Http2ServerInitializer.java — netty Source File

Source Code

/*
 * Copyright 2016 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:
 *
 *   https://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 io.netty.example.http2.helloworld.multiplex.server;

import static io.netty.util.internal.ObjectUtil.checkPositiveOrZero;

import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelPipeline;
import io.netty.channel.SimpleChannelInboundHandler;
import io.netty.channel.socket.SocketChannel;
import io.netty.example.http2.helloworld.server.HelloWorldHttp1Handler;
import io.netty.handler.codec.http.HttpMessage;
import io.netty.handler.codec.http.HttpObjectAggregator;
import io.netty.handler.codec.http.HttpServerCodec;
import io.netty.handler.codec.http.HttpServerUpgradeHandler;
import io.netty.handler.codec.http.HttpServerUpgradeHandler.UpgradeCodec;
import io.netty.handler.codec.http.HttpServerUpgradeHandler.UpgradeCodecFactory;
import io.netty.handler.codec.http2.Http2FrameCodecBuilder;
import io.netty.handler.codec.http2.Http2CodecUtil;
import io.netty.handler.codec.http2.Http2MultiplexHandler;
import io.netty.handler.codec.http2.Http2ServerUpgradeCodec;
import io.netty.handler.ssl.SslContext;
import io.netty.util.AsciiString;
import io.netty.util.ReferenceCountUtil;

/**
 * Sets up the Netty pipeline for the example server. Depending on the endpoint config, sets up the
 * pipeline for NPN or cleartext HTTP upgrade to HTTP/2.
 */
public class Http2ServerInitializer extends ChannelInitializer<SocketChannel> {

    private static final UpgradeCodecFactory upgradeCodecFactory = new UpgradeCodecFactory() {
        @Override
        public UpgradeCodec newUpgradeCodec(CharSequence protocol) {
            if (AsciiString.contentEquals(Http2CodecUtil.HTTP_UPGRADE_PROTOCOL_NAME, protocol)) {
                return new Http2ServerUpgradeCodec(
                        Http2FrameCodecBuilder.forServer().build(),
                        new Http2MultiplexHandler(new HelloWorldHttp2Handler()));
            } else {
                return null;
            }
        }
    };

// ... (64 more lines)