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1   /*
2    * Redistribution and use of this software and associated documentation ("Software"), with or
3    * without modification, are permitted provided that the following conditions are met:
4    *
5    * 1. Redistributions of source code must retain copyright statements and notices. Redistributions
6    * must also contain a copy of this document.
7    *
8    * 2. Redistributions in binary form must reproduce the above copyright notice, this list of
9    * conditions and the following disclaimer in the documentation and/or other materials provided with
10   * the distribution.
11   *
12   * 3. The name "Exolab" must not be used to endorse or promote products derived from this Software
13   * without prior written permission of Intalio, Inc. For written permission, please contact
14   * info@exolab.org.
15   *
16   * 4. Products derived from this Software may not be called "Exolab" nor may "Exolab" appear in
17   * their names without prior written permission of Intalio, Inc. Exolab is a registered trademark of
18   * Intalio, Inc.
19   *
20   * 5. Due credit should be given to the Exolab Project (http://www.exolab.org/).
21   *
22   * THIS SOFTWARE IS PROVIDED BY INTALIO, INC. AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESSED OR
23   * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
24   * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL INTALIO, INC. OR ITS
25   * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
28   * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
29   * WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30   *
31   * Copyright 1999 (C) Intalio, Inc. All Rights Reserved.
32   *
33   * $Id$
34   */
35  package org.exolab.castor.xml.location;
36  
37  import java.util.Vector;
38  
39  import org.apache.commons.lang3.StringUtils;
40  
41  
42  /**
43   * A very simple XPath location class for use with the ValidationException. This class only supports
44   * the parent "/" operator and element names.
45   *
46   * @author <a href="mailto:kvisco@intalio.com">Keith Visco</a>
47   * @version $Revision$ $Date: 2003-03-03 00:05:44 -0700 (Mon, 03 Mar 2003) $
48   */
49  public class XPathLocation implements Location, java.io.Serializable {
50  
51    /** <code>serialVersionUID</code> TODO Write field description. */
52    private static final long serialVersionUID = 1L;
53  
54    /** Our XPath, built up one String at a time. */
55    private final Vector<String> _path = new Vector<>();
56  
57    /** If we have reached the logical end of XPath (i.e., an attribute), set to false. */
58    private boolean _allowChildrenOrAtts = true;
59  
60    /**
61     * Creates a default XPathLocation.
62     */
63    public XPathLocation() {
64      super();
65    }
66  
67    /**
68     * Adds an attribute to the XPath location.
69     * 
70     * @param name the name of the attribute
71     */
72    public void addAttribute(final String name) {
73      if (_allowChildrenOrAtts) {
74        _allowChildrenOrAtts = false;
75        _path.add("@" + name);
76      }
77    }
78  
79    /**
80     * Adds the given element name as a child of the current path.
81     * 
82     * @param name the name to add as a child
83     */
84    public void addChild(final String name) {
85      if (_allowChildrenOrAtts) {
86        _path.add(name);
87      }
88    }
89  
90    /**
91     * Adds the name as a parent of the current path.
92     * 
93     * @param name the name to add as a parent
94     */
95    public void addParent(final String name) {
96      _path.insertElementAt(name, 0);
97    }
98  
99    /**
100    * Returns the String representation of this XPathLocation.
101    * 
102    * @return the String representation of this XPathLocation.
103    */
104   public String toString() {
105     return "XPATH: /" + StringUtils.join(_path, '/');
106   }
107 
108 }