Example usage for java.io FileOutputStream flush

Introduction

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

Prototype

public void flush() throws IOException 

Source Link

Document

Flushes this output stream and forces any buffered output bytes to be written out.

Usage

From source file:com.ibuildapp.romanblack.FanWallPlugin.data.Statics.java

/**
 * download file url and save it/*w  ww  . ja  v  a 2  s. c  om*/
 *
 * @param url
 */
public static String downloadFile(String url) {
    int BYTE_ARRAY_SIZE = 1024;
    int CONNECTION_TIMEOUT = 30000;
    int READ_TIMEOUT = 30000;

    // downloading cover image and saving it into file
    try {
        URL imageUrl = new URL(URLDecoder.decode(url));
        URLConnection conn = imageUrl.openConnection();
        conn.setConnectTimeout(CONNECTION_TIMEOUT);
        conn.setReadTimeout(READ_TIMEOUT);
        BufferedInputStream bis = new BufferedInputStream(conn.getInputStream());

        File resFile = new File(cachePath + File.separator + Utils.md5(url));
        if (!resFile.exists()) {
            resFile.createNewFile();
        }

        FileOutputStream fos = new FileOutputStream(resFile);
        int current = 0;
        byte[] buf = new byte[BYTE_ARRAY_SIZE];
        Arrays.fill(buf, (byte) 0);
        while ((current = bis.read(buf, 0, BYTE_ARRAY_SIZE)) != -1) {
            fos.write(buf, 0, current);
            Arrays.fill(buf, (byte) 0);
        }

        bis.close();
        fos.flush();
        fos.close();
        Log.d("", "");
        return resFile.getAbsolutePath();
    } catch (SocketTimeoutException e) {
        return null;
    } catch (IllegalArgumentException e) {
        return null;
    } catch (Exception e) {
        return null;
    }
}

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From source file:com.lee.sdk.utils.Utils.java

/**
 * /*from w w w . j  ava 2 s.c  o m*/
 * 
 * @param context Context Object
 * @param file ??
 * @param data ???
 * @param mode ?
 * @return ???
 */
public static boolean cache(Context context, String file, byte[] data, int mode) {
    boolean bResult = false;
    if (null == data) {
        data = new byte[0];
    }

    FileOutputStream fos = null;
    try {
        fos = context.openFileOutput(file, mode);
        fos.write(data);
        fos.flush();
        bResult = true;
    } catch (FileNotFoundException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        if (null != fos) {
            try {
                fos.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

    return bResult;
}

---

From source file:it.greenvulcano.util.txt.TextUtils.java

/**
 * Writes a text String into a file//ww  w .ja  va 2  s.  com
 * 
 * @param contentStrings
 *        The StringBuffer to be written into the file
 * @param file
 *        The destination file
 * @param endline
 *        The line terminator, if null or empty is used '\n'
 * @param append
 *        If true the data are appended to existent file
 * @throws IOException
 */
public static void writeFile(List<String> contentStrings, File file, String endline, boolean append)
        throws IOException {
    FileOutputStream out = null;
    try {
        if ((endline == null) || endline.equals("")) {
            endline = "\n";
        }
        out = new FileOutputStream(file, append);
        IOUtils.writeLines(contentStrings, endline, out);
        out.flush();
    } finally {
        if (out != null) {
            out.close();
        }
    }
}

---

From source file:com.funambol.foundation.util.MediaUtils.java

/**
 * Creates the thumbnail./*from w w  w .j  av  a2  s .com*/
 *
 * @param imageFile the image file
 * @param thumbFile the empty thumbnail file
 * @param thumbX the width of the thumbnail
 * @param thumbY the height of the thumbnail
 * @param imageName the image file name with extension
 * @param tolerance the percentage of tolerance before creating a thumbnail
 * @return true is the thumbnail has been created, false otherwise
 * @throws IOException if an error occurs
 */
private static boolean createThumbnail(File imageFile, File thumbFile, int thumbX, int thumbY, String imageName,
        double tolerance) throws IOException {

    FileInputStream fileis = null;
    ImageInputStream imageis = null;

    Iterator readers = null;

    try {

        readers = ImageIO.getImageReadersByFormatName(imageName.substring(imageName.lastIndexOf('.') + 1));
        if (readers == null || (!readers.hasNext())) {
            throw new IOException("File not supported");
        }

        ImageReader reader = (ImageReader) readers.next();

        fileis = new FileInputStream(imageFile);
        imageis = ImageIO.createImageInputStream(fileis);
        reader.setInput(imageis, true);

        // Determines thumbnail height, width and quality
        int thumbWidth = thumbX;
        int thumbHeight = thumbY;

        double thumbRatio = (double) thumbWidth / (double) thumbHeight;
        int imageWidth = reader.getWidth(0);
        int imageHeight = reader.getHeight(0);

