club.jmint.crossing.server.CrossingServer.java Source code

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Here is the source code for club.jmint.crossing.server.CrossingServer.java

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/*
 * Copyright 2016 The Crossing Project
 *
 * The Crossing 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:
 *
 *   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 club.jmint.crossing.server;

import club.jmint.crossing.config.ConfigWizard;
import club.jmint.crossing.config.ServerConfig;
import club.jmint.crossing.runtime.Constants;
import club.jmint.crossing.utils.CrossLog;
import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.ChannelFuture;
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 io.netty.handler.ssl.SslContext;
import io.netty.handler.ssl.SslContextBuilder;
import io.netty.handler.ssl.util.SelfSignedCertificate;

/**
 * @author shc
 *
 */
public class CrossingServer {
    private String address;
    private int port;
    private int backlog;
    private boolean ssl;
    private SslContext sslCtx;
    private CrossingServerState state = CrossingServerState.STATE_UNINIT;

    enum CrossingServerState {
        STATE_UNINIT, STATE_INIT, STATE_RUN, STATE_SHUTDOWN
    };

    public CrossingServer() {
    }

    public void start() {
        //load configuration
        //ConfigWizard cw = (ConfigWizard)WizardManager.getWizard("ConfigWizard");
        ServerConfig config = (ServerConfig) ConfigWizard.getConfig(Constants.CONFIG_SERVER);
        this.address = config.getItem("server.bind_address");
        this.port = Integer.parseInt(config.getItem("server.port"));
        this.backlog = Integer.parseInt(config.getItem("server.backlog"));
        this.ssl = Boolean.parseBoolean(config.getItem("server.ssl"));

        //Configure SSL
        if (ssl) {
            try {
                SelfSignedCertificate ssc = new SelfSignedCertificate();
                sslCtx = SslContextBuilder.forServer(ssc.certificate(), ssc.privateKey()).build();
            } catch (Exception e) {
                CrossLog.printStackTrace(e);
            }
        } else {
            sslCtx = null;
        }

        //Configure the server.
        EventLoopGroup bossGroup = new NioEventLoopGroup(1);
        EventLoopGroup workerGroup = new NioEventLoopGroup();
        try {
            ServerBootstrap b = new ServerBootstrap();
            b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                    .option(ChannelOption.SO_BACKLOG, backlog).handler(new LoggingHandler(LogLevel.INFO))
                    .childHandler(new ServerChannelInitializer(sslCtx));

            // Start the server.
            ChannelFuture f = b.bind(port).sync();
            CrossLog.logger.info("Crossing Server started......");

            // Wait until the server socket is closed.
            f.channel().closeFuture().sync();

        } catch (InterruptedException e) {
            CrossLog.printStackTrace(e);
        } finally {
            // Shut down all event loops to terminate all threads.
            bossGroup.shutdownGracefully();
            workerGroup.shutdownGracefully();
            CrossLog.logger.info("Crossing Server shutdown......");
        }
    }

}