/*
 * Copyright (C) 2022 NotEnoughUpdates contributors
 *
 * This file is part of NotEnoughUpdates.
 *
 * NotEnoughUpdates is free software: you can redistribute it
 * and/or modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation, either
 * version 3 of the License, or (at your option) any later version.
 *
 * NotEnoughUpdates 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with NotEnoughUpdates. If not, see <https://www.gnu.org/licenses/>.
 */

package io.github.moulberry.notenoughupdates.util;

import java.util.Iterator;

public class IteratorUtils {

	public static <T> T getOnlyElement(Iterator<T> it, T defaultValue) {
		if (!it.hasNext()) return defaultValue;
		T ret = it.next();
		if (it.hasNext()) return defaultValue;
		return ret;
	}

	public static <T> T getOnlyElement(Iterable<T> it, T defaultValue) {
		return getOnlyElement(it.iterator(), defaultValue);
	}
}