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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.net.InetAddress;
24  import java.net.UnknownHostException;
25  
26  /**
27   * A {@link PropertyEditor} which converts a {@link String} into an
28   * {@link InetAddress}.
29   * This editor simply calls {@link InetAddress#getByName(java.lang.String)}
30   * when converting from a {@link String}, and {@link InetAddress#getHostAddress()}
31   * when converting to a {@link String}.
32   *
33   * @author <a href="http://mina.apache.org">Apache MINA Project</a>
34   *
35   * @see java.net.InetAddress
36   */
37  public class InetAddressEditor extends AbstractPropertyEditor {
38      @Override
39      protected String toText(Object value) {
40          String hostname = ((InetAddress) value).getHostAddress();
41          if (hostname.equals("0:0:0:0:0:0:0:0") || hostname.equals("0.0.0.0")
42                  || hostname.equals("00:00:00:00:00:00:00:00")) {
43              hostname = "*";
44          }
45          return hostname;
46      }
47  
48      @Override
49      protected Object toValue(String text) throws IllegalArgumentException {
50          if (text.length() == 0 || text.equals("*")) {
51              return defaultValue();
52          }
53  
54          try {
55              return InetAddress.getByName(text);
56          } catch (UnknownHostException uhe) {
57              IllegalArgumentException iae = new IllegalArgumentException();
58              iae.initCause(uhe);
59              throw iae;
60          }
61      }
62  
63      @Override
64      protected String defaultText() {
65          return "*";
66      }
67  
68      @Override
69      protected Object defaultValue() {
70          try {
71              return InetAddress.getByName("0.0.0.0");
72          } catch (UnknownHostException e) {
73              throw new InternalError();
74          }
75      }
76  }