/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF 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 org.apache.ignite.internal.runner.app.client.proxy;

import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.socket.SocketChannel;
import java.util.concurrent.atomic.AtomicInteger;

class IgniteClientProxyInitializer extends ChannelInitializer<SocketChannel> {
    private final int remotePort;

    private final AtomicInteger requestCounter = new AtomicInteger();

    IgniteClientProxyInitializer(int remotePort) {
        this.remotePort = remotePort;
    }

    int requestCount() {
        return requestCounter.get();
    }

    int resetRequestCount() {
        return requestCounter.getAndSet(0);
    }

    @Override
    public void initChannel(SocketChannel ch) {
        ch.pipeline().addLast(
                new RequestTrackingHandler(),
                new IgniteClientProxyFrontendHandler(remotePort));
    }

    private class RequestTrackingHandler extends ChannelInboundHandlerAdapter {
        @Override
        public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
            requestCounter.incrementAndGet();
            super.channelRead(ctx, msg);
        }
    }
}
