Java ByteBuffer.put方法代码示例

import org.apache.mina.common.ByteBuffer; //导入方法依赖的package包/类
public void encode(IoSession session, Object message,
		ProtocolEncoderOutput out) throws Exception {
	if(!(message instanceof byte[])){
		throw new Exception("must send byte[]");
	}
	byte[] payload=(byte[]) message;
	ByteBuffer buf = ByteBuffer.allocate(payload.length, false);
       buf.put(payload);
       buf.flip();
       out.write(buf);
       if (isDebugEnabled)
       	LOGGER.debug(TairUtil.toHex(payload));
}
 

import org.apache.mina.common.ByteBuffer; //导入方法依赖的package包/类
public void reduceBufferToFit()
{
    if (payload != null && (payload.remaining() < payload.capacity() / 2))
    {
        int size = payload.limit();
        ByteBuffer newPayload = ByteBuffer.allocate(size);

        newPayload.put(payload);
        newPayload.flip();

        //reduce reference count on payload
        payload.release();

        payload = newPayload;
    }
}
 

import org.apache.mina.common.ByteBuffer; //导入方法依赖的package包/类
public static void writeFrames(ByteBuffer buffer, final int channel, AMQBody body1, AMQBody body2, AMQBody body3)
{
    buffer.put(body1.getFrameType());
    EncodingUtils.writeUnsignedShort(buffer, channel);
    EncodingUtils.writeUnsignedInteger(buffer, body1.getSize());
    body1.writePayload(buffer);
    buffer.put(FRAME_END_BYTE);
    buffer.put(body2.getFrameType());
    EncodingUtils.writeUnsignedShort(buffer, channel);
    EncodingUtils.writeUnsignedInteger(buffer, body2.getSize());
    body2.writePayload(buffer);
    buffer.put(FRAME_END_BYTE);
    buffer.put(body3.getFrameType());
    EncodingUtils.writeUnsignedShort(buffer, channel);
    EncodingUtils.writeUnsignedInteger(buffer, body3.getSize());
    body3.writePayload(buffer);
    buffer.put(FRAME_END_BYTE);

}
 

import org.apache.mina.common.ByteBuffer; //导入方法依赖的package包/类
public static void writeShortStringBytes(ByteBuffer buffer, String s)
{
    if (s != null)
    {
        byte[] encodedString = new byte[s.length()];
        char[] cha = s.toCharArray();
        for (int i = 0; i < cha.length; i++)
        {
            encodedString[i] = (byte) cha[i];
        }

        // TODO: check length fits in an unsigned byte
        writeUnsignedByte(buffer,  (short)encodedString.length);
        buffer.put(encodedString);


    }
    else
    {
        // really writing out unsigned byte
        buffer.put((byte) 0);
    }
}
 

import org.apache.mina.common.ByteBuffer; //导入方法依赖的package包/类
public static void writeUnsignedInteger(ByteBuffer buffer, long l)
{
    // TODO: Is this comparison safe? Do I need to cast RHS to long?
    if (l < Integer.MAX_VALUE)
    {
        buffer.putInt((int) l);
    }
    else
    {
        int iv = (int) l;

        // FIXME: This *may* go faster if we build this into a local 4-byte array and then
        // put the array in a single call.
        buffer.put((byte) (0xFF & (iv >> 24)));
        buffer.put((byte) (0xFF & (iv >> 16)));
        buffer.put((byte) (0xFF & (iv >> 8)));
        buffer.put((byte) (0xFF & iv));
    }
}
 

import org.apache.mina.common.ByteBuffer; //导入方法依赖的package包/类
/**
 * Turns a <code>org.apache.mina.common.ByteBuffer</code> into a hexadecimal
 * string.
 *
 * @param buf The <code>org.apache.mina.common.ByteBuffer</code> to convert.
 * @return The hexadecimal representation of <code>buf</code>
 */
public static String toString(final ByteBuffer buf) {
    buf.flip();
    final byte arr[] = new byte[buf.remaining()];
    buf.get(arr);
    String ret = toString(arr);
    buf.flip();
    buf.put(arr);
    return ret;
}
 

import org.apache.mina.common.ByteBuffer; //导入方法依赖的package包/类
/**
 * Turns a {@link org.apache.mina.common.ByteBuffer ByteBuffer}
 * into a hexadecimal string.
 *
 * @param  buf The <code>ByteBuffer</code> to convert.
 * @return The hexadecimal representation of <code>buf</code>.
 */
public static String toString(final ByteBuffer buf) {
    buf.flip();
    final byte[] arr = new byte[buf.remaining()];
    buf.get(arr);
    final String ret = toString(arr);
    buf.flip();
    buf.put(arr);
    return ret;
}
 

