001/*
002  GRANITE DATA SERVICES
003  Copyright (C) 2011 GRANITE DATA SERVICES S.A.S.
004
005  This file is part of Granite Data Services.
006
007  Granite Data Services is free software; you can redistribute it and/or modify
008  it under the terms of the GNU Library General Public License as published by
009  the Free Software Foundation; either version 2 of the License, or (at your
010  option) any later version.
011
012  Granite Data Services is distributed in the hope that it will be useful, but
013  WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
014  FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
015  for more details.
016
017  You should have received a copy of the GNU Library General Public License
018  along with this library; if not, see <http://www.gnu.org/licenses/>.
019*/
020
021package org.granite.util;
022
023import java.lang.reflect.Array;
024import java.lang.reflect.GenericArrayType;
025import java.lang.reflect.Type;
026
027/**
028 * @author Franck WOLFF
029 */
030public class ArrayUtil {
031
032    public static Type getComponentType(Type arrayType) {
033        if (arrayType instanceof GenericArrayType)
034            return ((GenericArrayType)arrayType).getGenericComponentType();
035        if (arrayType instanceof Class<?> && ((Class<?>)arrayType).isArray())
036            return ((Class<?>)arrayType).getComponentType();
037        return null;
038    }
039
040    public static Object newArray(Type componentType, int length) {
041        return Array.newInstance(TypeUtil.classOfType(componentType), length);
042    }
043}