Example usage for java.io Writer close

Introduction

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

Prototype

public abstract void close() throws IOException;

Source Link

Document

Closes the stream, flushing it first.

Usage

From source file:cht.Parser.java

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

    // TODO get from google drive
    boolean isUnicode = false;
    boolean isRemoveInputFileOnComplete = false;
    int rowNum;/*from   www . java 2 s.com*/
    int colNum;
    Gson gson = new GsonBuilder().setPrettyPrinting().create();

    Properties prop = new Properties();

    try {
        prop.load(new FileInputStream("config.txt"));
    } catch (IOException ex) {
        ex.printStackTrace();
    }

    String inputFilePath = prop.getProperty("inputFile");
    String outputDirectory = prop.getProperty("outputDirectory");
    System.out.println(outputDirectory);
    // optional
    String unicode = prop.getProperty("unicode");
    String removeInputFileOnComplete = prop.getProperty("removeInputFileOnComplete");

    inputFilePath = inputFilePath.trim();
    outputDirectory = outputDirectory.trim();

    if (unicode != null) {
        isUnicode = Boolean.parseBoolean(unicode.trim());
    }
    if (removeInputFileOnComplete != null) {
        isRemoveInputFileOnComplete = Boolean.parseBoolean(removeInputFileOnComplete.trim());
    }

    Writer out = null;
    FileInputStream in = null;
    final String newLine = System.getProperty("line.separator").toString();
    final String separator = File.separator;
    try {
        in = new FileInputStream(inputFilePath);

        Workbook workbook = new XSSFWorkbook(in);

        Sheet sheet = workbook.getSheetAt(0);

        rowNum = sheet.getLastRowNum() + 1;
        colNum = sheet.getRow(0).getPhysicalNumberOfCells();

        for (int j = 1; j < colNum; ++j) {
            String outputFilename = sheet.getRow(0).getCell(j).getStringCellValue();
            // guess directory
            int slash = outputFilename.indexOf('/');
            if (slash != -1) { // has directory
                outputFilename = outputFilename.substring(0, slash) + separator
                        + outputFilename.substring(slash + 1);
            }

            String outputPath = FilenameUtils.concat(outputDirectory, outputFilename);
            System.out.println("--Writing " + outputPath);
            out = new OutputStreamWriter(new FileOutputStream(outputPath), "UTF-8");
            TreeMap<String, Object> map = new TreeMap<String, Object>();
            for (int i = 1; i < rowNum; i++) {
                try {
                    String key = sheet.getRow(i).getCell(0).getStringCellValue();
                    //String value = "";
                    Cell tmp = sheet.getRow(i).getCell(j);
                    if (tmp != null) {
                        // not empty string!
                        value = sheet.getRow(i).getCell(j).getStringCellValue();
                    }
                    if (!key.equals("") && !key.startsWith("#") && !key.startsWith(".")) {
                        value = isUnicode ? StringEscapeUtils.escapeJava(value) : value;

                        int firstdot = key.indexOf(".");
                        String keyName, keyAttribute;
                        if (firstdot > 0) {// a.b.c.d 
                            keyName = key.substring(0, firstdot); // a
                            keyAttribute = key.substring(firstdot + 1); // b.c.d
                            TreeMap oldhash = null;
                            Object old = null;
                            if (map.get(keyName) != null) {
                                old = map.get(keyName);
                                if (old instanceof TreeMap == false) {
                                    System.out.println("different type of key:" + key);
                                    continue;
                                }
                                oldhash = (TreeMap) old;
                            } else {
                                oldhash = new TreeMap();
                            }

                            int firstdot2 = keyAttribute.indexOf(".");
                            String rootName, childName;
                            if (firstdot2 > 0) {// c, d.f --> d, f
                                rootName = keyAttribute.substring(0, firstdot2);
                                childName = keyAttribute.substring(firstdot2 + 1);
                            } else {// c, d  -> d, null
                                rootName = keyAttribute;
                                childName = null;
                            }

