Example usage for java.nio ByteBuffer array

Introduction

In this page you can find the example usage for java.nio ByteBuffer array.

Prototype

public final byte[] array() 

Source Link

Document

Returns the byte array which this buffer is based on, if there is one.

Usage

From source file:guru.benson.pinch.Pinch.java

/**
 * Extract all ZipEntries from the ZIP central directory.
 *
 * @param buf/*from   ww  w .ja  va  2 s  .c  om*/
 *     The byte buffer containing the ZIP central directory.
 *
 * @return A list with all ZipEntries.
 */
private static ArrayList<ExtendedZipEntry> parseHeaders(ByteBuffer buf) {
    ArrayList<ExtendedZipEntry> zeList = new ArrayList<ExtendedZipEntry>();

    buf.order(ByteOrder.LITTLE_ENDIAN);

    int offset = 0;

    while (offset < buf.limit() - ZipConstants.CENHDR) {
        short fileNameLen = buf.getShort(offset + ZipConstants.CENNAM);
        short extraFieldLen = buf.getShort(offset + ZipConstants.CENEXT);
        short fileCommentLen = buf.getShort(offset + ZipConstants.CENCOM);

        String fileName = new String(buf.array(), offset + ZipConstants.CENHDR, fileNameLen);

        ExtendedZipEntry zeGermans = new ExtendedZipEntry(fileName);

        zeGermans.setMethod(buf.getShort(offset + ZipConstants.CENHOW));

        CRC32 crc = new CRC32();
        crc.update(buf.getInt(offset + ZipConstants.CENCRC));
        zeGermans.setCrc(crc.getValue());

        zeGermans.setCompressedSize(buf.getInt(offset + ZipConstants.CENSIZ));
        zeGermans.setSize(buf.getInt(offset + ZipConstants.CENLEN));
        zeGermans.setInternalAttr(buf.getShort(offset + ZipConstants.CENATT));
        zeGermans.setExternalAttr(buf.getShort(offset + ZipConstants.CENATX));
        zeGermans.setOffset((long) buf.getInt(offset + ZipConstants.CENOFF));

        zeGermans.setExtraLength(extraFieldLen);

        zeList.add(zeGermans);
        offset += ZipConstants.CENHDR + fileNameLen + extraFieldLen + fileCommentLen;
    }

    return zeList;
}

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From source file:com.igormaznitsa.jcp.utils.PreprocessorUtils.java

@Nonnull
public static byte[] readFileAsByteArray(@Nonnull final File file) throws IOException {
    checkFile(file);/*from ww  w .ja  v  a  2  s.  c om*/

    int len = (int) file.length();

    final ByteBuffer buffer = ByteBuffer.allocate(len);
    final FileChannel inChannel = new FileInputStream(file).getChannel();

    try {
        while (len > 0) {
            final int read = inChannel.read(buffer);
            if (read < 0) {
                throw new IOException("Can't read whole file [" + getFilePath(file) + '\'');
            }
            len -= read;
        }
    } finally {
        IOUtils.closeQuietly(inChannel);
    }

    return buffer.array();
}

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From source file:com.github.woz_dialog.ros_woz_dialog_project.TTSHTTPClient.java

private static byte[] addWavHeader(byte[] bytes) throws IOException {

    ByteBuffer bufferWithHeader = ByteBuffer.allocate(bytes.length + 44);
    bufferWithHeader.order(ByteOrder.LITTLE_ENDIAN);
    bufferWithHeader.put("RIFF".getBytes());
    bufferWithHeader.putInt(bytes.length + 36);
    bufferWithHeader.put("WAVE".getBytes());
    bufferWithHeader.put("fmt ".getBytes());
    bufferWithHeader.putInt(16);// w  ww. ja  va2 s  .c om
    bufferWithHeader.putShort((short) 1);
    bufferWithHeader.putShort((short) 1);
    bufferWithHeader.putInt(16000);
    bufferWithHeader.putInt(32000);
    bufferWithHeader.putShort((short) 2);
    bufferWithHeader.putShort((short) 16);
    bufferWithHeader.put("data".getBytes());
    bufferWithHeader.putInt(bytes.length);
    bufferWithHeader.put(bytes);
    return bufferWithHeader.array();
}

---

From source file:com.baidu.rigel.biplatform.tesseract.util.FileUtils.java

/**
 * readFile//from ww w  .j av  a  2s .com
 * 
 * @param filePath ?
 * @return byte[]
 */
public static byte[] readFile(String filePath) {
    LOGGER.info(String.format(LogInfoConstants.INFO_PATTERN_FUNCTION_BEGIN, "readFile",
            "[filePath:" + filePath + "]"));
    if (StringUtils.isEmpty(filePath)) {
        LOGGER.info(String.format(LogInfoConstants.INFO_PATTERN_FUNCTION_EXCEPTION, "readFile",
                "[filePath:" + filePath + "]"));
        throw new IllegalArgumentException();

    }
    File file = new File(filePath);

    FileInputStream fin = null;
    FileChannel fcin = null;
    ByteBuffer rbuffer = ByteBuffer.allocate(TesseractConstant.FILE_BLOCK_SIZE);
    ByteArrayOutputStream bos = new ByteArrayOutputStream();

    if (file.exists()) {
        try {
            fin = new FileInputStream(file);
            fcin = fin.getChannel();
            while (fcin.read(rbuffer) != -1) {
                bos.write(rbuffer.array());
            }
        } catch (Exception e) {
            LOGGER.error(String.format(LogInfoConstants.INFO_PATTERN_FUNCTION_EXCEPTION, "readFile",
                    "[filePath:" + filePath + "]"), e);
        } finally {
            try {
                if (fin != null) {
                    fin.close();
                }
                if (fcin != null) {
                    fcin.close();
                }
                bos.close();
            } catch (Exception e) {
                LOGGER.error(String.format(LogInfoConstants.INFO_PATTERN_FUNCTION_EXCEPTION, "readFile",
                        "[filePath:" + filePath + "]"), e);
            }

