Example usage for java.io BufferedInputStream read

Introduction

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

Prototype

public int read(byte b[]) throws IOException 

Source Link

Document

Reads up to b.length bytes of data from this input stream into an array of bytes.

Usage

From source file:Main.java

/*****************************************************
 *
 * Returns the bytes from an input stream, or an exception
 * if there was an error.//from w  w w . j av a 2s. c om
 *
 *****************************************************/
private static Object getBytes(BufferedInputStream bis) throws Exception {
    ByteArrayOutputStream baos = new ByteArrayOutputStream(bis.available());

    byte[] buffer = new byte[READ_BUFFER_SIZE_IN_BYTES];

    int byteCount = -1;

    while ((byteCount = bis.read(buffer)) >= 0) {
        baos.write(buffer, 0, byteCount);
    }

    return (baos.toByteArray());
}

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From source file:de.rub.syssec.saaf.analysis.steps.extract.ApkUnzipper.java

/**
 * Extracts the given archive into the given destination directory
 * //w w  w . j a  va 2s.  c o m
 * @param archive
 *            - the file to extract
 * @param dest
 *            - the destination directory
 * @throws Exception
 */
public static void extractArchive(File archive, File destDir) throws IOException {

    if (!destDir.exists()) {
        destDir.mkdir();
    }

    ZipFile zipFile = new ZipFile(archive);
    Enumeration<? extends ZipEntry> entries = zipFile.entries();

    byte[] buffer = new byte[16384];
    int len;
    while (entries.hasMoreElements()) {
        ZipEntry entry = entries.nextElement();

        String entryFileName = entry.getName();

        File dir = buildDirectoryHierarchyFor(entryFileName, destDir);
        if (!dir.exists()) {
            dir.mkdirs();
        }

        if (!entry.isDirectory()) {

            File file = new File(destDir, entryFileName);

            BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(file));

            BufferedInputStream bis = new BufferedInputStream(zipFile.getInputStream(entry));

            while ((len = bis.read(buffer)) > 0) {
                bos.write(buffer, 0, len);
            }

            bos.flush();
            bos.close();
            bis.close();
        }
    }
    zipFile.close();
}

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From source file:Main.java

public static byte[] loadImageDataFromWeb(String url) {

    byte[] imageData = null;
    try {//from   www. ja  v a 2  s  .  c o m

        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;
}

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From source file:Main.java

/** Downloads a file from the specified URL and stores the file to the specified location 
 * @param fileUrl the URL from which the file should be downloaded
 * @param storageLocation the location to which the downloaded file should be stored. If the file exists, it will
 * be overridden! /*from   www. java2s .  c o m*/
 * @throws IOException */
public static void downloadFileFromWebserver(String fileUrl, String storageLocation) throws IOException {
    URL url = new URL(fileUrl);
    File file = new File(storageLocation);

    URLConnection urlConnection = url.openConnection();
    InputStream inputStream = urlConnection.getInputStream();
    BufferedInputStream bufferedInputStream = new BufferedInputStream(inputStream);
    FileOutputStream fileOutputStream = new FileOutputStream(file);

    byte[] buffer = new byte[1024];
    int bytesInBuffer = 0;
    while ((bytesInBuffer = bufferedInputStream.read(buffer)) != -1) {
        fileOutputStream.write(buffer, 0, bytesInBuffer);
    }

    fileOutputStream.close();
}

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From source file:Main.java

/**
 * Method to save audio file to SD card//  w  w w. ja  v a2 s.c  o  m
 * @param course_title, title of course
 * @param format, the file format, for example .mp3, .txt
 */
public static boolean copyToStorage(File source_file, String course_title, String format) {

    File output_file = getEmptyFileWithStructuredPath(course_title, format);

    try {
        byte[] buffer = new byte[4096];
        int bytesToHold;

        BufferedInputStream bis = new BufferedInputStream(new FileInputStream(source_file));
        BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(output_file));

        while ((bytesToHold = bis.read(buffer)) != -1) {
            bos.write(buffer, 0, bytesToHold);
        }

        bos.flush();
        bos.close();

        return true;

