001    /**
002     *   GRANITE DATA SERVICES
003     *   Copyright (C) 2006-2013 GRANITE DATA SERVICES S.A.S.
004     *
005     *   This file is part of the Granite Data Services Platform.
006     *
007     *   Granite Data Services is free software; you can redistribute it and/or
008     *   modify it under the terms of the GNU Lesser General Public
009     *   License as published by the Free Software Foundation; either
010     *   version 2.1 of the License, or (at your option) any later version.
011     *
012     *   Granite Data Services is distributed in the hope that it will be useful,
013     *   but WITHOUT ANY WARRANTY; without even the implied warranty of
014     *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
015     *   General Public License for more details.
016     *
017     *   You should have received a copy of the GNU Lesser General Public
018     *   License along with this library; if not, write to the Free Software
019     *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
020     *   USA, or see <http://www.gnu.org/licenses/>.
021     */
022    package org.granite.util;
023    
024    import java.lang.reflect.Array;
025    import java.lang.reflect.GenericArrayType;
026    import java.lang.reflect.Type;
027    
028    /**
029     * @author Franck WOLFF
030     */
031    public class ArrayUtil {
032    
033        public static Type getComponentType(Type arrayType) {
034            if (arrayType instanceof GenericArrayType)
035                return ((GenericArrayType)arrayType).getGenericComponentType();
036            if (arrayType instanceof Class<?> && ((Class<?>)arrayType).isArray())
037                return ((Class<?>)arrayType).getComponentType();
038            return null;
039        }
040    
041        public static Object newArray(Type componentType, int length) {
042            return Array.newInstance(TypeUtil.classOfType(componentType), length);
043        }
044    }