Example usage for java.io BufferedInputStream read

Introduction

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

Prototype

public synchronized int read(byte b[], int off, int len) throws IOException 

Source Link

Document

Reads bytes from this byte-input stream into the specified byte array, starting at the given offset.

Usage

From source file:msec.org.TarUtil.java

private static void archiveFile(File file, TarArchiveOutputStream taos, String dir) throws Exception {

    TarArchiveEntry entry = new TarArchiveEntry(dir + file.getName());

    entry.setSize(file.length());/*from  ww  w  .jav a 2  s  . co  m*/

    taos.putArchiveEntry(entry);

    BufferedInputStream bis = new BufferedInputStream(new FileInputStream(file));
    int count;
    byte data[] = new byte[BUFFERSZ];
    while ((count = bis.read(data, 0, BUFFERSZ)) != -1) {
        taos.write(data, 0, count);
    }

    bis.close();

    taos.closeArchiveEntry();
}

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From source file:es.deustotech.piramide.utils.tts.TextToSpeechWeb.java

private static void downloadFile(HttpResponse response, OutputStream os) throws IOException {
    final InputStream is = response.getEntity().getContent();
    long size = response.getEntity().getContentLength();
    final BufferedInputStream bis = new BufferedInputStream(is);
    final byte[] buffer = new byte[1024 * 1024]; // 1 MB
    long position = 0;
    while (position < size) {
        final int read = bis.read(buffer, 0, buffer.length);
        if (read <= 0) {
            break;
        }/*from ww  w  . j a v a 2 s . c  o  m*/
        os.write(buffer, 0, read);
        os.flush();

        position += read;
    }
    is.close();
}

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From source file:com.amazonaws.util.Md5Utils.java

/**
 * Computes the MD5 hash of the data in the given input stream and returns
 * it as an array of bytes./*w  ww  .j  a  v a2  s. c  o  m*/
 * Note this method closes the given input stream upon completion.
 */
public static byte[] computeMD5Hash(InputStream is) throws IOException {
    BufferedInputStream bis = new BufferedInputStream(is);
    try {
        MessageDigest messageDigest = MessageDigest.getInstance("MD5");
        byte[] buffer = new byte[SIXTEEN_K];
        int bytesRead;
        while ((bytesRead = bis.read(buffer, 0, buffer.length)) != -1) {
            messageDigest.update(buffer, 0, bytesRead);
        }
        return messageDigest.digest();
    } catch (NoSuchAlgorithmException e) {
        // should never get here
        throw new IllegalStateException(e);
    } finally {
        try {
            bis.close();
        } catch (Exception e) {
            LogFactory.getLog(Md5Utils.class).debug("Unable to close input stream of hash candidate: " + e);
        }
    }
}

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From source file:cn.guoyukun.spring.utils.FileCharset.java

public static String getCharset(final BufferedInputStream is) {
    String charset = DEFAULT_CHARSET;
    byte[] first3Bytes = new byte[3];
    try {/* w w  w.ja v a 2  s .  c  om*/
        boolean checked = false;
        is.mark(0);
        int read = is.read(first3Bytes, 0, 3);
        if (read == -1)
            return charset;
        if (first3Bytes[0] == (byte) 0xFF && first3Bytes[1] == (byte) 0xFE) {
            charset = "UTF-16LE";
            checked = true;
        } else if (first3Bytes[0] == (byte) 0xFE && first3Bytes[1] == (byte) 0xFF) {
            charset = "UTF-16BE";
            checked = true;
        } else if (first3Bytes[0] == (byte) 0xEF && first3Bytes[1] == (byte) 0xBB
                && first3Bytes[2] == (byte) 0xBF) {
            charset = "UTF-8";
            checked = true;
        }
        is.reset();
        if (!checked) {
            int loc = 0;

            while ((read = is.read()) != -1 && loc < 100) {
                loc++;
                if (read >= 0xF0)
                    break;
                if (0x80 <= read && read <= 0xBF) // ?BFGBK
                    break;
                if (0xC0 <= read && read <= 0xDF) {
                    read = is.read();
                    if (0x80 <= read && read <= 0xBF) // ? (0xC0 - 0xDF)
                        // (0x80
                        // - 0xBF),?GB?
                        continue;
                    else
                        break;
                } else if (0xE0 <= read && read <= 0xEF) {// ??
                    read = is.read();
                    if (0x80 <= read && read <= 0xBF) {
                        read = is.read();
                        if (0x80 <= read && read <= 0xBF) {
                            charset = "UTF-8";
                            break;
                        } else
                            break;
                    } else
                        break;
                }
            }
        }
        is.reset();
    } catch (Exception e) {
        e.printStackTrace();
    }