        //
        // Don't create the thumbnail if the original file is smaller
        // than required size increased by % tolerance
        //
        if (imageWidth <= (thumbWidth * (1 + tolerance / 100))
                && imageHeight <= (thumbHeight * (1 + tolerance / 100))) {

            return false;
        }

        double imageRatio = (double) imageWidth / (double) imageHeight;
        if (thumbRatio < imageRatio) {
            thumbHeight = (int) (thumbWidth / imageRatio);
        } else {
            thumbWidth = (int) (thumbHeight * imageRatio);
        }

        ImageReadParam param = reader.getDefaultReadParam();
        param.setSourceSubsampling(3, 3, 0, 0);

        BufferedImage bi = reader.read(0, param);

        Image thumb = bi.getScaledInstance(thumbWidth, thumbHeight, Image.SCALE_SMOOTH);

        BufferedImage thumbImage = new BufferedImage(thumbWidth, thumbHeight, BufferedImage.TYPE_INT_RGB);
        Graphics2D graphics2D = thumbImage.createGraphics();
        graphics2D.setRenderingHint(RenderingHints.KEY_INTERPOLATION,
                RenderingHints.VALUE_INTERPOLATION_BILINEAR);
        graphics2D.drawImage(thumb, 0, 0, thumbWidth, thumbHeight, null);

        FileOutputStream fileOutputStream = new FileOutputStream(thumbFile);
        ImageIO.write(thumbImage, "jpg", fileOutputStream);

        thumb.flush();
        thumbImage.flush();
        fileOutputStream.flush();
        fileOutputStream.close();
        graphics2D.dispose();

    } finally {
        if (fileis != null) {
            fileis.close();
        }
        if (imageis != null) {
            imageis.close();
        }
    }

    return true;
}

---

From source file:com.pdftron.pdf.utils.Utils.java

public static String copyResourceToTempFolder(Context context, int resId, boolean force, String resourceName)
        throws PDFNetException {
    if (context == null) {
        throw new PDFNetException("", 0L, "com.pdftron.pdf.PDFNet", "copyResourceToTempFolder()",
                "Context cannot be null to initialize resource file.");
    } else {//from   w ww  .  java  2s .c o m
        File resFile = new File(context.getFilesDir() + File.separator + "resourceName");
        if (!resFile.exists() || force) {
            File filesDir = context.getFilesDir();
            StatFs stat = new StatFs(filesDir.getPath());
            long size = (long) stat.getAvailableBlocks() * (long) stat.getBlockSize();
            if (size < 2903023L) {
                throw new PDFNetException("", 0L, "com.pdftron.pdf.PDFNet", "copyResourceToTempFolder()",
                        "Not enough space available to copy resources file.");
            }

            Resources rs = context.getResources();

            try {
                InputStream e = rs.openRawResource(resId);
                FileOutputStream fos = context.openFileOutput(resourceName, 0);
                byte[] buffer = new byte[1024];

                int read;
                while ((read = e.read(buffer)) != -1) {
                    fos.write(buffer, 0, read);
                }

                e.close();
                fos.flush();
                fos.close();

            } catch (Resources.NotFoundException var13) {
                throw new PDFNetException("", 0L, "com.pdftron.pdf.PDFNet", "initializeResource()",
                        "Resource file ID does not exist.");
            } catch (FileNotFoundException var14) {
                throw new PDFNetException("", 0L, "com.pdftron.pdf.PDFNet", "initializeResource()",
                        "Resource file not found.");
            } catch (IOException var15) {
                throw new PDFNetException("", 0L, "com.pdftron.pdf.PDFNet", "initializeResource()",
                        "Error writing resource file to internal storage.");
            } catch (Exception var16) {
                throw new PDFNetException("", 0L, "com.pdftron.pdf.PDFNet", "initializeResource()",
                        "Unknown error.");
            }
        }

        return context.getFilesDir().getAbsolutePath();
    }
}

---

From source file:Main.java

public static void decrypt(String fileIn, String fileOut, byte key[])
        throws IOException, NoSuchAlgorithmException, NoSuchPaddingException, InvalidKeyException {
    FileInputStream fis = new FileInputStream(fileIn);
    FileOutputStream fos = new FileOutputStream(fileOut);

    // Length is 32 bytes
    //byte key[] = "1010110101010101010100101111001001001001001001011110111100000011010110101010101010100101111001001001001001001011110111100000011010110101010101010100101111001001001001001001011110111100000011010110101010101010100101111001001001001001001011110111100000011010110101010101010100101111001001001001001001011110111100000011010110101010101010100101111001001001001001001011110111100000011010110101010101010100101111001001001001001001011110111100000011010110101010101010100101111001001001001001001011110111100001111000011".getBytes("UTF-8");
    MessageDigest sha = MessageDigest.getInstance("SHA-256");
    key = sha.digest(key);/*  w  ww . ja  v  a 2s  . c  o m*/
    SecretKeySpec sks = new SecretKeySpec(key, "AES");
    Cipher cipher = Cipher.getInstance("AES");
    cipher.init(Cipher.DECRYPT_MODE, sks);

