Examples of net.sf.cindy.Buffer

net.sf.cindy.Buffer
A replacement for java.nio.ByteBuffer.
Advantage:
- cachable
- some utility method, such as indexOf/putString/getString/getUnsignedXXX
- can add custom implementation
Buffers are not safe for use by multiple concurrent threads. If a buffer is to be used by more than one thread then access to the buffer should be controlled by appropriate synchronization. @author Roger Chen @version $id$

 * @version $id$
 */
public class ByteArrayDecoder implements PacketDecoder {


    public Object decode(Session session, Packet packet) throws Exception {
        Buffer buffer = packet.getContent();
        byte[] content = new byte[buffer.remaining()];
        buffer.get(content);
        return content;
    }

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 * @version $id$
 */
public class BufferDecoder implements PacketDecoder {


    public Object decode(Session session, Packet packet) throws Exception {
        Buffer buffer = packet.getContent();
        return BufferFactory.allocate(buffer.remaining()).put(0, buffer);
    }

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        chain.remove(decoder);
        return this;
    }


    public Object decode(Session session, Packet packet) throws Exception {
        Buffer content = packet.getContent();
        int position = content.position();
        int limit = content.limit();


        for (Iterator iter = chain.iterator(); iter.hasNext();) {
            PacketDecoder decoder = (PacketDecoder) iter.next();
            Object obj = decoder.decode(session, packet);
            if (obj != null)
                return obj;


            // not use slice to create new buffer, reduce memory cost
            content.limit(limit);
            content.position(position);
        }
        return null;
    }

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    private void resize(int size) {
        if (buffer.remaining() < size) {
            int capacity = Math.max(buffer.position() + size, (buffer
                    .capacity() + 1) * 2);
            Buffer newBuffer = BufferFactory.allocate(capacity).put(
                    buffer.flip());
            buffer.release();
            buffer = newBuffer;
        }
    }

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            buffer = newBuffer;
        }
    }


    public Buffer toBuffer() {
        Buffer result = BufferFactory.allocate(buffer.position());
        buffer.get(0, result);
        return result.flip();
    }

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        return null;
    }


    protected byte _get(int index) {
        Entry entry = getEntry(index);
        Buffer buffer = entry.buffer;
        return buffer.get(buffer.position() + index - entry.position);
    }

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        return buffer.get(buffer.position() + index - entry.position);
    }


    protected void _put(int index, byte b) {
        Entry entry = getEntry(index);
        Buffer buffer = entry.buffer;
        buffer.put(buffer.position() + index - entry.position, b);
    }

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    protected Buffer batch(boolean get, int index, byte[] array, int offset,
            int length) {
        Entry entry = getEntry(index);
        int off = index - entry.position;
        do {
            Buffer buffer = entry.buffer;
            int len = Math.min(buffer.remaining() - off, length);


            if (get)
                buffer.get(buffer.position() + off, array, offset, len);
            else
                buffer.put(buffer.position() + off, array, offset, len);


            offset += len;
            length -= len;
            if (length <= 0)
                break;

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    protected Buffer batch(boolean get, int index, ByteBuffer buffer, int length) {
        Entry entry = getEntry(index);
        int off = index - entry.position;
        do {
            Buffer content = entry.buffer;
            int len = Math.min(content.remaining() - off, length);


            if (get)
                content.get(content.position() + off, buffer, len);
            else {
                content.put(content.position() + off, buffer, len);
            }


            length -= len;
            if (length <= 0)
                break;

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    protected Buffer batch(boolean get, int index, Buffer buffer, int length) {
        Entry entry = getEntry(index);
        int off = index - entry.position;
        do {
            Buffer content = entry.buffer;
            int len = Math.min(content.remaining() - off, length);


            if (get)
                content.get(content.position() + off, buffer, len);
            else
                content.put(content.position() + off, buffer, len);


            length -= len;
            if (length <= 0)
                break;
            off = 0;

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Related Classes of net.sf.cindy.Buffer

net.sf.cindy.buffer.AbstractBuffer

net.sf.cindy.buffer.BufferBuilder

net.sf.cindy.buffer.BufferBuilderTest

net.sf.cindy.buffer.BufferTest

net.sf.cindy.buffer.ByteArrayBufferTest

net.sf.cindy.buffer.ByteBufferBufferTest

net.sf.cindy.buffer.LinkedBuffer

net.sf.cindy.decoder.BufferDecoder

net.sf.cindy.decoder.ByteArrayDecoder

net.sf.cindy.decoder.ByteBufferDecoder

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