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decode() — netty Function Reference

Architecture documentation for the decode() function in WebSocket00FrameDecoder.java from the netty codebase.

Function java ProtocolCodecs HTTP

Entity Profile

Dependency Diagram

graph TD
  7eff65d5_d988_e4f4_da3f_a6e657ac6b15["decode()"]
  a39accd9_2797_e36f_366c_ec1750db37ba["WebSocket00FrameDecoder"]
  7eff65d5_d988_e4f4_da3f_a6e657ac6b15 -->|defined in| a39accd9_2797_e36f_366c_ec1750db37ba
  style 7eff65d5_d988_e4f4_da3f_a6e657ac6b15 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

codec-http/src/main/java/io/netty/handler/codec/http/websocketx/WebSocket00FrameDecoder.java lines 67–89

    @Override
    protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception {
        // Discard all data received if closing handshake was received before.
        if (receivedClosingHandshake) {
            in.skipBytes(actualReadableBytes());
            return;
        }

        // Decode a frame otherwise.
        byte type = in.readByte();
        WebSocketFrame frame;
        if ((type & 0x80) == 0x80) {
            // If the MSB on type is set, decode the frame length
            frame = decodeBinaryFrame(ctx, type, in);
        } else {
            // Decode a 0xff terminated UTF-8 string
            frame = decodeTextFrame(ctx, in);
        }

        if (frame != null) {
            out.add(frame);
        }
    }

Domain

Subdomains

Defined In

Source

Frequently Asked Questions

What does decode() do?
decode() is a function in the netty codebase, defined in codec-http/src/main/java/io/netty/handler/codec/http/websocketx/WebSocket00FrameDecoder.java.
Where is decode() defined?
decode() is defined in codec-http/src/main/java/io/netty/handler/codec/http/websocketx/WebSocket00FrameDecoder.java at line 67.

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