Example usage for java.io BufferedInputStream BufferedInputStream

Introduction

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

Prototype

public BufferedInputStream(InputStream in, int size) 

Source Link

Document

Creates a BufferedInputStream with the specified buffer size, and saves its argument, the input stream in, for later use.

Usage

From source file:Utils.java

/**
 * Unpack an archive from a URL/*w w w.ja  v a 2  s  .co m*/
 * 
 * @param url
 * @param targetDir
 * @return the file to the url
 * @throws IOException
 */
public static File unpackArchive(URL url, File targetDir) throws IOException {
    if (!targetDir.exists()) {
        targetDir.mkdirs();
    }
    InputStream in = new BufferedInputStream(url.openStream(), 1024);
    // make sure we get the actual file
    File zip = File.createTempFile("arc", ".zip", targetDir);
    OutputStream out = new BufferedOutputStream(new FileOutputStream(zip));
    copyInputStream(in, out);
    out.close();
    return unpackArchive(zip, targetDir);
}

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From source file:Main.java

/**
 * Load Bitmap from a url/*from ww w .java 2  s.  co  m*/
 * @param url   bitmap url to be loaded
 * @return Bitmap object, null if could not be loaded
 */
public static Bitmap loadBitmap(String url) {
    Bitmap bitmap = null;
    InputStream is = null;
    BufferedOutputStream bos = null;
    try {
        is = new BufferedInputStream(new URL(url).openStream(), IO_BUFFER_SIZE);
        final ByteArrayOutputStream baos = new ByteArrayOutputStream();
        bos = new BufferedOutputStream(baos, IO_BUFFER_SIZE);
        copyStream(is, bos);
        bos.flush();
        final byte[] data = baos.toByteArray();
        bitmap = BitmapFactory.decodeByteArray(data, 0, data.length);
    } catch (IOException e) {
        // TODO Auto-generated catch block
        Log.e(TAG, "IOException in loadBitmap");
        e.printStackTrace();
    } catch (OutOfMemoryError e) {
        // TODO Auto-generated catch block
        Log.e(TAG, "OutOfMemoryError in loadBitmap");
        e.printStackTrace();
    } finally {
        closeStream(is);
        closeStream(bos);
    }
    return bitmap;
}

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From source file:Main.java

/**
 * Liefert das {@link Document} aus dem Stream.
 * /*w  w  w .  j a va2 s  . c om*/
 * @param inputStream {@link InputStream}
 * @return {@link Document}
 * @throws Exception Falls was schief geht.
 */
public static Document getDocument(final InputStream inputStream) throws Exception {
    InputStream is = inputStream;

    if (!(is instanceof BufferedInputStream)) {
        is = new BufferedInputStream(is, 8192 * 4);
    }

    return getDocument(new InputSource(is));
}

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From source file:Main.java

/**
 * Loads a bitmap from the specified url. This can take a while, so it should not
 * be called from the UI thread./*  ww w . j a v a 2 s  . com*/
 *
 * @param url The location of the bitmap asset
 *
 * @return The bitmap, or null if it could not be loaded
 */
public static Bitmap loadBitmap(String url) {
    Bitmap bitmap = null;
    InputStream in = null;
    BufferedOutputStream out = null;

    try {
        in = new BufferedInputStream(new URL(url).openStream(), IO_BUFFER_SIZE);

        final ByteArrayOutputStream dataStream = new ByteArrayOutputStream();
        out = new BufferedOutputStream(dataStream, IO_BUFFER_SIZE);
        copy(in, out);
        out.flush();

        final byte[] data = dataStream.toByteArray();
        //            BitmapFactory.Options options = new BitmapFactory.Options();
        //            options.inSampleSize = 2;
        bitmap = BitmapFactory.decodeByteArray(data, 0, data.length);
    } catch (IOException e) {
        Log.e(TAG, "Could not load Bitmap from: " + url);
    } finally {
        closeStream(in);
        closeStream(out);
    }

    return bitmap;
}

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From source file:com.mondospider.android.lib.LibHTTP.java

public static String get(String url) {
    String ReturnHTML = "";
    //      Log.d("LibHTTP->get->url",url);
    try {/*from  w w  w.j a va2 s.c  o  m*/
        URLConnection urlConn = new URL(url).openConnection();
        InputStream is = urlConn.getInputStream();
        BufferedInputStream bis = new BufferedInputStream(is, 16000);
        ByteArrayBuffer baf = new ByteArrayBuffer(50);
        int current = 0;
        while ((current = bis.read()) != -1) {
            baf.append((byte) current);
        }
        ReturnHTML = new String(baf.toByteArray());
    } catch (Exception e) {
        ReturnHTML = e.getMessage();
    }
    //        Log.d("LibHTTP->get->ReturnHTML", ReturnHTML);
    return ReturnHTML;
}

