    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.dom;
    17
    18  import org.apache.commons.jxpath.AbstractFactory;
    19  import org.apache.commons.jxpath.JXPathContext;
    20  import org.apache.commons.jxpath.Pointer;
    21  import org.w3c.dom.Document;
    22  import org.w3c.dom.Node;
    23
    24  /***
    25   * Test AbstractFactory.
    26   *
    27   * @author Dmitri Plotnikov
    28   * @version $Revision: 1.6 $ $Date: 2004/06/29 22:58:17 $
    29   */
    30  public class TestDOMFactory extends AbstractFactory {
    31
    32      /***
    33       * Return <b>false</b> if this factory cannot create the requested object.
    34       */
    35      public boolean createObject(
    36          JXPathContext context,
    37          Pointer pointer,
    38          Object parent,
    39          String name,
    40          int index)
    41      {
    42          if (name.equals("location")
    43              || name.equals("address")
    44              || name.equals("street")) {
    45              addDOMElement((Node) parent, index, name, null);
    46              return true;
    47          }
    48          if (name.startsWith("price:")) {
    49              String namespaceURI = context.getNamespaceURI("price");
    50              addDOMElement((Node) parent, index, name, namespaceURI);
    51              return true;
    52          }
    53          return false;
    54      }
    55
    56      private void addDOMElement(Node parent, int index, String tag, String namespaceURI) {
    57          Node child = parent.getFirstChild();
    58          int count = 0;
    59          while (child != null) {
    60              if (child.getNodeName().equals(tag)) {
    61                  count++;
    62              }
    63              child = child.getNextSibling();
    64          }
    65
    66          // Keep inserting new elements until we have index + 1 of them
    67          while (count <= index) {
    68              Document doc = parent.getOwnerDocument();
    69              Node newElement;
    70              if (namespaceURI == null) {
    71                  newElement = doc.createElement(tag);
    72              }
    73              else {
    74                  newElement = doc.createElementNS(namespaceURI, tag);
    75              }
    76
    77              parent.appendChild(newElement);
    78              count++;
    79          }
    80      }
    81
    82      public boolean declareVariable(JXPathContext context, String name) {
    83          return false;
    84      }
    85  }