    return charset;
}

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From source file:ImageUtils.java

final public static ImageProperties getGifProperties(File file) throws FileNotFoundException, IOException {
    BufferedInputStream in = null;
    try {//from  w  ww.  j  a v  a  2 s  . c om
        in = new BufferedInputStream(new FileInputStream(file));
        byte[] buf = new byte[10];
        int count = in.read(buf, 0, 10);
        if (count < 10) {
            throw new RuntimeException("Not a valid Gif file!");
        }
        if ((buf[0]) != (byte) 'G' || (buf[1]) != (byte) 'I' || (buf[2]) != (byte) 'F') {
            throw new RuntimeException("Not a valid Gif file!");
        }

        int w1 = (buf[6] & 0xff) | (buf[6] & 0x80);
        int w2 = (buf[7] & 0xff) | (buf[7] & 0x80);
        int h1 = (buf[8] & 0xff) | (buf[8] & 0x80);
        int h2 = (buf[9] & 0xff) | (buf[9] & 0x80);

        int width = w1 + (w2 << 8);
        int height = h1 + (h2 << 8);

        return (new ImageProperties(width, height, null, "gif"));

    } finally {
        if (in != null) {
            try {
                in.close();
            } catch (IOException e) {
            }
        }
    }
}

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From source file:Main.java

/**
 *  Move the file in oldLocation to newLocation.
 */// w  ww . j a va  2s .c  om
public static void moveFile(String tempLocation, String newLocation) throws IOException {
    File oldLocation = new File(tempLocation);
    if (oldLocation != null && oldLocation.exists()) {
        BufferedInputStream reader = new BufferedInputStream(new FileInputStream(oldLocation));
        BufferedOutputStream writer = new BufferedOutputStream(new FileOutputStream(newLocation, false));
        try {
            byte[] buff = new byte[8192];
            int numChars;
            while ((numChars = reader.read(buff, 0, buff.length)) != -1) {
                writer.write(buff, 0, numChars);
            }
        } catch (IOException ex) {
        } finally {
            try {
                if (reader != null) {
                    writer.close();
                    reader.close();
                }
            } catch (IOException ex) {
            }
        }
    } else {
    }
}

---

From source file:Main.java

public static void copyFile(File oldLocation, File newLocation) throws IOException {
    if (oldLocation.exists()) {
        BufferedInputStream reader = new BufferedInputStream(new FileInputStream(oldLocation));
        BufferedOutputStream writer = new BufferedOutputStream(new FileOutputStream(newLocation, false));
        try {//  w  w w.  ja v a  2  s . c om
            byte[] buff = new byte[8192];
            int numChars;
            while ((numChars = reader.read(buff, 0, buff.length)) != -1) {
                writer.write(buff, 0, numChars);
            }
        } catch (IOException ex) {
            throw new IOException(
                    "IOException when transferring " + oldLocation.getPath() + " to " + newLocation.getPath());
        } finally {
            try {
                if (reader != null) {
                    writer.close();
                    reader.close();
                }
            } catch (IOException ex) {
                Log.e(TAG, "Error closing files when transferring " + oldLocation.getPath() + " to "
                        + newLocation.getPath());
            }
        }
    } else {
        throw new IOException("Old location does not exist when transferring " + oldLocation.getPath() + " to "
                + newLocation.getPath());
    }
}

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From source file:fr.pasteque.client.utils.URLTextGetter.java

public static void getBinary(final String url, final Map<String, String> getParams, final Handler h) {
    new Thread() {
        @Override/*from w  w  w  . ja  v  a2 s  . c  o  m*/
        public void run() {
            try {
                String fullUrl = url;
                if (getParams != null && getParams.size() > 0) {
                    fullUrl += "?";
                    for (String param : getParams.keySet()) {
                        fullUrl += URLEncoder.encode(param, "utf-8") + "="
                                + URLEncoder.encode(getParams.get(param), "utf-8") + "&";
                    }
                }
                if (fullUrl.endsWith("&")) {
                    fullUrl = fullUrl.substring(0, fullUrl.length() - 1);
                }
                HttpClient client = new DefaultHttpClient();
                HttpResponse response = null;
                HttpGet req = new HttpGet(fullUrl);
                response = client.execute(req);
                int status = response.getStatusLine().getStatusCode();
                if (status == HttpStatus.SC_OK) {
                    // Get http response
                    byte[] content = null;
                    try {
                        final int size = 10240;
                        ByteArrayOutputStream bos = new ByteArrayOutputStream(size);
                        byte[] buffer = new byte[size];
                        BufferedInputStream bis = new BufferedInputStream(response.getEntity().getContent(),
                                size);
                        int read = bis.read(buffer, 0, size);
                        while (read != -1) {
                            bos.write(buffer, 0, read);
                            read = bis.read(buffer, 0, size);
                        }
                        content = bos.toByteArray();
                    } catch (IOException ioe) {
                        ioe.printStackTrace();
                    }
                    if (h != null) {
                        Message m = h.obtainMessage();
                        m.what = SUCCESS;
                        m.obj = content;
                        m.sendToTarget();
                    }
                } else {
                    if (h != null) {
                        Message m = h.obtainMessage();
                        m.what = STATUS_NOK;
                        m.obj = new Integer(status);
                        m.sendToTarget();
                    }
                }
            } catch (IOException e) {
                if (h != null) {
                    Message m = h.obtainMessage();
                    m.what = ERROR;
                    m.obj = e;
                    m.sendToTarget();
                }
            }
        }
    }.start();
}

