public SendSettings GetSendSettings(Uri address)
{
var name = address.AbsolutePath.Substring(1);
string[] pathSegments = name.Split('/');
if (pathSegments.Length == 2)
{
name = pathSegments[1];
}
if (name == "*")
{
throw new ArgumentException("Cannot send to a dynamic address");
}
EntityNameValidator.ThrowIfInvalidEntityName(name);
var isTemporary = address.Query.GetValueFromQueryString("temporary", false);
var durable = address.Query.GetValueFromQueryString("durable", !isTemporary);
var autoDelete = address.Query.GetValueFromQueryString("autodelete", isTemporary);
var exchangeType = address.Query.GetValueFromQueryString("type") ?? ExchangeTypeSelector.DefaultExchangeType;
var settings = new RabbitMqSendSettings(name, exchangeType, durable, autoDelete);
var bindToQueue = address.Query.GetValueFromQueryString("bind", false);
if (bindToQueue)
{
var queueName = WebUtility.UrlDecode(address.Query.GetValueFromQueryString("queue"));
settings.BindToQueue(queueName);
}
var delayedType = address.Query.GetValueFromQueryString("delayedType");
if (!string.IsNullOrWhiteSpace(delayedType))
{
settings.SetExchangeArgument("x-delayed-type", delayedType);
}
var bindExchange = address.Query.GetValueFromQueryString("bindexchange");
if (!string.IsNullOrWhiteSpace(bindExchange))
{
settings.BindToExchange(bindExchange);
}
var alternateExchange = address.Query.GetValueFromQueryString("alternateexchange");
if (!string.IsNullOrWhiteSpace(alternateExchange))
{
settings.SetExchangeArgument("alternate-exchange", alternateExchange);
}
return(settings);
}
/// <summary>
/// Return the send settings for the address
/// </summary>
/// <param name="address"></param>
/// <returns></returns>
public static SendSettings GetSendSettings(this Uri address)
{
if (string.Compare("rabbitmq", address.Scheme, StringComparison.OrdinalIgnoreCase) != 0)
{
throw new RabbitMqAddressException("The invalid scheme was specified: " + address.Scheme);
}
string name = address.AbsolutePath.Substring(1);
string[] pathSegments = name.Split('/');
if (pathSegments.Length == 2)
{
name = pathSegments[1];
}
if (name == "*")
{
throw new ArgumentException("Cannot send to a dynamic address");
}
VerifyQueueOrExchangeNameIsLegal(name);
bool isTemporary = address.Query.GetValueFromQueryString("temporary", false);
bool durable = address.Query.GetValueFromQueryString("durable", !isTemporary);
bool autoDelete = address.Query.GetValueFromQueryString("autodelete", isTemporary);
string exchangeType = address.Query.GetValueFromQueryString("type") ?? ExchangeType.Fanout;
var settings = new RabbitMqSendSettings(name, exchangeType, durable, autoDelete);
bool bindToQueue = address.Query.GetValueFromQueryString("bind", false);
if (bindToQueue)
{
string queueName = WebUtility.UrlDecode(address.Query.GetValueFromQueryString("queue"));
settings.BindToQueue(queueName);
}
string delayedType = address.Query.GetValueFromQueryString("delayedType");
if (!string.IsNullOrWhiteSpace(delayedType))
{
settings.SetExchangeArgument("x-delayed-type", delayedType);
}
string bindExchange = address.Query.GetValueFromQueryString("bindexchange");
if (!string.IsNullOrWhiteSpace(bindExchange))
{
settings.BindToExchange(bindExchange);
}
return(settings);
}
Uri GetDelayExchangeAddress(ReceiveSettings receiveSettings)
{
string delayExchangeName = receiveSettings.QueueName + "_delay";
var sendSettings = new RabbitMqSendSettings(delayExchangeName, "x-delayed-message", receiveSettings.Durable, receiveSettings.AutoDelete);
sendSettings.SetExchangeArgument("x-delayed-type", receiveSettings.ExchangeType);
sendSettings.BindToQueue(receiveSettings.QueueName);
var modelContext = _context.ReceiveContext.GetPayload <ModelContext>();
return(modelContext.ConnectionContext.HostSettings.GetSendAddress(sendSettings));
}
Task <ISendEndpoint> GetSchedulerEndpoint(Uri destinationAddress)
{
var destinationSettings = _topology.GetSendSettings(destinationAddress);
var sendSettings = new RabbitMqSendSettings(destinationSettings.ExchangeName + "_delay", "x-delayed-message", destinationSettings.Durable,
destinationSettings.AutoDelete);
sendSettings.SetExchangeArgument("x-delayed-type", destinationSettings.ExchangeType);
