static void Main(string[] args)
{
Console.WriteLine("Events ...");
var weatherForecasts = new List <WeatherForecast>
{
new WeatherForecast(DateTime.Now, 0, "freezing"),
new WeatherForecast(DateTime.Now, 100, "boiling"),
};
IEvent forecastEvent = new WeatherForecastEvent(weatherForecasts);
IEvent reportEvent = new WeatherReportEvent(weatherForecasts);
var events = new List <IEvent> {
forecastEvent, reportEvent
};
foreach (var @event in events)
{
Console.WriteLine($"\n{@event.GetType().Name}: Event Id {@event.Id} created at {@event.CreationDate.ToShortTimeString()}");
if (@event is WeatherForecastEvent _forecastEvent)
{
foreach (var weather in _forecastEvent.WeatherForecasts)
{
Console.WriteLine($"Forecast: {weather.Summary}: {weather.TemperatureC} C, {weather.TemperatureF} F");
}
}
if (@event is WeatherReportEvent _reportEvent)
{
foreach (var weather in _reportEvent.WeatherForecasts)
{
Console.WriteLine($"Report: {weather.Summary}: {weather.TemperatureC} C, {weather.TemperatureF} F");
}
}
}
Console.WriteLine("\nHandlers ...");
var forecastHandler = new WeatherForecastEventHandler();
var reportHandler = new WeatherReportEventHandler();
var handlers = new List <IEventHandler> {
forecastHandler, reportHandler
};
foreach (var handler in handlers)
{
if (handler is IEventHandler <WeatherForecastEvent> )
{
handler.HandleAsync(forecastEvent);
}
if (handler is IEventHandler <WeatherReportEvent> )
{
handler.HandleAsync(reportEvent);
}
}
}
// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
public void Configure(IApplicationBuilder app, IWebHostEnvironment env, ILogger <Startup> logger,
WeatherForecastEventHandler forecastEventHandler)
{
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
app.UseSwagger();
app.UseSwaggerUI(c => c.SwaggerEndpoint("/swagger/v1/swagger.json", "Subscriber v1"));
}
app.UseRouting();
app.UseCloudEvents();
app.UseEndpoints(endpoints =>
{
endpoints.MapControllers();
endpoints.MapDaprEventBus(eventBus =>
{
// Subscribe with a handler
eventBus.Subscribe(forecastEventHandler);
});
});
}
