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1   package org.codehaus.plexus.metadata.merge.support;
2   
3   /*
4    * The MIT License
5    *
6    * Copyright (c) 2006, The Codehaus
7    *
8    * Permission is hereby granted, free of charge, to any person obtaining a copy of
9    * this software and associated documentation files (the "Software"), to deal in
10   * the Software without restriction, including without limitation the rights to
11   * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
12   * of the Software, and to permit persons to whom the Software is furnished to do
13   * so, subject to the following conditions:
14   *
15   * The above copyright notice and this permission notice shall be included in all
16   * copies or substantial portions of the Software.
17   *
18   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
21   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
23   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
24   * SOFTWARE.
25   */
26  
27  import org.jdom2.Element;
28  
29  /**
30   * @author <a href='mailto:rahul.thakur.xdev@gmail.com'>Rahul Thakur</a>
31   */
32  public class ComponentElement extends AbstractMergeableElement {
33      /**
34       * Allowed elements/tags that we can expect under this element.
35       */
36      private final DescriptorTag[] allowedTags = {
37          ROLE,
38          ROLE_HINT,
39          OPTIONAL,
40          IMPLEMENTATION,
41          FIELD_NAME,
42          LIFECYCLE_HANDLER,
43          DESCRIPTION,
44          ISOLATION_REALM,
45          CONFIGURATION,
46          RequirementsElement.TAG
47      };
48  
49      static final DescriptorTag TAG = new DescriptorTag("component", true, ComponentElement.class);
50  
51      static final DescriptorTag ROLE = new DescriptorTag("role");
52  
53      static final DescriptorTag ROLE_HINT = new DescriptorTag("role-hint");
54  
55      static final DescriptorTag OPTIONAL = new DescriptorTag("optional");
56  
57      static final DescriptorTag ISOLATION_REALM = new DescriptorTag("isolated-realm");
58  
59      private static final DescriptorTag DESCRIPTION = new DescriptorTag("description");
60  
61      private static final DescriptorTag CONFIGURATION = new DescriptorTag("configuration");
62  
63      static final DescriptorTag FIELD_NAME = new DescriptorTag("field-name");
64  
65      private static final DescriptorTag IMPLEMENTATION = new DescriptorTag("implementation");
66  
67      private static final DescriptorTag LIFECYCLE_HANDLER = new DescriptorTag("lifecycle-handler", false, null);
68  
69      public ComponentElement(Element element) {
70          super(element);
71      }
72  
73      protected boolean isExpectedElementType(Mergeable me) {
74          return me instanceof ComponentElement;
75      }
76  
77      public DescriptorTag[] getAllowedTags() {
78          return allowedTags;
79      }
80  }