Coverage Report - org.jaxen.javabean.JavaBeanXPath

Classes in this File Line Coverage Branch Coverage Complexity
JavaBeanXPath
62% 
88% 
5.333

 1  
 /*
 2  
  * $Header: /home/projects/jaxen/scm/jaxen/src/java/main/org/jaxen/javabean/JavaBeanXPath.java,v 1.4 2005/06/28 13:44:46 elharo Exp $
 3  
  * $Revision: 1.4 $
 4  
  * $Date: 2005/06/28 13:44:46 $
 5  
  *
 6  
  * ====================================================================
 7  
  *
 8  
  * Copyright (C) 2000-2002 bob mcwhirter & James Strachan.
 9  
  * All rights reserved.
 10  
  *
 11  
  * Redistribution and use in source and binary forms, with or without
 12  
  * modification, are permitted provided that the following conditions
 13  
  * are met:
 14  
  * 
 15  
  * 1. Redistributions of source code must retain the above copyright
 16  
  *    notice, this list of conditions, and the following disclaimer.
 17  
  *
 18  
  * 2. Redistributions in binary form must reproduce the above copyright
 19  
  *    notice, this list of conditions, and the disclaimer that follows 
 20  
  *    these conditions in the documentation and/or other materials 
 21  
  *    provided with the distribution.
 22  
  *
 23  
  * 3. The name "Jaxen" must not be used to endorse or promote products
 24  
  *    derived from this software without prior written permission.  For
 25  
  *    written permission, please contact license@jaxen.org.
 26  
  * 
 27  
  * 4. Products derived from this software may not be called "Jaxen", nor
 28  
  *    may "Jaxen" appear in their name, without prior written permission
 29  
  *    from the Jaxen Project Management (pm@jaxen.org).
 30  
  * 
 31  
  * In addition, we request (but do not require) that you include in the 
 32  
  * end-user documentation provided with the redistribution and/or in the 
 33  
  * software itself an acknowledgement equivalent to the following:
 34  
  *     "This product includes software developed by the
 35  
  *      Jaxen Project <http://www.jaxen.org/>."
 36  
  * Alternatively, the acknowledgment may be graphical using the logos 
 37  
  * available at http://www.jaxen.org/
 38  
  *
 39  
  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 40  
  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 41  
  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 42  
  * DISCLAIMED.  IN NO EVENT SHALL THE Jaxen AUTHORS OR THE PROJECT
 43  
  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 44  
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 45  
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 46  
  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 47  
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 48  
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 49  
  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 50  
  * SUCH DAMAGE.
 51  
  *
 52  
  * ====================================================================
 53  
  * This software consists of voluntary contributions made by many 
 54  
  * individuals on behalf of the Jaxen Project and was originally 
 55  
  * created by bob mcwhirter <bob@werken.com> and 
 56  
  * James Strachan <jstrachan@apache.org>.  For more information on the 
 57  
  * Jaxen Project, please see <http://www.jaxen.org/>.
 58  
  * 
 59  
  * $Id: JavaBeanXPath.java,v 1.4 2005/06/28 13:44:46 elharo Exp $
 60  
  */
 61  
 
 62  
 package org.jaxen.javabean;
 63  
 
 64  
 import org.jaxen.Context;
 65  
 import org.jaxen.BaseXPath;
 66  
 import org.jaxen.JaxenException;
 67  
 
 68  
 import java.util.List;
 69  
 import java.util.ArrayList;
 70  
 import java.util.Collection;
 71  
 import java.util.Iterator;
 72  
 
 73  
 /** An XPath implementation for JavaBeans.
 74  
  *
 75  
  * <p>This is the main entry point for matching an XPath against a JavaBean
 76  
  * tree.  You create a compiled XPath object, then match it against
 77  
  * one or more context nodes using the {@link #selectNodes(Object)}
 78  
  * method, as in the following example:</p>
 79  
  *
 80  
  * <pre>
 81  
  * Node node = ...;
 82  
  * XPath path = new JavaBeanXPath("a/b/c");
 83  
  * List results = path.selectNodes(node);
 84  
  * </pre>
 85  
  *
 86  
  * @see BaseXPath
 87  
  *
 88  
  * @author <a href="mailto:bob@werken.com">bob mcwhirter</a>
 89  
  *
 90  
  * @version $Revision: 1.4 $
 91  
  */
 92  
 public class JavaBeanXPath extends BaseXPath
 93  
 {
 94  
     /** Construct given an XPath expression string.
 95  
      *
 96  
      *  @param xpathExpr The XPath expression.
 97  
      *
 98  
      *  @throws JaxenException if there is a syntax error while
 99  
      *          parsing the expression
 100  
      */
 101  
     public JavaBeanXPath(String xpathExpr) throws JaxenException
 102  
     {
 103  6
         super( xpathExpr, DocumentNavigator.getInstance() );
 104  6
     }
 105  
 
 106  
     protected Context getContext(Object node)
 107  
     {
 108  6
         if ( node instanceof Context )
 109  
         {
 110  0
             return (Context) node;
 111  
         }
 112  
 
 113  6
         if ( node instanceof Element )
 114  
         {
 115  0
             return super.getContext( node );
 116  
         }
 117  
 
 118  6
         if ( node instanceof List )
 119  
         {
 120  0
             List newList = new ArrayList();
 121  
 
 122  0
             for ( Iterator listIter = ((List)node).iterator();
 123  0
                   listIter.hasNext(); )
 124  
             {
 125  0
                 newList.add( new Element( null, "root", listIter.next() ) );
 126  
             }
 127  
 
 128  0
             return super.getContext( newList );
 129  
         }
 130  
 
 131  6
         return super.getContext( new Element( null, "root", node ) );
 132  
     }
 133  
 
 134  
     public Object evaluate(Object node)
 135  
         throws JaxenException
 136  
     {
 137  6
         Object result = super.evaluate( node );
 138  
 
 139  6
         if ( result instanceof Element )
 140  
         {
 141  0
             return ((Element)result).getObject();
 142  
         }
 143  6
         else if ( result instanceof Collection )
 144  
         {
 145  6
             List newList = new ArrayList();
 146  
 
 147  6
             for ( Iterator listIter = ((Collection)result).iterator();
 148  24
                   listIter.hasNext(); )
 149  
             {
 150  18
                 Object member = listIter.next();
 151  
 
 152  18
                 if ( member instanceof Element )
 153  
                 {
 154  18
                     newList.add( ((Element)member).getObject() );
 155  
                 }
 156  
                 else
 157  
                 {
 158  0
                     newList.add( member );
 159  
                 }
 160  
             }
 161  
 
 162  6
             return newList;
 163  
         }
 164  
 
 165  0
         return result;
 166  
     }
 167  
 }