Java tutorial
/* * The MIT License (MIT) * * Copyright (c) 2016. Diorite (by Bartomiej Mazur (aka GotoFinal)) * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all * copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ package org.diorite.impl.client.connection; import java.net.InetAddress; import com.google.common.util.concurrent.ThreadFactoryBuilder; import org.apache.commons.lang3.builder.ToStringBuilder; import org.apache.commons.lang3.builder.ToStringStyle; import org.diorite.impl.CoreMain; import org.diorite.impl.DioriteCore; import org.diorite.impl.connection.ConnectionHandler; import org.diorite.impl.connection.EnumProtocol; import org.diorite.utils.lazy.LazyValue; import io.netty.bootstrap.Bootstrap; import io.netty.channel.ChannelFuture; import io.netty.channel.EventLoopGroup; import io.netty.channel.epoll.Epoll; import io.netty.channel.epoll.EpollEventLoopGroup; import io.netty.channel.epoll.EpollSocketChannel; import io.netty.channel.nio.NioEventLoopGroup; import io.netty.channel.socket.SocketChannel; import io.netty.channel.socket.nio.NioSocketChannel; import io.netty.util.AttributeKey; public class ClientConnection extends Thread implements ConnectionHandler { public static final int MILLIS = 500; public final LazyValue<NioEventLoopGroup> nioEventLoopGroupLazyValue; public final LazyValue<EpollEventLoopGroup> epollEventLoopGroupLazyValue; private final AttributeKey<EnumProtocol> protocolKey = AttributeKey.valueOf("protocol"); private NetworkManager connection; private final DioriteCore core; private ChannelFuture channelFuture; @SuppressWarnings("resource") public ClientConnection(final DioriteCore core) { this.core = core; this.setDaemon(true); this.setName("{DioritOS|ClientCon}"); this.nioEventLoopGroupLazyValue = new LazyValue<>(() -> new NioEventLoopGroup(0, new ThreadFactoryBuilder().setNameFormat("DioritOS-Netty#%d").setDaemon(true).build())); this.epollEventLoopGroupLazyValue = new LazyValue<>(() -> new EpollEventLoopGroup(0, new ThreadFactoryBuilder().setNameFormat("DioritOS-Netty#%d").setDaemon(true).build())); } @Override public AttributeKey<EnumProtocol> getProtocolKey() { return this.protocolKey; } @Override public DioriteCore getCore() { return this.core; } @Override public void init(final InetAddress address, final int port, final boolean useEpoll) { final Class<? extends SocketChannel> socketChannelClass; final LazyValue<? extends EventLoopGroup> lazyInit; if ((Epoll.isAvailable()) && useEpoll) { socketChannelClass = EpollSocketChannel.class; lazyInit = this.epollEventLoopGroupLazyValue; CoreMain.debug("[Netty] Using epoll channel type"); } else { socketChannelClass = NioSocketChannel.class; lazyInit = this.nioEventLoopGroupLazyValue; CoreMain.debug("[Netty] Using default channel type"); } this.channelFuture = new Bootstrap().channel(socketChannelClass).handler(new ClientConnectionChannel(this)) .group(lazyInit.get()).remoteAddress(address, port).connect().syncUninterruptibly(); } public void setConnection(final NetworkManager connection) { this.connection = connection; } @Override public void close() { try { this.channelFuture.channel().close().sync(); } catch (final InterruptedException e) { e.printStackTrace(); } } @Override public void run() { } public ChannelFuture getChannelFuture() { return this.channelFuture; } public NetworkManager getConnection() { return this.connection; } @Override public String toString() { return new ToStringBuilder(this, ToStringStyle.SHORT_PREFIX_STYLE).appendSuper(super.toString()) .append("protocolKey", this.protocolKey).append("connection", this.connection) .append("channelFuture", this.channelFuture).append("server", this.core).toString(); } }