Java tutorial
/* * Copyright 2015 The Netty Project * * The Netty Project licenses this file to you under the Apache License, * version 2.0 (the "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations * under the License. */ package com.flysoloing.learning.network.netty.http2.tiles; import io.netty.channel.ChannelHandlerContext; import io.netty.handler.codec.http.HttpObjectAggregator; import io.netty.handler.codec.http.HttpServerCodec; import io.netty.handler.codec.http2.DefaultHttp2Connection; import io.netty.handler.codec.http2.HttpToHttp2ConnectionHandlerBuilder; import io.netty.handler.codec.http2.InboundHttp2ToHttpAdapter; import io.netty.handler.codec.http2.InboundHttp2ToHttpAdapterBuilder; import io.netty.handler.ssl.ApplicationProtocolNames; import io.netty.handler.ssl.ApplicationProtocolNegotiationHandler; /** * Used during protocol negotiation, the main function of this handler is to * return the HTTP/1.1 or HTTP/2 handler once the protocol has been negotiated. */ public class Http2OrHttpHandler extends ApplicationProtocolNegotiationHandler { private static final int MAX_CONTENT_LENGTH = 1024 * 100; protected Http2OrHttpHandler() { super(ApplicationProtocolNames.HTTP_1_1); } @Override protected void configurePipeline(ChannelHandlerContext ctx, String protocol) throws Exception { if (ApplicationProtocolNames.HTTP_2.equals(protocol)) { configureHttp2(ctx); return; } if (ApplicationProtocolNames.HTTP_1_1.equals(protocol)) { configureHttp1(ctx); return; } throw new IllegalStateException("unknown protocol: " + protocol); } private static void configureHttp2(ChannelHandlerContext ctx) { DefaultHttp2Connection connection = new DefaultHttp2Connection(true); InboundHttp2ToHttpAdapter listener = new InboundHttp2ToHttpAdapterBuilder(connection) .propagateSettings(true).validateHttpHeaders(false).maxContentLength(MAX_CONTENT_LENGTH).build(); ctx.pipeline().addLast(new HttpToHttp2ConnectionHandlerBuilder().frameListener(listener) // .frameLogger(TilesHttp2ToHttpHandler.logger) .connection(connection).build()); ctx.pipeline().addLast(new Http2RequestHandler()); } private static void configureHttp1(ChannelHandlerContext ctx) throws Exception { ctx.pipeline().addLast(new HttpServerCodec(), new HttpObjectAggregator(MAX_CONTENT_LENGTH), new FallbackRequestHandler()); } }