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using System;
using System.Collections.Generic;
using System.Text;
namespace LumiSoft.Net.SIP.Message
{
/// <summary>
/// Implements SIP "Event" value. Defined in RFC 3265.
/// </summary>
/// <remarks>
/// <code>
/// RFC 3265 Syntax:
/// Event = event-type *( SEMI event-param )
/// event-param = generic-param / ( "id" EQUAL token )
/// </code>
/// </remarks>
public class SIP_t_Event : SIP_t_ValueWithParams
{
private string m_EventType = "";
/// <summary>
/// Default constructor.
/// </summary>
/// <param name="value">SIP 'Event' value.</param>
public SIP_t_Event(string value)
{
Parse(value);
}
#region method Parse
/// <summary>
/// Parses "Event" from specified value.
/// </summary>
/// <param name="value">SIP "Event" 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 "Event" 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)
{
/*
Event = event-type *( SEMI event-param )
event-param = generic-param / ( "id" EQUAL token )
*/
if(reader == null){
throw new ArgumentNullException("reader");
}
// event-type
string word = reader.ReadWord();
if(word == null){
throw new SIP_ParseException("SIP Event 'event-type' value is missing !");
}
m_EventType = word;
// Parse parameters
ParseParameters(reader);
}
#endregion
#region method ToStringValue
/// <summary>
/// Converts this to valid "Event" value.
/// </summary>
/// <returns>Returns "Event" value.</returns>
public override string ToStringValue()
{
/*
Event = event-type *( SEMI event-param )
event-param = generic-param / ( "id" EQUAL token )
*/
StringBuilder retVal = new StringBuilder();
// event-type
retVal.Append(m_EventType);
// Add parameters
retVal.Append(ParametersToString());
return retVal.ToString();
}
#endregion
#region Properties Implementation
/// <summary>
/// Gets or sets event type.
/// </summary>
/// <exception cref="ArgumentNullException">Is raised when null vallue is passed.</exception>
/// <exception cref="ArgumentException">Is raised when emptu string passed.</exception>
public string EventType
{
get{ return m_EventType; }
set{
if(value == null){
throw new ArgumentNullException("EventType");
}
if(value == ""){
throw new ArgumentException("Property EventType value can't be '' !");
}
m_EventType = value;
}
}
/// <summary>
/// Gets or sets 'id' parameter value. Value null means not specified.
/// </summary>
public string ID
{
get{
SIP_Parameter parameter = this.Parameters["id"];
if(parameter != null){
return parameter.Value;
}
else{
return null;
}
}
set{
if(string.IsNullOrEmpty(value)){
this.Parameters.Remove("id");
}
else{
this.Parameters.Set("id",value);
}
}
}
#endregion
}
}
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