sendSettings.BindToExchange(destinationSettings.ExchangeName);
var delayExchangeAddress = sendSettings.GetSendAddress(_hostAddress);
return(_sendEndpointProvider.GetSendEndpoint(delayExchangeAddress));
}
async Task MessageRedeliveryContext.ScheduleRedelivery(TimeSpan delay)
{
var receiveSettings = _context.ReceiveContext.GetPayload <ReceiveSettings>();
string delayExchangeName = receiveSettings.QueueName + "_delay";
var sendSettings = new RabbitMqSendSettings(delayExchangeName, "x-delayed-message", receiveSettings.Durable, receiveSettings.AutoDelete);
sendSettings.SetExchangeArgument("x-delayed-type", receiveSettings.ExchangeType);
sendSettings.BindToQueue(receiveSettings.QueueName);
var modelContext = _context.ReceiveContext.GetPayload <ModelContext>();
Uri delayExchangeAddress = modelContext.ConnectionContext.HostSettings.GetSendAddress(sendSettings);
ISendEndpoint delayEndpoint = await _context.GetSendEndpoint(delayExchangeAddress);
await delayEndpoint.Send(_context.Message, _context.CreateCopyContextPipe((x, y) => UpdateDeliveryContext(x, y, delay)));
}
async Task <ScheduledMessage <T> > ScheduleSend <T>(Uri destinationAddress, DateTime scheduledTime, T message, IPipe <SendContext <T> > pipe, CancellationToken cancellationToken)
where T : class
{
var destinationSettings = _topology.GetSendSettings(destinationAddress);
var sendSettings = new RabbitMqSendSettings(destinationSettings.ExchangeName + "_delay", "x-delayed-message", destinationSettings.Durable,
destinationSettings.AutoDelete);
sendSettings.SetExchangeArgument("x-delayed-type", destinationSettings.ExchangeType);
sendSettings.BindToExchange(destinationSettings.ExchangeName);
var delayExchangeAddress = sendSettings.GetSendAddress(_hostAddress);
var delayEndpoint = await _sendEndpointProvider.GetSendEndpoint(delayExchangeAddress).ConfigureAwait(false);
var messageId = NewId.NextGuid();
IPipe <SendContext <T> > delayPipe = Pipe.ExecuteAsync <SendContext <T> >(async context =>
{
context.MessageId = messageId;
var rabbitSendContext = context.GetPayload <RabbitMqSendContext>();
var delay = Math.Max(0,
(scheduledTime.Kind == DateTimeKind.Local ? (scheduledTime - DateTime.Now) : (scheduledTime - DateTime.UtcNow)).TotalMilliseconds);
if (delay > 0)
{
rabbitSendContext.SetTransportHeader("x-delay", (long)delay);
}
await pipe.Send(context).ConfigureAwait(false);
});
await delayEndpoint.Send(message, delayPipe, cancellationToken).ConfigureAwait(false);
return(new ScheduledMessageHandle <T>(messageId, scheduledTime, destinationAddress, message));
}
/// <summary>
/// Return the send settings for the address
/// </summary>
/// <param name="address"></param>
/// <returns></returns>
public static SendSettings GetSendSettings(this Uri address)
{
if (string.Compare("rabbitmq", address.Scheme, StringComparison.OrdinalIgnoreCase) != 0)
throw new RabbitMqAddressException("The invalid scheme was specified: " + address.Scheme);
string name = address.AbsolutePath.Substring(1);
string[] pathSegments = name.Split('/');
if (pathSegments.Length == 2)
name = pathSegments[1];
if (name == "*")
throw new ArgumentException("Cannot send to a dynamic address");
VerifyQueueOrExchangeNameIsLegal(name);
bool isTemporary = address.Query.GetValueFromQueryString("temporary", false);
bool durable = address.Query.GetValueFromQueryString("durable", !isTemporary);
bool autoDelete = address.Query.GetValueFromQueryString("autodelete", isTemporary);
string exchangeType = address.Query.GetValueFromQueryString("type") ?? ExchangeType.Fanout;
var settings = new RabbitMqSendSettings(name, exchangeType, durable, autoDelete);
bool bindToQueue = address.Query.GetValueFromQueryString("bind", false);
if (bindToQueue)
{
string queueName = WebUtility.UrlDecode(address.Query.GetValueFromQueryString("queue"));
settings.BindToQueue(queueName);
}
string delayedType = address.Query.GetValueFromQueryString("delayedType");
if (!string.IsNullOrWhiteSpace(delayedType))
settings.SetExchangeArgument("x-delayed-type", delayedType);
string bindExchange = address.Query.GetValueFromQueryString("bindexchange");
if (!string.IsNullOrWhiteSpace(bindExchange))
settings.BindToExchange(bindExchange);
return settings;
}
