org.quartzpowered.network.session.SessionManager.java Source code

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Here is the source code for org.quartzpowered.network.session.SessionManager.java

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/*
 * This file is a component of Quartz Powered, this license makes sure any work
 * associated with Quartz Powered, must follow the conditions of the license included.
 *
 * The MIT License (MIT)
 *
 * Copyright (c) 2015 Quartz Powered
 *
 * 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.quartzpowered.network.session;

import io.netty.channel.Channel;
import io.netty.channel.ChannelHandlerContext;
import io.netty.util.Attribute;
import io.netty.util.AttributeKey;

import javax.inject.Inject;
import javax.inject.Singleton;

@Singleton
public class SessionManager {
    private static final AttributeKey<Session> ATTRIBUTE_KEY = AttributeKey.newInstance("session");

    @Inject
    private SessionFactory factory;

    public Session get(Channel channel) {
        Attribute<Session> attribute = channel.attr(ATTRIBUTE_KEY);
        Session session = attribute.get();
        if (session == null) {
            attribute.setIfAbsent(factory.create(channel));
            session = attribute.get();
        }
        return session;
    }

    public Session get(ChannelHandlerContext ctx) {
        return get(ctx.channel());
    }
}