Example usage for java.nio ByteBuffer array

List of usage examples for java.nio ByteBuffer array

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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:com.stratagis.geoevent.adapter.nmeaplus.NmeaPlusInboundAdapter.java

private static List<byte[]> index(ByteBuffer in) {

    List<byte[]> messages = new ArrayList<byte[]>();
    for (int i = -1; in.hasRemaining();) {
        byte b = in.get();
        if (b == ((byte) '$')) // bom
        {/*  w  w  w.j  a  v  a2s .  c  o  m*/
            i = in.position();
            in.mark();
        } else if (b == ((byte) '\r') || b == ((byte) '\n')) // eom
        {
            if (i != -1) {
                byte[] message = new byte[in.position() - 1 - i];
                System.arraycopy(in.array(), i, message, 0, message.length);
                messages.add(message);
            }
            i = -1;
            in.mark();
        } else if (messages.isEmpty() && i == -1)
            in.mark();
    }
    return messages;
}

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

public static void write(ByteBuffer buffer, DataOutput out) throws IOException {
    if (buffer.hasArray()) {
        out.write(buffer.array(), buffer.arrayOffset() + buffer.position(), buffer.remaining());
    } else {/*  w w  w.  ja  va2s  .  co  m*/
        for (int i = buffer.position(); i < buffer.limit(); i++) {
            out.writeByte(buffer.get(i));
        }
    }
}

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

public static void readFrom(InputStream is, int needed, ByteBuffer buffer) throws IOException {
    ByteBuffer tmp = allocate(8192);
    while (needed > 0 && buffer.hasRemaining()) {
        int l = is.read(tmp.array(), 0, 8192);
        if (l < 0) {
            break;
        }/* w  w w.j  ava 2s.  c  o  m*/
        tmp.position(0);
        tmp.limit(l);
        buffer.put(tmp);
    }
}

From source file:io.mycat.util.ByteBufferUtil.java

/**
 * @return a new copy of the data in @param buffer
 * USUALLY YOU SHOULD USE ByteBuffer.duplicate() INSTEAD, which creates a new Buffer
 * (so you can mutate its position without affecting the original) without copying the underlying array.
 *///from   w ww  .j  a v a  2 s. co  m
public static ByteBuffer clone(ByteBuffer buffer) {
    assert buffer != null;

    if (buffer.remaining() == 0) {
        return EMPTY_BYTE_BUFFER;
    }

    ByteBuffer clone = ByteBuffer.allocate(buffer.remaining());

    if (buffer.hasArray()) {
        System.arraycopy(buffer.array(), buffer.arrayOffset() + buffer.position(), clone.array(), 0,
                buffer.remaining());
    } else {
        clone.put(buffer.duplicate());
        clone.flip();
    }

    return clone;
}

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

/**
 * buffer?//from w w w  .j  a  v  a2 s. c o m
 * 
 * @param buffer
 * @return
 */
public static byte[] toArray(ByteBuffer buffer) {
    // ?heap buffer
    if (buffer.hasArray()) {
        byte[] array = buffer.array();
        int from = buffer.arrayOffset() + buffer.position();
        return Arrays.copyOfRange(array, from, from + buffer.remaining());
    }
    //  direct buffer
    else {
        byte[] to = new byte[buffer.remaining()];
        buffer.slice().get(to);
        return to;
    }
}

From source file:Main.java

public static byte[] makeFontBitmap(String font, String code, int size, float[] arrayOfPos) {
    Log.v(TAG, String.format("makeFontBitmap called(Java): font=%s code=%s", font, code));
    Canvas c = new Canvas();
    Paint p = new Paint();
    //        Log.v(TAG, "get density");
    float density = context.getResources().getDisplayMetrics().density;
    Log.v(TAG, String.format("makeFontBitmap density: %f", density));
    p.setTextSize((float) size * density);
    p.setAntiAlias(true);/* w  ww  .  ja  v  a 2 s .c  o  m*/

    Rect textBounds = new Rect();
    p.getTextBounds(code, 0, code.length(), textBounds);
    Log.v(TAG, String.format("makeFontBitmap textBounds: %d,%d,%d,%d", textBounds.left, textBounds.top,
            textBounds.right, textBounds.bottom));

