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/*
 * Copyright (C) 2020 Graylog, Inc.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the Server Side Public License, version 1,
 * as published by MongoDB, Inc.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * Server Side Public License for more details.
 *
 * You should have received a copy of the Server Side Public License
 * along with this program. If not, see
 * .
 */
package org.graylog2.inputs.transports.netty;

import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import io.netty.channel.group.ChannelGroup;

public class ChannelRegistrationHandler extends ChannelInboundHandlerAdapter {
    private final ChannelGroup channels;

    public ChannelRegistrationHandler(ChannelGroup channels) {
        this.channels = channels;
    }

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

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