Iterables.java

/*
 * Copyright 2012-2017 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.boot.actuate.metrics;

import java.util.ArrayList;
import java.util.Collection;

/**
 * @author Dave Syer
 */
public abstract class Iterables {

	public static <T> Collection<T> collection(Iterable<T> iterable) {
		if (iterable instanceof Collection) {
			return (Collection<T>) iterable;
		}
		ArrayList<T> list = new ArrayList<>();
		for (T t : iterable) {
			list.add(t);
		}
		return list;
	}

}