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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *     http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  package org.apache.commons.jxpath.ri.model.jdom;
18  
19  import java.util.List;
20  
21  import org.apache.commons.jxpath.AbstractFactory;
22  import org.apache.commons.jxpath.JXPathContext;
23  import org.apache.commons.jxpath.Pointer;
24  import org.jdom.Element;
25  
26  /**
27   * Test AbstractFactory.
28   *
29   * @author Dmitri Plotnikov
30   * @version $Revision: 480417 $ $Date: 2006-11-29 06:37:40 +0100 (Mi, 29 Nov 2006) $
31   */
32  public class TestJDOMFactory extends AbstractFactory {
33  
34      /**
35       * Create a new instance and put it in the collection on the parent object.
36       * Return <b>false</b> if this factory cannot create the requested object.
37       */
38      public boolean createObject(
39          JXPathContext context,
40          Pointer pointer,
41          Object parent,
42          String name,
43          int index) 
44      {
45          if (name.equals("location")
46              || name.equals("address")
47              || name.equals("street")) {
48              addJDOMElement((Element) parent, index, name, null);
49              return true;
50          }
51          if (name.startsWith("price:")) {
52              String namespaceURI = context.getNamespaceURI("price");
53              addJDOMElement((Element) parent, index, name, namespaceURI);
54              return true;
55          }
56  
57          return false;
58      }
59  
60      private void addJDOMElement(Element parent, int index, String tag, String namespaceURI) {
61          List children = parent.getContent();
62          int count = 0;
63          for (int i = 0; i < children.size(); i++) {
64              Object child = children.get(i);
65              if (child instanceof Element
66                  && ((Element) child).getQualifiedName().equals(tag)) {
67                  count++;
68              }
69          }
70  
71          // Keep inserting new elements until we have index + 1 of them
72          while (count <= index) {
73              // In a real factory we would need to do the right thing with
74              // the namespace prefix.
75              Element newElement;
76              if (namespaceURI != null) {
77                  String prefix = tag.substring(0, tag.indexOf(':'));
78                  tag = tag.substring(tag.indexOf(':') + 1);
79                  newElement = new Element(tag, prefix, namespaceURI);
80              }
81              else {
82                  newElement = new Element(tag);
83              }
84              parent.addContent(newElement);
85              count++;
86          }
87      }
88  
89      public boolean declareVariable(JXPathContext context, String name) {
90          return false;
91      }
92  }