public static string Subscribe <TPayload>(
this IMessageBrokerService messageBrokerService,
string topic,
Action <Message <TPayload> > callback,
Func <Message <TPayload>, bool> filter = null) where TPayload : class
{
var id = Guid.NewGuid().ToString();
var payloadType = typeof(TPayload).Name;
var messageSubscription = new MessageSubscription
{
Id = id,
Topic = topic,
PayloadType = typeof(TPayload).Name,
Callback = c => callback(new Message <TPayload>(topic, new MessagePayload <TPayload>(payloadType, c.Payload.Content.ToObject <TPayload>())))
};
if (filter != null)
{
messageSubscription.Filter = c => filter(new Message <TPayload>(topic, new MessagePayload <TPayload>(payloadType, c.Payload.Content.ToObject <TPayload>())));
}
messageBrokerService.Subscribe(messageSubscription);
return(id);
}
public static string Subscribe(
this IMessageBrokerService messageBrokerService,
string topic,
string payloadType,
Action <Message <JObject> > callback,
Func <Message <JObject>, bool> filter = null)
{
if (messageBrokerService == null)
{
throw new ArgumentNullException(nameof(messageBrokerService));
}
if (topic == null)
{
throw new ArgumentNullException(nameof(topic));
}
if (callback == null)
{
throw new ArgumentNullException(nameof(callback));
}
var id = Guid.NewGuid().ToString();
messageBrokerService.Subscribe(new MessageSubscription
{
Id = id,
Topic = topic,
PayloadType = payloadType,
Filter = filter,
Callback = callback
});
return(id);
}
public void Subscribe(string id, string topic, string payloadType, string callbackFunctionName)
{
var messageSubscription = new MessageSubscription
{
Id = id,
Topic = topic,
PayloadType = payloadType,
Callback = m => _scriptingSession.Execute(callbackFunctionName)
};
_messageBrokerService.Subscribe(messageSubscription);
}
public static ITrigger CreateTrigger <TPayload>(
this IMessageBrokerService messageBrokerService,
string topic,
Func <Message <TPayload>, bool> filter = null) where TPayload : class
{
if (messageBrokerService == null)
{
throw new ArgumentNullException(nameof(messageBrokerService));
}
if (topic == null)
{
throw new ArgumentNullException(nameof(topic));
}
var trigger = new Trigger();
messageBrokerService.Subscribe(topic, c => trigger.Execute(), filter);
return(trigger);
}