001    /**
002     * Java Gui Builder - A library to build GUIs using an XML file.
003     * Copyright 2002, 2003 (C) François Beausoleil
004     *
005     * This library is free software; you can redistribute it and/or
006     * modify it under the terms of the GNU Lesser General Public
007     * License as published by the Free Software Foundation; either
008     * version 2.1 of the License, or (at your option) any later version.
009     *
010     * This library is distributed in the hope that it will be useful,
011     * but WITHOUT ANY WARRANTY; without even the implied warranty of
012     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
013     * Lesser General Public License for more details.
014     *
015     * You should have received a copy of the GNU Lesser General Public
016     * License along with this library; if not, write to the Free Software
017     * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
018     */
019    
020    package jgb.handlers.swing;
021    
022    import jgb.builder.TagHandler;
023    import jgb.builder.utils.ConstructorCall;
024    import org.xml.sax.SAXException;
025    
026    import java.util.Map;
027    
028    /**
029     * @since 0.2a
030     * @author Francois Beausoleil, <a href="mailto:fbos@users.sourceforge.net">fbos@users.sourceforge.net</a>
031     */
032    public class ConstructorTagHandler extends AbstractTagHandler {
033        protected void enterElement(Map atts) throws SAXException {
034        }
035    
036        public void exitElement() throws SAXException {
037            ConstructorCall cc = (ConstructorCall)tagContext.get(TagHandler.CURRENT_PARM_ACC_KEY);
038            tagContext.remove(TagHandler.CURRENT_PARM_ACC_KEY);
039    
040            Object createdObject = null;
041            try {
042                createdObject = cc.call();
043            } catch (Exception e) {
044                StringBuffer msg = new StringBuffer();
045                msg.append("Unable to instantiate object with parameters: (").append(cc).append(")");
046    
047                throwParsingException(msg.toString(), e);
048            }
049    
050            String objectId = (String)tagContext.get(TagHandler.CURRENT_OBJECT_ID_KEY);
051            Object currentObject = createdObject;
052    
053            pushCurrentObject(objectId, currentObject);
054            putObject(objectId, currentObject);
055        }
056    }