Examples of LengthFieldPrepender

io.netty.handler.codec.LengthFieldPrepender

An encoder that prepends the length of the message. The length value is prepended as a binary form.

For example, {@link LengthFieldPrepender}(2) will encode the following 12-bytes string:

 +----------------+ | "HELLO, WORLD" | +----------------+

into the following:

 +--------+----------------+ + 0x000C | "HELLO, WORLD" | +--------+----------------+

If you turned on the {@code lengthIncludesLengthFieldLength} flag in theconstructor, the encoded data would look like the following (12 (original data) + 2 (prepended data) = 14 (0xE)):

 +--------+----------------+ + 0x000E | "HELLO, WORLD" | +--------+----------------+

org.jboss.netty.handler.codec.frame.LengthFieldPrepender

An encoder that prepends the length of the message. The length value is prepended as a binary form. It is encoded in either big endian or little endian depending on the default {@link ByteOrder} of the current{@link ChannelBufferFactory}.

For example, {@link LengthFieldPrepender}(2) will encode the following 12-bytes string:

 +----------------+ | "HELLO, WORLD" | +----------------+

into the following:

 +--------+----------------+ + 0x000C | "HELLO, WORLD" | +--------+----------------+

If you turned on the {@code lengthIncludesLengthFieldLength} flag in theconstructor, the encoded data would look like the following (12 (original data) + 2 (prepended data) = 14 (0xE)):

 +--------+----------------+ + 0x000E | "HELLO, WORLD" | +--------+----------------+

@author The Netty Project (netty-dev@lists.jboss.org) @author Trustin Lee (tlee@redhat.com) @version $Rev: 1437 $, $Date: 2009-06-18 20:29:29 +0900 (Thu, 18 Jun 2009) $

        bootstrap = new ClientBootstrap(factory);
        bootstrap.setPipelineFactory(new ChannelPipelineFactory() {
            @Override
            public ChannelPipeline getPipeline() {
                ChannelPipeline p = Channels.pipeline();
                p.addLast("1", new LengthFieldPrepender(4));
                p.addLast("2", new ExceptionHandler());
                return p;
            }
        });

            @Override
            public ChannelPipeline getPipeline()
                    throws Exception {
                ChannelPipeline cp = Channels.pipeline();
                TimeoutHandler.addToPipeline(cp);
                cp.addLast("frameEncoder", new LengthFieldPrepender(LENGTH_FIELD_LENGTH));
                cp.addLast(
                        "frameDecoder",
                        new LengthFieldBasedFrameDecoder(
                                maxFrameSize,
                                LENGTH_FIELD_OFFSET,

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.

Examples of LengthFieldPrepender

Examples of org.jboss.netty.handler.codec.frame.LengthFieldPrepender

Examples of org.jboss.netty.handler.codec.frame.LengthFieldPrepender