private static void Test()
{
// The Kafka endpoint address
string kafkaEndpoint = "127.0.0.1:9092";
// The Kafka topic we'll be using
string kafkaTopic = "testtopic";
// Create the producer configuration
Dictionary <string, object> producerConfig = new Dictionary <string, object> {
{ "bootstrap.servers", kafkaEndpoint }
};
// Create the producer
using (Producer <Null, string> producer = new Producer <Null, string>(producerConfig, null, new StringSerializer(Encoding.UTF8))) {
// Send 10 messages to the topic
for (int i = 0; i < 10; i++)
{
string message = $"Event {i}";
Message <Null, string> result = producer.ProduceAsync(kafkaTopic, null, message).GetAwaiter().GetResult();
Console.WriteLine($"Event {i} sent on Partition: {result.Partition} with Offset: {result.Offset}");
}
}
// Create the consumer configuration
Dictionary <string, object> consumerConfig = new Dictionary <string, object>
{
{ "group.id", "myconsumer" },
{ "bootstrap.servers", kafkaEndpoint },
{ "auto.offset.reset", "earliest" }
};
// Create the consumer
using (Consumer <Null, string> consumer = new Consumer <Null, string>(consumerConfig, null, new StringDeserializer(Encoding.UTF8))) {
// Subscribe to the OnMessage event
consumer.OnMessage += (obj, msg) => {
Console.WriteLine($"Received: {msg.Value}");
};
// Subscribe to the Kafka topic
consumer.Subscribe(new List <string>()
{
kafkaTopic
});
// Handle Cancel Keypress
bool cancelled = false;
Console.CancelKeyPress += (_, e) => {
e.Cancel = true; // prevent the process from terminating.
cancelled = true;
};
Console.WriteLine("Ctrl-C to exit.");
// Poll for messages
while (!cancelled)
{
consumer.Poll();
}
}
}
static void Main(string[] args)
{
if (!File.Exists("Offset.txt"))
{
var stream = File.Create("Offset.txt");
stream.Close();
StreamWriter arq = new StreamWriter("Offset.txt");
arq.WriteLine("0");
arq.Close();
}
StreamReader file2 = new StreamReader("Offset.txt");
offint = int.Parse(file2.ReadLine());
file2.Close();
////////////////////////////////////////////////////////////////////////////////
string topic = "ComandoTopic4";
Uri uri = new Uri("http://localhost:9092");
var options = new KafkaOptions(uri);
var router = new BrokerRouter(options);
var client = new Producer(router);
/////////////////////////////////////////////////////////////////////////////////
String data;
int comand;
int chave;
Comando comando;
Message msg2;
Task threadReceive;
threadReceive = new Task(ThreadReceive);
threadReceive.Start();
while (true)
{
if (!Receive)
{
Console.WriteLine("\nQual comando(ADD-1/READ-2/UPDATE-3/DELETE-4/LISTAR-5/DESLIGAR-6/SNAPSHOT-8)");
if (!int.TryParse(Console.ReadLine(), out comand) || comand <= 0 || comand > 8)
{
Console.WriteLine("Comando Inválido!");
continue;
}
switch (comand)
{
case (int)Comandos.ADD:
Console.WriteLine("Insira chave");
if (!int.TryParse(Console.ReadLine(), out chave))
{
Console.WriteLine("Chave inválida");
continue;
}
Console.WriteLine("Insira dado");
data = Console.ReadLine();
comando = new Comando(Comandos.ADD, chave, data);
msg2 = new Message(JsonConvert.SerializeObject(comando));
client.SendMessageAsync(topic, new List <Message> {
msg2
});
Receive = true;
break;
case (int)Comandos.READ:
Console.WriteLine("Insira chave");
if (!int.TryParse(Console.ReadLine(), out chave))
{
Console.WriteLine("Chave inválida");
continue;
}
comando = new Comando(Comandos.READ, chave, "a");
msg2 = new Message(JsonConvert.SerializeObject(comando));
client.SendMessageAsync(topic, new List <Message> {
msg2
});
Receive = true;
break;
case (int)Comandos.UPDATE:
Console.WriteLine("Insira chave");
if (!int.TryParse(Console.ReadLine(), out chave))
{
Console.WriteLine("Chave inválida");
continue;
}
Console.WriteLine("Insira dado");
data = Console.ReadLine();
comando = new Comando(Comandos.UPDATE, chave, data);
msg2 = new Message(JsonConvert.SerializeObject(comando));
client.SendMessageAsync(topic, new List <Message> {
msg2
});
Receive = true;
break;
case (int)Comandos.DELETE:
Console.WriteLine("Insira chave");
if (!int.TryParse(Console.ReadLine(), out chave))
{
Console.WriteLine("Chave inválida");
continue;
}
comando = new Comando(Comandos.DELETE, chave, "c");
msg2 = new Message(JsonConvert.SerializeObject(comando));
client.SendMessageAsync(topic, new List <Message> {
msg2
});
Receive = true;
break;
case (int)Comandos.DESLIGAR:
comando = new Comando(Comandos.DESLIGAR, 0, "c");
msg2 = new Message(JsonConvert.SerializeObject(comando));
client.SendMessageAsync(topic, new List <Message> {
msg2
}).Wait();
Receive = true;
break;
case (int)Comandos.LISTAR:
comando = new Comando(Comandos.LISTAR, 0, "c");
msg2 = new Message(JsonConvert.SerializeObject(comando));
client.SendMessageAsync(topic, new List <Message> {
msg2
});
Receive = true;
break;
case (int)Comandos.SNAPSHOT:
Console.WriteLine("Insira o tempo(segundos): ");
if (!int.TryParse(Console.ReadLine(), out chave))
{
Console.WriteLine("Tempo inválido");
continue;
}
comando = new Comando(Comandos.SNAPSHOT, chave, "c");
msg2 = new Message(JsonConvert.SerializeObject(comando));
client.SendMessageAsync(topic, new List <Message> {
msg2
});
Receive = true;
break;
}
}
}
}
public void Producer(string msg)
{
using (Producer client = new Producer(_router)) {
client.SendMessageAsync(CsTopic, new[] { new Message(msg) }).Wait();
}
}
