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:jeeves.utils.BinaryFile.java

/**
 * Copies an input stream (from a file) to an output stream 
 *///from ww w .  j a  v a 2 s . co  m
public static void copy(InputStream in, OutputStream out, boolean closeInput, boolean closeOutput)
        throws IOException {

    try {
        if (in instanceof FileInputStream) {
            FileInputStream fin = (FileInputStream) in;
            WritableByteChannel outChannel;
            if (out instanceof FileOutputStream) {
                outChannel = ((FileOutputStream) out).getChannel();
            } else {
                outChannel = Channels.newChannel(out);
            }
            fin.getChannel().transferTo(0, Long.MAX_VALUE, outChannel);
        } else {
            BufferedInputStream input = new BufferedInputStream(in);

            byte buffer[] = new byte[BUF_SIZE];
            int nRead;

            while ((nRead = input.read(buffer)) > 0)
                out.write(buffer, 0, nRead);
        }
    } finally {
        if (closeInput)
            IOUtils.closeQuietly(in);
        if (closeOutput)
            IOUtils.closeQuietly(out);
    }
}

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From source file:fr.gouv.finances.dgfip.xemelios.importers.DefaultImporter.java

protected static String getFileXmlVersion(File f) throws IOException {
    String ret = null;/*w  ww.  j  a  v a2 s .  c om*/
    BufferedInputStream bis = new BufferedInputStream(new FileInputStream(f));
    byte[] bb = new byte[255];
    bis.read(bb);
    String buff = new String(bb);
    buff = buff.substring(buff.indexOf("<?"));
    buff = buff.substring(0, buff.indexOf("?>") + 2);
    String header = buff;
    int versionPos = header.indexOf("version=");
    if (versionPos >= 0) {
        String s = header.substring(versionPos + 8);
        if (s.startsWith("\"")) {
            ret = s.substring(1, s.indexOf('"', 1));
        } else if (s.startsWith("'")) {
            ret = s.substring(1, s.indexOf('\'', 1));
        } else {
            s = s.substring(0, s.length() - 2).trim();
            if (s.indexOf(' ') > 0) {
                ret = s.substring(0, s.indexOf(' '));
            } else {
                ret = s;
            }
        }
    } else {
        ret = (new InputStreamReader(new FileInputStream(f))).getEncoding();
    }
    bis.close();
    logger.debug("version=" + ret);
    return ret;
}

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From source file:gemlite.core.util.RSAUtils.java

public static byte[] readBytes(String filePath) {
    byte[] content = new byte[0];
    File file = new File(filePath);
    if (file.exists() && file.isFile())
        try {/*from w  ww  .ja  v a 2  s  .  c  o m*/
            InputStream in = new FileInputStream(file);
            BufferedInputStream bufin = new BufferedInputStream(in);
            int buffSize = 1024;
            ByteArrayOutputStream out = new ByteArrayOutputStream(buffSize);
            byte[] temp = new byte[buffSize];
            int size = 0;
            while ((size = bufin.read(temp)) != -1) {
                out.write(temp, 0, size);
            }
            bufin.close();
            content = out.toByteArray();
        } catch (Exception e) {
            LogUtil.getCoreLog().warn("readKey file :{} failure :{}", filePath, e);
        }
    return content;
}

