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/*
 * Copyright 2017 Huawei Technologies Co., Ltd
 *
 * 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.
 */

package io.servicecomb.foundation.vertx.client;

import java.util.concurrent.atomic.AtomicInteger;

public class NetThreadData {
    // 每个网络线程提供一个factory
    private ClientPoolFactory factory;

    // 每个网络线程有多个连接池
    private CLIENT_POOL[] pools;

    private AtomicInteger bindIndex = new AtomicInteger();

    @SuppressWarnings("unchecked")
    public NetThreadData(ClientPoolFactory factory, int poolCount) {
        this.factory = factory;
        pools = (CLIENT_POOL[]) new Object[poolCount];
    }

    public ClientPoolFactory getFactory() {
        return factory;
    }

    public CLIENT_POOL[] getPools() {
        return pools;
    }

    public AtomicInteger getBindIndex() {
        return bindIndex;
    }

    public CLIENT_POOL selectClientPool() {
        int idx = bindIndex.getAndIncrement() % pools.length;
        CLIENT_POOL clientPool = pools[idx];
        if (clientPool == null) {
            clientPool = factory.createClientPool();
            pools[idx] = clientPool;
        }
        return clientPool;
    }
}