Example usage for java.nio ByteBuffer putInt

Introduction

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

Prototype

public abstract ByteBuffer putInt(int value);

Source Link

Document

Writes the given int to the current position and increases the position by 4.

Usage

From source file:org.texai.util.ByteUtils.java

/** Returns a 4-byte array built from an int.
 *
 * @param number the int number to convert
 * @return a byte array//w  ww.  j a v  a 2  s .c  om
 */
public static byte[] toBytes(final int number) {
    final ByteBuffer byteBuffer = ByteBuffer.allocate(4);
    byteBuffer.putInt(number);
    return byteBuffer.array();
}

From source file:io.github.dsheirer.record.wave.WaveWriter.java

/**
 * Creates an audio format chunk/*from   w  w  w  .  j  a  va 2  s. co m*/
 */
public static ByteBuffer getFormatChunk(AudioFormat format) {
    ByteBuffer header = ByteBuffer.allocate(24).order(ByteOrder.LITTLE_ENDIAN);

    //Format descriptor
    header.put(FORMAT_CHUNK_ID.getBytes());
    header.putInt(FORMAT_CHUNK_LENGTH);
    header.putShort(FORMAT_UNCOMPRESSED_PCM);
    header.putShort((short) format.getChannels());
    header.putInt((int) format.getSampleRate());

    //Byte Rate = sample rate * channels * bits per sample / 8
    int frameByteRate = format.getChannels() * format.getSampleSizeInBits() / 8;
    int byteRate = (int) (format.getSampleRate() * frameByteRate);
    header.putInt(byteRate);

    //Block Align
    header.putShort((short) frameByteRate);

    //Bits per Sample
    header.putShort((short) format.getSampleSizeInBits());

    //Reset the buffer pointer to 0
    header.position(0);

    return header;
}

From source file:org.hashtrees.test.HashTreesImplTest.java

private static ByteBuffer generateRandomKeyWithPrefix(int prefixValue) {
    byte[] randomBytes = randomBytes();
    byte[] key = new byte[ByteUtils.SIZEOF_INT + randomBytes.length];
    ByteBuffer bb = ByteBuffer.wrap(key);
    bb.putInt(prefixValue);
    bb.put(randomBytes);//from w  ww  .  j  a v  a 2 s .  c  o m
    return bb;
}

From source file:com.aerohive.nms.engine.admin.task.licensemgr.license.processor2.PacketUtil.java

public static byte[] join(Header header, byte[] content) {
    ByteBuffer buf = ByteBuffer.allocate(8192);

    byte[] outBytes;
    if (content.length == 0) {
        outBytes = new byte[0];
    } else {//w  ww  .j a  v a  2  s .  c o m
        if (header.isSecretFlag()) {
            // encrypt data
            outBytes = encryptData(content);
        } else {
            outBytes = new byte[content.length];
            System.arraycopy(content, 0, outBytes, 0, content.length);
        }
    }
    buf.put(header.getType());
    buf.putInt(outBytes.length);
    buf.put(header.getProtocolVersion());
    buf.put(header.isSecretFlag() ? CommConst.Secret_Flag_Yes : CommConst.Secret_Flag_No);
    buf.put(outBytes);

    buf.flip();

    byte[] dst = new byte[buf.limit()];
    buf.get(dst);
    return dst;
}

From source file:org.wso2.carbon.analytics.data.commons.utils.AnalyticsCommonUtils.java

public static byte[] serializeObject(Object obj) {
    Kryo kryo = kryoTL.get();/*  ww w.  ja  v a  2s  .co m*/
    ByteArrayOutputStream byteOut = new ByteArrayOutputStream();
    try (Output out = new Output(byteOut)) {
        kryo.writeClassAndObject(out, obj);
        out.flush();
        byte[] data = byteOut.toByteArray();
        ByteBuffer result = ByteBuffer.allocate(data.length + Integer.SIZE / 8);
        result.putInt(data.length);
        result.put(data);
        return result.array();
    }
}

