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userEventTriggered() — netty Function Reference

Architecture documentation for the userEventTriggered() function in StompWebSocketProtocolCodec.java from the netty codebase.

Function java Buffer Telemetry

Entity Profile

Dependency Diagram

graph TD
  eb8422dd_f2be_61cb_e1d0_128fc0a24db4["userEventTriggered()"]
  df16dfdc_9008_a2b6_d69b_165725228a32["StompWebSocketProtocolCodec"]
  eb8422dd_f2be_61cb_e1d0_128fc0a24db4 -->|defined in| df16dfdc_9008_a2b6_d69b_165725228a32
  style eb8422dd_f2be_61cb_e1d0_128fc0a24db4 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

example/src/main/java/io/netty/example/stomp/websocket/StompWebSocketProtocolCodec.java lines 39–53

    @Override
    public void userEventTriggered(ChannelHandlerContext ctx, Object evt) throws Exception {
        if (evt instanceof WebSocketServerProtocolHandler.HandshakeComplete) {
            StompVersion stompVersion = StompVersion.findBySubProtocol(((HandshakeComplete) evt).selectedSubprotocol());
            ctx.channel().attr(StompVersion.CHANNEL_ATTRIBUTE_KEY).set(stompVersion);
            ctx.pipeline()
               .addLast(new WebSocketFrameAggregator(65536))
               .addLast(new StompSubframeDecoder())
               .addLast(new StompSubframeAggregator(65536))
               .addLast(stompChatHandler)
               .remove(StompWebSocketClientPageHandler.INSTANCE);
        } else {
            super.userEventTriggered(ctx, evt);
        }
    }

Domain

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Defined In

Source

Frequently Asked Questions

What does userEventTriggered() do?
userEventTriggered() is a function in the netty codebase, defined in example/src/main/java/io/netty/example/stomp/websocket/StompWebSocketProtocolCodec.java.
Where is userEventTriggered() defined?
userEventTriggered() is defined in example/src/main/java/io/netty/example/stomp/websocket/StompWebSocketProtocolCodec.java at line 39.

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