Coverage report

  %line %branch
org.apache.commons.configuration.ConfigurationMap$ConfigurationSet$Entry
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 1  
 /*
 2  
  * Copyright 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  
 
 17  
 package org.apache.commons.configuration;
 18  
 
 19  
 import java.util.AbstractMap;
 20  
 import java.util.AbstractSet;
 21  
 import java.util.Iterator;
 22  
 import java.util.Map;
 23  
 import java.util.Set;
 24  
 
 25  
 /**
 26  
  * <p>The <code>ConfigurationMap</code> wraps a
 27  
  * configuration-collection
 28  
  * {@link org.apache.commons.configuration.Configuration}
 29  
  * instance to provide a <code>Map</code> interface.</p>
 30  
  *
 31  
  * @todo This implementation is incomplete. 
 32  
  *
 33  
  * @author <a href="mailto:ricardo.gladwell@btinternet.com">Ricardo Gladwell</a>
 34  
  * @version $Revision: 155408 $, $Date: 2005-02-26 13:56:39 +0100 (Sa, 26 Feb 2005) $
 35  
  * @since 1.0
 36  
  */
 37  
 public class ConfigurationMap extends AbstractMap
 38  
 {
 39  
     /**
 40  
      * The <code>Configuration</code> wrapped by this class.
 41  
      */
 42  
     Configuration configuration = null;
 43  
 
 44  
     /**
 45  
      * Creates a new instance of a <code>ConfigurationMap</code>
 46  
      * that wraps the specified <code>Configuration</code>
 47  
      * instance.
 48  
      * @param configuration <code>Configuration</code>
 49  
      * instance.
 50  
      */
 51  
     public ConfigurationMap(Configuration configuration)
 52  
     {
 53  
         this.configuration = configuration;
 54  
     }
 55  
 
 56  
     /**
 57  
      * @see java.util.Map#entrySet()
 58  
      */
 59  
     public Set entrySet()
 60  
     {
 61  
         return new ConfigurationSet(configuration);
 62  
     }
 63  
 
 64  
     /**
 65  
      * @see java.util.Map#put(java.lang.Object, java.lang.Object)
 66  
      */
 67  
     public Object put(Object key, Object value)
 68  
     {
 69  
         String strKey = String.valueOf(key);
 70  
         Object old = configuration.getProperty(strKey);
 71  
         configuration.setProperty(strKey, value);
 72  
         return old;
 73  
     }
 74  
 
 75  
     /**
 76  
      * @see java.util.Map#get(java.lang.Object)
 77  
      */
 78  
     public Object get(Object key)
 79  
     {
 80  
         return configuration.getProperty(String.valueOf(key));
 81  
     }
 82  
 
 83  
     static class ConfigurationSet extends AbstractSet
 84  
     {
 85  
         private Configuration configuration = null;
 86  
 
 87  161
         private class Entry implements Map.Entry
 88  
         {
 89  161
             private Object key = null;
 90  
             
 91  
             private Entry(Object key)
 92  161
             {
 93  161
                 this.key = key;
 94  161
             }
 95  
             
 96  
             public Object getKey()
 97  
             {
 98  1288
                 return key;
 99  
             }
 100  
             
 101  
             public Object getValue()
 102  
             {
 103  161
                 return configuration.getProperty((String) key);
 104  
             }
 105  
 
 106  
             public Object setValue(Object value)
 107  
             {
 108  0
                 Object old = getValue();
 109  0
                 configuration.setProperty((String) key, value);
 110  0
                 return old;
 111  
             }
 112  
 
 113  
         }
 114  
 
 115  
         private class ConfigurationSetIterator implements Iterator
 116  
         {
 117  
             private Iterator keys;
 118  
 
 119  
             private ConfigurationSetIterator()
 120  
             {
 121  
                 keys = configuration.getKeys();
 122  
             }
 123  
 
 124  
             public boolean hasNext()
 125  
             {
 126  
                 return keys.hasNext();
 127  
             }
 128  
 
 129  
             public Object next()
 130  
             {
 131  
                 return new Entry(keys.next());
 132  
             }
 133  
 
 134  
             public void remove()
 135  
             {
 136  
                 keys.remove();
 137  
             }
 138  
 
 139  
         }
 140  
 
 141  
         ConfigurationSet(Configuration configuration)
 142  
         {
 143  
             this.configuration = configuration;
 144  
         }
 145  
 
 146  
         /**
 147  
          * @see java.util.Collection#size()
 148  
          */
 149  
         public int size()
 150  
         {
 151  
             // Ouch. Now _that_ one is expensive...
 152  
             int count = 0;
 153  
             for (Iterator iterator = configuration.getKeys(); iterator.hasNext(); )
 154  
             {
 155  
                 iterator.next();
 156  
                 count++;
 157  
             }
 158  
             return count;
 159  
         }
 160  
 
 161  
         /**
 162  
          * @see java.util.Collection#iterator()
 163  
          */
 164  
         public Iterator iterator()
 165  
         {
 166  
             return new ConfigurationSetIterator();
 167  
         }
 168  
     }
 169  
 }

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