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 index, int value);

Source Link

Document

Writes the given int to the specified index of this buffer.

Usage

From source file:Main.java

public static void main(String[] argv) throws Exception {
    ByteBuffer bbuf = ByteBuffer.allocate(10);
    int capacity = bbuf.capacity(); // 10
    System.out.println(capacity);
    bbuf.putInt(2, 123);

    System.out.println(Arrays.toString(bbuf.array()));
}

From source file:Main.java

public static void putUnsignedInt(ByteBuffer bb, int position, long value) {
    bb.putInt(position, (int) (value & 0xffffffffL));
}

From source file:Main.java

public static byte[] intToBytes(int x) {
    ByteBuffer buffer = ByteBuffer.allocate(4);
    buffer.putInt(0, x);
    byte[] array = buffer.array();
    reverseArray(array);/*from   w  ww  .  java  2 s.  c om*/
    return array;
}

From source file:Main.java

public static void putUnsignedInt(final ByteBuffer pByteBuffer, final int pPosition, final long pValue) {
    pByteBuffer.putInt(pPosition, (short) (pValue & 0xFFFFFFFFL));
}

From source file:org.voltdb.ClientResponseImpl.java

/**
 * Set the server timestamp marker without deserializing it first
 * @param arr/*from ww  w .  jav a  2s. c om*/
 * @param flag
 */
public static void setServerTimestamp(ByteBuffer b, int val) {
    b.putInt(1, val);
}

From source file:org.voltdb.ClientResponseImpl.java

/**
 * Set the base partition for the client response without deserializing it
 * @param arr//from   www .  j a v  a  2 s .co  m
 * @param flag
 */
public static void setBasePartition(ByteBuffer b, int basePartition) {
    b.putInt(22, basePartition); // 1 + 4 + 8 + 8 + 1 + 1 = 23 
}

From source file:Main.java

public final static ByteBuffer toNALFileFormat(final ByteBuffer buffer) {
    ByteBuffer result = ByteBuffer.allocate(buffer.remaining());
    result.put(buffer);//from   w  ww  . ja va 2 s .  com
    result.flip();
    int length = 0;
    int position = -1;
    int remaining = result.remaining() - 3;
    for (int i = 0; i < remaining; ++i) {
        if (result.get(i) == 0x00 && result.get(i + 1) == 0x00 && result.get(i + 2) == 0x00
                && result.get(i + 3) == 0x01) {
            if (0 <= position) {
                result.putInt(position, length - 3);
            }
            position = i;
            length = 0;
        } else {
            ++length;
        }
    }
    result.putInt(position, length);
    return result;
}

From source file:com.l2jfree.security.NewCipher.java

/**
 * Calculates and embeds a packet's checksum.<BR>
 * Buffer's position will not be changed.
 * // w  ww  . j a v  a 2s  .  c  o m
 * @param buf byte buffer
 * @param offset offset to a packet's body
 * @param size packet's body size
 * @param experimental undocumented experimental features
 */
public static void appendChecksum(ByteBuffer buf, final int offset, final int size, boolean experimental) {
    int checksum = 0;
    int end = offset + size - 4; // ignore reserved bytes

    int pos;
    for (pos = offset; pos < end; pos += 4) {
        int i = buf.getInt(pos);
        checksum ^= i;
    }

    buf.putInt(pos, checksum);

    if (experimental) {
        Integer real = _checks.get(buf.get(offset));
        if (real != null) // someone knows a better scheme?
            buf.putInt(pos, real); // let them have it
    }
}

From source file:org.apache.tez.mapreduce.examples.BroadcastLoadGen.java

private DAG createDAG(int numGenTasks, int totalSourceDataSize, int numFetcherTasks) {
    int bytesPerSource = totalSourceDataSize / numGenTasks;
    LOG.info("DataPerSourceTask(bytes)=" + bytesPerSource);
    ByteBuffer payload = ByteBuffer.allocate(4);
    payload.putInt(0, bytesPerSource);

    Vertex broadcastVertex = Vertex.create("DataGen", ProcessorDescriptor
            .create(InputGenProcessor.class.getName()).setUserPayload(UserPayload.create(payload)),
            numGenTasks);/* www  .  j  a va  2  s. c o  m*/
    Vertex fetchVertex = Vertex.create("FetchVertex",
            ProcessorDescriptor.create(InputFetchProcessor.class.getName()), numFetcherTasks);
    UnorderedKVEdgeConfig edgeConf = UnorderedKVEdgeConfig
            .newBuilder(NullWritable.class.getName(), IntWritable.class.getName())
            .setCompression(false, null, null).build();

    DAG dag = DAG.create("BroadcastLoadGen");
    dag.addVertex(broadcastVertex).addVertex(fetchVertex)
            .addEdge(Edge.create(broadcastVertex, fetchVertex, edgeConf.createDefaultBroadcastEdgeProperty()));
    return dag;
}

From source file:com.unister.semweb.drums.file.RepairIndexTest.java

/**
 * Converts the given <code>value</code> to a byte array representation. The final array has
 * <code>numberOfBytes</code>.
 *//*from ww w .j a  va2 s.  co m*/
private byte[] transform(int value, int numberOfBytes) {
    ByteBuffer buffer = ByteBuffer.allocate(numberOfBytes);
    buffer.putInt(numberOfBytes - 4, value);
    return buffer.array();
}