001    /**
002     * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portal.fabric.netty.rpc;
016    
017    import com.liferay.portal.kernel.util.CentralizedThreadLocal;
018    
019    import io.netty.channel.Channel;
020    
021    /**
022     * @author Shuyang Zhou
023     */
024    public class ChannelThreadLocal {
025    
026            public static Channel getChannel() {
027                    Channel channel = _channelThreadLocal.get();
028    
029                    if (channel == null) {
030                            throw new IllegalStateException("Channel is null");
031                    }
032    
033                    return channel;
034            }
035    
036            public static void removeChannel() {
037                    _channelThreadLocal.remove();
038            }
039    
040            public static void setChannel(Channel channel) {
041                    _channelThreadLocal.set(channel);
042            }
043    
044            private static final ThreadLocal<Channel> _channelThreadLocal =
045                    new CentralizedThreadLocal<>(false);
046    
047    }