/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2020 Ziver Koc
 *
 * 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 zutil.net.nio.worker;

import zutil.net.nio.NioNetwork;

import java.net.SocketAddress;
import java.util.LinkedList;


public abstract class Worker {
    private LinkedList<WorkerEventData> queue = new LinkedList<>();


    public void processData(NioNetwork server, SocketAddress remote, Object data) {
        synchronized(queue) {
            queue.add(new WorkerEventData(server, remote, data));
            queue.notify();
        }
    }


    /**
     * @return true if there is a event in the queue
     */
    protected boolean hasEvent() {
        return !queue.isEmpty();
    }

    /**
     * Polls a event from the list or blocks until there is a event available
     *
     * @return the next event
     */
    protected WorkerEventData pollEvent() {
        synchronized(queue) {
            while (queue.isEmpty()) {
                try {
                    queue.wait();
                } catch (InterruptedException e) {}
            }
        }
        return queue.poll();
    }
}
