001    /*
002     * ============================================================================
003     * GNU Lesser General Public License
004     * ============================================================================
005     *
006     * Beanlet - JSE Application Container.
007     * Copyright (C) 2006  Leon van Zantvoort
008     * 
009     * This library is free software; you can redistribute it and/or
010     * modify it under the terms of the GNU Lesser General Public
011     * License as published by the Free Software Foundation; either
012     * version 2.1 of the License, or (at your option) any later version.
013     * 
014     * This library is distributed in the hope that it will be useful,
015     * but WITHOUT ANY WARRANTY; without even the implied warranty of
016     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
017     * Lesser General Public License for more details.
018     * 
019     * You should have received a copy of the GNU Lesser General Public
020     * License along with this library; if not, write to the Free Software
021     * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307, USA.
022     * 
023     * Leon van Zantvoort
024     * 243 Acalanes Drive #11
025     * Sunnyvale, CA 94086
026     * USA
027     *
028     * zantvoort@users.sourceforge.net
029     * http://beanlet.org
030     */
031    package org.beanlet;
032    
033    import java.lang.reflect.Member;
034    
035    /**
036     * Thrown if injectant does not match member type.
037     *
038     * @author Leon van Zantvoort
039     */
040    public class BeanletTypeMismatchException extends BeanletWiringException {
041        
042        private static final long serialVersionUID = 1183456034632463344L;
043        
044        public BeanletTypeMismatchException(String beanletName, Member target,
045                Class<?> expected, Class<?> found) {
046            super(beanletName, target, getMessage(expected, found));
047        }
048        
049        private static String getMessage(Class<?> expected, Class<?> found) {
050            if (expected.isAssignableFrom(found)) {
051                return "Found type does not equal expected type. Expected type: '" + 
052                        expected + "'. Found type: '" + found + "'.";
053            } else {
054                return "Found type is not a subtype of expected type. " +
055                        "Expected type: '" + expected + "'. Found type: '" + found + "'.";
056            }
057        }
058    }