    } catch (FileNotFoundException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }

    return false;
}

---

From source file:Main.java

public static Bitmap loadImageFromUrl(String url) {
    ByteArrayOutputStream out = null;
    Bitmap bitmap = null;//from w  w w  .j av a 2 s .  c  o m
    int BUFFER_SIZE = 1024 * 8;
    try {
        BufferedInputStream in = new BufferedInputStream(new URL(url).openStream(), BUFFER_SIZE);
        out = new ByteArrayOutputStream(BUFFER_SIZE);
        int length = 0;
        byte[] tem = new byte[BUFFER_SIZE];
        length = in.read(tem);
        while (length != -1) {
            out.write(tem, 0, length);
            out.flush();
            length = in.read(tem);
        }
        in.close();
        if (out.toByteArray().length != 0) {
            bitmap = BitmapFactory.decodeByteArray(out.toByteArray(), 0, out.size());
        } else {
            out.close();
            return null;
        }
        out.close();
    } catch (OutOfMemoryError e) {

        out.reset();
        BitmapFactory.Options opts = new BitmapFactory.Options();
        opts.inSampleSize = 2;
        opts.inJustDecodeBounds = false;
        bitmap = BitmapFactory.decodeByteArray(out.toByteArray(), 0, out.size(), opts);
        return bitmap;
    } catch (Exception e) {

        return bitmap;
    }
    return bitmap;
}

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From source file:com.cloudera.recordbreaker.analyzer.UnknownTextDataDescriptor.java

public static boolean isTextData(FileSystem fs, Path p) {
    try {/* w  ww . j  a v a 2  s  . c  o  m*/
        BufferedInputStream in = new BufferedInputStream(fs.open(p));
        try {
            byte buf[] = new byte[1024];
            int numBytes = in.read(buf);
            if (numBytes < 0) {
                return false;
            }
            int numASCIIChars = 0;
            for (int i = 0; i < numBytes; i++) {
                if (buf[i] >= 32 && buf[i] < 128) {
                    numASCIIChars++;
                }
            }
            return ((numASCIIChars / (1.0 * numBytes)) > asciiThreshold);
        } finally {
            in.close();
        }
    } catch (IOException iex) {
        return false;
    }
}

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From source file:Main.java

public static boolean copyFile2(File src, File dst) {
    FileInputStream i;//from w w w  .j  av a 2  s.c  om
    try {
        i = new FileInputStream(src);
        BufferedInputStream in = new BufferedInputStream(i);
        FileOutputStream o = new FileOutputStream(dst);
        BufferedOutputStream out = new BufferedOutputStream(o);
        byte[] b = new byte[1024 * 5];
        int len;
        while ((len = in.read(b)) != -1) {
            out.write(b, 0, len);
        }
        out.flush();
        in.close();
        out.close();
        o.close();
        i.close();
        return true;
    } catch (IOException e) {
        e.printStackTrace();
        return false;
    }
}

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From source file:Main.java

public static void copyToMemory(Context context, String srcFilePath, String dictFileName) throws IOException {
    File srcFile = new File(srcFilePath);
    if (!srcFile.exists() || srcFile.isDirectory()) {
        return;/*  www.j  a  va2 s  .  c  o  m*/
    }
    BufferedInputStream inBufferedInputStream = new BufferedInputStream(new FileInputStream(srcFile));
    FileOutputStream fos = context.openFileOutput(dictFileName, 0);
    BufferedOutputStream bos = new BufferedOutputStream(fos);
    byte[] b = new byte[1024 * 4];
    int len;
    while ((len = inBufferedInputStream.read(b)) != -1) {
        bos.write(b, 0, len);
        bos.flush();
    }
    inBufferedInputStream.close();
    bos.close();
}

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From source file:Main.java

public static void copyFile(File in, File out) throws IOException {
    // avoids copying a file to itself
    if (in.equals(out)) {
        return;/*from w  w w .  ja v a  2  s.c  om*/
    }
    // ensure the output file location exists
    out.getCanonicalFile().getParentFile().mkdirs();

    BufferedInputStream fis = new BufferedInputStream(new FileInputStream(in));
    BufferedOutputStream fos = new BufferedOutputStream(new FileOutputStream(out));

    // a temporary buffer to read into
    byte[] tmpBuffer = new byte[8192];
    int len = 0;
    while ((len = fis.read(tmpBuffer)) != -1) {
        // add the temp data to the output
        fos.write(tmpBuffer, 0, len);
    }
    // close the input stream
    fis.close();
    // close the output stream
    fos.flush();
    fos.close();
}

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