private static IBasicProperties BuildProperties(IDictionary <string, object> headers, IChannelHost channelHost, byte?priority = 0, byte?deliveryMode = 2)
{
var props = channelHost.GetChannel().CreateBasicProperties();
props.DeliveryMode = deliveryMode ?? 2; // Default Persisted
props.Priority = priority ?? 0; // Default Priority
if (!props.IsHeadersPresent())
{
props.Headers = new Dictionary <string, object>();
}
if (headers?.Count > 0)
{
foreach (var kvp in headers)
{
if (kvp.Key.StartsWith(Utils.Constants.HeaderPrefix, StringComparison.OrdinalIgnoreCase))
{
props.Headers[kvp.Key] = kvp.Value;
}
}
}
// Non-optional Header.
props.Headers[Utils.Constants.HeaderForObjectType] = Utils.Constants.HeaderValueForMessage;
return(props);
}
private static IBasicProperties BuildProperties(Letter letter, IChannelHost channelHost, bool withHeaders)
{
var props = channelHost.GetChannel().CreateBasicProperties();
props.DeliveryMode = letter.Envelope.RoutingOptions.DeliveryMode;
props.ContentType = letter.Envelope.RoutingOptions.MessageType;
props.Priority = letter.Envelope.RoutingOptions.PriorityLevel;
if (!props.IsHeadersPresent())
{
props.Headers = new Dictionary <string, object>();
}
if (withHeaders && letter.LetterMetadata != null)
{
foreach (var kvp in letter.LetterMetadata?.CustomFields)
{
if (kvp.Key.StartsWith(Utils.Constants.HeaderPrefix, StringComparison.OrdinalIgnoreCase))
{
props.Headers[kvp.Key] = kvp.Value;
}
}
}
// Non-optional Header.
props.Headers[Utils.Constants.HeaderForObjectType] = Utils.Constants.HeaderValueForLetter;
return(props);
}
public static IBasicProperties CreateBasicProperties(
this IMessage message,
IChannelHost channelHost,
bool withOptionalHeaders,
IMetadata metadata)
{
var props = channelHost.GetChannel().CreateBasicProperties();
props.DeliveryMode = message.Envelope.RoutingOptions.DeliveryMode;
props.ContentType = message.Envelope.RoutingOptions.MessageType;
props.Priority = message.Envelope.RoutingOptions.PriorityLevel;
props.MessageId = message.MessageId ?? Guid.NewGuid().ToString();
if (!props.IsHeadersPresent())
{
props.Headers = new Dictionary <string, object>();
}
if (withOptionalHeaders && metadata != null)
{
foreach (var kvp in metadata?.CustomFields)
{
if (kvp.Key.StartsWith(Constants.HeaderPrefix, StringComparison.OrdinalIgnoreCase))
{
props.Headers[kvp.Key] = kvp.Value;
}
}
}
return(props);
}
private async Task <bool> StartConsumingAsync()
{
if (_shutdown)
{
return(false);
}
_logger.LogInformation(
LogMessages.Consumers.StartingConsumer,
ConsumerOptions.ConsumerName);
if (Options.FactoryOptions.EnableDispatchConsumersAsync)
{
if (_asyncConsumer != null)
{
_asyncConsumer.Received -= ReceiveHandlerAsync;
_asyncConsumer.Shutdown -= ConsumerShutdownAsync;
}
try
{
_asyncConsumer = CreateAsyncConsumer();
if (_asyncConsumer == null)
{
return(false);
}
_chanHost
.GetChannel()
.BasicConsume(
ConsumerOptions.QueueName,
ConsumerOptions.AutoAck ?? false,
ConsumerOptions.ConsumerName,
ConsumerOptions.NoLocal ?? false,
ConsumerOptions.Exclusive ?? false,
null,
_asyncConsumer);
}
catch (Exception ex)
{
_logger.LogError(ex, "Exception creating internal RabbitMQ consumer. Retrying...");
await Task.Delay(1000).ConfigureAwait(false);
await _chanHost.MakeChannelAsync().ConfigureAwait(false);
return(false);
}
}
else
{
if (_consumer != null)
{
_consumer.Received -= ReceiveHandler;
_consumer.Shutdown -= ConsumerShutdown;
}
try
{
_consumer = CreateConsumer();
if (_consumer == null)
{
return(false);
}
_chanHost
.GetChannel()
.BasicConsume(
ConsumerOptions.QueueName,
ConsumerOptions.AutoAck ?? false,
ConsumerOptions.ConsumerName,
ConsumerOptions.NoLocal ?? false,
ConsumerOptions.Exclusive ?? false,
null,
_consumer);
}
catch (Exception ex)
{
_logger.LogError(ex, "Exception creating internal RabbitMQ consumer. Retrying...");
await Task.Delay(1000).ConfigureAwait(false);
await _chanHost.MakeChannelAsync().ConfigureAwait(false);
return(false);
}
}
_logger.LogInformation(
LogMessages.Consumers.StartedConsumer,
ConsumerOptions.ConsumerName);
return(true);
}
private bool StartConsuming()
{
if (_shutdown)
{
return(false);
}
_logger.LogInformation(
LogMessages.Consumers.StartingConsumer,
ConsumerOptions.ConsumerName);
if (Options.FactoryOptions.EnableDispatchConsumersAsync)
{
if (_asyncConsumer != null)
{
_asyncConsumer.Received -= ReceiveHandlerAsync;
_asyncConsumer.Shutdown -= ConsumerShutdownAsync;
}
_asyncConsumer = CreateAsyncConsumer();
if (_asyncConsumer == null)
{
return(false);
}
_chanHost
.GetChannel()
.BasicConsume(
ConsumerOptions.QueueName,
ConsumerOptions.AutoAck ?? false,
ConsumerOptions.ConsumerName,
ConsumerOptions.NoLocal ?? false,
ConsumerOptions.Exclusive ?? false,
null,
_asyncConsumer);
}
else
{
if (_asyncConsumer != null)
{
_consumer.Received -= ReceiveHandler;
_consumer.Shutdown -= ConsumerShutdown;
}
_consumer = CreateConsumer();
if (_consumer == null)
{
return(false);
}
_chanHost
.GetChannel()
.BasicConsume(
ConsumerOptions.QueueName,
ConsumerOptions.AutoAck ?? false,
ConsumerOptions.ConsumerName,
ConsumerOptions.NoLocal ?? false,
ConsumerOptions.Exclusive ?? false,
null,
_consumer);
}
_logger.LogInformation(
LogMessages.Consumers.StartedConsumer,
ConsumerOptions.ConsumerName);
return(true);
}
