KickJava   Java API By Example, From Geeks To Geeks.

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


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.AbstractDemandMetaData;
28 import org.jboss.dependency.spi.ControllerState;
29 import org.jboss.xb.binding.sunday.unmarshalling.DefaultElementHandler;
30 import org.jboss.xb.binding.sunday.unmarshalling.ElementBinding;
31 import org.xml.sax.Attributes JavaDoc;
32
33 /**
34  * DemandHandler.
35  *
36  * @author <a HREF="adrian@jboss.com">Adrian Brock</a>
37  * @version $Revision: 43105 $
38  */
39 public class DemandHandler extends DefaultElementHandler
40 {
41    /** The handler */
42    public static final DemandHandler HANDLER = new DemandHandler();
43
44    public Object JavaDoc startElement(Object JavaDoc parent, QName JavaDoc name, ElementBinding element)
45    {
46       return new AbstractDemandMetaData();
47    }
48
49    public void attributes(Object JavaDoc o, QName JavaDoc elementName, ElementBinding element, Attributes JavaDoc attrs, NamespaceContext JavaDoc nsCtx)
50    {
51       AbstractDemandMetaData demand = (AbstractDemandMetaData) o;
52       for (int i = 0; i < attrs.getLength(); ++i)
53       {
54          String JavaDoc localName = attrs.getLocalName(i);
55          if ("state".equals(localName))
56             demand.setWhenRequired(new ControllerState(attrs.getValue(i)));
57       }
58    }
59    
60    public Object JavaDoc endElement(Object JavaDoc o, QName JavaDoc qName, ElementBinding element)
61    {
62       AbstractDemandMetaData x = (AbstractDemandMetaData) o;
63       String JavaDoc name = (String JavaDoc) x.getDemand();
64       if (name == null || name.trim().length() == 0)
65          throw new IllegalArgumentException JavaDoc("Null or empty demand.");
66       return o;
67    }
68 }
69
Popular Tags