                            TreeMap<String, Object> object = myPut(oldhash, rootName, childName);
                            map.put(keyName, object);

                        } else {// c, d  -> d, null
                            keyName = key;
                            keyAttribute = null;
                            // simple string mode
                            map.put(key, value);
                        }

                    }

                } catch (Exception e) {
                    // just ingore empty rows
                }

            }
            String json = gson.toJson(map);
            // output json
            out.write(json + newLine);
            out.close();
        }
        in.close();

        System.out.println("\n---Complete!---");
        System.out.println("Read input file from " + inputFilePath);
        System.out.println(colNum - 1 + " output files ate generated at " + outputDirectory);
        System.out.println(rowNum + " records are generated for each output file.");
        System.out.println("output file is ecoded as unicode? " + (isUnicode ? "yes" : "no"));
        if (isRemoveInputFileOnComplete) {
            File input = new File(inputFilePath);
            input.deleteOnExit();
            System.out.println("Deleted " + inputFilePath);
        }

    } catch (FileNotFoundException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        if (in != null) {
            in.close();
        }
    }

}

From source file:Main.java

public static void closeWriter(Writer writer) {

    if (writer != null) {

        try {/*from www  . ja  v  a 2  s  . c o m*/
            writer.close();
        } catch (IOException e) {
        }
    }
}

From source file:Main.java

public static void closeWriter(Writer wr) {
    if (wr != null) {
        try {//from www.java 2  s.  c  o m
            wr.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

From source file:Main.java

/**
 * Close the specified writer, ignoring any exceptions.
 *///from w ww.  j  a  va 2s.  c om
public static void closeQuietly(Writer writer) {
    try {
        writer.close();
    } catch (final Exception e) {
        // Ignored
    }
}

From source file:dualcontrol.DualControlDigest.java

public static byte[] getBytes(char[] chars) throws IOException {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    Writer writer = new OutputStreamWriter(baos);
    writer.write(chars);//  w  w w  . j av  a 2 s. c o m
    writer.close();
    return baos.toByteArray();
}

From source file:Main.java

private static void close(Writer writer) {
    try {//from   w w  w.jav a2 s  .  co m
        if (writer == null)
            return;
        writer.close();
    } catch (Exception localException) {
    }
}

From source file:Main.java

/**
 * Comprime uma string utilizando o GZIP
 * //from w  w w.  j  a va  2s. c  o m
 * @param str
 * @param encoding
 * @return
 */
public static String gzipCompressString(String str, String encoding) {
    try {
        if (str == null || str.length() == 0) {
            return null;
        }
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        GZIPOutputStream gzip = new GZIPOutputStream(out);
        Writer writer = new OutputStreamWriter(gzip, encoding);
        writer.write(str);
        writer.close();
        byte[] compressedBytes = out.toByteArray();
        return new String(Base64.encodeBase64(compressedBytes), encoding);
    } catch (Exception e) {
        e.printStackTrace();
        return null;
    }
}

From source file:Main.java

public static void closeQuietly(Writer writer) {

    if (writer != null) {
        try {/*w  w w  .  j av a2 s .c  o m*/
            writer.close();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            writer = null;
        }
    }
}

From source file:StreamConverter.java

static void writeOutput(String str) {

    try {/*  ww w.  jav  a2 s . c om*/
        FileOutputStream fos = new FileOutputStream("test.txt");
        Writer out = new OutputStreamWriter(fos, "UTF8");
        out.write(str);
        out.close();
    } catch (IOException e) {
        e.printStackTrace();
    }
}

From source file:Main.java

public static InputStream getUTF8Stream(String s) {
    try {// w  w  w  . j a va  2 s.  c o  m
        ByteArrayOutputStream bas = new ByteArrayOutputStream();
        Writer w = new OutputStreamWriter(bas, "utf-8");
        w.write(s);
        w.close();
        byte[] ba = bas.toByteArray();
        ByteArrayInputStream bis = new ByteArrayInputStream(ba);
        return bis;
    } catch (IOException e) {
        throw new RuntimeException("should not happen");
    }
}