        }
    }

    LOGGER.info(String.format(LogInfoConstants.INFO_PATTERN_FUNCTION_END, "readFile",
            "[filePath:" + filePath + "]"));
    return bos.toByteArray();
}

---

From source file:net.phoenix.thrift.hello.SpringHelloService.java

@Override
public ByteBuffer testBinary(ByteBuffer name) throws TException {
    try {//from  w ww . j  av a 2s .  c o m

        String result = new String(name.array(), name.position(), name.limit() - name.position(), "UTF-8");
        result = "Hello " + result;
        return ByteBuffer.wrap(result.getBytes("UTF-8"));
    } catch (UnsupportedEncodingException e) {
        throw new TException(e);
    }
}

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From source file:eu.pursuit.core.ScopeID.java

public byte[] toByteArray() {
    ByteBuffer buffer = ByteBuffer.allocate(getLength());
    fill(buffer);
    return buffer.array();
}

---

From source file:eu.stratosphere.arraymodel.io.StringInputFormat.java

public boolean readRecord(Value[] target, byte[] bytes, int offset, int numBytes) {
    StringValue str = this.theString;

    if (this.ascii) {
        str.setValueAscii(bytes, offset, numBytes);
    } else {//  w  w w  .j  av a 2 s.co m
        ByteBuffer byteWrapper = this.byteWrapper;
        if (bytes != byteWrapper.array()) {
            byteWrapper = ByteBuffer.wrap(bytes, 0, bytes.length);
            this.byteWrapper = byteWrapper;
        }
        byteWrapper.clear();
        byteWrapper.position(offset);
        byteWrapper.limit(offset + numBytes);

        try {
            CharBuffer result = this.decoder.decode(byteWrapper);
            str.setValue(result);
        } catch (CharacterCodingException e) {
            byte[] copy = new byte[numBytes];
            System.arraycopy(bytes, offset, copy, 0, numBytes);
            LOG.warn("Line could not be encoded: " + Arrays.toString(copy), e);
            return false;
        }
    }

    target[0] = str;
    return true;
}

---

From source file:eu.stratosphere.pact.array.io.StringInputFormat.java

public boolean readRecord(Value[] target, byte[] bytes, int offset, int numBytes) {
    PactString str = this.theString;

    if (this.ascii) {
        str.setValueAscii(bytes, offset, numBytes);
    } else {//from   w  w w .  j  a v a2s.co m
        ByteBuffer byteWrapper = this.byteWrapper;
        if (bytes != byteWrapper.array()) {
            byteWrapper = ByteBuffer.wrap(bytes, 0, bytes.length);
            this.byteWrapper = byteWrapper;
        }
        byteWrapper.clear();
        byteWrapper.position(offset);
        byteWrapper.limit(offset + numBytes);

        try {
            CharBuffer result = this.decoder.decode(byteWrapper);
            str.setValue(result);
        } catch (CharacterCodingException e) {
            byte[] copy = new byte[numBytes];
            System.arraycopy(bytes, offset, copy, 0, numBytes);
            LOG.warn("Line could not be encoded: " + Arrays.toString(copy), e);
            return false;
        }
    }

    target[0] = str;
    return true;
}

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From source file:me.whitmarbut.mfa.TOTP.java

private byte[] getHmac(int timestamp, byte[] key) throws NoSuchAlgorithmException, InvalidKeyException {
    SecretKeySpec key_spec = new SecretKeySpec(key, "HmacSHA1");
    Mac mac = Mac.getInstance("HmacSHA1");
    mac.init(key_spec);/*from w w w  .j a  va2  s.  c  om*/
    byte[] bin_timestamp = ByteBuffer.allocate(4).putInt(timestamp).array();

    ByteBuffer bbuff = ByteBuffer.allocate(8);
    bbuff.putInt(0); //Left pad 4 bytes to make a 64 bit int
    bbuff.putInt(timestamp);

    return mac.doFinal(bbuff.array());
}

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From source file:com.glaf.core.util.ByteBufferUtils.java

/**
 * from to /*from  w w  w.  j  ava2  s  . c o  m*/
 * 
 * @param fromBuffer
 *            Buffer ? flush
 * @param toBuffer
 *            Buffer ? fill
 * @return number of bytes moved
 */
public static int put(ByteBuffer fromBuffer, ByteBuffer toBuffer) {
    int put;
    int remaining = fromBuffer.remaining();
    if (remaining > 0) { // 
        if (remaining <= toBuffer.remaining()) {
            toBuffer.put(fromBuffer);
            put = remaining;
            // from 
            fromBuffer.position(fromBuffer.limit());
        }
        // heap buffer
        else if (fromBuffer.hasArray()) {
            put = toBuffer.remaining();
            // ??
            toBuffer.put(fromBuffer.array(), fromBuffer.arrayOffset() + fromBuffer.position(), put);
            fromBuffer.position(fromBuffer.position() + put);
        }
        // direct buffer
        else {
            // ??
            put = toBuffer.remaining();
            ByteBuffer slice = fromBuffer.slice();
            slice.limit(put);
            toBuffer.put(slice);
            fromBuffer.position(fromBuffer.position() + put);
        }
    } else {
        put = 0;
    }
    return put;
}

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