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


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.AbstractDependencyValueMetaData;
28 import org.jboss.beans.metadata.spi.ValueMetaData;
29 import org.jboss.dependency.spi.ControllerState;
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  * FactoryHandler.
36  *
37  * @author <a HREF="adrian@jboss.com">Adrian Brock</a>
38  * @version $Revision: 56471 $
39  */
40 public class FactoryHandler extends DefaultElementHandler
41 {
42    /** The handler */
43    public static final FactoryHandler HANDLER = new FactoryHandler();
44
45    public Object JavaDoc startElement(Object JavaDoc parent, QName JavaDoc name, ElementBinding element)
46    {
47       return new Holder(new AbstractDependencyValueMetaData());
48    }
49
50    public void attributes(Object JavaDoc o, QName JavaDoc elementName, ElementBinding element, Attributes JavaDoc attrs, NamespaceContext JavaDoc nsCtx)
51    {
52       Holder value = (Holder) o;
53       AbstractDependencyValueMetaData dependency = (AbstractDependencyValueMetaData) value.getValue();
54       for (int i = 0; i < attrs.getLength(); ++i)
55       {
56          String JavaDoc localName = attrs.getLocalName(i);
57          if ("bean".equals(localName))
58             dependency.setValue(attrs.getValue(i));
59          else if ("property".equals(localName))
60             dependency.setProperty(attrs.getValue(i));
61          else if ("state".equals(localName))
62             dependency.setDependentState(new ControllerState(attrs.getValue(i)));
63          else if ("whenRequired".equals(localName))
64             dependency.setWhenRequiredState(new ControllerState(attrs.getValue(i)));
65       }
66    }
67
68    public Object JavaDoc endElement(Object JavaDoc o, QName JavaDoc qName, ElementBinding element)
69    {
70       Holder holder = (Holder) o;
71       ValueMetaData value = (ValueMetaData) holder.getValue();
72
73       if (value == null || value.getUnderlyingValue() == null)
74          throw new IllegalArgumentException JavaDoc("Factory should have a bean attribute or nested element.");
75       return value;
76    }
77 }
78
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