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From source file:com.textocat.textokit.morph.opencorpora.resource.DictionaryDeserializer.java

public static MorphDictionaryImpl from(InputStream in, String srcLabel) throws Exception {
    log.info("About to deserialize MorphDictionary from InputStream of {}...", srcLabel);
    long timeBefore = currentTimeMillis();
    InputStream is = new BufferedInputStream(in, DICTIONARY_READING_BUFFER_SIZE);
    ObjectInputStream ois = new ObjectInputStream(is);
    MorphDictionaryImpl dict;//from ww w  . java2s  .c  o  m
    try {
        // skip gram model
        @SuppressWarnings("unused")
        GramModel gm = (GramModel) ois.readObject();
        dict = (MorphDictionaryImpl) ois.readObject();
    } finally {
        IOUtils.closeQuietly(ois);
    }
    log.info("Deserialization of MorphDictionary finished in {} ms", currentTimeMillis() - timeBefore);
    return dict;
}

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From source file:Main.java

public static void copyFile(InputStream is, OutputStream os, boolean closeInputStream)

        throws IOException {
    try {//from  ww  w .ja v a  2  s .  co m

        if (!(is instanceof BufferedInputStream)) {

            is = new BufferedInputStream(is, 8192);
        }

        byte[] buffer = new byte[65536 * 2];

        while (true) {

            int len = is.read(buffer);

            if (len == -1) {

                break;
            }

            os.write(buffer, 0, len);
        }
    } finally {
        try {
            if (closeInputStream) {
                is.close();
            }
        } catch (IOException e) {

        }

        os.close();
    }
}

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From source file:Main.java

/**
 * Extract a zip resource into real files and directories
 * /* w ww  .j  av a  2  s  .co m*/
 * @param in typically given as getResources().openRawResource(R.raw.something)
 * @param directory target directory
 * @param overwrite indicates whether to overwrite existing files
 * @return list of files that were unpacked (if overwrite is false, this list won't include files
 *         that existed before)
 * @throws IOException
 */
public static List<File> extractZipResource(InputStream in, File directory, boolean overwrite)
        throws IOException {
    final int BUFSIZE = 2048;
    byte buffer[] = new byte[BUFSIZE];
    ZipInputStream zin = new ZipInputStream(new BufferedInputStream(in, BUFSIZE));
    List<File> files = new ArrayList<File>();
    ZipEntry entry;
    directory.mkdirs();
    while ((entry = zin.getNextEntry()) != null) {
        File file = new File(directory, entry.getName());
        files.add(file);
        if (overwrite || !file.exists()) {
            if (entry.isDirectory()) {
                file.mkdirs();
            } else {
                file.getParentFile().mkdirs(); // Necessary because some zip files lack directory entries.
                BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(file), BUFSIZE);
                int nRead;
                while ((nRead = zin.read(buffer, 0, BUFSIZE)) > 0) {
                    bos.write(buffer, 0, nRead);
                }
                bos.flush();
                bos.close();
            }
        }
    }
    zin.close();
    return files;
}

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From source file:most.voip.api.Utils.java

/**
 * Load UTF8withBOM or any ansi text file.
 * @param filename/*from w ww.  j  a va 2  s .com*/
 * @return  
 * @throws java.io.IOException
 */
public static String loadFileAsString(String filename) throws java.io.IOException {
    final int BUFLEN = 1024;
    BufferedInputStream is = new BufferedInputStream(new FileInputStream(filename), BUFLEN);
    try {
        ByteArrayOutputStream baos = new ByteArrayOutputStream(BUFLEN);
        byte[] bytes = new byte[BUFLEN];
        boolean isUTF8 = false;
        int read, count = 0;
        while ((read = is.read(bytes)) != -1) {
            if (count == 0 && bytes[0] == (byte) 0xEF && bytes[1] == (byte) 0xBB && bytes[2] == (byte) 0xBF) {
                isUTF8 = true;
                baos.write(bytes, 3, read - 3); // drop UTF8 bom marker
            } else {
                baos.write(bytes, 0, read);
            }
            count += read;
        }
        return isUTF8 ? new String(baos.toByteArray(), "UTF-8") : new String(baos.toByteArray());
    } finally {
        try {
            is.close();
        } catch (Exception ex) {
        }
    }
}

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From source file:de.nava.informa.utils.FormatDetector.java

/**
 * Guess the format of the specified news channel. For performance
 * reason it is wise to minimize the number of format guesses.
 *
 * @param url a url to the news channel.
 * @return The news channel synatx format, currently only RSS 0.91
 * ({@link de.nava.informa.core.ChannelFormat#RSS_0_91})
 * and RSS/RDF 1.0/* w  w w.  j  a  v  a2s . c  o m*/
 * ({@link de.nava.informa.core.ChannelFormat#RSS_1_0})
 * are recognized.
 * @throws UnsupportedFormatException in case a news channel format
 *                                    could not be guessed.
 * @throws IOException                if the given url cannot be read in.
 */
public static ChannelFormat getFormat(URL url) throws IOException, UnsupportedFormatException {

    logger.info("Trying to retrieve stream from " + url);
    BufferedInputStream in = new BufferedInputStream(url.openStream(), NR_FIRST_BYTES);
    return getFormat(in);
}

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