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channelRead() — netty Function Reference

Architecture documentation for the channelRead() function in DefaultHttp2PushPromiseFrameTest.java from the netty codebase.

Function java Buffer Allocators calls 1 called by 1

Entity Profile

Dependency Diagram

graph TD
  d36dda17_5603_2e74_6899_d09d92687d79["channelRead()"]
  4f26c93c_0586_84ae_b8d6_c3389b56672c["ClientHandler"]
  d36dda17_5603_2e74_6899_d09d92687d79 -->|defined in| 4f26c93c_0586_84ae_b8d6_c3389b56672c
  facc03cb_72c6_5e6c_d53a_96dfd538894c["channelRead()"]
  facc03cb_72c6_5e6c_d53a_96dfd538894c -->|calls| d36dda17_5603_2e74_6899_d09d92687d79
  facc03cb_72c6_5e6c_d53a_96dfd538894c["channelRead()"]
  d36dda17_5603_2e74_6899_d09d92687d79 -->|calls| facc03cb_72c6_5e6c_d53a_96dfd538894c
  style d36dda17_5603_2e74_6899_d09d92687d79 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

codec-http2/src/test/java/io/netty/handler/codec/http2/DefaultHttp2PushPromiseFrameTest.java lines 189–231

        @Override
        public void channelRead(ChannelHandlerContext ctx, Object msg) {

            if (msg instanceof Http2PushPromiseFrame) {
                Http2PushPromiseFrame pushPromiseFrame = (Http2PushPromiseFrame) msg;

                assertEquals("/meow", pushPromiseFrame.http2Headers().path().toString());
                assertEquals("GET", pushPromiseFrame.http2Headers().method().toString());
                assertEquals("https", pushPromiseFrame.http2Headers().scheme().toString());
                assertEquals("localhost:5555", pushPromiseFrame.http2Headers().authority().toString());

                Http2PriorityFrame priorityFrame = new DefaultHttp2PriorityFrame(pushPromiseFrame.stream().id(),
                        Http2CodecUtil.DEFAULT_PRIORITY_WEIGHT, true);
                priorityFrame.stream(pushPromiseFrame.pushStream());
                ctx.writeAndFlush(priorityFrame);
            } else if (msg instanceof Http2HeadersFrame) {
                Http2HeadersFrame headersFrame = (Http2HeadersFrame) msg;

                if (headersFrame.stream().id() == 3) {
                    assertEquals("200", headersFrame.headers().status().toString());
                    assertEquals("false", headersFrame.headers().get("push").toString());
                } else if (headersFrame.stream().id() == 2) {
                    assertEquals("200", headersFrame.headers().status().toString());
                    assertEquals("true", headersFrame.headers().get("push").toString());
                } else {
                    ctx.writeAndFlush(new DefaultHttp2GoAwayFrame(Http2Error.REFUSED_STREAM));
                }
            } else if (msg instanceof Http2DataFrame) {
                Http2DataFrame dataFrame = (Http2DataFrame) msg;

                try {
                    if (dataFrame.stream().id() == 3) {
                        assertEquals("Meow", dataFrame.content().toString(CharsetUtil.UTF_8));
                    } else if (dataFrame.stream().id() == 2) {
                        assertEquals("Meow, I am Pushed via HTTP/2", dataFrame.content().toString(CharsetUtil.UTF_8));
                    } else {
                        ctx.writeAndFlush(new DefaultHttp2GoAwayFrame(Http2Error.REFUSED_STREAM));
                    }
                } finally {
                    ReferenceCountUtil.release(dataFrame);
                }
            }
        }

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Frequently Asked Questions

What does channelRead() do?
channelRead() is a function in the netty codebase, defined in codec-http2/src/test/java/io/netty/handler/codec/http2/DefaultHttp2PushPromiseFrameTest.java.
Where is channelRead() defined?
channelRead() is defined in codec-http2/src/test/java/io/netty/handler/codec/http2/DefaultHttp2PushPromiseFrameTest.java at line 189.
What does channelRead() call?
channelRead() calls 1 function(s): channelRead.
What calls channelRead()?
channelRead() is called by 1 function(s): channelRead.

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