import org.apache.mina.common.ByteBuffer; //导入方法依赖的package包/类
private ByteBuffer toByteBuffer(Object message) throws CharacterCodingException, NoTypeConversionAvailableException {
    // try to convert it to a byte array
    byte[] value = context.getTypeConverter().tryConvertTo(byte[].class, message);
    if (value != null) {
        ByteBuffer answer = ByteBuffer.allocate(value.length).setAutoExpand(false);
        answer.put(value);
        return answer;
    }
    // fallback to use a byte buffer converter
    return context.getTypeConverter().mandatoryConvertTo(ByteBuffer.class, message);
}
 

import org.apache.mina.common.ByteBuffer; //导入方法依赖的package包/类
public void writePayload(ByteBuffer buffer)
{
    if (payload != null)
    {
        if(payload.isDirect() || payload.isReadOnly())
        {            
            ByteBuffer copy = payload.duplicate();
            buffer.put(copy.rewind());
        }
        else
        {
            buffer.put(payload.array(),payload.arrayOffset(),payload.limit());
        }
    }
}
 

import org.apache.mina.common.ByteBuffer; //导入方法依赖的package包/类
public synchronized void send(java.nio.ByteBuffer msg)
{
    _log.debug("sending data:");
    ByteBuffer mina = ByteBuffer.allocate(msg.limit());
    mina.put(msg);
    mina.flip();
    _lastWrite = _session.write(mina);
    _log.debug("sent data:");
}
 

import org.apache.mina.common.ByteBuffer; //导入方法依赖的package包/类
public static void writeBytes(ByteBuffer buffer, byte[] data)
{
    if (data != null)
    {
        // TODO: check length fits in an unsigned byte
        writeUnsignedInteger(buffer,  (long)data.length);
        buffer.put(data);
    }
    else
    {                                                    
        // really writing out unsigned byte
        //buffer.put((byte) 0);
        writeUnsignedInteger(buffer, 0L);
    }
}
 

import org.apache.mina.common.ByteBuffer; //导入方法依赖的package包/类
public void deliver(Packet packet) throws UnauthorizedException {
    if (isClosed()) {
        backupDeliverer.deliver(packet);
    }
    else {
        ByteBuffer buffer = ByteBuffer.allocate(4096);
        buffer.setAutoExpand(true);

        boolean errorDelivering = false;
        try {
        	// OF-464: if the connection has been dropped, fail over to backupDeliverer (offline)
        	if (!ioSession.isConnected()) {
        		throw new IOException("Connection reset/closed by peer");
        	}
            XMLWriter xmlSerializer =
                    new XMLWriter(new ByteBufferWriter(buffer, encoder.get()), new OutputFormat());
            xmlSerializer.write(packet.getElement());
            xmlSerializer.flush();
            if (flashClient) {
                buffer.put((byte) '\0');
            }
            buffer.flip();
            ioSession.write(buffer);
        }
        catch (Exception e) {
            Log.debug("Error delivering packet:\n" + packet, e);
            errorDelivering = true;
        }
        if (errorDelivering) {
            close();
            // Retry sending the packet again. Most probably if the packet is a
            // Message it will be stored offline
            backupDeliverer.deliver(packet);
        }
        else {
            session.incrementServerPacketCount();
        }
    }
}
 

import org.apache.mina.common.ByteBuffer; //导入方法依赖的package包/类
public static void writeFrame(ByteBuffer buffer, final int channel, AMQBody body)
{
    buffer.put(body.getFrameType());
    EncodingUtils.writeUnsignedShort(buffer, channel);
    EncodingUtils.writeUnsignedInteger(buffer, body.getSize());
    body.writePayload(buffer);
    buffer.put(FRAME_END_BYTE);

}
 

import org.apache.mina.common.ByteBuffer; //导入方法依赖的package包/类
public static void writeBooleans(ByteBuffer buffer, boolean value0, boolean value1, boolean value2, boolean value3,
    boolean value4, boolean value5)
{
    byte packedValue = value0 ? (byte) 1 : (byte) 0;

    if (value1)
    {
        packedValue = (byte) (packedValue | (byte) (1 << 1));
    }

    if (value2)
    {
        packedValue = (byte) (packedValue | (byte) (1 << 2));
    }

    if (value3)
    {
        packedValue = (byte) (packedValue | (byte) (1 << 3));
    }

    if (value4)
    {
        packedValue = (byte) (packedValue | (byte) (1 << 4));
    }

    if (value5)
    {
        packedValue = (byte) (packedValue | (byte) (1 << 5));
    }

    buffer.put(packedValue);
}
 

import org.apache.mina.common.ByteBuffer; //导入方法依赖的package包/类
public static void writeUnsignedShort(ByteBuffer buffer, int s)
{
    // TODO: Is this comparison safe? Do I need to cast RHS to long?
    if (s < Short.MAX_VALUE)
    {
        buffer.putShort((short) s);
    }
    else
    {
        short sv = (short) s;
        buffer.put((byte) (0xFF & (sv >> 8)));
        buffer.put((byte) (0xFF & sv));
    }
}