Example usage for java.io FileOutputStream flush

List of usage examples for java.io FileOutputStream flush

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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:at.ac.uniklu.mobile.sportal.util.Utils.java

/**
 * Loads a bitmap for the network or from a cached file, if it has already been downloaded before. If the file
 * is loaded for the first time, it is written to the cache to be available next time.
 * /*from  w  ww  .  ja v a2s  . c  o m*/
 * @param context
 * @param sourceUrl
 * @param cacheFileName
 * @return a bitmap or null if something went wrong
 */
public static Bitmap downloadBitmapWithCache(Context context, String sourceUrl, String cacheFileName)
        throws Exception {
    Bitmap bitmap = null;
    File cacheFile = new File(context.getCacheDir(), cacheFileName);

    boolean cached = cacheFile.exists();
    boolean cachedValid = cached && cacheFile.lastModified() > (System.currentTimeMillis() - MILLIS_PER_WEEK);

    if (cached && cachedValid) {
        // the requested file is cached, load it
        Log.d(TAG, "loading cached file: " + cacheFileName);
        bitmap = BitmapFactory.decodeFile(cacheFile.getAbsolutePath());
    } else {
        // the requested file is not cached, download it from the network
        Log.d(TAG, "file " + (cachedValid ? "too old" : "not cached") + ", downloading: " + sourceUrl);
        byte[] data = downloadFile(sourceUrl, 3);
        if (data != null) {
            bitmap = BitmapFactory.decodeByteArray(data, 0, data.length);
            if (bitmap != null) {
                // the download succeeded, cache the file so it is available next time
                FileOutputStream out = new FileOutputStream(cacheFile);
                out.write(data, 0, data.length);
                out.flush();
                out.close();
            } else {
                Log.e(TAG, "failed to download bitmap, may be an unsupported format: " + sourceUrl);
            }
        }
    }

    return bitmap;
}

From source file:com.ms.commons.test.tool.ExportDatabaseData.java

private static void dealExportCmd(JdbcTemplate jdbcTemplate, ExportCmd ec) throws Exception {
    System.out.println("Exporting data, type: " + ec.getType());

    File exportFile = getGeneFileName(ec.getType());

    MemoryDatabase memoryDatabase = querySqlListToMemoryDatabase(jdbcTemplate, ec.getSqlList());

    DataWriter dataWriter = DataWriterUtil.getDataWriter(ec.getType());
    if (dataWriter == null) {
        throw new MessageException("Cannot find data writer for: " + ec.getType());
    }/*from   w w w .  j  a va  2s.  co m*/
    FileOutputStream fos = new FileOutputStream(exportFile);
    try {
        dataWriter.write(memoryDatabase, fos, "UTF-8");
    } finally {
        fos.flush();
        fos.close();
    }

    System.out.println("Generated data to file: " + exportFile);
}

From source file:com.example.mediastock.util.Utilities.java

/**
 * It saves the image into the internal storage of the app.
 *
 * @param context the context/*from  w ww.j  ava 2s . co  m*/
 * @param type the directory type: video or image
 * @param bitmap the image
 * @param id the id of the image
 * @return the path of the image
 */
public static String saveImageToInternalStorage(Context context, String type, Bitmap bitmap, int id) {
    ContextWrapper cw = new ContextWrapper(context.getApplicationContext());

    File imageDir = cw.getDir("imageDir", Context.MODE_PRIVATE);

    // Create file image
    File file = new File(imageDir, type + id);

    FileOutputStream fos;
    try {

        fos = new FileOutputStream(file);
        bitmap.compress(Bitmap.CompressFormat.PNG, 100, fos);

        fos.flush();
        fos.close();
    } catch (Exception e) {
        e.printStackTrace();
    }

    return file.getName();
}

From source file:com.example.mediastock.util.Utilities.java

/**
 * Method to save a media file inside the directory typeDir. It writes the bytes of the stream into the file
 * @param type the directory type: music, video or image
 * @param context the context//  ww w . j  a  v a2s.  c  o  m
 * @param inputStream the stream
 * @param id the id of the media file
 * @return the path of the media file
 */
public static String saveMediaToInternalStorage(String type, Context context, InputStream inputStream, int id) {
    ContextWrapper cw = new ContextWrapper(context.getApplicationContext());

    File dir = cw.getDir(type + "Dir", Context.MODE_PRIVATE);

    // Create media file
    File file;

    if (type.equals(Utilities.MUSIC_DIR))
        file = new File(dir, type + id + ".mp3");
    else
        file = new File(dir, type + id);

    FileOutputStream fos;
    try {

        fos = new FileOutputStream(file);
        fos.write(Utilities.covertStreamToByte(inputStream));

        fos.flush();
        fos.close();
        inputStream.close();
    } catch (IOException e) {
        e.printStackTrace();
    }

    return file.getName();
}

From source file:Main.java

public static boolean copyFile(InputStream inputStream, File target) {
    boolean result = false;
    if (target == null) {
        return result;
    }/*from ww w .  j  a  v a2s .  c om*/

