/*
* Conditions Of Use
*
* This software was developed by employees of the National Institute of
* Standards and Technology (NIST), an agency of the Federal Government.
* Pursuant to title 15 Untied States Code Section 105, works of NIST
* employees are not subject to copyright protection in the United States
* and are considered to be in the public domain. As a result, a formal
* license is not needed to use the software.
*
* This software is provided by NIST as a service and is expressly
* provided "AS IS." NIST MAKES NO WARRANTY OF ANY KIND, EXPRESS, IMPLIED
* OR STATUTORY, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTY OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT
* AND DATA ACCURACY. NIST does not warrant or make any representations
* regarding the use of the software or the results thereof, including but
* not limited to the correctness, accuracy, reliability or usefulness of
* the software.
*
* Permission to use this software is contingent upon your acceptance
* of the terms of this agreement
*
* .
*
*/
/*******************************************************************************
* Product of NIST/ITL Advanced Networking Technologies Division (ANTD). *
*******************************************************************************/
package gov.nist.javax.sip.header;
import java.text.ParseException;
import javax.sip.header.*;
/**
* Supported SIP Header.
*
* @version 1.2 $Revision: 1.5 $ $Date: 2009/07/17 18:57:39 $
*
* @author M. Ranganathan
* @author Olivier Deruelle
*
*
*
*/
public class Subject extends SIPHeader implements SubjectHeader {
/**
* Comment for serialVersionUID
*/
private static final long serialVersionUID = -6479220126758862528L;
/** subject field
*/
protected String subject;
/** Default Constructor.
*/
public Subject() {
super(SUBJECT);
}
/**
* Generate the canonical form.
* @return String.
*/
public String encodeBody() {
if (subject != null) {
return subject;
} else {
return "";
}
}
/**
* Sets the subject value of the SubjectHeader to the supplied string
* subject value.
*
* @param subject - the new subject value of this header
* @throws ParseException which signals that an error has been reached
* unexpectedly while parsing the subject value.
*/
public void setSubject(String subject) throws ParseException {
if (subject == null)
throw new NullPointerException(
"JAIN-SIP Exception, "
+ " Subject, setSubject(), the subject parameter is null");
this.subject = subject;
}
/**
* Gets the subject value of SubjectHeader
*
* @return subject of SubjectHeader
*/
public String getSubject() {
return subject;
}
}
/*
* $Log: Subject.java,v $
* Revision 1.5 2009/07/17 18:57:39 emcho
* Converts indentation tabs to spaces so that we have a uniform indentation policy in the whole project.
*
* Revision 1.4 2006/07/13 09:01:21 mranga
* Issue number:
* Obtained from:
* Submitted by: jeroen van bemmel
* Reviewed by: mranga
* Moved some changes from jain-sip-1.2 to java.net
*
* CVS: ----------------------------------------------------------------------
* CVS: Issue number:
* CVS: If this change addresses one or more issues,
* CVS: then enter the issue number(s) here.
* CVS: Obtained from:
* CVS: If this change has been taken from another system,
* CVS: then name the system in this line, otherwise delete it.
* CVS: Submitted by:
* CVS: If this code has been contributed to the project by someone else; i.e.,
* CVS: they sent us a patch or a set of diffs, then include their name/email
* CVS: address here. If this is your work then delete this line.
* CVS: Reviewed by:
* CVS: If we are doing pre-commit code reviews and someone else has
* CVS: reviewed your changes, include their name(s) here.
* CVS: If you have not had it reviewed then delete this line.
*
* Revision 1.3 2006/06/19 06:47:27 mranga
* javadoc fixups
*
* Revision 1.2 2006/06/16 15:26:28 mranga
* Added NIST disclaimer to all public domain files. Clean up some javadoc. Fixed a leak
*
* Revision 1.1.1.1 2005/10/04 17:12:35 mranga
*
* Import
*
*
* Revision 1.2 2004/01/22 13:26:29 sverker
* Issue number:
* Obtained from:
* Submitted by: sverker
* Reviewed by: mranga
*
* Major reformat of code to conform with style guide. Resolved compiler and javadoc warnings. Added CVS tags.
*
* CVS: ----------------------------------------------------------------------
* CVS: Issue number:
* CVS: If this change addresses one or more issues,
* CVS: then enter the issue number(s) here.
* CVS: Obtained from:
* CVS: If this change has been taken from another system,
* CVS: then name the system in this line, otherwise delete it.
* CVS: Submitted by:
* CVS: If this code has been contributed to the project by someone else; i.e.,
* CVS: they sent us a patch or a set of diffs, then include their name/email
* CVS: address here. If this is your work then delete this line.
* CVS: Reviewed by:
* CVS: If we are doing pre-commit code reviews and someone else has
* CVS: reviewed your changes, include their name(s) here.
* CVS: If you have not had it reviewed then delete this line.
*
*/