me.zhuoran.amoeba.netty.server.HttpServer.java Source code

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Here is the source code for me.zhuoran.amoeba.netty.server.HttpServer.java

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/*
 * Copyright (c) 2012 Zhuoran Wang <zoran.wang@gmail.com>
 *
 * 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 me.zhuoran.amoeba.netty.server;

import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.Channel;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.nio.NioServerSocketChannel;
import io.netty.handler.logging.LogLevel;
import io.netty.handler.logging.LoggingHandler;

import java.util.LinkedList;
import java.util.List;

import me.zhuoran.amoeba.netty.server.http.AbstractExecutor;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.ApplicationContext;

/**
 * An HTTP server that sends back the content of the received HTTP request in a pretty plaintext form.
 */

public class HttpServer {

    private final static Logger logger = LoggerFactory.getLogger("amoeba");

    private final int port;

    public static ApplicationContext ctx = null;

    public static List<String> executorNameList = new LinkedList<String>();

    public HttpServer() {
        port = 8081;
    }

    public HttpServer(final int port) {
        this.port = port;
    }

    public HttpServer(final int port, ApplicationContext ctx) {
        this.port = port;
        HttpServer.ctx = ctx;
        String[] executorNames = ctx.getBeanNamesForType(AbstractExecutor.class);
        for (String beanName : executorNames) {
            executorNameList.add(beanName.toLowerCase());
            logger.debug("Spring loaded bean name " + beanName.toLowerCase());
        }
    }

    public void run(int eventLoopThreads, int maxContentLength) throws Exception {
        // Configure the server.
        EventLoopGroup bossGroup = new NioEventLoopGroup();// bossGroup??
        EventLoopGroup workerGroup = new NioEventLoopGroup(eventLoopThreads);// //workerGroup??boss??
        try {
            //ServerBootstrap?NIO????Channel?????
            ServerBootstrap b = new ServerBootstrap();
            b.option(ChannelOption.SO_BACKLOG, 1024);// ?
            b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                    .handler(new LoggingHandler(LogLevel.INFO))
                    .childHandler(new HttpServerInitializer(maxContentLength));

            Channel ch = b.bind(port).sync().channel();
            ch.closeFuture().sync();
        } finally {
            bossGroup.shutdownGracefully();
            workerGroup.shutdownGracefully();
        }
    }

}