public StartConsumingStatus StartConsuming(IPersistentConnection connection, ICollection <Tuple <IQueue, Func <byte[], MessageProperties, MessageReceivedInfo, Task> > > queueConsumerPairs, IConsumerConfiguration configuration)
{
Preconditions.CheckNotNull(connection, nameof(connection));
Preconditions.CheckNotNull(queueConsumerPairs, nameof(queueConsumerPairs));
Preconditions.CheckNotNull(configuration, nameof(configuration));
IDictionary <string, object> arguments = new Dictionary <string, object>
{
{ "x-priority", configuration.Priority },
{ "x-cancel-on-ha-failover", configuration.CancelOnHaFailover || connectionConfiguration.CancelOnHaFailover }
};
try
{
Model = connection.CreateModel();
Model.BasicQos(0, configuration.PrefetchCount, true);
basicConsumers = new List <BasicConsumer>();
foreach (var p in queueConsumerPairs)
{
var queue = p.Item1;
var onMessage = p.Item2;
var consumerTag = conventions.ConsumerTagConvention();
try
{
var basicConsumers = new BasicConsumer(SingleBasicConsumerCancelled, consumerDispatcher, queue, eventBus, handlerRunner, onMessage, logger, Model);
Model.BasicConsume(
queue.Name, // queue
false, // noAck
consumerTag, // consumerTag
true,
configuration.IsExclusive,
arguments, // arguments
basicConsumers); // consumer
this.basicConsumers.Add(basicConsumers);
logger.InfoWrite("Declared Consumer. queue='{0}', consumer tag='{1}' prefetchcount={2} priority={3} x-cancel-on-ha-failover={4}",
queue.Name, consumerTag, configuration.PrefetchCount, configuration.Priority, configuration.CancelOnHaFailover);
}
catch (Exception ex)
{
logger.ErrorWrite("Consume failed. queue='{0}', consumer tag='{1}', message='{2}'",
queue.Name, consumerTag, ex.Message);
return(StartConsumingStatus.Failed);
}
}
}
catch (Exception exception)
{
logger.ErrorWrite("Consume failed. queue='{0}', message='{1}'",
string.Join(";", queueConsumerPairs.Select(x => x.Item1.Name)), exception.Message);
return(StartConsumingStatus.Failed);
}
return(StartConsumingStatus.Succeed);
}
public StartConsumingStatus StartConsuming(
IPersistentConnection connection,
IQueue queue,
Func <byte[], MessageProperties, MessageReceivedInfo, Task> onMessage,
IConsumerConfiguration configuration
)
{
Preconditions.CheckNotNull(connection, "connection");
Preconditions.CheckNotNull(queue, "queue");
Preconditions.CheckNotNull(onMessage, "onMessage");
Preconditions.CheckNotNull(configuration, "configuration");
var consumerTag = conventions.ConsumerTagConvention();
IDictionary <string, object> arguments = new Dictionary <string, object>
{
{ "x-priority", configuration.Priority },
{ "x-cancel-on-ha-failover", configuration.CancelOnHaFailover || connectionConfiguration.CancelOnHaFailover }
};
try
{
Model = connection.CreateModel();
var basicConsumers = new BasicConsumer(SingleBasicConsumerCancelled, consumerDispatcher, queue, eventBus, handlerRunner, onMessage, logger, Model);
this.basicConsumers = new[] { new BasicConsumer(SingleBasicConsumerCancelled, consumerDispatcher, queue, eventBus, handlerRunner, onMessage, logger, Model) };
Model.BasicQos(0, configuration.PrefetchCount, false);
Model.BasicConsume(
queue.Name, // queue
false, // noAck
consumerTag, // consumerTag
true,
configuration.IsExclusive,
arguments, // arguments
basicConsumers); // consumer
logger.InfoWrite("Declared Consumer. queue='{0}', consumer tag='{1}' prefetchcount={2} priority={3} x-cancel-on-ha-failover={4}",
queue.Name, consumerTag, configuration.PrefetchCount, configuration.Priority, configuration.CancelOnHaFailover);
}
catch (Exception exception)
{
logger.ErrorWrite("Consume failed. queue='{0}', consumer tag='{1}', message='{2}'",
queue.Name, consumerTag, exception.Message);
return(StartConsumingStatus.Failed);
}
return(StartConsumingStatus.Succeed);
}
private void SingleBasicConsumerCancelled(BasicConsumer consumer)
{
if (cancelledConsumer == null)
{
cancelledConsumer = new HashSet <BasicConsumer>();
}
cancelledConsumer.Add(consumer);
if (cancelledConsumer.Count == basicConsumers.Count())
{
cancelledConsumer = null;
Cancelled?.Invoke(this);
}
}