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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  
21  package org.apache.directory.server.dhcp.options;
22  
23  
24  import java.net.InetAddress;
25  import java.net.UnknownHostException;
26  
27  
28  /**
29   * The Dynamic Host Configuration Protocol (DHCP) provides a framework
30   * for passing configuration information to hosts on a TCP/IP network.  
31   * Configuration parameters and other control information are carried in
32   * tagged data items that are stored in the 'options' field of the DHCP
33   * message.  The data items themselves are also called "options."
34   *
35   * This abstract base class is for options that carry a single IP address.
36   *
37   * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
38   * @version $Rev: 638228 $, $Date: 2008-03-18 07:12:41 +0100 (Di, 18 Mär 2008) $
39   */
40  public abstract class AddressOption extends DhcpOption
41  {
42      private InetAddress address;
43  
44  
45      /*
46       * @see org.apache.directory.server.dhcp.options.DhcpOption#getData()
47       */
48      public byte[] getData()
49      {
50          return address.getAddress();
51      }
52  
53  
54      /*
55       * @see org.apache.directory.server.dhcp.options.DhcpOption#setData(byte[])
56       */
57      public void setData( byte[] data )
58      {
59          try
60          {
61              address = InetAddress.getByAddress( data );
62          }
63          catch ( UnknownHostException e )
64          {
65              throw new IllegalArgumentException( "illegal address", e );
66          }
67      }
68  
69  
70      public InetAddress getAddress()
71      {
72          return address;
73      }
74  
75  
76      public void setAddress( InetAddress address )
77      {
78          this.address = address;
79      }
80  }