From source file:com.healthmarketscience.jackcess.impl.IndexImpl.java

/**
 * Writes the logical index definitions into a table definition buffer.
 * @param buffer Buffer to write to/*from w  w w.ja v a2 s . co m*/
 * @param indexes List of IndexBuilders to write definitions for
 */
protected static void writeDefinitions(TableCreator creator, ByteBuffer buffer) throws IOException {
    // write logical index information
    for (IndexBuilder idx : creator.getIndexes()) {
        TableCreator.IndexState idxState = creator.getIndexState(idx);
        buffer.putInt(TableImpl.MAGIC_TABLE_NUMBER); // seemingly constant magic value which matches the table def
        buffer.putInt(idxState.getIndexNumber()); // index num
        buffer.putInt(idxState.getIndexDataNumber()); // index data num
        buffer.put((byte) 0); // related table type
        buffer.putInt(INVALID_INDEX_NUMBER); // related index num
        buffer.putInt(0); // related table definition page number
        buffer.put((byte) 0); // cascade updates flag
        buffer.put((byte) 0); // cascade deletes flag
        buffer.put(idx.getType()); // index type flags
        buffer.putInt(0); // unknown
    }

    // write index names
    for (IndexBuilder idx : creator.getIndexes()) {
        TableImpl.writeName(buffer, idx.getName(), creator.getCharset());
    }
}

From source file:org.hashtrees.test.HashTreesImplTest.java

private static byte[] generateBytesFrom(int... values) {
    byte[] result = new byte[values.length * ByteUtils.SIZEOF_INT];
    ByteBuffer bb = ByteBuffer.wrap(result);
    for (int value : values)
        bb.putInt(value);
    return result;
}

From source file:org.apache.htrace.impl.PackedBuffer.java

/**
 * Write the fixed-length request frame which starts packed RPC messages.
 *///from w  w w.  j  a  va 2s  .c  om
static void writeReqFrame(ByteBuffer bb, int methodId, long seq, int length) throws IOException {
    int oldPos = bb.position();
    boolean success = false;
    try {
        bb.order(ByteOrder.LITTLE_ENDIAN);
        bb.putInt(HRPC_MAGIC);
        bb.putInt(methodId);
        bb.putLong(seq);
        bb.putInt(length);
        success = true;
    } finally {
        if (!success) {
            bb.position(oldPos);
        }
    }
}

From source file:com.healthmarketscience.jackcess.Index.java

/**
 * Writes the logical index definitions into a table definition buffer.
 * @param buffer Buffer to write to//from ww  w .j a  va 2s.c o m
 * @param indexes List of IndexBuilders to write definitions for
 */
protected static void writeDefinitions(TableCreator creator, ByteBuffer buffer) throws IOException {
    // write logical index information
    for (IndexBuilder idx : creator.getIndexes()) {
        TableCreator.IndexState idxState = creator.getIndexState(idx);
        buffer.putInt(Table.MAGIC_TABLE_NUMBER); // seemingly constant magic value which matches the table def
        buffer.putInt(idxState.getIndexNumber()); // index num
        buffer.putInt(idxState.getIndexDataNumber()); // index data num
        buffer.put((byte) 0); // related table type
        buffer.putInt(INVALID_INDEX_NUMBER); // related index num
        buffer.putInt(0); // related table definition page number
        buffer.put((byte) 0); // cascade updates flag
        buffer.put((byte) 0); // cascade deletes flag
        buffer.put(idx.getType()); // index type flags
        buffer.putInt(0); // unknown
    }

    // write index names
    for (IndexBuilder idx : creator.getIndexes()) {
        Table.writeName(buffer, idx.getName(), creator.getCharset());
    }
}

From source file:org.midonet.netlink.rtnetlink.Link.java

static public ByteBuffer describeGetRequest(ByteBuffer buf, int index) {
    buf.put((byte) 0);
    buf.put((byte) 0);
    buf.putShort((short) 0);
    buf.putInt(index);
    buf.putInt(0);//  www.j  av  a2  s  .  c o m
    buf.putInt(0xffffffff);

    return buf;
}