1/* 2* Conditions Of Use 3* 4* This software was developed by employees of the National Institute of 5* Standards and Technology (NIST), an agency of the Federal Government. 6* Pursuant to title 15 Untied States Code Section 105, works of NIST 7* employees are not subject to copyright protection in the United States 8* and are considered to be in the public domain. As a result, a formal 9* license is not needed to use the software. 10* 11* This software is provided by NIST as a service and is expressly 12* provided "AS IS." NIST MAKES NO WARRANTY OF ANY KIND, EXPRESS, IMPLIED 13* OR STATUTORY, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTY OF 14* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT 15* AND DATA ACCURACY. NIST does not warrant or make any representations 16* regarding the use of the software or the results thereof, including but 17* not limited to the correctness, accuracy, reliability or usefulness of 18* the software. 19* 20* Permission to use this software is contingent upon your acceptance 21* of the terms of this agreement 22* 23* . 24* 25*/ 26/******************************************************************************* 27* Product of NIST/ITL Advanced Networking Technologies Division (ANTD). * 28*******************************************************************************/ 29package gov.nist.javax.sip.header; 30 31import javax.sip.*; 32 33/** 34 * Expires SIP Header. 35 * 36 * @version 1.2 $Revision: 1.6 $ $Date: 2009/07/17 18:57:30 $ 37 * @since 1.1 38 * 39 * @author M. Ranganathan <br/> 40 * 41 * 42 */ 43public class Expires 44 extends SIPHeader 45 implements javax.sip.header.ExpiresHeader { 46 47 /** 48 * Comment for <code>serialVersionUID</code> 49 */ 50 private static final long serialVersionUID = 3134344915465784267L; 51 52 /** expires field 53 */ 54 protected int expires; 55 56 /** default constructor 57 */ 58 public Expires() { 59 super(NAME); 60 } 61 62 /** 63 * Return canonical form. 64 * @return String 65 */ 66 public String encodeBody() { 67 return encodeBody(new StringBuffer()).toString(); 68 } 69 70 protected StringBuffer encodeBody(StringBuffer buffer) { 71 return buffer.append(expires); 72 } 73 74 /** 75 * Gets the expires value of the ExpiresHeader. This expires value is 76 * 77 * relative time. 78 * 79 * 80 * 81 * @return the expires value of the ExpiresHeader. 82 * 83 * 84 */ 85 public int getExpires() { 86 return expires; 87 } 88 89 /** 90 * Sets the relative expires value of the ExpiresHeader. 91 * The expires value MUST be greater than zero and MUST be 92 * less than 2**31. 93 * 94 * @param expires - the new expires value of this ExpiresHeader 95 * 96 * @throws InvalidArgumentException if supplied value is less than zero. 97 * 98 * 99 */ 100 public void setExpires(int expires) throws InvalidArgumentException { 101 if (expires < 0) 102 throw new InvalidArgumentException("bad argument " + expires); 103 this.expires = expires; 104 } 105} 106