PropertyHandler


1   /*
2    * Copyright 2001-2004 The Apache Software Foundation.
3    * 
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    * 
8    *      http://www.apache.org/licenses/LICENSE-2.0
9    * 
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  package org.apache.juddi.handler;
17  
18  import org.apache.juddi.datatype.AddressLine;
19  import org.apache.juddi.datatype.RegistryObject;
20  import org.apache.juddi.datatype.response.Property;
21  import org.w3c.dom.Element  ;
22  
23  /**
24   * Knows about the creation and populating of Property objects.
25   *
26   * @author Steve Viens (sviens@apache.org)
27   */
28  public class PropertyHandler extends AbstractHandler
29  {
30    public static final String   TAG_NAME = "property";
31  
32    private HandlerMaker maker = null;
33  
34    protected PropertyHandler(HandlerMaker maker)
35    {
36      this.maker = maker;
37    }
38  
39    public RegistryObject unmarshal(Element   element)
40    {
41      Property obj = new Property();
42  
43      // Attributes
44      String   name = element.getAttribute("name");
45      if ((name != null) && (name.trim().length() > 0))
46        obj.setName(name);
47  
48      String   value = element.getAttribute("value");
49      if ((value != null) && (value.trim().length() > 0))
50        obj.setValue(value);
51  
52      // Text Node Value
53      // {none}
54  
55      // Child Elements
56      // {none}
57  
58      return obj;
59    }
60  
61    public void marshal(RegistryObject object,Element   parent)
62    {
63      Property property = (Property)object;
64      Element   element = parent.getOwnerDocument().createElementNS(null,TAG_NAME);
65  
66      String   name = property.getName();
67      if ((name != null) && (name.trim().length() > 0))
68        element.setAttribute("name",name);
69  
70      String   value = property.getValue();
71      if ((value != null) && (value.trim().length() > 0))
72        element.setAttribute("value",value);
73  
74      parent.appendChild(element);
75    }
76  
77  
78    /***************************************************************************/
79    /***************************** TEST DRIVER *********************************/
80    /***************************************************************************/
81  
82  
83    public static void main(String   args[])
84      throws Exception  
85    {
86      // create the source object
87      Property inprop = new Property("nameAttr","valueAttr");
88  
89      // unmarshal & marshal (object->xml->object)
90      HandlerMaker maker = HandlerMaker.getInstance();
91      AbstractHandler handler = maker.lookup(PropertyHandler.TAG_NAME);
92      Element   element = null;
93      handler.marshal(inprop,element);
94      AddressLine outprop = (AddressLine)handler.unmarshal(element);
95  
96      // compare unmarshaled with marshaled obj
97      if (outprop.equals(inprop))
98        System.out.println("Input and output are the same.");
99      else
100       System.out.println("Input and output are NOT the same!");
101   }
102 }
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