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:Main.java

public static Bitmap getBitmapFromURL(String urlString) {
    Bitmap bitmap = null;/*from  w  ww. j a  v a2s  .c om*/
    InputStream in = null;
    BufferedOutputStream out = null;
    try {
        in = new BufferedInputStream(new URL(urlString).openStream(), 1024 * 4);
        final ByteArrayOutputStream dataStream = new ByteArrayOutputStream();
        out = new BufferedOutputStream(dataStream, 1024 * 4);
        byte[] buffer = new byte[1024];
        int len = -1;
        while ((len = in.read(buffer)) != -1) {
            out.write(buffer, 0, len);
        }
        out.flush();
        byte[] data = dataStream.toByteArray();
        bitmap = BitmapFactory.decodeByteArray(data, 0, data.length);
        data = null;
        return bitmap;
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        try {
            in.close();
            out.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    return bitmap;
}

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From source file:Main.java

public static boolean downloadUrlToStream(String urlString, OutputStream outputStream) {
    HttpURLConnection urlConnection = null;
    BufferedOutputStream out = null;
    BufferedInputStream in = null;
    try {/*from  ww w  . ja  va2 s .c  om*/
        final URL url = new URL(urlString);
        urlConnection = (HttpURLConnection) url.openConnection();
        in = new BufferedInputStream(urlConnection.getInputStream(), 8 * 1024);
        out = new BufferedOutputStream(outputStream, 8 * 1024);
        int b;
        while ((b = in.read()) != -1) {
            out.write(b);
        }
        return true;
    } catch (final IOException e) {
        e.printStackTrace();
    } finally {
        if (urlConnection != null) {
            urlConnection.disconnect();
        }
        try {
            if (out != null) {
                out.close();
            }
            if (in != null) {
                in.close();
            }
        } catch (final IOException e) {
            e.printStackTrace();
        }
    }
    return false;
}

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From source file:Main.java

public static byte[] loadImageDataFromWeb(String url) {

    byte[] imageData = null;
    try {/*from www  . j  a  va 2 s.  c  om*/

        URLConnection connection = new URL(url).openConnection();
        InputStream stream = connection.getInputStream();
        //BufferedInputStream in=new BufferedInputStream(stream);//default 8k buffer
        BufferedInputStream in = new BufferedInputStream(stream, 10240);//YG: 10k=10240, 2x8k=16384
        ByteArrayOutputStream out = new ByteArrayOutputStream(10240);
        int read;
        byte[] b = new byte[4096];

        while ((read = in.read(b)) != -1) {
            out.write(b, 0, read);
        }

        out.flush();
        out.close();

        imageData = out.toByteArray();

    } catch (Exception e) {

        Log.w(TAG, "Exc=" + e);
        return null;
    }

    return imageData;
}

---

From source file:Main.java

public static Bitmap getAndSetBitmapFromNet(String urlPath) {

    Bitmap bm = null;//from   w  w  w.  j a  va  2 s  .  co  m

    if (urlPath != null) {
        try {
            BufferedInputStream bis = new BufferedInputStream(new URL(urlPath).openStream(), 1024);
            final ByteArrayOutputStream dataStream = new ByteArrayOutputStream();
            BufferedOutputStream out = new BufferedOutputStream(dataStream, 1024);
            copy(bis, out);
            out.flush();
            final byte[] data = dataStream.toByteArray();
            bm = BitmapFactory.decodeByteArray(data, 0, data.length);
            Log.i(I, "data.length: " + data.length);
            out.close();
            dataStream.close();
            bis.close();
            bm = processBitmap(bm);
        } catch (IOException e) {
            Log.i(I, "URL Connection or Bitmap processing Exception");
            e.printStackTrace();
        }
    }
    return bm;
}

