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

/**
 * Compress a String to a zip file that has only one entry like zipName
 * The name shouldn't have .zip//from w w  w .  j  a va2 s  .c o m
 * 
 * @param content
 * @param fName
 * @throws IOException 
 */
public static void zipAContentAsFileName(String fName, String content, String charset) throws IOException {
    ByteArrayInputStream bais = new ByteArrayInputStream(content.getBytes(charset));
    BufferedInputStream bis = new BufferedInputStream(bais);

    File f = new File(fName);
    File parentFile = f.getParentFile();
    if (!parentFile.exists()) {
        parentFile.mkdirs();
    }
    ZipOutputStream zf = new ZipOutputStream(new BufferedOutputStream(new FileOutputStream(f + ".zip")));

    ZipEntry entry = new ZipEntry(f.getName());
    zf.putNextEntry(entry);
    byte[] barr = new byte[8192];
    int len = 0;
    while ((len = bis.read(barr)) != -1) {
        zf.write(barr, 0, len);
    }
    zf.flush();
    zf.close();
    bis.close();
    bais.close();
}

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From source file:azkaban.utils.FileIOUtils.java

public static Pair<Integer, Integer> readUtf8File(File file, int offset, int length, OutputStream stream)
        throws IOException {
    byte[] buffer = new byte[length];

    FileInputStream fileStream = new FileInputStream(file);

    long skipped = fileStream.skip(offset);
    if (skipped < offset) {
        fileStream.close();/*  w ww .j  a  va2 s. c o m*/
        return new Pair<Integer, Integer>(0, 0);
    }

    BufferedInputStream inputStream = null;
    try {
        inputStream = new BufferedInputStream(fileStream);
        inputStream.read(buffer);
    } finally {
        IOUtils.closeQuietly(inputStream);
    }

    Pair<Integer, Integer> utf8Range = getUtf8Range(buffer, 0, length);
    stream.write(buffer, utf8Range.getFirst(), utf8Range.getSecond());

    return new Pair<Integer, Integer>(offset + utf8Range.getFirst(), utf8Range.getSecond());
}

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From source file:dk.microting.softkeyboard.autoupdateapk.AutoUpdateApk.java

private static String MD5Hex(String filename) {
    final int BUFFER_SIZE = 8192;
    byte[] buf = new byte[BUFFER_SIZE];
    int length;//w w  w.j av a  2s  .c  om
    try {
        FileInputStream fis = new FileInputStream(filename);
        BufferedInputStream bis = new BufferedInputStream(fis);
        MessageDigest md = java.security.MessageDigest.getInstance("MD5");
        while ((length = bis.read(buf)) != -1) {
            md.update(buf, 0, length);
        }

        byte[] array = md.digest();
        StringBuffer sb = new StringBuffer();
        for (int i = 0; i < array.length; ++i) {
            sb.append(Integer.toHexString((array[i] & 0xFF) | 0x100).substring(1, 3));
        }
        Log.v(TAG, "md5sum: " + sb.toString());
        return sb.toString();
    } catch (Exception e) {
        e.printStackTrace();
    }
    return "md5bad";
}

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

/**
 * Load UTF8withBOM or any ansi text file.
 * @param filename/*from ww w .  ja  v  a 2s  . c  om*/
 * @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:Main.java

public static boolean downloadFile(File file, URL url) throws IOException {
    BufferedInputStream bis = null;
    BufferedOutputStream bos = null;
    HttpURLConnection conn = null;
    try {// w w w  . j  a  v  a2 s .co m
        conn = (HttpURLConnection) url.openConnection();
        bis = new BufferedInputStream(conn.getInputStream());
        bos = new BufferedOutputStream(new FileOutputStream(file));

        int contentLength = conn.getContentLength();

        byte[] buffer = new byte[BUFFER_SIZE];
        int read = 0;
        int count = 0;
        while ((read = bis.read(buffer)) != -1) {
            bos.write(buffer, 0, read);
            count += read;
        }
        if (count < contentLength)
            return false;
        int responseCode = conn.getResponseCode();
        if (responseCode / 100 != 2) {
            // error
            return false;
        }
        // finished
        return true;
    } finally {
        try {
            bis.close();
            bos.close();
            conn.disconnect();
        } catch (Exception e) {
        }
    }
}

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From source file:com.runwaysdk.controller.ErrorUtility.java

private static String decompress(String message) {
    try {/*from   w  w  w.  ja  v a2 s.c om*/
        byte[] bytes = Base64.decode(message);