    FileOutputStream fileOutputStream = null;
    try {
        fileOutputStream = new FileOutputStream(target);
        byte[] buffer = new byte[1024];
        while (inputStream.read(buffer) > 0) {
            fileOutputStream.write(buffer);
        }
        result = true;
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        if (fileOutputStream != null) {
            try {
                fileOutputStream.flush();
                fileOutputStream.close();
            } catch (IOException e) {
            }
        }
    }

    return result;
}

From source file:com.alibaba.otter.shared.common.utils.NioUtilsPerformance.java

public static void copyTest(File source, File target) throws Exception {
    FileInputStream fis = null;/*from   www  . j av  a  2  s  .c o  m*/
    FileOutputStream fos = null;
    try {
        fis = new FileInputStream(source);
        fos = new FileOutputStream(target);
        target.createNewFile();

        byte[] bytes = new byte[16 * 1024];
        int n = -1;
        while ((n = fis.read(bytes, 0, bytes.length)) > 0) {
            fos.write(bytes, 0, n);
        }

        fos.flush();
    } finally {
        IOUtils.closeQuietly(fis);
        IOUtils.closeQuietly(fos);
    }
}

From source file:net.ftb.util.FileUtils.java

public static void backupExtract(String zipLocation, String outputLocation) {
    Logger.logInfo("Extracting (Backup way)");
    byte[] buffer = new byte[1024];
    ZipInputStream zis = null;//from  w w  w.j  ava2  s. co m
    ZipEntry ze;
    try {
        File folder = new File(outputLocation);
        if (!folder.exists()) {
            folder.mkdir();
        }
        zis = new ZipInputStream(new FileInputStream(zipLocation));
        ze = zis.getNextEntry();
        while (ze != null) {
            File newFile = new File(outputLocation, ze.getName());
            newFile.getParentFile().mkdirs();
            if (!ze.isDirectory()) {
                FileOutputStream fos = new FileOutputStream(newFile);
                int len;
                while ((len = zis.read(buffer)) > 0) {
                    fos.write(buffer, 0, len);
                }
                fos.flush();
                fos.close();
            }
            ze = zis.getNextEntry();
        }
    } catch (IOException ex) {
        Logger.logError("Error while extracting zip", ex);
    } finally {
        try {
            zis.closeEntry();
            zis.close();
        } catch (IOException e) {
        }
    }
}

From source file:ZipUtil.java

public static void unzipFileToFile(File flSource, File flTarget) throws IOException {
    Inflater oInflate = new Inflater(false);
    FileInputStream stmFileIn = new FileInputStream(flSource);
    FileOutputStream stmFileOut = new FileOutputStream(flTarget);
    InflaterInputStream stmInflateIn = new InflaterInputStream(stmFileIn, oInflate);

    try {/* w  w  w.java  2s.co  m*/
        inflaterInputStmToFileOutputStm(stmInflateIn, stmFileOut);
    } //end try
    finally {
        stmFileOut.flush();
        stmFileOut.close();
        stmInflateIn.close();
        stmFileIn.close();
    }
}

From source file:jBittorrentAPI.utils.IOManager.java

/**
 * Save the bytes in the stream to the file in parameter
 * @param is InputStream/*from   w ww  . j ava2 s .c  o m*/
 * @param filename String
 * @throws IOException
 */
public static void saveFromURL(InputStream is, String filename) throws IOException {
    FileOutputStream fos = new FileOutputStream(filename);
    int c;
    boolean noheader = true;
    while (true) {
        if ((c = is.read()) == -1)
            break;
        else {
            if (noheader) {
                fos.write(c);
                fos.flush();
            } else {
                if (c == '\n' && is.read() == '\r' && is.read() == '\n')
                    noheader = true;
            }
        }
    }
    fos.close();
}

From source file:Main.java

/**
 * Writes an element out to a file./* ww  w .j a va 2s . co  m*/
 * @param element The XML element to write out.
 * @param fileName The file name to write to. Existing file is overwriten.
 */
public static void writeElement(Element element, String fileName) {
    File file = new File(fileName);
    file.delete();
    DOMSource domSource = new DOMSource(element);
    FileOutputStream fos = null;
    try {
        fos = new FileOutputStream(file);
        StreamResult result = new StreamResult(fos);
        TransformerFactory transformerFactory = TransformerFactory.newInstance();
        Transformer transformer = transformerFactory.newTransformer();
        transformer.transform(domSource, result);
        fos.flush();
        fos.close();
    } catch (Exception e) {
        throw new RuntimeException("Failed to write XML element to:" + fileName, e);
    } finally {
        try {
            fos.flush();
        } catch (Exception e) {
        }
        try {
            fos.close();
        } catch (Exception e) {
        }
    }
}