Coverage Report - org.jaxen.SimpleNamespaceContext

Classes in this File Line Coverage Branch Coverage Complexity
SimpleNamespaceContext
100% 
100% 
1.8

 1  
 /*
 2  
  * $Header: /home/projects/jaxen/scm/jaxen/src/java/main/org/jaxen/SimpleNamespaceContext.java,v 1.15 2005/06/28 13:44:44 elharo Exp $
 3  
  * $Revision: 1.15 $
 4  
  * $Date: 2005/06/28 13:44:44 $
 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: SimpleNamespaceContext.java,v 1.15 2005/06/28 13:44:44 elharo Exp $
 60  
  */
 61  
 
 62  
 
 63  
 package org.jaxen;
 64  
 
 65  
 import java.io.Serializable;
 66  
 import java.util.HashMap;
 67  
 import java.util.Iterator;
 68  
 import java.util.Map;
 69  
 
 70  
 /**
 71  
  *  Provides mappings from namespace prefix to namespace URI to the XPath
 72  
  *  engine.
 73  
  */
 74  
 public class SimpleNamespaceContext implements NamespaceContext, Serializable
 75  
 {
 76  
     
 77  
     // XXX should this prebind the xml prefix?
 78  
     private Map namespaces;
 79  
 
 80  
     /**
 81  
      * Creates a new empty namespace context.
 82  
      */
 83  
     public SimpleNamespaceContext()
 84  5010
     {
 85  5010
         this.namespaces = new HashMap();
 86  5010
     }
 87  
 
 88  
     /**
 89  
      * Creates a new namespace context pre-populated with the specified bindings. 
 90  
      * 
 91  
      * @param namespaces the initial namespace bindings in scope. The keys in this
 92  
      *     must be strings containing the prefixes and the values are strings
 93  
      *     containing the namespace URIs.
 94  
      *     
 95  
      * @throws NullPointerException if the argument is null   
 96  
      */
 97  
     public SimpleNamespaceContext(Map namespaces)
 98  6
     {
 99  
         // FIXME this is dangerous. We should check that
 100  
         // the contents are strings.
 101  6
         this.namespaces = new HashMap(namespaces);
 102  6
     }
 103  
 
 104  
     /**
 105  
      *  Adds all the namespace declarations that are in scope on the given
 106  
      *  element. In the case of an XSLT stylesheet, this would be the element
 107  
      *  that has the XPath expression in one of its attributes; e.g.
 108  
      *  <code>&lt;xsl:if test="condition/xpath/expression"&gt;</code>.
 109  
      *
 110  
      *  @param nav  the navigator for use in conjunction with
 111  
      *              <code>element</code>
 112  
      *  @param element the element to copy the namespaces from
 113  
      *  @throws UnsupportedAxisException if the navigator does not support the 
 114  
      *     namespace axis
 115  
      */
 116  
     public void addElementNamespaces( Navigator nav, Object element )
 117  
         throws UnsupportedAxisException
 118  
     {
 119  12
         Iterator namespaceAxis = nav.getNamespaceAxisIterator( element );
 120  
 
 121  24
         while ( namespaceAxis.hasNext() ) {
 122  12
             Object namespace = namespaceAxis.next();
 123  12
             String prefix = nav.getNamespacePrefix( namespace );
 124  12
             String uri = nav.getNamespaceStringValue( namespace );
 125  12
             if ( translateNamespacePrefixToUri(prefix) == null ) {
 126  12
                 addNamespace( prefix, uri );
 127  
             }
 128  
         }
 129  12
     }    
 130  
 
 131  
     // ???? What if prefix or URI is null, or both?
 132  
     /**
 133  
      * Binds a prefix to a URI in this context.
 134  
      * 
 135  
      * @param prefix the namespace prefix
 136  
      * @param URI    the namespace URI
 137  
      */
 138  
     public void addNamespace(String prefix, String URI)
 139  
     {
 140  258
         this.namespaces.put( prefix, URI );
 141  258
     }
 142  
 
 143  
     public String translateNamespacePrefixToUri(String prefix)
 144  
     {
 145  13326
         if ( this.namespaces.containsKey( prefix ) )
 146  
         {
 147  636
             return (String) this.namespaces.get( prefix );
 148  
         }
 149  
 
 150  12690
         return null;
 151  
     }
 152  
 }