WindChat/windchat-connector/src/main/java/com/windchat/im/connector/http/HttpServer.java

129 lines
4.8 KiB
Java
Executable File

/**
* Copyright 2018-2028 WindChat Group
*
* Licensed 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.windchat.im.connector.http;
import com.windchat.im.connector.http.handler.HttpServerHandler;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.windchat.common.command.Command;
import com.windchat.common.command.CommandResponse;
import com.windchat.common.executor.AbstracteExecutor;
import com.windchat.common.executor.SimpleExecutor;
import com.windchat.im.connector.constant.AkxProject;
import com.windchat.im.connector.exception.HttpServerException;
import io.netty.bootstrap.ServerBootstrap;
import io.netty.buffer.PooledByteBufAllocator;
import io.netty.channel.AdaptiveRecvByteBufAllocator;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioServerSocketChannel;
import io.netty.handler.codec.http.HttpObjectAggregator;
import io.netty.handler.codec.http.HttpRequestDecoder;
import io.netty.handler.codec.http.HttpResponseEncoder;
import io.netty.handler.stream.ChunkedWriteHandler;
import io.netty.util.concurrent.Future;
import io.netty.util.concurrent.GenericFutureListener;
public abstract class HttpServer {
private static Logger logger = LoggerFactory.getLogger(HttpServer.class);
private ServerBootstrap bootstrap;
private EventLoopGroup parentGroup;
private EventLoopGroup childGroup;
private AbstracteExecutor<Command, CommandResponse> executor;
public HttpServer() {
try {
executor = new SimpleExecutor<Command, CommandResponse>();
loadExecutor(executor);
int needThreadNum = Runtime.getRuntime().availableProcessors() + 1;
int parentNum = 5;// accept from channel socket
int childNum = needThreadNum * 2 + 5;// give to business handler
bootstrap = new ServerBootstrap();
parentGroup = new NioEventLoopGroup(parentNum);
childGroup = new NioEventLoopGroup(childNum);
bootstrap.group(parentGroup, childGroup);
bootstrap.channel(NioServerSocketChannel.class);
// 接受连接的可连接队列大小
bootstrap.option(ChannelOption.SO_BACKLOG, 120);
bootstrap.option(ChannelOption.SO_REUSEADDR, true);
// 设置缓存大小
bootstrap.option(ChannelOption.SO_RCVBUF, 256 * 1024);
bootstrap.option(ChannelOption.SO_SNDBUF, 256 * 1024);// 256 KB/字节
bootstrap.childOption(ChannelOption.SO_KEEPALIVE, true);
bootstrap.childOption(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT);
/**
* 接受缓存区,动态内存分配端的算法
*/
bootstrap.childOption(ChannelOption.RCVBUF_ALLOCATOR, AdaptiveRecvByteBufAllocator.DEFAULT);
bootstrap.childHandler(new ChannelInitializer<SocketChannel>() {
@Override
public void initChannel(SocketChannel ch) throws Exception {
ch.pipeline().addLast(new HttpResponseEncoder());
ch.pipeline().addLast(new HttpRequestDecoder());
ch.pipeline().addLast("aggregator", new HttpObjectAggregator(65536));
ch.pipeline().addLast("streamer", new ChunkedWriteHandler());
ch.pipeline().addLast(new HttpServerHandler(executor));
}
});
} catch (Exception e) {
closeGracefylly();
logger.error(AkxProject.PLN + " init http server error.", e);
System.exit(-200);
}
}
public void start(String address, int port) throws HttpServerException {
try {
ChannelFuture channelFuture = bootstrap.bind(address, port).sync();
channelFuture.channel().closeFuture().addListener(new GenericFutureListener<Future<? super Void>>() {
@Override
public void operationComplete(Future<? super Void> future) throws Exception {
closeGracefylly();
}
});
} catch (Exception e) {
closeGracefylly();
throw new HttpServerException("start openzaly http-server error", e);
}
}
private void closeGracefylly() {
try {
if (parentGroup != null) {
parentGroup.shutdownGracefully();
parentGroup.terminationFuture().sync();
}
if (childGroup != null) {
childGroup.shutdownGracefully();
childGroup.terminationFuture().sync();
}
} catch (InterruptedException e) {
logger.error("shutdown http gracefylly error.", e);
}
}
public abstract void loadExecutor(AbstracteExecutor<Command, CommandResponse> executor);
}