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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.jetspeed.om.impl;
18  
19  import java.io.Serializable;
20  import java.util.ArrayList;
21  import java.util.Collection;
22  import java.util.Iterator;
23  import java.util.Locale;
24  
25  import org.apache.jetspeed.om.common.MutableDescriptionSet;
26  import org.apache.jetspeed.util.JetspeedLocale;
27  import org.apache.pluto.om.common.Description;
28  
29  /***
30   * BaseDescriptionSet
31   * 
32   * Supports 
33   * 
34   * @author <a href="mailto:weaver@apache.org">Scott T. Weaver</a>
35   * @version $Id: DescriptionSetImpl.java 516448 2007-03-09 16:25:47Z ate $
36   *
37   */
38  public class DescriptionSetImpl  implements MutableDescriptionSet, Serializable
39  {
40      /*** Specifies the type Description we are storing */
41      protected String descriptionType;
42      protected Collection innerCollection;
43  
44      /***
45       * 
46       */
47      public DescriptionSetImpl()
48      {
49          super();
50  		this.innerCollection = new ArrayList();        
51      }
52  
53      /***
54       * @param c
55       */
56      public DescriptionSetImpl(Collection c)
57      {
58          this.innerCollection = c;  
59      }
60  
61  
62  
63  
64      public DescriptionSetImpl(String descriptionType)
65      {
66          super();
67          this.descriptionType = descriptionType;
68          this.innerCollection = new ArrayList();
69      }
70  
71      /***
72       * @see org.apache.pluto.om.common.DescriptionSet#get(java.util.Locale)
73       */
74      public Description get(Locale arg0)
75      {
76          if (arg0 == null)
77          {
78              throw new IllegalArgumentException("The Locale argument cannot be null");
79          }
80  
81          // TODO: This may cause concurrent modification exceptions
82          Iterator itr = iterator();
83          Description fallBack = null;
84          while (itr.hasNext())
85          {
86              Description desc = (Description) itr.next();
87              if (desc.getLocale().equals(arg0))
88              {
89                  return desc;
90              }
91              // set fall back if we have a Locale that only has
92              // language set.
93              else if (desc.getLocale().getLanguage().equals(arg0.getLanguage()))
94              {
95                  fallBack = desc;
96              }
97              else if (fallBack == null && desc.getLocale().equals(JetspeedLocale.getDefaultLocale()))
98              {
99                  fallBack = desc;
100             }
101         }
102         return fallBack;
103     }
104 
105     /***
106      * @see org.apache.jetspeed.om.common.MutableDescriptionSet#addDescription(java.lang.String)
107      */
108     public void addDescription(Description description)
109     {        
110         innerCollection.add(description);
111     }
112 
113     /***
114      * @see org.apache.pluto.om.common.DescriptionSet#iterator()
115      */
116     public Iterator iterator()
117     {        
118         return innerCollection.iterator();
119     }
120 
121     /***
122      * @return
123      */
124     public Collection getInnerCollection()
125     {
126         return innerCollection;
127     }
128 
129     /***
130      * @param collection
131      */
132     public void setInnerCollection(Collection collection)
133     {
134         innerCollection = collection;
135     }
136 
137 }