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1   /*
2    * Copyright 2004-2008 the Seasar Foundation and the Others.
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    *     http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, 
13   * either express or implied. See the License for the specific language
14   * governing permissions and limitations under the License.
15   */
16  package org.seasar.uruma.rcp.configuration.elements;
17  
18  import java.io.Writer;
19  import java.util.ArrayList;
20  import java.util.Collections;
21  import java.util.List;
22  
23  import org.seasar.uruma.rcp.configuration.ConfigurationElement;
24  import org.seasar.uruma.rcp.configuration.ConfigurationElementContainer;
25  
26  /**
27   * {@link ConfigurationElementContainer} のための基底クラスです。<br />
28   * 
29   * @author y-komori
30   */
31  public abstract class AbstractConfigurationElementContainer extends
32          AbstractConfigurationElement implements ConfigurationElementContainer {
33  
34      private List<ConfigurationElement> children = new ArrayList<ConfigurationElement>();
35  
36      /*
37       * @see org.seasar.uruma.rcp.configuration.ConfigurationElementContainer#addElement(org.seasar.uruma.rcp.configuration.ConfigurationElement)
38       */
39      public void addElement(final ConfigurationElement element) {
40          children.add(element);
41      }
42  
43      /*
44       * @see org.seasar.uruma.rcp.configuration.ConfigurationElementContainer#getElements()
45       */
46      public List<ConfigurationElement> getElements() {
47          return Collections.unmodifiableList(children);
48      }
49  
50      /*
51       * @see org.seasar.uruma.rcp.configuration.elements.AbstractConfigurationElement#writeConfiguration(java.io.Writer)
52       */
53      @Override
54      public void writeConfiguration(final Writer writer) {
55          if (configurationWriter != null) {
56              configurationWriter.writeStartTag(this, writer, level);
57          }
58  
59          for (ConfigurationElement element : children) {
60              element.setLevel(level + 1);
61              element.writeConfiguration(writer);
62          }
63  
64          if (configurationWriter != null) {
65              configurationWriter.writeEndTag(this, writer, level);
66          }
67      }
68  }