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testServerCloseSocketInputProvidesData() — netty Function Reference

Architecture documentation for the testServerCloseSocketInputProvidesData() function in HttpClientCodecTest.java from the netty codebase.

Function java Buffer Allocators

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Dependency Diagram

graph TD
  327ec659_e29e_87dc_59e2_519c04baf487["testServerCloseSocketInputProvidesData()"]
  c395f8e2_08a9_4e0c_820e_5851189d51c7["HttpClientCodecTest"]
  327ec659_e29e_87dc_59e2_519c04baf487 -->|defined in| c395f8e2_08a9_4e0c_820e_5851189d51c7
  style 327ec659_e29e_87dc_59e2_519c04baf487 fill:#6366f1,stroke:#818cf8,color:#fff

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Source Code

codec-http/src/test/java/io/netty/handler/codec/http/HttpClientCodecTest.java lines 126–202

    @Test
    public void testServerCloseSocketInputProvidesData() throws InterruptedException {
        ServerBootstrap sb = new ServerBootstrap();
        Bootstrap cb = new Bootstrap();
        final CountDownLatch serverChannelLatch = new CountDownLatch(1);
        final CountDownLatch responseReceivedLatch = new CountDownLatch(1);
        try {
            sb.group(new MultiThreadIoEventLoopGroup(2, NioIoHandler.newFactory()));
            sb.channel(NioServerSocketChannel.class);
            sb.childHandler(new ChannelInitializer<Channel>() {
                @Override
                protected void initChannel(Channel ch) throws Exception {
                    // Don't use the HttpServerCodec, because we don't want to have content-length or anything added.
                    ch.pipeline().addLast(new HttpRequestDecoder(4096, 8192, 8192, true));
                    ch.pipeline().addLast(new HttpObjectAggregator(4096));
                    ch.pipeline().addLast(new SimpleChannelInboundHandler<FullHttpRequest>() {
                        @Override
                        protected void channelRead0(ChannelHandlerContext ctx, FullHttpRequest msg) {
                            // This is just a simple demo...don't block in IO
                            assertTrue(ctx.channel() instanceof SocketChannel);
                            final SocketChannel sChannel = (SocketChannel) ctx.channel();
                            /**
                             * The point of this test is to not add any content-length or content-encoding headers
                             * and the client should still handle this.
                             * See <a href="https://tools.ietf.org/html/rfc7230#section-3.3.3">RFC 7230, 3.3.3</a>.
                             */
                            sChannel.writeAndFlush(Unpooled.wrappedBuffer(("HTTP/1.0 200 OK\r\n" +
                            "Date: Fri, 31 Dec 1999 23:59:59 GMT\r\n" +
                            "Content-Type: text/html\r\n\r\n").getBytes(CharsetUtil.ISO_8859_1)))
                                    .addListener(future -> {
                                        assertTrue(future.isSuccess());
                                        sChannel.writeAndFlush(Unpooled.wrappedBuffer(
                                                "<html><body>hello half closed!</body></html>\r\n"
                                                .getBytes(CharsetUtil.ISO_8859_1)))
                                                .addListener(f -> {
                                                    assertTrue(f.isSuccess());
                                                    sChannel.shutdownOutput();
                                                });
                                    });
                        }
                    });
                    serverChannelLatch.countDown();
                }
            });

            cb.group(new MultiThreadIoEventLoopGroup(1, NioIoHandler.newFactory()));
            cb.channel(NioSocketChannel.class);
            cb.option(ChannelOption.ALLOW_HALF_CLOSURE, true);
            cb.handler(new ChannelInitializer<Channel>() {
                @Override
                protected void initChannel(Channel ch) throws Exception {
                    ch.pipeline().addLast(new HttpClientCodec(4096, 8192, 8192, true, true));
                    ch.pipeline().addLast(new HttpObjectAggregator(4096));
                    ch.pipeline().addLast(new SimpleChannelInboundHandler<FullHttpResponse>() {
                        @Override
                        protected void channelRead0(ChannelHandlerContext ctx, FullHttpResponse msg) {
                            responseReceivedLatch.countDown();
                        }
                    });
                }
            });

            Channel serverChannel = sb.bind(new InetSocketAddress(0)).sync().channel();
            int port = ((InetSocketAddress) serverChannel.localAddress()).getPort();

            ChannelFuture ccf = cb.connect(new InetSocketAddress(NetUtil.LOCALHOST, port));
            assertTrue(ccf.awaitUninterruptibly().isSuccess());
            Channel clientChannel = ccf.channel();
            assertTrue(serverChannelLatch.await(5, SECONDS));
            clientChannel.writeAndFlush(new DefaultHttpRequest(HttpVersion.HTTP_1_1, HttpMethod.GET, "/"));
            assertTrue(responseReceivedLatch.await(5, SECONDS));
        } finally {
            sb.config().group().shutdownGracefully().syncUninterruptibly();
            sb.config().childGroup().shutdownGracefully().syncUninterruptibly();
            cb.config().group().shutdownGracefully().syncUninterruptibly();
        }
    }

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Frequently Asked Questions

What does testServerCloseSocketInputProvidesData() do?
testServerCloseSocketInputProvidesData() is a function in the netty codebase, defined in codec-http/src/test/java/io/netty/handler/codec/http/HttpClientCodecTest.java.
Where is testServerCloseSocketInputProvidesData() defined?
testServerCloseSocketInputProvidesData() is defined in codec-http/src/test/java/io/netty/handler/codec/http/HttpClientCodecTest.java at line 126.

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