129 lines
4.8 KiB
Java
Executable File
129 lines
4.8 KiB
Java
Executable File
/**
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* Copyright 2018-2028 WindChat Group
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a 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
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.windchat.im.connector.http;
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import com.windchat.im.connector.http.handler.HttpServerHandler;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import com.windchat.common.command.Command;
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import com.windchat.common.command.CommandResponse;
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import com.windchat.common.executor.AbstracteExecutor;
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import com.windchat.common.executor.SimpleExecutor;
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import com.windchat.im.connector.constant.AkxProject;
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import com.windchat.im.connector.exception.HttpServerException;
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import io.netty.bootstrap.ServerBootstrap;
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import io.netty.buffer.PooledByteBufAllocator;
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import io.netty.channel.AdaptiveRecvByteBufAllocator;
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import io.netty.channel.ChannelFuture;
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import io.netty.channel.ChannelInitializer;
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import io.netty.channel.ChannelOption;
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import io.netty.channel.EventLoopGroup;
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import io.netty.channel.nio.NioEventLoopGroup;
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import io.netty.channel.socket.SocketChannel;
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import io.netty.channel.socket.nio.NioServerSocketChannel;
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import io.netty.handler.codec.http.HttpObjectAggregator;
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import io.netty.handler.codec.http.HttpRequestDecoder;
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import io.netty.handler.codec.http.HttpResponseEncoder;
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import io.netty.handler.stream.ChunkedWriteHandler;
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import io.netty.util.concurrent.Future;
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import io.netty.util.concurrent.GenericFutureListener;
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public abstract class HttpServer {
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private static Logger logger = LoggerFactory.getLogger(HttpServer.class);
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private ServerBootstrap bootstrap;
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private EventLoopGroup parentGroup;
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private EventLoopGroup childGroup;
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private AbstracteExecutor<Command, CommandResponse> executor;
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public HttpServer() {
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try {
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executor = new SimpleExecutor<Command, CommandResponse>();
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loadExecutor(executor);
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int needThreadNum = Runtime.getRuntime().availableProcessors() + 1;
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int parentNum = 5;// accept from channel socket
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int childNum = needThreadNum * 2 + 5;// give to business handler
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bootstrap = new ServerBootstrap();
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parentGroup = new NioEventLoopGroup(parentNum);
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childGroup = new NioEventLoopGroup(childNum);
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bootstrap.group(parentGroup, childGroup);
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bootstrap.channel(NioServerSocketChannel.class);
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// 接受连接的可连接队列大小
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bootstrap.option(ChannelOption.SO_BACKLOG, 120);
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bootstrap.option(ChannelOption.SO_REUSEADDR, true);
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// 设置缓存大小
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bootstrap.option(ChannelOption.SO_RCVBUF, 256 * 1024);
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bootstrap.option(ChannelOption.SO_SNDBUF, 256 * 1024);// 256 KB/字节
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bootstrap.childOption(ChannelOption.SO_KEEPALIVE, true);
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bootstrap.childOption(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT);
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/**
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* 接受缓存区,动态内存分配端的算法
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*/
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bootstrap.childOption(ChannelOption.RCVBUF_ALLOCATOR, AdaptiveRecvByteBufAllocator.DEFAULT);
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bootstrap.childHandler(new ChannelInitializer<SocketChannel>() {
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@Override
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public void initChannel(SocketChannel ch) throws Exception {
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ch.pipeline().addLast(new HttpResponseEncoder());
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ch.pipeline().addLast(new HttpRequestDecoder());
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ch.pipeline().addLast("aggregator", new HttpObjectAggregator(65536));
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ch.pipeline().addLast("streamer", new ChunkedWriteHandler());
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ch.pipeline().addLast(new HttpServerHandler(executor));
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}
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});
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} catch (Exception e) {
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closeGracefylly();
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logger.error(AkxProject.PLN + " init http server error.", e);
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System.exit(-200);
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}
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}
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public void start(String address, int port) throws HttpServerException {
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try {
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ChannelFuture channelFuture = bootstrap.bind(address, port).sync();
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channelFuture.channel().closeFuture().addListener(new GenericFutureListener<Future<? super Void>>() {
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@Override
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public void operationComplete(Future<? super Void> future) throws Exception {
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closeGracefylly();
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}
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});
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} catch (Exception e) {
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closeGracefylly();
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throw new HttpServerException("start openzaly http-server error", e);
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}
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}
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private void closeGracefylly() {
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try {
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if (parentGroup != null) {
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parentGroup.shutdownGracefully();
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parentGroup.terminationFuture().sync();
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}
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if (childGroup != null) {
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childGroup.shutdownGracefully();
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childGroup.terminationFuture().sync();
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}
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} catch (InterruptedException e) {
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logger.error("shutdown http gracefylly error.", e);
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}
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}
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public abstract void loadExecutor(AbstracteExecutor<Command, CommandResponse> executor);
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}
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