Coverage Report - org.mule.config.PreferredObjectSelector
 
Classes in this File Line Coverage Branch Coverage Complexity
PreferredObjectSelector
0%
0/12
0%
0/6
0
PreferredObjectSelector$1
0%
0/5
N/A
0
 
 1  
 /*
 2  
  * Copyright (c) MuleSoft, Inc.  All rights reserved.  http://www.mulesoft.com
 3  
  * The software in this package is published under the terms of the CPAL v1.0
 4  
  * license, a copy of which has been included with this distribution in the
 5  
  * LICENSE.txt file.
 6  
  */
 7  
 package org.mule.config;
 8  
 
 9  
 import java.util.Comparator;
 10  
 import java.util.Iterator;
 11  
 
 12  
 /**
 13  
  * Selects a preferred object from a collection of instances of the same type
 14  
  * based on the weight of the {@link Preferred} annotation. If there is no
 15  
  * preferred instances, then it just returns the first object in the collection.
 16  
  */
 17  
 public class PreferredObjectSelector<T>
 18  
 {
 19  
 
 20  
     private final Comparator<T> comparator;
 21  
 
 22  
     public PreferredObjectSelector()
 23  0
     {
 24  0
         comparator = new Comparator<T>()
 25  0
         {
 26  0
             private PreferredComparator preferredComparator = new PreferredComparator();
 27  
 
 28  
             public int compare(T threadPoolFactory, T threadPoolFactory1)
 29  
             {
 30  0
                 final Preferred preferred = threadPoolFactory.getClass().getAnnotation(Preferred.class);
 31  0
                 final Preferred preferred1 = threadPoolFactory1.getClass().getAnnotation(Preferred.class);
 32  
 
 33  0
                 return preferredComparator.compare(preferred, preferred1);
 34  
             }
 35  
         };
 36  0
     }
 37  
 
 38  
     /**
 39  
      * Selects a preferred object from instances returned by an {@link Iterator}.
 40  
      * <p/>
 41  
      * The preferred instance will be the instance annotated with {@link Preferred}
 42  
      * annotation with the highest weight attribute if there is any, or a non
 43  
      * annotated class otherwise.
 44  
      *
 45  
      * @param iterator contains the objects to select from
 46  
      * @return the preferred instance
 47  
      */
 48  
     public T select(Iterator<T> iterator)
 49  
     {
 50  0
         T preferred = null;
 51  
 
 52  0
         if (iterator.hasNext())
 53  
         {
 54  0
             preferred = iterator.next();
 55  
 
 56  0
             while (iterator.hasNext())
 57  
             {
 58  0
                 T current = iterator.next();
 59  
 
 60  0
                 if (comparator.compare(preferred, current) == -1)
 61  
                 {
 62  0
                     preferred = current;
 63  
                 }
 64  0
             }
 65  
         }
 66  
 
 67  0
         return preferred;
 68  
     }
 69  
 }