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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.apache.myfaces.trinidad.skin;
20  
21  
22  /**
23   * The skin version works tightly with the skin family.
24   * This allows someone to create versions of their skin, like purple (no version),
25   * purple version v2, purple version v3.
26   * Then the user can say which skin version they want, like:
27   * <skin-family>purple</skin-family><skin-version>v3</skin-version> when they
28   * pick a skin in trinidad-config.xml.
29   * When creating a skin, you give it a version if you care about versioning.
30   */
31  final public class SkinVersion
32  {
33    /**
34     * Constructor that takes a version name.
35     *
36     * @param name the name of the version, like "v1". If name is "default" then we set default as
37     *             true and name to null. If name is null, it is converted to "".
38     */
39    public SkinVersion(String name)
40    {
41      this(_DEFAULT.equalsIgnoreCase(name) ? null : name,
42           _DEFAULT.equalsIgnoreCase(name) ? true : false);
43    }
44  
45    /**
46     * Constructor that takes a name and a defaultVersion.
47     *
48     * @param name           the name of the version, like "v1". If name is null, it is converted to
49     *                       "".
50     * @param defaultVersion true if this skin is the default version for all skins with the same skin
51     *                       family
52     */
53    public SkinVersion(
54      String  name,
55      boolean defaultVersion)
56    {
57      if (name == null)
58        name = "";
59  
60      _default = defaultVersion;
61      _name = name;
62    }
63  
64    public boolean isDefault()
65    {
66      return _default;
67    }
68  
69    public String getName()
70    {
71      return _name;
72    }
73  
74    @Override
75    final public boolean equals(Object o)
76    {
77      if (o == this)
78        return true;
79      if (!(o instanceof SkinVersion))
80      {
81        return false;
82      }
83      SkinVersion test = (SkinVersion) o;
84      return (test.isDefault() == this.isDefault()) &&
85               (test.getName().equals(this.getName()));
86    }
87  
88    @Override
89    final public int hashCode()
90    {
91      int hash = 17;
92      hash = 37 * hash + this.getName().hashCode();
93      hash = 37 * hash + ((this.isDefault()) ? 1231 : 1237);
94  
95      return hash;
96    }
97  
98    @Override
99    public String toString()
100   {
101     if (isDefault())
102       return _DEFAULT;
103 
104     return getName();
105   }
106 
107   private final boolean _default;
108   private final String  _name;
109 
110   // If the skin doesn't explicitly have a version, then it will return EMPTY_SKIN_VERSION
111   // when skin.getVersion is called. This makes our skin picking code cleaner.
112   public static final  SkinVersion EMPTY_SKIN_VERSION = new SkinVersion("");
113   private static final String      _DEFAULT           = "default";
114 }