/// <summary>
/// Create new session attribute from session description field.
/// </summary>
/// <param name="sessionDescriptionField">Session description field.</param>
/// <returns>Session attribute object.</returns>
/// <exception cref="SdpFormatException">Invalid format of session description field.</exception>
public static SessionAttribute CreateAttribute(string sessionDescriptionField)
{
string fieldValue = GetFieldValue(sessionDescriptionField);
string[] attributeValues = fieldValue.Split(new char[] { ':' }, 2, StringSplitOptions.None);
SessionAttribute at;
switch (attributeValues.Length)
{
case 1:
// flag attribute
at = new SessionAttribute(attributeValues[0]);
break;
case 2:
// value attribute
at = new SessionAttribute(attributeValues[0], attributeValues[1]);
break;
default:
throw new SdpFormatException("Invalid format of SDP attribute.");
}
at.OriginalField = sessionDescriptionField;
return(at);
}
protected void set(object value)
{
StackFrame caller = new StackFrame(1);
MethodBase method = caller.GetMethod();
string propName = method.Name.Substring(4);
Type type = method.ReflectedType;
PropertyInfo pi = type.GetProperty(propName);
object[] attributes = pi.GetCustomAttributes(typeof(SessionAttribute), true);
if (attributes != null && attributes.Length == 1)
{
SessionAttribute ssAttr = attributes[0] as SessionAttribute;
Session[ssAttr.Key] = value;
}
}
protected dynamic get()
{
StackFrame caller = new StackFrame(1);
MethodBase method = caller.GetMethod();
string propName = method.Name.Substring(4);
Type type = method.ReflectedType;
PropertyInfo pi = type.GetProperty(propName);
object[] attributes = pi.GetCustomAttributes(typeof(SessionAttribute), true);
if (attributes != null && attributes.Length == 1)
{
SessionAttribute ssAttr = attributes[0] as SessionAttribute;
if (Session.ContainsKey(ssAttr.Key))
{
return(Session[ssAttr.Key]);
}
}
return(default(dynamic));
}
public void Specificationhelper_CreateSessionAttribute_Success()
{
// *** ARRANGE ***
string flagAtField = "a=recvonly";
string varAtField = "a=path:msrp://bobpc.example.com:8888/9di4ea;tcp";
SessionAttribute flagAtExpected = new SessionAttribute("recvonly");
SessionAttribute varAtExpected = new SessionAttribute("path", "msrp://bobpc.example.com:8888/9di4ea;tcp");
// *** ACT ***
SessionAttribute flagAtResult = SpecificationHelpers.CreateAttribute(flagAtField);
SessionAttribute varAtResult = SpecificationHelpers.CreateAttribute(varAtField);
// *** ASSERT ***
string efEncoded = flagAtExpected.Encode();
string rfEncoded = flagAtResult.Encode();
Assert.Equal(efEncoded, rfEncoded);
string evEncoded = varAtExpected.Encode();
string rvEncoded = varAtResult.Encode();
Assert.Equal(evEncoded, rvEncoded);
}
public static ErrorCode AddSessionAttribute(SessionAttribute sessionAttribute)
{
return(new ErrorCode());
}