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


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.NamespaceContext JavaDoc;
25 import javax.xml.namespace.QName JavaDoc;
26
27 import org.jboss.beans.metadata.plugins.AbstractBeanMetaData;
28 import org.jboss.beans.metadata.spi.ConstructorMetaData;
29 import org.jboss.dependency.spi.ControllerMode;
30 import org.jboss.xb.binding.sunday.unmarshalling.DefaultElementHandler;
31 import org.jboss.xb.binding.sunday.unmarshalling.ElementBinding;
32 import org.xml.sax.Attributes JavaDoc;
33
34 /**
35  * BeanHandler.
36  *
37  * @author <a HREF="adrian@jboss.com">Adrian Brock</a>
38  * @version $Revision: 43013 $
39  */
40 public class BeanHandler extends DefaultElementHandler
41 {
42    /** The handler */
43    public static final BeanHandler HANDLER = new BeanHandler();
44    
45    public Object JavaDoc startElement(Object JavaDoc parent, QName JavaDoc name, ElementBinding element)
46    {
47       return new AbstractBeanMetaData();
48    }
49
50    public void attributes(Object JavaDoc o, QName JavaDoc elementName, ElementBinding element, Attributes JavaDoc attrs, NamespaceContext JavaDoc nsCtx)
51    {
52       AbstractBeanMetaData bean = (AbstractBeanMetaData) o;
53       for (int i = 0; i < attrs.getLength(); ++i)
54       {
55          String JavaDoc localName = attrs.getLocalName(i);
56          if ("name".equals(localName))
57             bean.setName(attrs.getValue(i));
58          else if ("class".equals(localName))
59             bean.setBean(attrs.getValue(i));
60          else if ("mode".equals(localName))
61             bean.setMode(new ControllerMode(attrs.getValue(i)));
62       }
63    }
64
65    public Object JavaDoc endElement(Object JavaDoc o, QName JavaDoc qName, ElementBinding element)
66    {
67       AbstractBeanMetaData bean = (AbstractBeanMetaData) o;
68       if (bean.getBean() == null)
69       {
70          ConstructorMetaData constructor = bean.getConstructor();
71          if (constructor == null)
72             throw new IllegalArgumentException JavaDoc("Bean should have a class attribute or a constructor element.");
73          if (constructor.getFactoryMethod() == null)
74          {
75             if (constructor.getValue() == null)
76                throw new IllegalArgumentException JavaDoc("Bean should have a class attribute or the constructor element should have either a factoryMethod attribute or embedded value.");
77          }
78          else if (constructor.getFactory() == null && constructor.getFactoryClass() == null)
79             throw new IllegalArgumentException JavaDoc("Bean should have a class attribute or the constructor element should have one of a factoryClass attribute or a factory element, or embedded value.");
80       }
81       return bean;
82    }
83 }
84
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