com.liferay.petra.function.UnsafeConsumer Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of com.liferay.source.formatter

Liferay Source Formatter

There is a newer version: 1.0.1457

/**
 * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
 *
 * This library 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 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library 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.
 */

package com.liferay.petra.function;

import java.util.Collection;

/**
 * @author Shuyang Zhou
 */
@FunctionalInterface
public interface UnsafeConsumer {

	public static  void accept(
			Collection collection,
			UnsafeConsumer unsafeConsumer)
		throws Throwable {

		accept(collection, unsafeConsumer, Throwable.class);
	}

	public static  void accept(
			Collection collection, UnsafeConsumer unsafeConsumer,
			Class throwableClass)
		throws T {

		T throwable1 = null;

		for (E e : collection) {
			try {
				unsafeConsumer.accept(e);
			}
			catch (Throwable throwable2) {
				if (!throwableClass.isInstance(throwable2)) {

					// Unexpected exception stops the loop and suppresses
					// previous expected exceptions

					if (throwable1 != null) {
						throwable2.addSuppressed(throwable1);
					}

					throw throwable2;
				}

				if (throwable1 == null) {
					throwable1 = throwableClass.cast(throwable2);
				}
				else {
					throwable1.addSuppressed(throwable2);
				}
			}
		}

		if (throwable1 != null) {
			throw throwable1;
		}
	}

	public void accept(E e) throws T;

}