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HAProxyHandler Class — netty Architecture

Architecture documentation for the HAProxyHandler class in HAProxyHandler.java from the netty codebase.

Class java

Entity Profile

Dependency Diagram

graph TD
  5e2a8408_ad29_3562_64af_3c132f548382["HAProxyHandler"]
  92c079f3_dca7_9849_6a01_404d89ea15e6["HAProxyHandler.java"]
  5e2a8408_ad29_3562_64af_3c132f548382 -->|defined in| 92c079f3_dca7_9849_6a01_404d89ea15e6
  437d3669_5338_f43c_32e6_f45c20a372cb["handlerAdded()"]
  5e2a8408_ad29_3562_64af_3c132f548382 -->|method| 437d3669_5338_f43c_32e6_f45c20a372cb
  a3d8d787_2326_9033_6bf1_18963b33525e["write()"]
  5e2a8408_ad29_3562_64af_3c132f548382 -->|method| a3d8d787_2326_9033_6bf1_18963b33525e

Relationship Graph

Source Code

example/src/main/java/io/netty/example/haproxy/HAProxyHandler.java lines 26–48

public class HAProxyHandler extends ChannelOutboundHandlerAdapter {

    @Override
    public void handlerAdded(ChannelHandlerContext ctx) throws Exception {
        ctx.pipeline().addBefore(ctx.name(), null, HAProxyMessageEncoder.INSTANCE);
        super.handlerAdded(ctx);
    }

    @Override
    public void write(final ChannelHandlerContext ctx, Object msg, ChannelPromise promise) throws Exception {
        ChannelFuture future = ctx.write(msg, promise);
        if (msg instanceof HAProxyMessage) {
            future.addListener(future1 -> {
                if (future1.isSuccess()) {
                    ctx.pipeline().remove(HAProxyMessageEncoder.INSTANCE);
                    ctx.pipeline().remove(HAProxyHandler.this);
                } else {
                    ctx.close();
                }
            });
        }
    }
}

Defined In

Source

Frequently Asked Questions

What is the HAProxyHandler class?
HAProxyHandler is a class in the netty codebase, defined in example/src/main/java/io/netty/example/haproxy/HAProxyHandler.java.
Where is HAProxyHandler defined?
HAProxyHandler is defined in example/src/main/java/io/netty/example/haproxy/HAProxyHandler.java at line 26.

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