    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;
    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 parent,
    41          String 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 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 tag, String namespaceURI) {
    60          List children = parent.getContent();
    61          int count = 0;
    62          for (int i = 0; i < children.size(); i++) {
    63              Object 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 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 name) {
    89          return false;
    90      }
    91  }