9621a5b981
Motivation: Some imports are not used Modification: remove unused imports Result: Code cleanup
54 lines
2.2 KiB
Java
54 lines
2.2 KiB
Java
/*
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* Copyright 2016 The Netty Project
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*
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* The Netty Project licenses this file to you under the Apache License, version 2.0 (the
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* "License"); you may not use this file except in compliance with the License. You may obtain a
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* copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software distributed under the License
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* is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
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* or implied. See the License for the specific language governing permissions and limitations under
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* the License.
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*/
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package io.netty.example.http2.helloworld.frame.server;
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import io.netty.channel.ChannelHandlerContext;
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import io.netty.example.http2.helloworld.server.HelloWorldHttp1Handler;
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import io.netty.handler.codec.http.HttpObjectAggregator;
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import io.netty.handler.codec.http.HttpServerCodec;
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import io.netty.handler.codec.http2.Http2FrameCodecBuilder;
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import io.netty.handler.ssl.ApplicationProtocolNames;
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import io.netty.handler.ssl.ApplicationProtocolNegotiationHandler;
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/**
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* Negotiates with the browser if HTTP2 or HTTP is going to be used. Once decided, the Netty
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* pipeline is setup with the correct handlers for the selected protocol.
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*/
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public class Http2OrHttpHandler extends ApplicationProtocolNegotiationHandler {
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private static final int MAX_CONTENT_LENGTH = 1024 * 100;
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protected Http2OrHttpHandler() {
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super(ApplicationProtocolNames.HTTP_1_1);
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}
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@Override
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protected void configurePipeline(ChannelHandlerContext ctx, String protocol) throws Exception {
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if (ApplicationProtocolNames.HTTP_2.equals(protocol)) {
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ctx.pipeline().addLast(Http2FrameCodecBuilder.forServer().build(), new HelloWorldHttp2Handler());
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return;
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}
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if (ApplicationProtocolNames.HTTP_1_1.equals(protocol)) {
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ctx.pipeline().addLast(new HttpServerCodec(),
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new HttpObjectAggregator(MAX_CONTENT_LENGTH),
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new HelloWorldHttp1Handler("ALPN Negotiation"));
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return;
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}
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throw new IllegalStateException("unknown protocol: " + protocol);
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}
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}
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