public static void ProduceEvents()
{
List <int> eventorder;
eventorder = new List <int>();
eventorder.Add(1); //Order Created
eventorder.Add(2); //Order Shipped
eventorder.Add(3); //Order Delivered
eventorder.Add(4); //Order Cancelled
eventorder.Add(5); //Order Returned
var conf = new ProducerConfig {
BootstrapServers = "localhost:9092"
};
Action <DeliveryReport <Null, string> > handler = r =>
Console.WriteLine(r.Error.IsError
? $"Delivery Error: {r.Error.Reason}"
: $"Delivered message to {r.TopicPartitionOffset}");
using (var p = new ProducerBuilder <Null, string>(conf).Build())
{
var random = new Random();
while (true)
{
string sellerId = Guid.NewGuid().ToString();
//seller can repeat
//userId is randomly generated
//The events should also be generated in random order
//shuffle the list
//7 orders per seller
for (int i = 0; i < 7; ++i)
{
eventorder = eventorder.OrderBy(x => Guid.NewGuid()).ToList();
var orderId = Guid.NewGuid().ToString();
foreach (var num in eventorder)
{
var message = "";
switch (num)
{
case 1:
//Order Created
var orderCreated = new OrderCreated();
message = orderCreated.CreateJson(orderId, sellerId);
Console.WriteLine("order-created " + message);
p.Produce("order-created", new Message <Null, string> {
Value = message
}, handler);
break;
case 2:
//Order Shipped
var orderShipped = new OrderShipped();
message = orderShipped.createJson(orderId, sellerId);
Console.WriteLine("order-shipped " + message);
p.Produce("order-shipped", new Message <Null, string> {
Value = message
}, handler);
break;
case 3:
//Order Delivered
var orderDelivered = new OrderDelivered();
message = orderDelivered.CreateJson(orderId, sellerId);
Console.WriteLine("order-delivered " + message);
p.Produce("order-delivered", new Message <Null, string> {
Value = message
}, handler);
break;
case 4:
//Order Cancelled
var orderCancelled = new OrderCancelled();
message = orderCancelled.createJson(orderId, sellerId, "customer",
"The reason for cancellation");
Console.WriteLine("order-cancelled " + message);
p.Produce("order-cancelled", new Message <Null, string> {
Value = message
}, handler);
break;
case 5:
//Order Returned
var orderReturned = new OrderReturned();
message = orderReturned.createJson(orderId, sellerId);
Console.WriteLine("order-returned " + message);
p.Produce("order-returned", new Message <Null, string> {
Value = message
}, handler);
break;
}
Thread.Sleep(1000);
}
Thread.Sleep(1000);
}
}
}
}