    Rect textBoundsAxA = new Rect();
    String axa = String.format("A%sA", code);
    p.getTextBounds(axa, 0, axa.length(), textBoundsAxA);
    Rect textBoundsAA = new Rect();
    String aa = "AA";
    p.getTextBounds(aa, 0, aa.length(), textBoundsAA);

    // cache.distDelta = Vec2(0, 0);
    arrayOfPos[0] = textBounds.left;
    arrayOfPos[1] = textBounds.top;

    // cache.srcWidth = Vec2(16, 16);
    arrayOfPos[2] = textBounds.width();
    arrayOfPos[3] = textBounds.height();

    // cache.step = 16;
    //      arrayOfPos[4] = textBounds.width() + 1;
    arrayOfPos[4] = textBoundsAxA.width() - textBoundsAA.width();

    if (textBounds.width() == 0 || textBounds.height() == 0) {
        Log.v(TAG, "makeFontBitmap: empty");
        return null;
    }

    Bitmap b = Bitmap.createBitmap(textBounds.width(), textBounds.height(), Bitmap.Config.ARGB_8888);
    c.setBitmap(b);

    Rect r = new Rect(0, 0, textBounds.width(), textBounds.height());
    //      p.setColor(Color.RED);
    p.setARGB(0, 0, 0, 0);
    c.drawRect(r, p);
    p.setARGB(255, 255, 255, 255);

    //        Log.v(TAG, "makeFontBitmap: drawText");
    c.drawText(code, -textBounds.left, -textBounds.top, p);
    Log.v(TAG, String.format("makeFontBitmap: w=%.2f h=%.2f", arrayOfPos[2], arrayOfPos[3]));

    ByteBuffer buf = ByteBuffer.allocate(textBounds.width() * textBounds.height() * 4);
    //      ByteBuffer buf = ByteBuffer.allocate(b.getRowBytes());
    Log.v(TAG, String.format("makeFontBitmap: b.getRowBytes() %d", b.getRowBytes()));
    buf.position(0);
    b.copyPixelsToBuffer(buf);
    Log.v(TAG, String.format("makeFontBitmap results: capacity=%d", buf.capacity()));

    //      byte bytes[] = buf.array();
    //      for (int i = 0; i < size * size * 2; i++)
    //         bytes[i] = (byte)(Math.random() * 255);
    return buf.array();
}

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

public static void arrayCopy(ByteBuffer buffer, int position, byte[] bytes, int offset, int length) {
    if (buffer.hasArray())
        System.arraycopy(buffer.array(), buffer.arrayOffset() + position, bytes, offset, length);
    else/*w w w .j  a  va2 s  .  c  o  m*/
        ((ByteBuffer) buffer.duplicate().position(position)).get(bytes, offset, length);
}

From source file:io.Text.java

/** Write a UTF8 encoded string to out
 *///from w  ww .j  a  v  a  2  s .c o  m
public static int writeString(DataOutput out, String s) throws IOException {
    ByteBuffer bytes = encode(s);
    int length = bytes.limit();
    WritableUtils.writeVInt(out, length);
    out.write(bytes.array(), 0, length);
    return length;
}

From source file:eap.util.EDcodeUtil.java

public static byte[] utf8Encode(CharSequence string) {
    try {// w  ww .j  a v  a2 s .  c  om
        ByteBuffer bytes = CHARSET.newEncoder().encode(CharBuffer.wrap(string));
        byte[] bytesCopy = new byte[bytes.limit()];
        System.arraycopy(bytes.array(), 0, bytesCopy, 0, bytes.limit());

        return bytesCopy;
    } catch (CharacterCodingException e) {
        throw new IllegalArgumentException("Encoding failed", e);
    }
}

From source file:edu.ku.brc.ui.GraphicsUtils.java

/**
 * @param name//www  .j  a  va2 s  .  c  om
 * @param str
 * @return
 */
public static ImageIcon uudecodeImage(final String name, final String str) {
    try {
        UUDecoder decoder = new UUDecoder();
        ByteBuffer bb = decoder.decodeBufferToByteBuffer(str);
        ImageIcon img = new ImageIcon(bb.array());
        return img;

    } catch (Exception ex) {
        edu.ku.brc.af.core.UsageTracker.incrHandledUsageCount();
        edu.ku.brc.exceptions.ExceptionTracker.getInstance().capture(GraphicsUtils.class, ex);
        ex.printStackTrace();
    }
    return null;
}