---

From source file:fr.gouv.finances.dgfip.xemelios.importers.DefaultImporter.java

protected static String getFileEncoding(File f) throws IOException {
    String ret = "UTF-8";
    try {//from   www. ja  v a2s  . com
        BufferedInputStream bis = new BufferedInputStream(new FileInputStream(f));
        byte[] bb = new byte[255];
        int read = bis.read(bb);
        if (read < 255) {
            logger.info("while reading " + f.getName() + " for getFileEncoding(), can only read " + read
                    + " bytes.");
        }
        String buff = new String(bb);
        buff = buff.substring(buff.indexOf("<?"));
        buff = buff.substring(0, buff.indexOf("?>") + 2);
        String header = buff;
        int encodingPos = header.indexOf("encoding=");
        if (encodingPos >= 0) {
            String s = header.substring(encodingPos + 9);
            if (s.startsWith("\"")) {
                ret = s.substring(1, s.indexOf('"', 1));
            } else if (s.startsWith("'")) {
                ret = s.substring(1, s.indexOf('\'', 1));
            } else {
                s = s.substring(0, s.length() - 2).trim();
                if (s.indexOf(' ') > 0) {
                    ret = s.substring(0, s.indexOf(' '));
                } else {
                    ret = s;
                }
            }
        } else {
            ret = "UTF-8";
        }
        bis.close();
    } catch (Exception ex) {
        logger.error("getFileEncoding(File)" + ex);
    }
    logger.debug("encoding=" + ret);
    return ret;
}

---

From source file:com.eviware.soapui.support.Tools.java

public static int copyFile(File source, File target, boolean overwrite) throws IOException {
    int bytes = 0;

    if (target.exists()) {
        if (overwrite) {
            target.delete();// w  ww  . j  a  v  a2 s .co  m
        } else {
            return -1;
        }
    } else {
        String path = target.getAbsolutePath();
        int ix = path.lastIndexOf(File.separatorChar);
        if (ix != -1) {
            path = path.substring(0, ix);
            File pathFile = new File(path);
            if (!pathFile.exists()) {
                pathFile.mkdirs();
            }
        }
    }

    BufferedInputStream in = new BufferedInputStream(new FileInputStream(source));
    BufferedOutputStream out = new BufferedOutputStream(new FileOutputStream(target));

    int read = in.read(copyBuffer);
    while (read != -1) {
        if (read > 0) {
            out.write(copyBuffer, 0, read);
            bytes += read;
        }
        read = in.read(copyBuffer);
    }

    in.close();
    out.close();

    return bytes;
}

---

From source file:com.iStudy.Study.Renren.Util.java

/**
 * ???/*from ww  w.ja  va  2s  .  com*/
 * 
 * @param inputStream
 * @return
 * @throws IOException
 */
public static byte[] streamToByteArray(InputStream inputStream) {
    byte[] content = null;

    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    BufferedInputStream bis = new BufferedInputStream(inputStream);

    try {
        byte[] buffer = new byte[1024];
        int length = 0;
        while ((length = bis.read(buffer)) != -1) {
            baos.write(buffer, 0, length);
        }

        content = baos.toByteArray();
        if (content.length == 0) {
            content = null;
        }

        baos.close();
        bis.close();
    } catch (IOException e) {
        logger(e.getMessage());
    } finally {
        if (baos != null) {
            try {
                baos.close();
            } catch (IOException e) {
                logger(e.getMessage());
            }
        }
        if (bis != null) {
            try {
                bis.close();
            } catch (IOException e) {
                logger(e.getMessage());
            }
        }
    }

    return content;
}

---

From source file:com.edgenius.core.util.ZipFileUtil.java

private static void addEntry(ZipOutputStream zop, File entry, String entryName) throws IOException {
    if (StringUtils.isBlank(entryName))
        return;//from   w  w  w  . j  a v a  2s .c o  m

    BufferedInputStream source = null;
    if (entry != null) {
        source = new BufferedInputStream(new FileInputStream(entry));
    } else {
        //to make this as directory
        if (!entryName.endsWith("/"))
            entryName += "/";
    }
    ZipEntry zipEntry = new ZipEntry(entryName);
    zop.putNextEntry(zipEntry);

    if (entry != null) {
        //transfer bytes from file to ZIP file
        byte[] data = new byte[BUFFER_SIZE];
        int length;
        while ((length = source.read(data)) > 0) {
            zop.write(data, 0, length);
        }
        IOUtils.closeQuietly(source);
    }
    zop.closeEntry();