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From source file:Main.java

/**
 * Determines if the given stream contains XML content. The stream will be
 * buffered and reset if necessary./*  ww  w .  ja va2s  .com*/
 * 
 * @param stream
 *            The InputStream to read.
 * @return true if the stream contains XML content; false otherwise.
 */
public static boolean isXML(InputStream stream) {
    if (!stream.markSupported()) {
        stream = new BufferedInputStream(stream, 1024);
    }
    stream.mark(1024);
    byte[] bytes = new byte[1024];
    try {
        try {
            stream.read(bytes);
        } finally {
            stream.reset();
        }
    } catch (IOException iox) {
        throw new RuntimeException("Failed to read or reset stream. " + iox.getMessage());
    }
    try {
        XMLInputFactory factory = XMLInputFactory.newInstance();
        XMLStreamReader reader = factory.createXMLStreamReader(new ByteArrayInputStream(bytes));
        // If XML, now in START_DOCUMENT state; seek document element.
        reader.nextTag();
    } catch (XMLStreamException xse) {
        return false;
    }
    return true;
}

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From source file:com.digitallizard.bbcnewsreader.resource.web.ImageDownloader.java

public static byte[] getImage(URL url) throws Exception {
    URLConnection connection = url.openConnection();

    InputStream stream = connection.getInputStream();
    BufferedInputStream inputbuffer = new BufferedInputStream(stream, 8000);

    ByteArrayBuffer arraybuffer = new ByteArrayBuffer(50);
    int current = 0;
    while ((current = inputbuffer.read()) != -1) {
        arraybuffer.append((byte) current);
    }//w  ww .j a  v a2  s.  co  m

    byte[] image = arraybuffer.toByteArray();

    return image;
}

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From source file:Main.java

/**
 * Extracts the whole contents of in_file to out_dir.
 * @param in_file A file object pointing to a zip file.
 * @param out_dir A directory where the contents of the file should be placed.
 * @throws IOException if there's a problem with one of the files
 *///from  ww w. j av  a  2 s.co  m
public static void zipExtract(File in_file, File out_dir) throws IOException {
    InputStream is = new FileInputStream(in_file);
    BufferedInputStream bis = new BufferedInputStream(is, BUFFER_SIZE);
    zipExtract(bis, out_dir);
}

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From source file:Main.java

public static boolean bitmapToOutPutStream(final Bitmap bitmap, OutputStream outputStream) {

    BufferedOutputStream out = null;
    BufferedInputStream in = null;
    try {/*w  w w .j av  a2 s  . co  m*/
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        bitmap.compress(Bitmap.CompressFormat.PNG, 100, baos);
        InputStream inputStream = new ByteArrayInputStream(baos.toByteArray());

        in = new BufferedInputStream(inputStream, 8 * 1024);
        out = new BufferedOutputStream(outputStream, 8 * 1024);

        int b;
        while ((b = in.read()) != -1) {
            out.write(b);
        }
        return true;
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        try {
            if (out != null) {
                out.close();
            }
            if (in != null) {
                in.close();
            }
        } catch (final IOException e) {
            e.printStackTrace();
        }
    }
    return false;
}

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From source file:Main.java

private static void zipFile(ZipOutputStream zipOutputStream, String sourcePath) throws IOException {

    java.io.File files = new java.io.File(sourcePath);
    java.io.File[] fileList = files.listFiles();

    String entryPath = "";
    BufferedInputStream input = null;
    for (java.io.File file : fileList) {
        if (file.isDirectory()) {
            zipFile(zipOutputStream, file.getPath());
        } else {/*from w  w  w.  ja  v a2s  .c  o  m*/
            byte data[] = new byte[BUFFER_SIZE];
            FileInputStream fileInputStream = new FileInputStream(file.getPath());
            input = new BufferedInputStream(fileInputStream, BUFFER_SIZE);
            entryPath = file.getAbsolutePath().replace(parentPath, "");

            ZipEntry entry = new ZipEntry(entryPath);
            zipOutputStream.putNextEntry(entry);

            int count;
            while ((count = input.read(data, 0, BUFFER_SIZE)) != -1) {
                zipOutputStream.write(data, 0, count);
            }
            input.close();
        }
    }

}

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From source file:Main.java

private static void copy(InputStream in, OutputStream out) throws IOException {
    out = new BufferedOutputStream(out, 0x1000);
    in = new BufferedInputStream(in, 0x1000);

    // Copy the contents from the input stream to the output stream.
    while (true) {
        int b = in.read();
        if (b == -1) {
            break;
        }//from ww w  .ja v  a  2 s  .  c o m
        out.write(b);
    }
    out.flush();
}

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