/**
* Copyright (c) 2014, Sana
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the Sana nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL Sana BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.sana.util;
public final class Arrays{
private Arrays(){}
/**
* Copies <code>newLength</code> elements from original into a new
* array. If <code>newLength</code> is greater than
* <code>original.length</code>, the result is padded with the value
* <code>null</code>.
*
* @param original the original array
* @param newLength the length of the new array
* @throws NegativeArraySizeException if newLength < 0
* @throws NullPointerException if <code>original == null</code>
*/
public static <T> T[] copyOf(T[] original, int newLength){
if(original == null)
throw new NullPointerException("Can not copy null array");
if(newLength < 0)
throw new NegativeArraySizeException("Array size must be >= 0");
T[] copy = (T[]) new Object[newLength];
int index = 0;
while(index < newLength){
copy[index] = (index < original.length)?original[index]:null;
index++;
}
return copy;
}
}