internal MessageFormularRegistry()
{
var formular = new MessageFormular(MessageFormular.DYNAMIC, null as Message); // empty message
Data["_dyn"] = new List <MessageFormular>();
Data["_dyn"].Add(formular);
}
/// <summary>
/// Unregisters a specific Formular from a specific definer source
/// </summary>
/// <param name="definerId"></param>
/// <returns>true, if undefine had an effect.</returns>
public bool Undefine(string definerId, MessageFormular formular)
{
if (!Data.ContainsKey(definerId))
{
return(false);
}
return(Data[definerId].Remove(formular));
}
/// <summary>Tries to define a Formular. Each named Formular can only be defined by one sender entity</summary>
/// <param name="definerId">A unique string that helps to keep track, who registered a given Formular.</param>
/// <param name="formular">A MessageFormular to be registered.</param>
/// <param name="supressEvent">A bool indicating if the registry should skip informing interested parties about this change.</param>
/// <exception cref="ArgumentNullException">Thrown when the Formular is null.</exception>
/// <exception cref="RegistryException">This exception is thrown if a syntax error prevents the config to be parsed.</exception>
/// <returns>success</returns>
/// <remarks>Setting the supressEvent parameter to true will prevent this method to inform any TypeChanged subscribers.</remarks>
public bool Define(string definerId, MessageFormular formular, bool supressEvent = false)
{
if (formular == null)
{
throw new ArgumentNullException("Formular cannot be null");
}
if (formular.IsDynamic)
{
return(false);
}
if (!Data.ContainsKey(definerId))
{
Data[definerId] = new List <MessageFormular>();
}
var conflict = (
from nodeId in Data.Keys
where definerId != nodeId
from form in Data[nodeId]
where formular.Name == form.Name
select form.Name
).FirstOrDefault();
if (conflict != null)
{
throw new RegistryException("Cannot add the formular to the registry. Another formular with the name \"" + conflict + "\" already exists.");
}
var ownFormulars = Data[definerId];
var oldForm = (
from form in ownFormulars
where form.Name == formular.Name
select form
).FirstOrDefault();
// no need to worry someone, if we conclude nothing's changed.
// if (formular.Equals(oldForm)) return false;
if (oldForm != null)
{
ownFormulars.Remove(oldForm);
}
ownFormulars.Add(formular);
if (!supressEvent)
{
if (FormularChanged != null)
{
FormularChanged(this, formular);
}
}
return(true);
}
public Message(MessageFormular formular)
: this()
{
Formular = formular;
}
public Message(MessageFormular formular)
: base()
{
Formular = formular;
}