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onHeadersRead() — netty Function Reference

Architecture documentation for the onHeadersRead() function in HelloWorldHttp2Handler.java from the netty codebase.

Function java Buffer Telemetry calls 1 called by 1

Entity Profile

Dependency Diagram

graph TD
  9ffbc081_b11c_edec_7761_cee3b226f84a["onHeadersRead()"]
  c8a162e3_eede_4376_b493_eb1ed405d206["HelloWorldHttp2Handler"]
  9ffbc081_b11c_edec_7761_cee3b226f84a -->|defined in| c8a162e3_eede_4376_b493_eb1ed405d206
  3e6fdf00_5772_8ac0_c003_2d5abd586226["channelRead()"]
  3e6fdf00_5772_8ac0_c003_2d5abd586226 -->|calls| 9ffbc081_b11c_edec_7761_cee3b226f84a
  585bb4b9_901b_e7dd_4a7b_0410fd16cb04["sendResponse()"]
  9ffbc081_b11c_edec_7761_cee3b226f84a -->|calls| 585bb4b9_901b_e7dd_4a7b_0410fd16cb04
  style 9ffbc081_b11c_edec_7761_cee3b226f84a fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

example/src/main/java/io/netty/example/http2/helloworld/multiplex/server/HelloWorldHttp2Handler.java lines 81–89

    private static void onHeadersRead(ChannelHandlerContext ctx, Http2HeadersFrame headers)
            throws Exception {
        if (headers.isEndStream()) {
            ByteBuf content = ctx.alloc().buffer();
            content.writeBytes(RESPONSE_BYTES.duplicate());
            ByteBufUtil.writeAscii(content, " - via HTTP/2");
            sendResponse(ctx, content);
        }
    }

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Defined In

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Frequently Asked Questions

What does onHeadersRead() do?
onHeadersRead() is a function in the netty codebase, defined in example/src/main/java/io/netty/example/http2/helloworld/multiplex/server/HelloWorldHttp2Handler.java.
Where is onHeadersRead() defined?
onHeadersRead() is defined in example/src/main/java/io/netty/example/http2/helloworld/multiplex/server/HelloWorldHttp2Handler.java at line 81.
What does onHeadersRead() call?
onHeadersRead() calls 1 function(s): sendResponse.
What calls onHeadersRead()?
onHeadersRead() is called by 1 function(s): channelRead.

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