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From source file:Main.java

public static boolean prepareDex(Context context, File dexInternalStoragePath, String dexFile) {
    BufferedInputStream bis = null;
    OutputStream dexWriter = null;

    try {/*from   w  w  w  . j  av  a2s .co m*/
        bis = new BufferedInputStream(context.getAssets().open(dexFile));
        dexWriter = new BufferedOutputStream(new FileOutputStream(dexInternalStoragePath));
        byte[] buf = new byte[BUF_SIZE];
        int len;
        while ((len = bis.read(buf, 0, BUF_SIZE)) > 0) {
            dexWriter.write(buf, 0, len);
        }
        dexWriter.close();
        bis.close();
        return true;
    } catch (IOException e) {
        if (dexWriter != null) {
            try {
                dexWriter.close();
            } catch (IOException ioe) {
                ioe.printStackTrace();
            }
        }
        if (bis != null) {
            try {
                bis.close();
            } catch (IOException ioe) {
                ioe.printStackTrace();
            }
        }
        return false;
    }
}

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From source file:fr.pasteque.client.utils.URLTextGetter.java

public static void getText(final String url, final Map<String, String> getParams,
        final Map<String, String> postParams, final Handler h) {
    new Thread() {
        @Override//from w w w.j a v a2  s .  c om
        public void run() {
            try {
                String fullUrl = url;
                if (getParams != null && getParams.size() > 0) {
                    fullUrl += "?";
                    for (String param : getParams.keySet()) {
                        fullUrl += URLEncoder.encode(param, "utf-8") + "="
                                + URLEncoder.encode(getParams.get(param), "utf-8") + "&";
                    }
                }
                if (fullUrl.endsWith("&")) {
                    fullUrl = fullUrl.substring(0, fullUrl.length() - 1);
                }
                HttpClient client = new DefaultHttpClient();
                HttpResponse response = null;
                if (postParams == null) {
                    HttpGet req = new HttpGet(fullUrl);
                    response = client.execute(req);
                } else {
                    HttpPost req = new HttpPost(fullUrl);
                    List<NameValuePair> args = new ArrayList<NameValuePair>();
                    for (String key : postParams.keySet()) {
                        String value = postParams.get(key);
                        args.add(new BasicNameValuePair(key, value));
                    }
                    UrlEncodedFormEntity entity = new UrlEncodedFormEntity(args, HTTP.UTF_8);
                    req.setEntity(entity);
                    response = client.execute(req);
                }
                int status = response.getStatusLine().getStatusCode();
                if (status == HttpStatus.SC_OK) {
                    // Get http response
                    String content = "";
                    try {
                        final int size = 10240;
                        ByteArrayOutputStream bos = new ByteArrayOutputStream(size);
                        byte[] buffer = new byte[size];
                        BufferedInputStream bis = new BufferedInputStream(response.getEntity().getContent(),
                                size);
                        int read = bis.read(buffer, 0, size);
                        while (read != -1) {
                            bos.write(buffer, 0, read);
                            read = bis.read(buffer, 0, size);
                        }
                        content = new String(bos.toByteArray());
                    } catch (IOException ioe) {
                        ioe.printStackTrace();
                    }
                    if (h != null) {
                        Message m = h.obtainMessage();
                        m.what = SUCCESS;
                        m.obj = content;
                        m.sendToTarget();
                    }
                } else {
                    if (h != null) {
                        Message m = h.obtainMessage();
                        m.what = STATUS_NOK;
                        m.obj = new Integer(status);
                        m.sendToTarget();
                    }
                }
            } catch (IOException e) {
                if (h != null) {
                    Message m = h.obtainMessage();
                    m.what = ERROR;
                    m.obj = e;
                    m.sendToTarget();
                }
            }
        }
    }.start();
}

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