(filepath);
        BufferedWriter bufferedWriter = new BufferedWriter(fileWriter);
        while ((line = rd.readLine()) != null) {
            bufferedWriter.write(line);
            bufferedWriter.newLine();
        }
        bufferedWriter.close();

    } catch (IOException ex) {
        Logger.getLogger(HttpGetExample.class.getName()).log(Level.SEVERE, null, ex);
    } catch (UnsupportedOperationException ex) {
        Logger.getLogger(HttpGetExample.class.getName()).log(Level.SEVERE, null, ex);
    }
}

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From source file:gov.nih.nci.restgen.util.GeneratorUtil.java

public static void writeFile(String _outputDir, String _fileName, String _content) {
    BufferedWriter bufferedWriter = null;

    try {//from www  . j  a  v  a2  s .c  om
        createOutputDir(_outputDir);
        File file = new File(_outputDir, _fileName);
        FileWriter fileWriter = new FileWriter(file);
        bufferedWriter = new BufferedWriter(fileWriter);
        bufferedWriter.write(_content);
        bufferedWriter.flush();
    } catch (Throwable t) {
        throw new RuntimeException(t);
    } finally {
        if (bufferedWriter != null) {
            try {
                bufferedWriter.close();
            } catch (Throwable t) {
            }
        }
    }
}

---

From source file:com.daphne.es.maintain.staticresource.web.controller.utils.YuiCompressorUtils.java

/**
 * js/css  ??.min.js/css//from  ww  w . j  ava 2  s  .  c o  m
 * @param fileName
 * @return ??
 */
public static String compress(final String fileName) {
    String minFileName = null;
    final String extension = FilenameUtils.getExtension(fileName);
    if ("js".equalsIgnoreCase(extension)) {
        minFileName = fileName.substring(0, fileName.length() - 3) + ".min.js";
    } else if ("css".equals(extension)) {
        minFileName = fileName.substring(0, fileName.length() - 4) + ".min.css";
    } else {
        throw new RuntimeException(
                "file type only is js/css, but was fileName:" + fileName + ", extension:" + extension);
    }
    Reader in = null;
    Writer out = null;
    try {
        in = new BufferedReader(new InputStreamReader(new FileInputStream(fileName), Constants.ENCODING));
        out = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(minFileName), Constants.ENCODING));

        if ("js".equals(extension)) {

            CustomErrorReporter errorReporter = new CustomErrorReporter();

            JavaScriptCompressor compressor = new JavaScriptCompressor(in, errorReporter);
            compressor.compress(out, 10, true, false, false, false);

            if (errorReporter.hasError()) {
                throw new RuntimeException(errorReporter.getErrorMessage());
            }

        } else if ("css".equals(extension)) {

            CssCompressor compressor = new CssCompressor(in);
            compressor.compress(out, 10);
        }
    } catch (Exception e) {
        //?js/css
        try {
            FileUtils.copyFile(new File(fileName), new File(minFileName));
        } catch (IOException ioException) {
            throw new RuntimeException("compress error:" + ioException.getMessage(), ioException);
        }
        throw new RuntimeException("compress error:" + e.getMessage(), e);
    } finally {
        if (in != null) {
            try {
                in.close();
            } catch (IOException e) {
            }
        }
        if (out != null) {
            try {
                out.close();
            } catch (IOException e) {
            }
        }
    }

    if (FileUtils.sizeOf(new File(minFileName)) == 0) {
        try {
            FileUtils.copyFile(new File(fileName), new File(minFileName));
        } catch (IOException ioException) {
            throw new RuntimeException("compress error:" + ioException.getMessage(), ioException);
        }
    }

    return minFileName;
}

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