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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   */
20  package org.apache.mina.integration.beans;
21  
22  import java.beans.PropertyEditor;
23  import java.beans.PropertyEditorSupport;
24  
25  /**
26   * An abstract bi-directional {@link PropertyEditor}.
27   * 
28   * @author The Apache MINA Project (dev@mina.apache.org)
29   * @version $Rev: 601229 $, $Date: 2007-12-05 08:13:18 +0100 (mer, 05 déc 2007) $
30   */
31  public abstract class AbstractPropertyEditor extends PropertyEditorSupport {
32  
33      private String text;
34      private Object value;
35      private boolean trimText = true;
36      
37      protected void setTrimText(boolean trimText) {
38          this.trimText = trimText;
39      }
40  
41      @Override
42      public String getAsText() {
43          return text;
44      }
45  
46      @Override
47      public Object getValue() {
48          return value;
49      }
50  
51      @Override
52      public void setAsText(String text) throws IllegalArgumentException {
53          this.text = text;
54          if (text == null) {
55              value = defaultValue();
56          } else {
57              value = toValue(trimText? text.trim() : text);
58          }
59      }
60  
61      @Override
62      public void setValue(Object value) {
63          this.value = value;
64          if (value == null) {
65              text = defaultText();
66          } else {
67              text = toText(value);
68          }
69      }
70      
71      protected String defaultText() {
72          return null;
73      }
74      
75      protected Object defaultValue() {
76          return null;
77      }
78  
79      protected abstract String toText(Object value);
80      protected abstract Object toValue(String text) throws IllegalArgumentException;
81      
82  }