com.hotels.styx.server.netty.eventloop.PlatformAwareServerEventLoopFactory Maven / Gradle / Ivy

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/**
 * Copyright (C) 2013-2017 Expedia Inc.
 *
 * 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 com.hotels.styx.server.netty.eventloop;

import com.hotels.styx.server.ServerEventLoopFactory;
import com.hotels.styx.server.netty.eventloop.epoll.EpollServerEventLoopGroupFactory;
import com.hotels.styx.server.netty.eventloop.nio.NioServerEventLoopGroupFactory;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.ServerChannel;
import io.netty.channel.epoll.Epoll;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * A factory that creates platform aware server event loops.
 */
public class PlatformAwareServerEventLoopFactory implements ServerEventLoopFactory {
    private static final Logger LOG = LoggerFactory.getLogger(PlatformAwareServerEventLoopFactory.class);
    private final ServerEventLoopFactory delegate;

    public PlatformAwareServerEventLoopFactory(String name, int bossThreadsCount, int workerThreadsCount) {
        if (Epoll.isAvailable()) {
            LOG.info("Epoll is available so using the native socket transport.");
            delegate = new EpollServerEventLoopGroupFactory(name, bossThreadsCount, workerThreadsCount);
        } else {
            LOG.info("Epoll not available Using nio socket transport.");
            delegate = new NioServerEventLoopGroupFactory(name, bossThreadsCount, workerThreadsCount);
        }
    }

    @Override
    public EventLoopGroup newBossEventLoopGroup() {
        return delegate.newBossEventLoopGroup();
    }

    @Override
    public EventLoopGroup newWorkerEventLoopGroup() {
        return delegate.newWorkerEventLoopGroup();
    }

    @Override
    public Class serverChannelClass() {
        return delegate.serverChannelClass();
    }
}