/// <summary>
/// Ctor with a publish endpoint, event writer and logger
/// </summary>
/// <param name="publishEndpoint"></param>
/// <param name="ceWriter"></param>
/// <param name="logger"></param>
public BusinessService(IPublishEndpoint publishEndpoint, ICloudEventWriter ceWriter,
ILogger <BusinessService> logger)
{
this._publishEndpoint = publishEndpoint;
this._ceWriter = ceWriter;
this._logger = logger;
}
/// <summary>
/// Publish a CloudEvent of type <see cref="IGenericEvent{TEvent}"/> with the specified payload and (optionally) event subject
/// </summary>
/// <typeparam name="TPayload"></typeparam>
/// <typeparam name="TEvent"></typeparam>
/// <param name="publishEndpoint"></param>
/// <param name="writer"></param>
/// <param name="payload"></param>
/// <param name="eventSubject"></param>
/// <param name="cancellationToken"></param>
/// <returns></returns>
public static async Task PublishGenericCloudEvent <TPayload, TEvent>(this IPublishEndpoint publishEndpoint,
ICloudEventWriter writer, TPayload payload, string eventSubject = null,
CancellationToken cancellationToken = default(CancellationToken)) where TEvent : class, IEvent
{
await publishEndpoint.Publish <TEvent>(
CloudEventProducer.GetEvent <TPayload, TEvent>(writer, payload, eventSubject),
cancellationToken);
}
/// <summary>
/// Adds the formatted payload to a CloudEvent envelope and returns an <see cref="IGenericEvent{TEvent}"/>
/// with the serialized CloudEvent as event data
/// </summary>
/// <typeparam name="TPayload"></typeparam>
/// <typeparam name="TEvent"></typeparam>
/// <param name="writer"></param>
/// <param name="payload"></param>
/// <param name="eventSubject"></param>
/// <returns></returns>
public static IGenericEvent <TEvent> GetEvent <TPayload, TEvent>(ICloudEventWriter writer, TPayload payload, string eventSubject = null)
{
if (String.IsNullOrWhiteSpace(eventSubject))
{
eventSubject = String.Empty;
}
return(new GenericEventContract <TEvent>
{
EventData = writer.GetBytes <TPayload>(
payload, eventSubject: eventSubject)
});
}
/// <summary>
/// Adds the formatted payload to a CloudEvent envelope and returns an <see cref="IEvent"/>
/// with the serialized CloudEvent as event data
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="writer"></param>
/// <param name="payload"></param>
/// <param name="eventSubject"></param>
/// <returns></returns>
public static IEvent GetEvent <T>(ICloudEventWriter writer, T payload, string eventSubject = null)
{
if (String.IsNullOrWhiteSpace(eventSubject))
{
eventSubject = String.Empty;
}
return(new EventContract
{
EventData = writer.GetBytes <T>(
payload, eventSubject: eventSubject)
});
}