Examples of io.netty.handler.codec.frame.DelimiterBasedFrameDecoder

io.netty.handler.codec.frame.DelimiterBasedFrameDecoder
A decoder that splits the received {@link ChannelBuffer}s by one or more delimiters. It is particularly useful for decoding the frames which ends with a delimiter such as {@link Delimiters#nulDelimiter() NUL} or{@linkplain Delimiters#lineDelimiter() newline characters}.
Predefined delimiters

{@link Delimiters} defines frequently used delimiters for convenience' sake.
Specifying more than one delimiter

{@link DelimiterBasedFrameDecoder} allows you to specify more than onedelimiter. If more than one delimiter is found in the buffer, it chooses the delimiter which produces the shortest frame. For example, if you have the following data in the buffer:
```
 +--------------+ | ABC\nDEF\r\n | +--------------+ 
```
a {@link DelimiterBasedFrameDecoder}{@code (}{@link Delimiters#lineDelimiter() Delimiters.lineDelimiter()}{@code )}will choose {@code '\n'} as the first delimiter and produce two frames:
```
 +-----+-----+ | ABC | DEF | +-----+-----+ 
```
rather than incorrectly choosing {@code '\r\n'} as the first delimiter:
```
 +----------+ | ABC\nDEF | +----------+ 
```
@apiviz.uses io.netty.handler.codec.frame.Delimiters - - useful

    public ChannelPipeline getPipeline() throws Exception {
        // Create a default pipeline implementation.
        ChannelPipeline pipeline = pipeline();


        // Add the text line codec combination first,
        pipeline.addLast("framer", new DelimiterBasedFrameDecoder(
                8192, Delimiters.lineDelimiter()));
        pipeline.addLast("decoder", new StringDecoder());
        pipeline.addLast("encoder", new StringEncoder());


        // and then business logic.

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        //engine.setUseClientMode(true);


        pipeline.addLast("ssl", new SslHandler(engine));


        // On top of the SSL handler, add the text line codec.
        pipeline.addLast("framer", new DelimiterBasedFrameDecoder(
                8192, Delimiters.lineDelimiter()));
        pipeline.addLast("decoder", new StringDecoder());
        pipeline.addLast("encoder", new StringEncoder());


        // and then business logic.

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    public ChannelPipeline getPipeline() throws Exception {
        // Create a default pipeline implementation.
        ChannelPipeline pipeline = pipeline();


        // Add the text line codec combination first,
        pipeline.addLast("framer", new DelimiterBasedFrameDecoder(
                8192, Delimiters.lineDelimiter()));
        pipeline.addLast("decoder", new StringDecoder());
        pipeline.addLast("encoder", new StringEncoder());


        // and then business logic.

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        engine.setUseClientMode(false);


        pipeline.addLast("ssl", new SslHandler(engine));


        // On top of the SSL handler, add the text line codec.
        pipeline.addLast("framer", new DelimiterBasedFrameDecoder(
                8192, Delimiters.lineDelimiter()));
        pipeline.addLast("decoder", new StringDecoder());
        pipeline.addLast("encoder", new StringEncoder());


        // and then business logic.

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        // Configure the event pipeline factory.
        bootstrap.setPipelineFactory(new ChannelPipelineFactory() {
            @Override
            public ChannelPipeline getPipeline() throws Exception {
                DefaultChannelPipeline pipeline = new DefaultChannelPipeline();
                pipeline.addLast("framer", new DelimiterBasedFrameDecoder(8192, Delimiters.lineDelimiter()));
                pipeline.addLast("decoder", new StringDecoder());
                pipeline.addLast("encoder", new StringEncoder());
                pipeline.addLast("loggingHandler", new SimpleChannelHandler() {
                    @Override
                    public void messageReceived(final ChannelHandlerContext ctx, final MessageEvent e)

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io.netty.buffer.ChannelBuffer

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Examples of io.netty.handler.codec.frame.DelimiterBasedFrameDecoder

Predefined delimiters

Specifying more than one delimiter

Related Classes of io.netty.handler.codec.frame.DelimiterBasedFrameDecoder