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Java > Open Source Codes > org > apache > juddi > handler > FindQualifiersHandler


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 java.util.Vector JavaDoc;
19
20 import org.apache.juddi.datatype.RegistryObject;
21 import org.apache.juddi.datatype.request.FindQualifier;
22 import org.apache.juddi.datatype.request.FindQualifiers;
23 import org.apache.juddi.util.xml.XMLUtils;
24 import org.w3c.dom.Element JavaDoc;
25
26 /**
27  * "Knows about the creation and populating of FindQualifiers objects.
28  * Returns FindQualifiers."
29  *
30  * @author Steve Viens (sviens@apache.org)
31  */
32 public class FindQualifiersHandler extends AbstractHandler
33 {
34   public static final String JavaDoc TAG_NAME = "findQualifiers";
35
36   private HandlerMaker maker = null;
37
38   protected FindQualifiersHandler(HandlerMaker maker)
39   {
40     this.maker = maker;
41   }
42
43   public RegistryObject unmarshal(Element JavaDoc element)
44   {
45     FindQualifiers obj = new FindQualifiers();
46     Vector JavaDoc nodeList = null;
47     AbstractHandler handler = null;
48
49     // Attributes
50 // {none}
51
52     // Text Node Value
53 // {none}
54
55     // Child Elements
56 nodeList = XMLUtils.getChildElementsByTagName(element,FindQualifierHandler.TAG_NAME);
57     for (int i=0; i<nodeList.size(); i++)
58     {
59       handler = maker.lookup(FindQualifierHandler.TAG_NAME);
60       obj.addFindQualifier((FindQualifier)handler.unmarshal((Element JavaDoc)nodeList.elementAt(i)));
61     }
62
63     return obj;
64   }
65
66   public void marshal(RegistryObject object,Element JavaDoc parent)
67   {
68     FindQualifiers qualifiers = (FindQualifiers)object;
69     Element JavaDoc element = parent.getOwnerDocument().createElementNS(null,TAG_NAME);
70     AbstractHandler handler = null;
71
72     Vector JavaDoc qVector = qualifiers.getFindQualifierVector();
73     if ((qVector!=null) && (qVector.size() > 0))
74     {
75       handler = maker.lookup(FindQualifierHandler.TAG_NAME);
76       for (int i=0; i < qVector.size(); i++)
77         handler.marshal((FindQualifier)qVector.elementAt(i),element);
78     }
79
80     parent.appendChild(element);
81   }
82
83
84   /***************************************************************************/
85   /***************************** TEST DRIVER *********************************/
86   /***************************************************************************/
87
88
89   public static void main(String JavaDoc args[])
90     throws Exception JavaDoc
91   {
92     HandlerMaker maker = HandlerMaker.getInstance();
93     AbstractHandler handler = maker.lookup(FindQualifiersHandler.TAG_NAME);
94
95     Element JavaDoc parent = XMLUtils.newRootElement();
96     Element JavaDoc child = null;
97
98     FindQualifiers qualifiers = new FindQualifiers();
99     qualifiers.addFindQualifier(new FindQualifier(FindQualifier.SORT_BY_DATE_ASC));
100     qualifiers.addFindQualifier(new FindQualifier(FindQualifier.AND_ALL_KEYS));
101
102     System.out.println();
103
104     RegistryObject regObject = qualifiers;
105     handler.marshal(regObject,parent);
106     child = (Element JavaDoc)parent.getFirstChild();
107     parent.removeChild(child);
108     XMLUtils.writeXML(child,System.out);
109
110     System.out.println();
111
112     regObject = handler.unmarshal(child);
113     handler.marshal(regObject,parent);
114     child = (Element JavaDoc)parent.getFirstChild();
115     parent.removeChild(child);
116     XMLUtils.writeXML(child,System.out);
117   }
118 }
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