netty Architecture Docs
Home / Function/ isWebsocketUpgrade() — netty Function Reference

isWebsocketUpgrade() — netty Function Reference

Architecture documentation for the isWebsocketUpgrade() function in WebSocketExtensionUtil.java from the netty codebase.

Function java ProtocolCodecs HTTP

Entity Profile

Dependency Diagram

graph TD
  83055958_d7d9_a79c_9dcf_9c22fcce8803["isWebsocketUpgrade()"]
  36acf548_12c0_7c6a_f443_4b411d0a25e8["WebSocketExtensionUtil"]
  83055958_d7d9_a79c_9dcf_9c22fcce8803 -->|defined in| 36acf548_12c0_7c6a_f443_4b411d0a25e8
  style 83055958_d7d9_a79c_9dcf_9c22fcce8803 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

codec-http/src/main/java/io/netty/handler/codec/http/websocketx/extensions/WebSocketExtensionUtil.java lines 39–45

    static boolean isWebsocketUpgrade(HttpHeaders headers) {
        //this contains check does not allocate an iterator, and most requests are not upgrades
        //so we do the contains check first before checking for specific values
        return headers.contains(HttpHeaderNames.UPGRADE) &&
                headers.containsValue(HttpHeaderNames.CONNECTION, HttpHeaderValues.UPGRADE, true) &&
                headers.contains(HttpHeaderNames.UPGRADE, HttpHeaderValues.WEBSOCKET, true);
    }

Domain

Subdomains

Defined In

Source

Frequently Asked Questions

What does isWebsocketUpgrade() do?
isWebsocketUpgrade() is a function in the netty codebase, defined in codec-http/src/main/java/io/netty/handler/codec/http/websocketx/extensions/WebSocketExtensionUtil.java.
Where is isWebsocketUpgrade() defined?
isWebsocketUpgrade() is defined in codec-http/src/main/java/io/netty/handler/codec/http/websocketx/extensions/WebSocketExtensionUtil.java at line 39.

Analyze Your Own Codebase

Get architecture documentation, dependency graphs, and domain analysis for your codebase in minutes.

Try Supermodel Free