/// <see cref="IGojulMQMessageProducer{T}.SendMessages(string, GojulMQMessageKeyProvider{T}, IEnumerable{T})"/>
public void SendMessages(string topic, GojulMQMessageKeyProvider <T> messageKeyProvider, IEnumerable <T> messages)
{
Condition.Requires(topic, "topic").IsNotNull().IsNotEmpty();
Condition.Requires(messageKeyProvider, "messageKeyProvider").IsNotNull();
Condition.Requires(messages, "messages").IsNotNull();
log.Information(string.Format("Starting to send messages to topic %s", topic));
int i = 0;
foreach (T msg in messages)
{
Condition.Requires((object)msg, "msg").IsNotNull();
// We force the producer to produce synchronously. The goal here is to avoid
// hundreds of thread producing items in the loop, which would be a nightmare
// in term for performance.
var kafkaMessage = new Message <string, T> {
Key = messageKeyProvider(msg), Value = msg
};
_producer.Produce(topic, kafkaMessage);
i++;
}
_producer.Flush();
log.Information(string.Format("Successfully sent {0} messages to topic {1}", i, topic));
}
/// <see cref="IGojulMQMessageProducer{T}.SendMessage(string, GojulMQMessageKeyProvider{T}, T)"/>
public void SendMessage(string topic, GojulMQMessageKeyProvider <T> messageKeyProvider, T message)
{
Condition.Requires((object)message, "message").IsNotNull();
SendMessages(topic, messageKeyProvider, new[] { message });
}