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.io.UnsupportedEncodingException; 25 26 27 /** 28 * The Dynamic Host Configuration Protocol (DHCP) provides a framework for 29 * passing configuration information to hosts on a TCP/IP network. Configuration 30 * parameters and other control information are carried in tagged data items 31 * that are stored in the 'options' field of the DHCP message. The data items 32 * themselves are also called "options." 33 * 34 * This abstract base class is for options 35 * that carry a string. 36 * 37 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 38 * @version $Rev: 551805 $, $Date: 2007-06-29 00:57:04 -0500 (Fr, 29 Jun 2007) $ 39 */ 40 public abstract class StringOption extends DhcpOption 41 { 42 private String string; 43 44 45 /* 46 * @see org.apache.directory.server.dhcp.options.DhcpOption#setData(byte[]) 47 */ 48 public void setData( byte[] data ) 49 { 50 try 51 { 52 string = new String( data, "ASCII" ); 53 } 54 catch ( UnsupportedEncodingException e ) 55 { 56 // should not happen 57 throw new RuntimeException( "ASCII encoding unavailable" ); 58 } 59 } 60 61 62 /* 63 * @see org.apache.directory.server.dhcp.options.DhcpOption#getData() 64 */ 65 public byte[] getData() 66 { 67 if ( null == string ) 68 return new byte[] 69 {}; 70 71 try 72 { 73 return string.getBytes( "ASCII" ); 74 } 75 catch ( UnsupportedEncodingException e ) 76 { 77 // should not happen 78 throw new RuntimeException( "ASCII encoding unavailable" ); 79 } 80 } 81 82 83 public String getString() 84 { 85 return string; 86 } 87 88 89 public void setString( String string ) 90 { 91 this.string = string; 92 } 93 }