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Java > Open Source Codes > org > jboss > kernel > plugins > deployment > xml > AnnotationHandler


1 /*
2 * JBoss, Home of Professional Open Source
3 * Copyright 2006, JBoss Inc., and individual contributors as indicated
4 * by the @authors tag. See the copyright.txt in the distribution for a
5 * full listing of individual contributors.
6 *
7 * This is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU Lesser General Public License as
9 * published by the Free Software Foundation; either version 2.1 of
10 * the License, or (at your option) any later version.
11 *
12 * This software is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this software; if not, write to the Free
19 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21 */
22 package org.jboss.kernel.plugins.deployment.xml;
23
24 import javax.xml.namespace.QName JavaDoc;
25
26 import org.jboss.beans.metadata.plugins.AbstractAnnotationMetaData;
27 import org.jboss.xb.binding.sunday.unmarshalling.DefaultElementHandler;
28 import org.jboss.xb.binding.sunday.unmarshalling.ElementBinding;
29
30 /**
31  * AnnotationHandler.
32  *
33  * @author <a HREF="adrian@jboss.com">Adrian Brock</a>
34  * @version $Revision: 46386 $
35  */
36 public class AnnotationHandler extends DefaultElementHandler
37 {
38    /** The handler */
39    public static final AnnotationHandler HANDLER = new AnnotationHandler();
40
41    public Object JavaDoc startElement(Object JavaDoc parent, QName JavaDoc name, ElementBinding element)
42    {
43       return new AbstractAnnotationMetaData();
44    }
45
46    public Object JavaDoc endElement(Object JavaDoc o, QName JavaDoc qName, ElementBinding element)
47    {
48       AbstractAnnotationMetaData annotation = (AbstractAnnotationMetaData) o;
49       if (annotation.getAnnotation() == null || annotation.getAnnotation().length() == 0)
50       {
51          throw new IllegalArgumentException JavaDoc("Empty <annotation/> content");
52       }
53       if (!annotation.getAnnotation().startsWith("@"))
54       {
55          throw new IllegalArgumentException JavaDoc("<annotation/> content must be a fully qualified annotation type name prefixed with '@'");
56       }
57       
58       return annotation;
59    }
60 }
61
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