Example usage for java.nio ByteBuffer position

Introduction

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

Prototype

public final int position()

Source Link

Document

Returns the position of this buffer.

Usage

From source file:com.alvermont.terraj.fracplanet.util.ByteBufferUtils.java

/**
 * The sizes of Java types are fixed and defined by the language spec so
 * this shouldn't be necessary but I'm going to do it anyway - so
 * there!/* w w w. j  ava2  s  . c  om*/
 *
 * @return The number of bytes occupied by an int value
 */
public static int sizeofInt() {
    final ByteBuffer buffer = ByteBuffer.allocate(10);

    buffer.putInt(0);

    return buffer.position();
}

From source file:net.sf.jml.util.DigestUtils.java

private static void update(MessageDigest digest, ByteBuffer buffer) {
    if (buffer.hasArray()) {
        digest.update(buffer.array(), buffer.arrayOffset() + buffer.position(), buffer.remaining());
    } else {/*from  w w  w .j  a v a 2 s.  c  o m*/
        byte[] b = new byte[buffer.remaining()];
        buffer.get(b);
        digest.update(b);
    }
}

From source file:com.alvermont.terraj.fracplanet.util.ByteBufferUtils.java

/**
 * The sizes of Java types are fixed and defined by the language spec so
 * this shouldn't be necessary but I'm going to do it anyway - so
 * there!//from   www.  j  av  a  2 s  .  c  o  m
 *
 * @return The number of bytes occupied by a float value
 */
public static int sizeofFloat() {
    final ByteBuffer buffer = ByteBuffer.allocate(10);

    buffer.putFloat(0.0f);

    return buffer.position();
}

From source file:Main.java

public static void toString(ByteBuffer bb, StringBuilder sb) {
    byte[] buf = bb.array();

    int arrayOffset = bb.arrayOffset();
    int offset = arrayOffset + bb.position();
    int origLimit = arrayOffset + bb.limit();
    int limit = (origLimit - offset > 128) ? offset + 128 : origLimit;

    for (int i = offset; i < limit; i++) {
        if (i > offset) {
            sb.append(" ");
        }//from   ww w . jav  a2  s.  c  o  m
        sb.append(paddedByteString(buf[i]));
    }
    if (origLimit != limit) {
        sb.append("...");
    }
}

From source file:Main.java

public static final int indexOfP(final ByteBuffer bb, final byte b) {
    return indexOf(bb.array(), bb.position(), bb.remaining(), b);
}

From source file:com.icloud.framework.core.nio.ByteBufferUtil.java

public static String string(ByteBuffer b) {
    return new String(b.array(), b.arrayOffset() + b.position(), b.remaining());
}

From source file:Main.java

private static byte[] byteBufferToArray(ByteBuffer bb) {
    byte[] bytes = new byte[bb.position()];
    bb.rewind();//from  w  ww  .ja v  a 2 s .c  o m
    bb.get(bytes, 0, bytes.length);
    return bytes;
}

From source file:Main.java

public static int byteBufferToByteArray(ByteBuffer byteBuffer, byte[] target, int offset) {
    int remaining = byteBuffer.remaining();
    System.arraycopy(byteBuffer.array(), byteBuffer.arrayOffset() + byteBuffer.position(), target, offset,
            remaining);//from  w  w w  .  j  a  v a 2 s  . c  o m
    return remaining;
}

From source file:com.icloud.framework.core.nio.ByteBufferUtil.java

public static int compare(byte[] o1, ByteBuffer o2) {
    return compareUnsigned(o1, o2.array(), 0, o2.arrayOffset() + o2.position(), o1.length,
            o2.limit() + o2.arrayOffset());
}

From source file:com.icloud.framework.core.nio.ByteBufferUtil.java

public static String string(ByteBuffer b, Charset charset) {
    return new String(b.array(), b.arrayOffset() + b.position(), b.remaining(), charset);
}