1600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang/* 2600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* Conditions Of Use 3600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* 4600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* This software was developed by employees of the National Institute of 5600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* Standards and Technology (NIST), an agency of the Federal Government. 6600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* Pursuant to title 15 Untied States Code Section 105, works of NIST 7600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* employees are not subject to copyright protection in the United States 8600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* and are considered to be in the public domain. As a result, a formal 9600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* license is not needed to use the software. 10600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* 11600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* This software is provided by NIST as a service and is expressly 12600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* provided "AS IS." NIST MAKES NO WARRANTY OF ANY KIND, EXPRESS, IMPLIED 13600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* OR STATUTORY, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTY OF 14600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT 15600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* AND DATA ACCURACY. NIST does not warrant or make any representations 16600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* regarding the use of the software or the results thereof, including but 17600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* not limited to the correctness, accuracy, reliability or usefulness of 18600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* the software. 19600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* 20600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* Permission to use this software is contingent upon your acceptance 21600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* of the terms of this agreement 22600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* 23600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* . 24600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* 25600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang*/ 26600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang/******************************************************************************* 27600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* Product of NIST/ITL Advanced Networking Technologies Division (ANTD). * 28600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang*******************************************************************************/ 29600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wangpackage gov.nist.javax.sip.header; 30600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang 31600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wangimport javax.sip.*; 32600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang 33600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang/** 34600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * Expires SIP Header. 35600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * 36600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * @version 1.2 $Revision: 1.6 $ $Date: 2009/07/17 18:57:30 $ 37600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * @since 1.1 38600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * 39600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * @author M. Ranganathan <br/> 40600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * 41600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * 42600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang */ 43600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wangpublic class Expires 44600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang extends SIPHeader 45600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang implements javax.sip.header.ExpiresHeader { 46600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang 47600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang /** 48600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * Comment for <code>serialVersionUID</code> 49600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang */ 50600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang private static final long serialVersionUID = 3134344915465784267L; 51600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang 52600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang /** expires field 53600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang */ 54600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang protected int expires; 55600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang 56600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang /** default constructor 57600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang */ 58600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang public Expires() { 59600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang super(NAME); 60600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang } 61600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang 62600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang /** 63600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * Return canonical form. 64600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * @return String 65600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang */ 66600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang public String encodeBody() { 67600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang return encodeBody(new StringBuffer()).toString(); 68600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang } 69600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang 70600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang protected StringBuffer encodeBody(StringBuffer buffer) { 71600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang return buffer.append(expires); 72600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang } 73600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang 74600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang /** 75600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * Gets the expires value of the ExpiresHeader. This expires value is 76600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * 77600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * relative time. 78600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * 79600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * 80600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * 81600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * @return the expires value of the ExpiresHeader. 82600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * 83600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * 84600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang */ 85600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang public int getExpires() { 86600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang return expires; 87600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang } 88600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang 89600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang /** 90600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * Sets the relative expires value of the ExpiresHeader. 91600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * The expires value MUST be greater than zero and MUST be 92600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * less than 2**31. 93600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * 94600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * @param expires - the new expires value of this ExpiresHeader 95600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * 96600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * @throws InvalidArgumentException if supplied value is less than zero. 97600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * 98600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * 99600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang */ 100600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang public void setExpires(int expires) throws InvalidArgumentException { 101600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang if (expires < 0) 102600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang throw new InvalidArgumentException("bad argument " + expires); 103600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang this.expires = expires; 104600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang } 105600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang} 106