com.alltobid.quotabid.BidServerHandler.java Source code

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Here is the source code for com.alltobid.quotabid.BidServerHandler.java

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/*
 * Copyright 2013 The Netty Project
 *
 * The Netty 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 com.alltobid.quotabid;

import java.util.concurrent.atomic.AtomicLong;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import io.netty.channel.Channel;
import io.netty.channel.ChannelDuplexHandler;
import io.netty.channel.ChannelHandler.Sharable;
import io.netty.channel.ChannelHandlerContext;
import io.netty.handler.timeout.IdleState;
import io.netty.handler.timeout.IdleStateEvent;
import io.netty.util.ReferenceCountUtil;
import io.netty.util.internal.ConcurrentSet;

@Sharable
public class BidServerHandler extends ChannelDuplexHandler {
    private final ConcurrentSet<Channel> channels = new ConcurrentSet<Channel>();
    private final Logger logger = LoggerFactory.getLogger(BidServerHandler.class);
    private final AtomicLong channelInactiveTimes = new AtomicLong();

    @Override
    public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
        ReferenceCountUtil.release(msg);
    }

    @Override
    public void handlerAdded(ChannelHandlerContext ctx) throws Exception {
        channels.add(ctx.channel());
    }

    @Override
    public void handlerRemoved(ChannelHandlerContext ctx) throws Exception {
        channels.remove(ctx.channel());
    }

    @Override
    public void channelInactive(ChannelHandlerContext ctx) throws Exception {
        channelInactiveTimes.incrementAndGet();
        super.channelInactive(ctx);
    }

    @Override
    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) {
        logger.debug("BidServerHandler caught an exception.", cause);
        ctx.close();
    }

    @Override
    public void userEventTriggered(ChannelHandlerContext ctx, Object evt) throws Exception {
        if (evt instanceof IdleStateEvent) {
            IdleStateEvent e = (IdleStateEvent) evt;
            if (e.state() == IdleState.READER_IDLE) {
                ctx.close();
            }
        }
    }

    public void BroadcastMessage(String message) {
        if (channels.isEmpty()) {
            return;
        }

        // ??Channel????
        channels.parallelStream().forEach(c -> {
            if (c.isWritable()) {
                c.writeAndFlush(message, c.voidPromise());
            }
        });
    }

    public int getChannelCount() {
        return channels.size();
    }

    public long getChannelInactiveTimes() {
        return channelInactiveTimes.get();
    }
}