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/*
 * This file is part of Log4Jdbc.
 *
 * Log4Jdbc is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Log4Jdbc is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Log4Jdbc.  If not, see .
 *
 */
package fr.ms.lang.sync.impl;

import java.util.concurrent.atomic.AtomicLong;

import fr.ms.lang.delegate.SyncLongFactory;

/**
 *
 * @see Marco4J
 *
 *
 * @author Marco Semiao
 *
 */
public class AtomicLongImpl implements SyncLong {

	private final static SyncLongFactory factory = new Factory();

	private final AtomicLong atomicLong;

	public AtomicLongImpl() {
		atomicLong = new AtomicLong();
	}

	public AtomicLongImpl(final long initialValue) {
		atomicLong = new AtomicLong(initialValue);
	}

	public long addAndGet(final long delta) {
		return atomicLong.addAndGet(delta);
	}

	public long incrementAndGet() {
		return atomicLong.incrementAndGet();
	}

	public long decrementAndGet() {
		return atomicLong.decrementAndGet();
	}

	public long get() {
		return atomicLong.get();
	}

	public static SyncLongFactory getSyncLongFactory() {
		return factory;
	}

	public int hashCode() {
		final int prime = 31;
		int result = 1;
		result = prime * result + ((atomicLong == null) ? 0 : atomicLong.hashCode());
		return result;
	}

	public boolean equals(final Object obj) {
		if (this == obj) {
			return true;
		}
		if (obj == null) {
			return false;
		}
		if (getClass() != obj.getClass()) {
			return false;
		}
		final AtomicLongImpl other = (AtomicLongImpl) obj;
		if (atomicLong == null) {
			if (other.atomicLong != null) {
				return false;
			}
		} else if (!atomicLong.equals(other.atomicLong)) {
			return false;
		}
		return true;
	}

	public String toString() {
		return atomicLong.toString();
	}

	private final static class Factory implements SyncLongFactory {

		public SyncLong newLong() {
			return new AtomicLongImpl();
		}

		public SyncLong newLong(final long initialValue) {
			return new AtomicLongImpl(initialValue);
		}
	}
}