internal void CommitCallback(IntPtr rk,
ErrorCode err,
/* rd_kafka_topic_partition_list_t * */ IntPtr offsets,
IntPtr opaque)
{
OnOffsetCommit?.Invoke(this, new OffsetCommitArgs()
{
Error = err,
Offsets = SafeKafkaHandle.GetTopicPartitionOffsetList(offsets)
});
}
public Consumer(
IEnumerable <KeyValuePair <string, object> > config,
IDeserializer <TKey> keyDeserializer,
IDeserializer <TValue> valueDeserializer)
{
KeyDeserializer = keyDeserializer;
ValueDeserializer = valueDeserializer;
// TODO: allow deserializers to be set in the producer config IEnumerable<KeyValuePair<string, object>>.
if (KeyDeserializer == null)
{
if (typeof(TKey) != typeof(Null))
{
throw new ArgumentNullException("Key deserializer must be specified.");
}
// TKey == Null -> cast is always valid.
KeyDeserializer = (IDeserializer <TKey>) new NullDeserializer();
}
if (ValueDeserializer == null)
{
if (typeof(TValue) != typeof(Null))
{
throw new ArgumentNullException("Value deserializer must be specified.");
}
// TValue == Null -> cast is always valid.
ValueDeserializer = (IDeserializer <TValue>) new NullDeserializer();
}
consumer = new Consumer(config);
consumer.OnLog += (sender, e) => OnLog?.Invoke(sender, e);
consumer.OnError += (sender, e) => OnError?.Invoke(sender, e);
consumer.OnStatistics += (sender, e) => OnStatistics?.Invoke(sender, e);
consumer.OnPartitionsAssigned += (sender, e) => OnPartitionsAssigned?.Invoke(sender, e);
consumer.OnPartitionsRevoked += (sender, e) => OnPartitionsRevoked?.Invoke(sender, e);
consumer.OnOffsetCommit += (sender, e) => OnOffsetCommit?.Invoke(sender, e);
// TODO: bypass this.consumer for this event to optimize perf.
consumer.OnMessage += (sender, e) => OnMessage?.Invoke(sender,
new Message <TKey, TValue> (
e.Topic,
e.Partition,
e.Offset,
KeyDeserializer.Deserialize(e.Key),
ValueDeserializer.Deserialize(e.Value),
e.Timestamp,
e.Error
)
);
consumer.OnPartitionEOF += (sender, e) => OnPartitionEOF?.Invoke(sender, e);
}