Coverage Report - org.apache.camel.util.CollectionHelper
 
Classes in this File Line Coverage Branch Coverage Complexity
CollectionHelper
0% 
0% 
2
 
 1  
 /**
 2  
  * Licensed to the Apache Software Foundation (ASF) under one or more
 3  
  * contributor license agreements.  See the NOTICE file distributed with
 4  
  * this work for additional information regarding copyright ownership.
 5  
  * The ASF licenses this file to You under the Apache License, Version 2.0
 6  
  * (the "License"); you may not use this file except in compliance with
 7  
  * the License.  You may obtain a copy of the License at
 8  
  *
 9  
  *      http://www.apache.org/licenses/LICENSE-2.0
 10  
  *
 11  
  * Unless required by applicable law or agreed to in writing, software
 12  
  * distributed under the License is distributed on an "AS IS" BASIS,
 13  
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 14  
  * See the License for the specific language governing permissions and
 15  
  * limitations under the License.
 16  
  */
 17  
 package org.apache.camel.util;
 18  
 
 19  
 import java.util.ArrayList;
 20  
 import java.util.List;
 21  
 import java.util.Map;
 22  
 
 23  
 /**
 24  
  * A number of helper methods for working with collections
 25  
  * 
 26  
  * @version $Revision: 1.1 $
 27  
  */
 28  
 public class CollectionHelper {
 29  
     
 30  
     /**
 31  
      * Utility classes should not have a public constructor.
 32  
      */
 33  0
     private CollectionHelper() {        
 34  0
     }
 35  
     
 36  
     /**
 37  
      * Sets the value of the entry in the map for the given key, though if the
 38  
      * map already contains a value for the given key then the value is appended
 39  
      * to a list of values.
 40  
      * 
 41  
      * @param map the map to add the entry to
 42  
      * @param key the key in the map
 43  
      * @param value the value to put in the map
 44  
      */
 45  
     public static void appendValue(Map map, Object key, Object value) {
 46  
 
 47  0
         Object oldValue = map.get(key);
 48  0
         if (oldValue != null) {
 49  
             List list;
 50  0
             if (oldValue instanceof List) {
 51  0
                 list = (List)oldValue;
 52  0
             } else {
 53  0
                 list = new ArrayList();
 54  0
                 list.add(oldValue);
 55  
             }
 56  0
             list.add(value);
 57  0
         } else {
 58  0
             map.put(key, value);
 59  
         }
 60  0
     }
 61  
 }