/// <summary>
/// Indicates whether the current object is equal to another object of the same type.
/// </summary>
/// <param name="other">An object to compare with this object.</param>
/// <returns>true if the current object is equal to the <paramref name="other">other</paramref> parameter; otherwise, false.</returns>
public bool Equals(SubscriptionEventName other)
{
if (ReferenceEquals(null, other))
{
return(false);
}
return(this.Equals(other.SchemaQualifiedEventName));
}
/// <summary>
/// Registers a new receiver to receive any raised events of the given type.
/// </summary>
/// <param name="eventName">Name of the event.</param>
/// <param name="receiver">The receiver to add.</param>
public void AddReceiver(SubscriptionEventName eventName, ISubscriptionEventReceiver receiver)
{
Validation.ThrowIfNull(eventName, nameof(eventName));
Validation.ThrowIfNull(receiver, nameof(receiver));
lock (_receivers)
{
if (!_receivers.ContainsKey(eventName))
{
_receivers.Add(eventName, new HashSet <ISubscriptionEventReceiver>());
}
_receivers[eventName].Add(receiver);
}
}
/// <summary>
/// Removes the receiver from the list of events to be delivered for the given event type.
/// </summary>
/// <param name="eventName">Type of the event.</param>
/// <param name="receiver">The receiver to remove.</param>
public void RemoveReceiver(SubscriptionEventName eventName, ISubscriptionEventReceiver receiver)
{
if (receiver == null || eventName == null)
{
return;
}
lock (_receivers)
{
if (_receivers.ContainsKey(eventName))
{
if (_receivers[eventName].Contains(receiver))
{
_receivers[eventName].Remove(receiver);
}
if (_receivers[eventName].Count == 0)
{
_receivers.Remove(eventName);
}
}
}
}
/// <summary>
/// Creates a set of event names representing all the possible forms of the event as defined
/// by the graph field.
/// </summary>
/// <param name="schema">The schema owning the field definition.</param>
/// <param name="field">The field to create names for.</param>
/// <returns>IEnumerable<SubscriptionEventName>.</returns>
public static IEnumerable <SubscriptionEventName> FromGraphField(ISchema schema, ISubscriptionGraphField field)
{
Validation.ThrowIfNull(schema, nameof(schema));
Validation.ThrowIfNull(field, nameof(field));
return(SubscriptionEventName.FromSchemaTypeAndField(schema.GetType(), field));
}
/// <summary>
/// Creates a set of event names representing all the possible forms of the event as defined
/// by the grpah field.
/// </summary>
/// <typeparam name="TSchema">The type of the schema the graph field exists in.</typeparam>
/// <param name="field">The field to create names for.</param>
/// <returns>IEnumerable<SubscriptionEventName>.</returns>
public static IEnumerable <SubscriptionEventName> FromGraphField <TSchema>(ISubscriptionGraphField field)
where TSchema : class, ISchema
{
Validation.ThrowIfNull(field, nameof(field));
return(SubscriptionEventName.FromSchemaTypeAndField(typeof(TSchema), field));
}