/*******************************************************************************
* Cloud Foundry
* Copyright (c) [2009-2016] Pivotal Software, Inc. All Rights Reserved.
*
* This product is licensed to you under the Apache License, Version 2.0 (the "License").
* You may not use this product except in compliance with the License.
*
* This product includes a number of subcomponents with
* separate copyright notices and license terms. Your use of these
* subcomponents is subject to the terms and conditions of the
* subcomponent's license, as noted in the LICENSE file.
*******************************************************************************/
package org.cloudfoundry.identity.uaa.util;
import java.util.Collections;
import java.util.List;
public class UaaPagingUtils {
/**
* Calculates the substring of a list based on a 1 based start index never
* exceeding
* the bounds of the list.
*
* @param input
* @param startIndex
* @param count
* @return
*/
public static <T> List<T> subList(List<T> input, int startIndex, int count) {
int fromIndex = startIndex - 1;
int toIndex = fromIndex + count;
if (toIndex >= input.size()) {
toIndex = input.size();
}
if (fromIndex >= toIndex) {
return Collections.emptyList();
}
return input.subList(fromIndex, toIndex);
}
}