/*
* GNU LESSER GENERAL PUBLIC LICENSE Copyright (C) 2006 The Lobo Project
*
* This library 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.
*
* This library 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 St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Contact info: lobochief@users.sourceforge.net
*/
/*
* Created on Apr 10, 2005
*/
package com.nvarghese.beowulf.common.cobra.util;
/**
* @author J. H. S.
*/
public class Objects {
/**
*
*/
private Objects() {
}
public static boolean equals(final Object obj1, final Object obj2) {
return obj1 == null ? (obj2 == null) : (obj1.equals(obj2));
}
public static boolean isBoxClass(final Class clazz) {
return clazz == Integer.class || clazz == Boolean.class || clazz == Double.class || clazz == Float.class || clazz == Long.class
|| clazz == Byte.class || clazz == Short.class || clazz == Character.class;
}
public static boolean areAssignableTo(final Object[] objects, final Class[] types) {
int length = objects.length;
if (length != types.length) {
return false;
}
for (int i = 0; i < length; i++) {
if (!isAssignableOrBox(objects[i], types[i])) {
return false;
}
}
return true;
}
public static boolean isAssignableOrBox(final Object value, final Class clazz) {
if (clazz.isInstance(value)) {
return true;
}
if (clazz.isPrimitive()) {
if ((clazz == double.class && value instanceof Double) || (clazz == int.class && value instanceof Integer)
|| (clazz == long.class && value instanceof Long) || (clazz == boolean.class && value instanceof Boolean)
|| (clazz == byte.class && value instanceof Byte) || (clazz == char.class && value instanceof Character)
|| (clazz == short.class && value instanceof Short) || (clazz == float.class && value instanceof Float)) {
return true;
}
}
if (isNumeric(clazz) && isNumeric(value)) {
return true;
}
if (clazz.isAssignableFrom(String.class)) {
return value == null || !value.getClass().isPrimitive();
}
return false;
}
private static boolean isNumeric(final Class clazz) {
return Number.class.isAssignableFrom(clazz)
|| (clazz.isPrimitive() && (clazz == int.class || clazz == double.class || clazz == byte.class || clazz == short.class
|| clazz == float.class || clazz == long.class));
}
private static boolean isNumeric(final Object value) {
if (value == null) {
return false;
}
return isNumeric(value.getClass());
}
}