Coverage Report - org.jaxen.SimpleVariableContext

Classes in this File Line Coverage Branch Coverage Complexity
SimpleVariableContext
100% 
100% 
1.75

 1  
 /*
 2  
  * $Header: /home/projects/jaxen/scm/jaxen/src/java/main/org/jaxen/SimpleVariableContext.java,v 1.16 2005/09/25 11:39:21 elharo Exp $
 3  
  * $Revision: 1.16 $
 4  
  * $Date: 2005/09/25 11:39:21 $
 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: SimpleVariableContext.java,v 1.16 2005/09/25 11:39:21 elharo Exp $
 60  
  */
 61  
 
 62  
 
 63  
 package org.jaxen;
 64  
 
 65  
 import java.io.Serializable;
 66  
 import java.util.HashMap;
 67  
 import java.util.Map;
 68  
 
 69  
 /** Simple default implementation for <code>VariableContext</code>.
 70  
  *
 71  
  *  <p>
 72  
  *  This is a simple table-based key-lookup implementation
 73  
  *  for <code>VariableContext</code> which can be programmatically
 74  
  *  extended by setting additional variables.
 75  
  *  </p>
 76  
  *
 77  
  *  @author <a href="mailto:bob@werken.com">bob mcwhirter</a>
 78  
  */
 79  
 public class SimpleVariableContext implements VariableContext, Serializable
 80  
 {
 81  
     /** Table of variable bindings. */
 82  
     private Map variables;
 83  
 
 84  
     /** Construct.
 85  
      *
 86  
      *  <p>
 87  
      *  Create a new empty variable context.
 88  
      *  </p>
 89  
      */
 90  
     public SimpleVariableContext()
 91  4920
     {
 92  4920
         variables = new HashMap();
 93  4920
     }
 94  
 
 95  
     /** Set the value associated with a variable.
 96  
      *
 97  
      *  <p>
 98  
      *  This method sets a variable that is 
 99  
      *  associated with a particular namespace.
 100  
      *  These variables appear such as <code>$prefix:foo</code>
 101  
      *  in an XPath expression.  Prefix to URI resolution
 102  
      *  is the responsibility of a <code>NamespaceContext</code>.
 103  
      *  Variables within a <code>VariableContext</code> are
 104  
      *  referred to purely based upon their namespace URI,
 105  
      *  if any.
 106  
      *  </p>
 107  
      *
 108  
      *  @param namespaceURI the namespace URI of the variable
 109  
      *  @param localName the local name of the variable
 110  
      *  @param value The value to be bound to the variable
 111  
      */
 112  
     public void setVariableValue( String namespaceURI,
 113  
                                   String localName,
 114  
                                   Object value )
 115  
     {
 116  48
         this.variables.put( new QualifiedName(namespaceURI, null, localName),
 117  
                             value );
 118  48
     }
 119  
 
 120  
     /** Set the value associated with a variable.
 121  
      *
 122  
      *  <p>
 123  
      *  This method sets a variable that is <strong>not</strong>
 124  
      *  associated with any particular namespace.
 125  
      *  These variables look like <code>$foo</code>
 126  
      *  in an XPath expression.
 127  
      *  </p>
 128  
      *
 129  
      *  @param localName the local name of the variable
 130  
      *  @param value the value to be bound to the variable
 131  
      */
 132  
     public void setVariableValue( String localName,
 133  
                                   Object value )
 134  
     {
 135  6
         this.variables.put( new QualifiedName(null, null, localName), value );
 136  6
     }
 137  
 
 138  
     public Object getVariableValue( String namespaceURI,
 139  
                                     String prefix,
 140  
                                     String localName )
 141  
         throws UnresolvableException
 142  
     {
 143  90
         QualifiedName key = new QualifiedName( namespaceURI, prefix, localName );
 144  
 
 145  90
         if ( this.variables.containsKey(key) )
 146  
         {
 147  78
             return this.variables.get( key );
 148  
         }
 149  
         else
 150  
         {
 151  12
             throw new UnresolvableException( "Variable " + key.getClarkForm() );
 152  
         }
 153  
     }
 154  
 }