channelRead0() — netty Function Reference

Architecture documentation for the channelRead0() function in HttpUploadClientHandler.java from the netty codebase.

Function java Buffer Telemetry

Entity Profile

Buffer→ Telemetry→ channelRead0() — netty Function Reference

Dependency Diagram

graph TD
  04bbefde_29f0_e956_9653_f281646ba84c["channelRead0()"]
  e4fa85df_a638_b076_44db_9526fb6537c5["HttpUploadClientHandler"]
  04bbefde_29f0_e956_9653_f281646ba84c -->|defined in| e4fa85df_a638_b076_44db_9526fb6537c5
  style 04bbefde_29f0_e956_9653_f281646ba84c fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

example/src/main/java/io/netty/example/http/upload/HttpUploadClientHandler.java lines 34–72

    @Override
    public void channelRead0(ChannelHandlerContext ctx, HttpObject msg) {
        if (msg instanceof HttpResponse) {
            HttpResponse response = (HttpResponse) msg;

            System.err.println("STATUS: " + response.status());
            System.err.println("VERSION: " + response.protocolVersion());

            if (!response.headers().isEmpty()) {
                for (CharSequence name : response.headers().names()) {
                    for (CharSequence value : response.headers().getAll(name)) {
                        System.err.println("HEADER: " + name + " = " + value);
                    }
                }
            }

            if (response.status().code() == 200 && HttpUtil.isTransferEncodingChunked(response)) {
                readingChunks = true;
                System.err.println("CHUNKED CONTENT {");
            } else {
                System.err.println("CONTENT {");
            }
        }
        if (msg instanceof HttpContent) {
            HttpContent chunk = (HttpContent) msg;
            System.err.println(chunk.content().toString(CharsetUtil.UTF_8));

            if (chunk instanceof LastHttpContent) {
                if (readingChunks) {
                    System.err.println("} END OF CHUNKED CONTENT");
                } else {
                    System.err.println("} END OF CONTENT");
                }
                readingChunks = false;
            } else {
                System.err.println(chunk.content().toString(CharsetUtil.UTF_8));
            }
        }
    }