1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with this
4 * work for additional information regarding copyright ownership. The ASF
5 * licenses this file to you under the Apache License, Version 2.0 (the
6 * "License"); you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
13 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
14 * License for the specific language governing permissions and limitations under
15 * the License.
16 *
17 */
18
19 package org.apache.directory.server.dhcp.options;
20
21 /**
22 * The Dynamic Host Configuration Protocol (DHCP) provides a framework for
23 * passing configuration information to hosts on a TCP/IP network. Configuration
24 * parameters and other control information are carried in tagged data items
25 * that are stored in the 'options' field of the DHCP message. The data items
26 * themselves are also called "options."
27 *
28 * This abstract base class is for options that carry a short value (16 bit).
29 *
30 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
31 * @version $Rev: 551805 $, $Date: 2007-06-29 00:57:04 -0500 (Fr, 29 Jun 2007) $
32 */
33 public abstract class IntOption extends DhcpOption {
34 /**
35 * The int value (represented as a long because of the unsignedness).
36 */
37 private long intValue;
38
39 /*
40 * @see org.apache.directory.server.dhcp.options.DhcpOption#setData(byte[])
41 */
42 public void setData(byte[] data) {
43 intValue = (data[0] & 0xff) << 24 | (data[1] & 0xff) << 16
44 | (data[2] & 0xff) << 8 | (data[3] & 0xff);
45 }
46
47 /*
48 * @see org.apache.directory.server.dhcp.options.DhcpOption#getData()
49 */
50 public byte[] getData() {
51 return new byte[]{(byte) (intValue >> 24 & 0xff),
52 (byte) (intValue >> 16 & 0xff), (byte) (intValue >> 8 & 0xff),
53 (byte) (intValue & 0xff)};
54 }
55
56 public long getIntValue() {
57 return intValue;
58 }
59
60 public void setIntValue(long intValue) {
61 this.intValue = intValue;
62 }
63 }