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Java > Open Source Codes > org > apache > commons > jxpath > ri > model > jdom > TestJDOMFactory


1 /*
2  * Copyright 1999-2004 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.commons.jxpath.ri.model.jdom;
17
18 import java.util.List JavaDoc;
19
20 import org.apache.commons.jxpath.AbstractFactory;
21 import org.apache.commons.jxpath.JXPathContext;
22 import org.apache.commons.jxpath.Pointer;
23 import org.jdom.Element;
24
25 /**
26  * Test AbstractFactory.
27  *
28  * @author Dmitri Plotnikov
29  * @version $Revision: 1.6 $ $Date: 2004/06/29 22:58:17 $
30  */
31 public class TestJDOMFactory extends AbstractFactory {
32
33     /**
34      * Create a new instance and put it in the collection on the parent object.
35      * Return <b>false</b> if this factory cannot create the requested object.
36      */
37     public boolean createObject(
38         JXPathContext context,
39         Pointer pointer,
40         Object JavaDoc parent,
41         String JavaDoc name,
42         int index)
43     {
44         if (name.equals("location")
45             || name.equals("address")
46             || name.equals("street")) {
47             addJDOMElement((Element) parent, index, name, null);
48             return true;
49         }
50         if (name.startsWith("price:")) {
51             String JavaDoc namespaceURI = context.getNamespaceURI("price");
52             addJDOMElement((Element) parent, index, name, namespaceURI);
53             return true;
54         }
55
56         return false;
57     }
58
59     private void addJDOMElement(Element parent, int index, String JavaDoc tag, String JavaDoc namespaceURI) {
60         List JavaDoc children = parent.getContent();
61         int count = 0;
62         for (int i = 0; i < children.size(); i++) {
63             Object JavaDoc child = children.get(i);
64             if (child instanceof Element
65                 && ((Element) child).getQualifiedName().equals(tag)) {
66                 count++;
67             }
68         }
69
70         // Keep inserting new elements until we have index + 1 of them
71 while (count <= index) {
72             // In a real factory we would need to do the right thing with
73 // the namespace prefix.
74 Element newElement;
75             if (namespaceURI != null) {
76                 String JavaDoc prefix = tag.substring(0, tag.indexOf(':'));
77                 tag = tag.substring(tag.indexOf(':') + 1);
78                 newElement = new Element(tag, prefix, namespaceURI);
79             }
80             else {
81                 newElement = new Element(tag);
82             }
83             parent.addContent(newElement);
84             count++;
85         }
86     }
87
88     public boolean declareVariable(JXPathContext context, String JavaDoc name) {
89         return false;
90     }
91 }
92
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