/// <summary>
/// Handles the publisher.
/// </summary>
/// <param name="publisher">The publisher.</param>
/// <param name="register">true to register publications, false to unregister them.</param>
/// <param name="eventInfo">The published event..</param>
/// <param name="attr">The attribute</param>
/// <param name="eventTopicHost">The event topic host.</param>
private void HandlePublisher(
object publisher,
bool register,
EventInfo eventInfo,
EventPublicationAttribute attr,
IEventTopicHost eventTopicHost)
{
IEventTopic topic = eventTopicHost.GetEventTopic(attr.Topic);
if (register)
{
List <IPublicationMatcher> matchers = new List <IPublicationMatcher>();
foreach (Type type in attr.MatcherTypes)
{
matchers.Add(this.factory.CreatePublicationMatcher(type));
}
topic.AddPublication(
publisher,
eventInfo,
attr.HandlerRestriction,
matchers);
}
else
{
topic.RemovePublication(publisher, eventInfo);
}
}
public void RemovePublication(string topic, object publisher, string eventName)
{
IEventTopic eventTopic = this.eventTopicHost.GetEventTopic(topic);
IPublication publication = eventTopic.RemovePublication(publisher, eventName);
if (publication != null)
{
publication.Dispose();
}
}
/// <summary>
/// Removes a publication. Publications added with <see cref="AddPublication(string,object,ref EventHandler,HandlerRestriction,IPublicationMatcher[])"/> have to be removed in order that the event broker can be disposed.
/// </summary>
/// <param name="topic">The topic.</param>
/// <param name="publisher">The publisher.</param>
/// <param name="publishedEvent">The published event.</param>
public void RemovePublication <TEventArgs>(string topic, object publisher, ref EventHandler <TEventArgs> publishedEvent) where TEventArgs : EventArgs
{
IEventTopic eventTopic = this.eventTopicHost.GetEventTopic(topic);
IPublication publication = eventTopic.RemovePublication(publisher, CodePublication <TEventArgs> .EventNameOfCodePublication);
var codePublication = publication as CodePublication <TEventArgs>;
if (codePublication != null)
{
codePublication.Unregister(ref publishedEvent);
}
}
private void UnregisterPropertyPublications(object publisher, IEnumerable <PropertyPublicationScanResult> propertyPublications)
{
foreach (PropertyPublicationScanResult propertyPublication in propertyPublications)
{
IEventTopic topic = this.eventTopicHost.GetEventTopic(propertyPublication.Topic);
IPublication publication = topic.RemovePublication(publisher, propertyPublication.Event.Name);
if (publication != null)
{
publication.Dispose();
}
}
}
/// <summary>
/// Fires the specified topic directly on the <see cref="IEventBroker"/> without a real publisher.
/// This is useful when temporarily created objects need to fire events.
/// The event is fired globally but can be matched with <see cref="Matchers.ISubscriptionMatcher"/>.
/// </summary>
/// <param name="topic">The topic URI.</param>
/// <param name="publisher">The publisher (for event flow and logging).</param>
/// <param name="handlerRestriction">The handler restriction.</param>
/// <param name="sender">The sender (passed to the event handler).</param>
/// <param name="eventArgs">The <see cref="System.EventArgs"/> instance containing the event data.</param>
public void Fire(string topic, object publisher, HandlerRestriction handlerRestriction, object sender, EventArgs eventArgs)
{
Ensure.ArgumentNotNull(eventArgs, "eventArgs");
IEventTopic eventTopic = this.eventTopicHost.GetEventTopic(topic);
using (var spontaneousPublication = new SpontaneousPublication(eventTopic, publisher, eventArgs.GetType(), handlerRestriction, new List <IPublicationMatcher>()))
{
eventTopic.AddPublication(spontaneousPublication);
eventTopic.Fire(sender, eventArgs, spontaneousPublication);
eventTopic.RemovePublication(spontaneousPublication);
}
}
/// <summary>
/// Fires the specified topic directly on the <see cref="IEventBroker"/> without a real publisher.
/// This is useful when temporarily created objects need to fire events.
/// The event is fired globally but can be matched with <see cref="Matchers.ISubscriptionMatcher"/>.
/// </summary>
/// <param name="topic">The topic URI.</param>
/// <param name="publisher">The publisher (for event flow and logging).</param>
/// <param name="handlerRestriction">The handler restriction.</param>
/// <param name="sender">The sender (passed to the event handler).</param>
/// <param name="eventArgs">The <see cref="System.EventArgs"/> instance containing the event data.</param>
public void Fire(string topic, object publisher, HandlerRestriction handlerRestriction, object sender, EventArgs eventArgs)
{
Guard.AgainstNullArgument(nameof(eventArgs), eventArgs);
IEventTopic eventTopic = this.eventTopicHost.GetEventTopic(topic);
using (var spontaneousPublication = new SpontaneousPublication(eventTopic, publisher, eventArgs.GetType(), handlerRestriction, new List <IPublicationMatcher>()))
{
eventTopic.AddPublication(spontaneousPublication);
eventTopic.Fire(sender, eventArgs, spontaneousPublication);
eventTopic.RemovePublication(publisher, SpontaneousPublication.SpontaneousEventName);
}
}
/// <summary>
/// Processes the publisher.
/// </summary>
/// <param name="topic">The topic.</param>
/// <param name="publisher">The publisher.</param>
/// <param name="eventName">Name of the event.</param>
/// <param name="handlerRestriction">The handler restriction.</param>
/// <param name="matchers">The matchers.</param>
/// <param name="register">true to register publications, false to unregister them.</param>
/// <param name="eventTopicHost">The event topic host.</param>
public void ProcessPublisher(string topic, object publisher, string eventName, HandlerRestriction handlerRestriction, IList <IPublicationMatcher> matchers, bool register, IEventTopicHost eventTopicHost)
{
EventInfo eventInfo = publisher.GetType().GetEvent(eventName);
if (eventInfo == null)
{
throw new PublisherEventNotFoundException(publisher.GetType(), eventName);
}
IEventTopic eventTopic = eventTopicHost.GetEventTopic(topic);
if (register)
{
eventTopic.AddPublication(publisher, eventInfo, handlerRestriction, matchers);
}
else
{
eventTopic.RemovePublication(publisher, eventInfo);
}
}
/// <summary>
/// Removes a publication. Publications added with <see cref="AddPublication(string,object,ref EventHandler,HandlerRestriction,IPublicationMatcher[])"/> have to be removed in order that the event broker can be disposed.
/// </summary>
/// <param name="topic">The topic.</param>
/// <param name="publisher">The publisher.</param>
/// <param name="publishedEvent">The published event.</param>
public void RemovePublication <TEventArgs>(string topic, object publisher, ref EventHandler <TEventArgs> publishedEvent) where TEventArgs : EventArgs
{
IEventTopic eventTopic = this.eventTopicHost.GetEventTopic(topic);
eventTopic.RemovePublication(publisher, ref publishedEvent);
}
/// <summary>
/// Removes a publication. Publications added with <see cref="AddPublication(string,object,ref EventHandler,HandlerRestriction,IPublicationMatcher[])"/> have to be removed in order that the event broker can be disposed.
/// </summary>
/// <param name="topic">The topic.</param>
/// <param name="publisher">The publisher.</param>
/// <param name="publishedEvent">The published event.</param>
public void RemovePublication(string topic, object publisher, ref EventHandler publishedEvent)
{
IEventTopic eventTopic = this.eventTopicHost.GetEventTopic(topic);
eventTopic.RemovePublication(publisher, ref publishedEvent);
}
