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using System;
using System.Collections.Generic;
using System.Text;
namespace LumiSoft.Net.SIP.Message
{
/// <summary>
/// Implements SIP "Min-SE" value. Defined in RFC 4028.
/// </summary>
/// <remarks>
/// <code>
/// RFC 4028 Syntax:
/// Min-SE = delta-seconds *(SEMI generic-param)
/// </code>
/// </remarks>
public class SIP_t_MinSE : SIP_t_ValueWithParams
{
private int m_Time = 90;
/// <summary>
/// Default constructor.
/// </summary>
/// <param name="value">Min-SE value.</param>
public SIP_t_MinSE(string value)
{
Parse(value);
}
#region method Parse
/// <summary>
/// Parses "Min-SE" from specified value.
/// </summary>
/// <param name="value">SIP "Min-SE" 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 "Min-SE" 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)
{
/*
Min-SE = delta-seconds *(SEMI generic-param)
*/
if(reader == null){
throw new ArgumentNullException("reader");
}
// Parse address
string word = reader.ReadWord();
if(word == null){
throw new SIP_ParseException("Min-SE delta-seconds value is missing !");
}
try{
m_Time = Convert.ToInt32(word);
}
catch{
throw new SIP_ParseException("Invalid Min-SE delta-seconds value !");
}
// Parse parameters
ParseParameters(reader);
}
#endregion
#region method ToStringValue
/// <summary>
/// Converts this to valid "Min-SE" value.
/// </summary>
/// <returns>Returns "Min-SE" value.</returns>
public override string ToStringValue()
{
/*
Min-SE = delta-seconds *(SEMI generic-param)
*/
StringBuilder retVal = new StringBuilder();
// Add address
retVal.Append(m_Time.ToString());
// Add parameters
retVal.Append(ParametersToString());
return retVal.ToString();
}
#endregion
#region Properties Implementation
/// <summary>
/// Gets or sets time in seconds when session expires.
/// </summary>
/// <exception cref="ArgumentException">Is raised when value is less than 1.</exception>
public int Time
{
get{ return m_Time; }
set{
if(m_Time < 1){
throw new ArgumentException("Time value must be > 0 !");
}
m_Time = value;
}
}
#endregion
}
}
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