com.mpush.core.server.ConnectionServer.java Source code

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Here is the source code for com.mpush.core.server.ConnectionServer.java

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/*
 * (C) Copyright 2015-2016 the original author or authors.
 *
 * 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.
 *
 * Contributors:
 *   ohun@live.cn ()
 */

package com.mpush.core.server;

import com.mpush.api.connection.ConnectionManager;
import com.mpush.api.protocol.Command;
import com.mpush.api.service.Listener;
import com.mpush.api.spi.handler.PushHandlerFactory;
import com.mpush.common.MessageDispatcher;
import com.mpush.core.handler.*;
import com.mpush.netty.server.NettyTCPServer;
import com.mpush.tools.config.CC;
import com.mpush.tools.config.CC.mp.net.rcv_buf;
import com.mpush.tools.config.CC.mp.net.snd_buf;
import com.mpush.tools.thread.NamedPoolThreadFactory;
import com.mpush.tools.thread.ThreadNames;
import com.mpush.tools.thread.pool.ThreadPoolManager;
import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.ChannelHandler;
import io.netty.channel.ChannelOption;
import io.netty.channel.ChannelPipeline;
import io.netty.channel.WriteBufferWaterMark;
import io.netty.handler.traffic.GlobalChannelTrafficShapingHandler;

import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;

import static com.mpush.tools.config.CC.mp.net.traffic_shaping.connect_server.*;
import static com.mpush.tools.config.CC.mp.net.write_buffer_water_mark.connect_server_high;
import static com.mpush.tools.config.CC.mp.net.write_buffer_water_mark.connect_server_low;
import static com.mpush.tools.thread.ThreadNames.T_TRAFFIC_SHAPING;

/**
 * Created by ohun on 2015/12/30.
 *
 * @author ohun@live.cn ()
 */
public final class ConnectionServer extends NettyTCPServer {
    private static ConnectionServer I;

    private ServerChannelHandler channelHandler;
    private GlobalChannelTrafficShapingHandler trafficShapingHandler;
    private ScheduledExecutorService trafficShapingExecutor;

    private ConnectionManager connectionManager = new ServerConnectionManager(true);

    public static ConnectionServer I() {
        if (I == null) {
            synchronized (ConnectionServer.class) {
                if (I == null) {
                    I = new ConnectionServer();
                }
            }
        }
        return I;
    }

    private ConnectionServer() {
        super(CC.mp.net.connect_server_port);
    }

    @Override
    public void init() {
        super.init();
        connectionManager.init();
        MessageDispatcher receiver = new MessageDispatcher();
        receiver.register(Command.HEARTBEAT, new HeartBeatHandler());
        receiver.register(Command.HANDSHAKE, new HandshakeHandler());
        receiver.register(Command.BIND, new BindUserHandler());
        receiver.register(Command.UNBIND, new BindUserHandler());
        receiver.register(Command.FAST_CONNECT, new FastConnectHandler());
        receiver.register(Command.PUSH, PushHandlerFactory.create());
        receiver.register(Command.ACK, new AckHandler());
        if (CC.mp.http.proxy_enabled) {
            receiver.register(Command.HTTP_PROXY, new HttpProxyHandler());
        }
        channelHandler = new ServerChannelHandler(true, connectionManager, receiver);

        if (CC.mp.net.traffic_shaping.connect_server.enabled) {//?????
            trafficShapingExecutor = Executors
                    .newSingleThreadScheduledExecutor(new NamedPoolThreadFactory(T_TRAFFIC_SHAPING));
            trafficShapingHandler = new GlobalChannelTrafficShapingHandler(trafficShapingExecutor,
                    write_global_limit, read_global_limit, write_channel_limit, read_channel_limit, check_interval);
        }
    }

    @Override
    public void start(Listener listener) {
        super.start(listener);
        if (this.workerGroup != null) {// 
            ThreadPoolManager.I.register("conn-worker", this.workerGroup);
        }
    }

    @Override
    public void stop(Listener listener) {
        super.stop(listener);
        if (trafficShapingHandler != null) {
            trafficShapingHandler.release();
            trafficShapingExecutor.shutdown();
        }
        connectionManager.destroy();
    }

    @Override
    protected int getWorkThreadNum() {
        return CC.mp.thread.pool.conn_work;
    }

    @Override
    protected String getBossThreadName() {
        return ThreadNames.T_CONN_BOSS;
    }

    @Override
    protected String getWorkThreadName() {
        return ThreadNames.T_CONN_WORKER;
    }

    @Override
    protected void initPipeline(ChannelPipeline pipeline) {
        super.initPipeline(pipeline);
        if (trafficShapingHandler != null) {
            pipeline.addLast(trafficShapingHandler);
        }
    }

    @Override
    protected void initOptions(ServerBootstrap b) {
        super.initOptions(b);

        b.option(ChannelOption.SO_BACKLOG, 1024);

        /**
         * TCP????
         * NettyChannelOptionSO_SNDBUFSO_RCVBUF
         * ????????32K?
         */
        if (snd_buf.connect_server > 0)
            b.childOption(ChannelOption.SO_SNDBUF, snd_buf.connect_server);
        if (rcv_buf.connect_server > 0)
            b.childOption(ChannelOption.SO_RCVBUF, rcv_buf.connect_server);

        /**
         * ??????????
         * ???????????????
         * ????????
         * ????????
         * ??????
         * ???NettyChannelOutboundBuffer
         * buffernetty?channel write?buffer???????(?channelbuffer)
         * ??32(32?)32?
         * ?(?TCP??)
         * ??buffer???(?swap?linux killer)
         * ?channel?channel?active?
         *
         * ChannelOutboundBuffer????
         * buffer??channelisWritable??false
         * buffer??isWritable??trueisWritablefalse????
         * ???64K?32K???????
         */
        b.childOption(ChannelOption.WRITE_BUFFER_WATER_MARK,
                new WriteBufferWaterMark(connect_server_low, connect_server_high));
    }

    @Override
    public ChannelHandler getChannelHandler() {
        return channelHandler;
    }

    public ConnectionManager getConnectionManager() {
        return connectionManager;
    }
}