        ByteArrayInputStream bis = new ByteArrayInputStream(bytes);
        BufferedInputStream bufis = new BufferedInputStream(new GZIPInputStream(bis));
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        byte[] buf = new byte[1024];
        int len;
        while ((len = bufis.read(buf)) > 0) {
            bos.write(buf, 0, len);
        }
        String retval = bos.toString();
        bis.close();
        bufis.close();
        bos.close();
        return retval;
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

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From source file:com.sec.ose.osi.util.tools.FileOperator.java

public static void copyFile(File pSource, File pDest) throws FileNotFoundException {

    if (pSource == null)
        throw new FileNotFoundException("Source file is not found");

    if (pSource.exists() == false)
        throw new FileNotFoundException(pSource.getPath());

    if (pDest == null)
        throw new FileNotFoundException("Report file is not found");

    BufferedInputStream bi = null;
    BufferedOutputStream bo = null;

    try {/* w  w w . j av a 2  s.  c  o  m*/
        bi = new BufferedInputStream(new FileInputStream(pSource)); // FileNotFoundExeption
        bo = new BufferedOutputStream(new FileOutputStream(pDest));

        byte buffer[] = new byte[BUF_SIZE];

        int readByte = 0;

        while ((readByte = bi.read(buffer)) != -1) { // IOException
            bo.write(buffer, 0, readByte);

        }

    } catch (FileNotFoundException e) {
        log.warn(e);
        throw e;
    } catch (IOException e) {
        log.warn(e);
    } finally {

        if (bo != null) {
            try {
                bo.flush();

            } catch (IOException e) {
                // TODO Auto-generated catch block
                log.warn(e);
            }
            try {
                bo.close();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                log.warn(e);
            }

            bo = null;
        }
        if (bi != null) {
            try {
                bi.close();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                log.warn(e);
            }
            bi = null;
        }
    }

}

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From source file:azkaban.utils.FileIOUtils.java

public static LogData readUtf8File(File file, int fileOffset, int length) throws IOException {
    byte[] buffer = new byte[length];
    FileInputStream fileStream = new FileInputStream(file);

    long skipped = fileStream.skip(fileOffset);
    if (skipped < fileOffset) {
        fileStream.close();/*ww w  .  ja  v a 2s .c o  m*/
        return new LogData(fileOffset, 0, "");
    }

    BufferedInputStream inputStream = null;
    int read = 0;
    try {
        inputStream = new BufferedInputStream(fileStream);
        read = inputStream.read(buffer);
    } finally {
        IOUtils.closeQuietly(inputStream);
    }

    if (read <= 0) {
        return new LogData(fileOffset, 0, "");
    }
    Pair<Integer, Integer> utf8Range = getUtf8Range(buffer, 0, read);
    String outputString = new String(buffer, utf8Range.getFirst(), utf8Range.getSecond());

    return new LogData(fileOffset + utf8Range.getFirst(), utf8Range.getSecond(), outputString);
}

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From source file:azkaban.utils.FileIOUtils.java

public static JobMetaData readUtf8MetaDataFile(File file, int fileOffset, int length) throws IOException {
    byte[] buffer = new byte[length];
    FileInputStream fileStream = new FileInputStream(file);

    long skipped = fileStream.skip(fileOffset);
    if (skipped < fileOffset) {
        fileStream.close();/*  w ww .j  a va  2s  .co  m*/
        return new JobMetaData(fileOffset, 0, "");
    }

    BufferedInputStream inputStream = null;
    int read = 0;
    try {
        inputStream = new BufferedInputStream(fileStream);
        read = inputStream.read(buffer);
    } finally {
        IOUtils.closeQuietly(inputStream);
    }

    if (read <= 0) {
        return new JobMetaData(fileOffset, 0, "");
    }
    Pair<Integer, Integer> utf8Range = getUtf8Range(buffer, 0, read);
    String outputString = new String(buffer, utf8Range.getFirst(), utf8Range.getSecond());

    return new JobMetaData(fileOffset + utf8Range.getFirst(), utf8Range.getSecond(), outputString);
}

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From source file:com.all.client.data.Hashcoder.java

public static String createHashCode(File file) {
    if (file == null) {
        return null;
    }/*w ww . ja v  a  2  s .co  m*/
    byte[] hashCode = null;
    try {
        FileInputStream fis = new FileInputStream(file);
        BufferedInputStream bis = new BufferedInputStream(fis);

        byte[] buffer = new byte[65536];

        bis.read(buffer);

        bis.close();
        fis.close();

        hashCode = md.digest(buffer);

    } catch (FileNotFoundException e) {
        log.error(e.getMessage(), e);
    } catch (IOException e) {
        log.error(e.getMessage(), e);
    }
    return toHex(hashCode);
}

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