/*
* Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package org.jboss.com.sun.corba.se.impl.orbutil;
import java.lang.reflect.Array;
public final class ObjectUtility
{
private ObjectUtility()
{
}
/**
* If arr1 and arr2 are both arrays of the same component type, return an array of that component type that consists
* of the elements of arr1 followed by the elements of arr2. Throws IllegalArgumentException otherwise.
*/
public static Object concatenateArrays(Object arr1, Object arr2)
{
Class<?> comp1 = arr1.getClass().getComponentType();
Class<?> comp2 = arr2.getClass().getComponentType();
int len1 = Array.getLength(arr1);
int len2 = Array.getLength(arr2);
if ((comp1 == null) || (comp2 == null))
throw new IllegalStateException("Arguments must be arrays");
if (!comp1.equals(comp2))
throw new IllegalStateException("Arguments must be arrays with the same component type");
Object result = Array.newInstance(comp1, len1 + len2);
int index = 0;
for (int ctr = 0; ctr < len1; ctr++)
Array.set(result, index++, Array.get(arr1, ctr));
for (int ctr = 0; ctr < len2; ctr++)
Array.set(result, index++, Array.get(arr2, ctr));
return result;
}
}