ArrayUtil.java

/**
 *   GRANITE DATA SERVICES
 *   Copyright (C) 2006-2015 GRANITE DATA SERVICES S.A.S.
 *
 *   This file is part of the Granite Data Services Platform.
 *
 *   Granite Data Services is free software; you can redistribute it and/or
 *   modify it under the terms of the GNU Lesser General Public
 *   License as published by the Free Software Foundation; either
 *   version 2.1 of the License, or (at your option) any later version.
 *
 *   Granite Data Services 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 Lesser
 *   General Public License for more details.
 *
 *   You should have received a copy of the GNU Lesser General Public
 *   License along with this library; if not, write to the Free Software
 *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
 *   USA, or see <http://www.gnu.org/licenses/>.
 */
package org.granite.util;

import java.lang.reflect.Array;
import java.lang.reflect.GenericArrayType;
import java.lang.reflect.Type;

/**
 * @author Franck WOLFF
 */
public class ArrayUtil {

    public static Type getComponentType(Type arrayType) {
        if (arrayType instanceof GenericArrayType)
            return ((GenericArrayType)arrayType).getGenericComponentType();
        if (arrayType instanceof Class<?> && ((Class<?>)arrayType).isArray())
            return ((Class<?>)arrayType).getComponentType();
        return null;
    }

    public static Object newArray(Type componentType, int length) {
        return Array.newInstance(TypeUtil.classOfType(componentType), length);
    }
}