/// <summary>
/// Get the next message off the Redis list, within a timeout
/// </summary>
/// <param name="timeoutInMilliseconds">The period to await a message</param>
/// <returns>The message read from the list</returns>
public Message Receive(int timeoutInMilliseconds)
{
_logger.Value.DebugFormat("RedisMessageConsumer: Preparing to retrieve next message from queue {0} with routing key {1} via exchange {2} on connection {3}", _queueName, _topic);
var message = new Message();
IRedisClient client = null;
try
{
client = GetClient();
EnsureConnection(client);
(string msgId, string rawMsg)redisMessage = ReadMessage(client, timeoutInMilliseconds);
message = new RedisMessageCreator().CreateMessage(redisMessage.rawMsg);
_inflight.Add(message.Id, redisMessage.msgId);
}
catch (TimeoutException te)
{
_logger.Value.ErrorFormat("Could not connect to Redis client within {0} milliseconds", timeoutInMilliseconds.ToString());
throw new ChannelFailureException(
string.Format("Could not connect to Redis client within {0} milliseconds", timeoutInMilliseconds.ToString()),
te
);
}
catch (RedisException re)
{
_logger.Value.ErrorFormat($"Could not connect to Redis: {re.Message}");
throw new ChannelFailureException(string.Format("Could not connect to Redis client - see inner exception for details"), re);
}
finally
{
client?.Dispose();
}
return(message);
}
/// <summary>
/// Get the next message off the Redis list, within a timeout
/// </summary>
/// <param name="timeoutInMilliseconds">The period to await a message</param>
/// <returns>The message read from the list</returns>
public Message[] Receive(int timeoutInMilliseconds)
{
_logger.Value.DebugFormat("RedisMessageConsumer: Preparing to retrieve next message from queue {0} with routing key {1} via exchange {2} on connection {3}", _queueName, Topic);
if (_inflight.Any())
{
_logger.Value.ErrorFormat("RedisMessageConsumer: Preparing to retrieve next message from queue {0}, but have unacked or not rejected message ", _queueName);
throw new ChannelFailureException(string.Format("Unacked message still in flight with id: {0}", _inflight.Keys.First().ToString()));
}
var message = new Message();
IRedisClient client = null;
try
{
client = GetClient();
EnsureConnection(client);
(string msgId, string rawMsg)redisMessage = ReadMessage(client, timeoutInMilliseconds);
message = new RedisMessageCreator().CreateMessage(redisMessage.rawMsg);
if (message.Header.MessageType != MessageType.MT_NONE && message.Header.MessageType != MessageType.MT_UNACCEPTABLE)
{
_inflight.Add(message.Id, redisMessage.msgId);
}
}
catch (TimeoutException te)
{
_logger.Value.ErrorFormat("Could not connect to Redis client within {0} milliseconds", timeoutInMilliseconds.ToString());
throw new ChannelFailureException(
string.Format("Could not connect to Redis client within {0} milliseconds", timeoutInMilliseconds.ToString()),
te
);
}
catch (RedisException re)
{
_logger.Value.ErrorFormat($"Could not connect to Redis: {re.Message}");
throw new ChannelFailureException(string.Format("Could not connect to Redis client - see inner exception for details"), re);
}
finally
{
client?.Dispose();
}
return(new Message[] { message });
}