}

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From source file:net.servicestack.client.Utils.java

public static byte[] readBytesToEnd(InputStream stream) throws IOException {

    ByteArrayBuffer bytes = new ByteArrayBuffer(1024);

    final BufferedInputStream bufferedStream = new BufferedInputStream(stream, 8192);
    try {/*from www .  jav a 2  s  .c  o  m*/
        final byte[] buffer = new byte[1024];
        int bytesRead = 0;
        while ((bytesRead = bufferedStream.read(buffer)) > 0) {
            bytes.append(buffer, 0, bytesRead);
        }
        return bytes.toByteArray();
    } finally {
        bufferedStream.close();
    }
}

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From source file:com.stimulus.archiva.language.NGramProfile.java

/**
 * Create a new Language profile from (preferably quite large) text file
 * /*from   w w  w .  j  a v  a  2s . co m*/
 * @param name is thename of profile
 * @param is is the stream to read
 * @param encoding is the encoding of stream
 */
public static NGramProfile create(String name, InputStream is, String encoding) {

    NGramProfile newProfile = new NGramProfile(name, ABSOLUTE_MIN_NGRAM_LENGTH, ABSOLUTE_MAX_NGRAM_LENGTH);
    BufferedInputStream bis = new BufferedInputStream(is);

    byte buffer[] = new byte[4096];
    StringBuffer text = new StringBuffer();
    int len;

    try {
        while ((len = bis.read(buffer)) != -1) {
            text.append(new String(buffer, 0, len, encoding));
        }
    } catch (IOException e) {
        logger.error("failed to create NGRAM profile", e);
    }

    newProfile.analyze(text);
    return newProfile;
}

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From source file:com.zenika.dorm.maven.test.grinder.GrinderGenerateJson.java

/**
 * @param file         to generate checksum
 * @param fileChecksum to put the generated checksum
 *///  w  ww  .  java 2s .c  o  m
private static void generateChecksum(File file, File fileChecksum, String checksumType) {
    FileOutputStream outputStream = null;
    BufferedOutputStream bufferedOutputStream = null;

    FileInputStream inputStream = null;
    BufferedInputStream bufferedInputStream = null;
    try {
        MessageDigest digest = MessageDigest.getInstance(checksumType);

        outputStream = new FileOutputStream(fileChecksum);
        bufferedOutputStream = new BufferedOutputStream(outputStream);

        inputStream = new FileInputStream(file);
        bufferedInputStream = new BufferedInputStream(inputStream);
        byte[] dataBytes = new byte[1024];
        int nread = 0;

        while ((nread = bufferedInputStream.read(dataBytes)) != -1) {
            digest.update(dataBytes, 0, nread);
        }

        byte[] byteDigested = digest.digest();

        StringBuffer sb = new StringBuffer("");
        for (int i = 0; i < byteDigested.length; i++) {
            sb.append(Integer.toString((byteDigested[i] & 0xff) + 0x100, 16).substring(1));
        }

        bufferedOutputStream.write(sb.toString().getBytes());
        bufferedOutputStream.flush();
    } catch (NoSuchAlgorithmException e) {
        throw new RuntimeException("Unable to digest this file: " + file, e);
    } catch (FileNotFoundException e) {
        throw new RuntimeException("Unable to digest this file: " + file, e);
    } catch (IOException e) {
        throw new RuntimeException("Unable to digest this file: " + file, e);
    } finally {
        if (inputStream != null) {
            try {
                inputStream.close();
            } catch (IOException e) {
                throw new RuntimeException("Unable to digest this file: " + file, e);
            }
        }
        if (outputStream != null) {
            try {
                outputStream.close();
            } catch (IOException e) {
                throw new RuntimeException("Unable to digest this file: " + file, e);
            }
        }
        if (bufferedInputStream != null) {
            try {
                bufferedInputStream.close();
            } catch (IOException e) {
                throw new RuntimeException("Unable to digest this file: " + file, e);
            }
        }
        if (bufferedOutputStream != null) {
            try {
                bufferedOutputStream.close();
            } catch (IOException e) {
                throw new RuntimeException("Unable to digest this file: " + file, e);
            }
        }
    }
}

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