    CipherInputStream cis = new CipherInputStream(fis, cipher);
    int b;
    byte[] d = new byte[8];
    while ((b = cis.read(d)) != -1) {
        fos.write(d, 0, b);
    }

    fos.flush();
    fos.close();
    cis.close();
}

---

From source file:com.baidu.rigel.biplatform.tesseract.util.FileUtils.java

/**
 * ?/*  w w  w  . java  2s .  com*/
 * 
 * @param oldPath
 *            String  c:/fqf
 * @param newPath
 *            String ?? f:/fqf/ff
 * @return boolean
 * @throws Exception
 */
public static void copyFolder(String oldPath, String newPath) throws Exception {
    LOGGER.info(String.format(LogInfoConstants.INFO_PATTERN_FUNCTION_BEGIN, "copyFolder",
            "[oldPath:" + oldPath + "][newPath:+" + newPath + "]"));
    try {

        File newPathFile = new File(newPath);
        newPathFile.mkdirs();

        File oldPathFile = new File(oldPath);
        String[] file = oldPathFile.list();
        File temp = null;
        for (int i = 0; i < file.length; i++) {
            if (oldPath.endsWith(File.separator)) {
                temp = new File(oldPath + file[i]);
            } else {
                temp = new File(oldPath + File.separator + file[i]);
            }

            if (temp.isFile()) {
                FileInputStream input = new FileInputStream(temp);
                FileOutputStream output = new FileOutputStream(
                        newPath + File.separator + (temp.getName()).toString());
                byte[] b = new byte[1024 * 5];
                int len;
                while ((len = input.read(b)) != -1) {
                    output.write(b, 0, len);
                }
                output.flush();
                output.close();
                input.close();
            }
            if (temp.isDirectory()) {
                // ?
                copyFolder(oldPath + File.separator + file[i], newPath + File.separator + file[i]);
            }
        }
    } catch (Exception e) {
        LOGGER.info(String.format(LogInfoConstants.INFO_PATTERN_FUNCTION_EXCEPTION, "copyFolder",
                "[oldPath:" + oldPath + "][newPath:+" + newPath + "]"));
        throw e;

    }

    LOGGER.info(String.format(LogInfoConstants.INFO_PATTERN_FUNCTION_END, "copyFolder",
            "[oldPath:" + oldPath + "][newPath:+" + newPath + "]"));

}

---

From source file:it.greenvulcano.util.txt.TextUtils.java

/**
 * Writes a text String into a file/* w w  w . j  a  v a  2 s  .c  o m*/
 * 
 * @param contentStrings
 *        The list of strings to be written into the file
 * @param filename
 *        The name of the file
 * @param endline
 *        The line terminator, if null or empty is used '\n'
 * @param append
 *        If true the data are appended to existent file
 * @throws IOException
 */
public static void writeFile(List<String> contentStrings, String filename, String endline, boolean append)
        throws IOException {
    FileOutputStream out = null;
    try {
        filename = adjustPath(filename);
        if ((endline == null) || endline.equals("")) {
            endline = "\n";
        }
        out = new FileOutputStream(filename, append);
        IOUtils.writeLines(contentStrings, endline, out);
        out.flush();
    } finally {
        if (out != null) {
            out.close();
        }
    }
}

---

From source file:com.bamobile.fdtks.util.Tools.java

public static boolean saveFileToAppContextCacheDir(String fileName, byte[] data) {
    try {//from w  w w .j  a va 2  s .  c o  m
        File dir = MainActivity.getInstance().getApplicationContext().getCacheDir();
        File outputFile = new File(dir, fileName);
        if (!outputFile.exists()) {
            outputFile.createNewFile();
        }
        FileOutputStream outputStream = new FileOutputStream(outputFile);
        outputStream.write(data);
        outputStream.flush();
        outputStream.close();
    } catch (Exception e) {
        e.printStackTrace();
    }
    return true;
}

---

From source file:com.mindquarry.desktop.pool.PoolBase.java

public void addEntry(String id, Document doc) throws IOException {
    File entryFile = new File(poolFolder.getAbsolutePath() + "/" + id); //$NON-NLS-1$
    FileOutputStream fos = new FileOutputStream(entryFile);
    fos.write(doc.asXML().getBytes());/*from   ww w .j a v  a  2 s. c o m*/
    fos.flush();
    fos.close();
}

---

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