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 Wang/** 32600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * A generic extension header for the stack. 33600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * The input text of the header gets recorded here. 34600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * 35600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * @version 1.2 $Revision: 1.5 $ $Date: 2009/07/17 18:57:30 $ 36600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * @since 1.1 37600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * 38600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * @author M. Ranganathan <br/> 39600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * 40600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * 41600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang */ 42600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wangpublic class ExtensionHeaderImpl 43600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang extends SIPHeader 44600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang implements javax.sip.header.ExtensionHeader { 45600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang 46600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang /** 47600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * Comment for <code>serialVersionUID</code> 48600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang */ 49600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang private static final long serialVersionUID = -8693922839612081849L; 50600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang 51600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang protected String value; 52600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang 53600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang /** 54600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * This was added to allow for automatic cloning of headers. 55600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang */ 56600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang public ExtensionHeaderImpl() { 57600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang } 58600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang 59600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang public ExtensionHeaderImpl(String headerName) { 60600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang super(headerName); 61600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang } 62600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang 63600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang /** 64600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * Set the name of the header. 65600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * @param headerName is the name of the header to set. 66600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang */ 67600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang 68600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang public void setName(String headerName) { 69600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang this.headerName = headerName; 70600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang } 71600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang 72600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang /** 73600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * Set the value of the header. 74600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang */ 75600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang public void setValue(String value) { 76600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang this.value = value; 77600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang } 78600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang 79600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang /** 80600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * Get the value of the extension header. 81600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * @return the value of the extension header. 82600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang */ 83600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang public String getHeaderValue() { 84600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang if (this.value != null) { 85600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang return this.value; 86600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang } else { 87600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang String encodedHdr = null; 88600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang try { 89600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang // Bug fix submitted by Lamine Brahimi 90600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang encodedHdr = this.encode(); 91600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang } catch (Exception ex) { 92600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang return null; 93600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang } 94600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang StringBuffer buffer = new StringBuffer(encodedHdr); 95600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang while (buffer.length() > 0 && buffer.charAt(0) != ':') { 96600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang buffer.deleteCharAt(0); 97600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang } 98600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang buffer.deleteCharAt(0); 99600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang this.value = buffer.toString().trim(); 100600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang return this.value; 101600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang } 102600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang } 103600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang 104600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang /** 105600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * Return the canonical encoding of this header. 106600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang */ 107600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang public String encode() { 108600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang return new StringBuffer(this.headerName) 109600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang .append(COLON) 110600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang .append(SP) 111600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang .append(this.value) 112600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang .append(NEWLINE) 113600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang .toString(); 114600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang } 115600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang 116600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang /** 117600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * Return just the body of this header encoded (leaving out the 118600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * name and the CRLF at the end). 119600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang */ 120600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang public String encodeBody() { 121600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang return this.getHeaderValue(); 122600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang } 123600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang} 124