org.n52.io.Utils Maven / Gradle / Ivy
/*
* Copyright (C) 2013-2019 52°North Initiative for Geospatial Open Source
* Software GmbH
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*
* If the program is linked with libraries which are licensed under one of
* the following licenses, the combination of the program with the linked
* library is not considered a "derivative work" of the program:
*
* - Apache License, version 2.0
* - Apache Software License, version 1.0
* - GNU Lesser General Public License, version 3
* - Mozilla Public License, versions 1.0, 1.1 and 2.0
* - Common Development and Distribution License (CDDL), version 1.0
*
* Therefore the distribution of the program linked with libraries licensed
* under the aforementioned licenses, is permitted by the copyright holders
* if the distribution is compliant with both the GNU General Public License
* version 2 and the aforementioned licenses.
*
* This program 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 General Public License
* for more details.
*/
package org.n52.io;
import java.lang.reflect.Array;
public final class Utils {
private Utils() {
// hide construction
}
/**
*
* Copies an array via
* {@link System#arraycopy(Object, int, Object, int, int)}. This is useful
* for objects encapsulating arrays from being externally modified.
*
*
* Note: No deep copy is made.
*
* @param the source's type
* @param source the array to copy.
* @return a copied instance of the array.
*/
@SuppressWarnings("unchecked")
public static T[] copy(T[] source) {
if (source != null) {
Class< ?> type = source.getClass().getComponentType();
T[] target = (T[]) Array.newInstance(type, source.length);
System.arraycopy(source, 0, target, 0, source.length);
return target;
} else {
return null;
}
}
}