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using System;
using System.Collections.Generic;
using System.Text;
namespace LumiSoft.Net.SIP.Message
{
/// <summary>
/// Implements SIP "RAck" value. Defined in RFC 3262.
/// </summary>
/// <remarks>
/// <code>
/// RFC 3262 Syntax:
/// RAck = response-num LWS CSeq-num LWS Method
/// response-num = 1*DIGIT
/// CSeq-num = 1*DIGIT
/// </code>
/// </remarks>
public class SIP_t_RAck : SIP_t_Value
{
private int m_ResponseNumber = 1;
private int m_CSeqNumber = 1;
private string m_Method = "";
/// <summary>
/// Default constructor.
/// </summary>
/// <param name="value">RAck value.</param>
public SIP_t_RAck(string value)
{
Parse(value);
}
/// <summary>
/// Default constructor.
/// </summary>
/// <param name="responseNo">Response number.</param>
/// <param name="cseqNo">CSeq number.</param>
/// <param name="method">Request method.</param>
public SIP_t_RAck(int responseNo,int cseqNo,string method)
{
this.ResponseNumber = responseNo;
this.CSeqNumber = cseqNo;
this.Method = method;
}
#region method Parse
/// <summary>
/// Parses "RAck" from specified value.
/// </summary>
/// <param name="value">SIP "RAck" value.</param>
/// <exception cref="ArgumentNullException">Raised when <b>value</b> is null.</exception>
/// <exception cref="SIP_ParseException">Raised when invalid SIP message.</exception>
public void Parse(string value)
{
if(value == null){
throw new ArgumentNullException("value");
}
Parse(new StringReader(value));
}
/// <summary>
/// Parses "RAck" from specified reader.
/// </summary>
/// <param name="reader">Reader from where to parse.</param>
/// <exception cref="ArgumentNullException">Raised when <b>reader</b> is null.</exception>
/// <exception cref="SIP_ParseException">Raised when invalid SIP message.</exception>
public override void Parse(StringReader reader)
{
/*
RAck = response-num LWS CSeq-num LWS Method
response-num = 1*DIGIT
CSeq-num = 1*DIGIT
*/
if(reader == null){
throw new ArgumentNullException("reader");
}
// response-num
string word = reader.ReadWord();
if(word == null){
throw new SIP_ParseException("RAck response-num value is missing !");
}
try{
m_ResponseNumber = Convert.ToInt32(word);
}
catch{
throw new SIP_ParseException("Invalid RAck response-num value !");
}
// CSeq-num
word = reader.ReadWord();
if(word == null){
throw new SIP_ParseException("RAck CSeq-num value is missing !");
}
try{
m_CSeqNumber = Convert.ToInt32(word);
}
catch{
throw new SIP_ParseException("Invalid RAck CSeq-num value !");
}
// Get request method
word = reader.ReadWord();
if(word == null){
throw new SIP_ParseException("RAck Method value is missing !");
}
m_Method = word;
}
#endregion
#region method ToStringValue
/// <summary>
/// Converts this to valid "RAck" value.
/// </summary>
/// <returns>Returns "RAck" value.</returns>
public override string ToStringValue()
{
/*
RAck = response-num LWS CSeq-num LWS Method
response-num = 1*DIGIT
CSeq-num = 1*DIGIT
*/
return m_ResponseNumber + " " + m_CSeqNumber + " " + m_Method;
}
#endregion
#region Properties Implementation
/// <summary>
/// Gets or sets response number.
/// </summary>
public int ResponseNumber
{
get{ return m_ResponseNumber; }
set{
if(value < 1){
throw new ArgumentException("ResponseNumber value must be >= 1 !");
}
m_ResponseNumber = value;
}
}
/// <summary>
/// Gets or sets CSeq number.
/// </summary>
public int CSeqNumber
{
get{ return m_CSeqNumber; }
set{
if(value < 1){
throw new ArgumentException("CSeqNumber value must be >= 1 !");
}
m_CSeqNumber = value;
}
}
/// <summary>
/// Gets or sets method.
/// </summary>
public string Method
{
get{ return m_Method; }
set{
if(value == null){
throw new ArgumentNullException("Method");
}
m_Method = value;
}
}
#endregion
}
}
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