/// <summary>
/// Constructor
/// </summary>
/// <param name="connectionProvider">A <see cref="IDbConnection"/> to obtain a database connection</param>
/// <param name="inputQueueName">Name of the queue this transport is servicing</param>
/// <param name="rebusLoggerFactory">A <seealso cref="IRebusLoggerFactory"/> for building loggers</param>
/// <param name="asyncTaskFactory">A <seealso cref="IAsyncTaskFactory"/> for creating periodic tasks</param>
/// <param name="rebusTime">A <seealso cref="IRebusTime"/> to provide the current time</param>
/// <param name="leaseInterval">Interval of time messages are leased for</param>
/// <param name="leaseTolerance">Buffer to allow lease overruns by</param>
/// <param name="leasedByFactory">Factory for generating a string which identifies who has leased a message (eg. A hostname)</param>
/// <param name="options">Additional options</param>
public SqlServerLeaseTransport(
IDbConnectionProvider connectionProvider,
string inputQueueName,
IRebusLoggerFactory rebusLoggerFactory,
IAsyncTaskFactory asyncTaskFactory,
IRebusTime rebusTime,
TimeSpan leaseInterval,
TimeSpan?leaseTolerance,
Func <string> leasedByFactory,
SqlServerLeaseTransportOptions options
) : base(connectionProvider, inputQueueName, rebusLoggerFactory, asyncTaskFactory, rebusTime, options)
{
_leasedByFactory = leasedByFactory;
_leaseInterval = leaseInterval;
_leaseTolerance = leaseTolerance ?? TimeSpan.FromSeconds(15);
var automaticLeaseRenewalInterval = options.LeaseAutoRenewInterval;
if (!automaticLeaseRenewalInterval.HasValue)
{
_automaticLeaseRenewal = false;
}
else
{
_automaticLeaseRenewal = true;
_automaticLeaseRenewalInterval = automaticLeaseRenewalInterval.Value;
}
}
/// <summary>
/// Configures Rebus to use SQL Server as its transport in "one-way client mode" (i.e. as a send only endpoint). Unlike the <c>UseSqlServer</c> calls the leased version of the SQL
/// Server transport does not hold a transaction open for the entire duration of the message handling. Instead it marks a
/// message as being "leased" for a period of time. If the lease has expired then a worker is permitted to acquire the that
/// message again and try reprocessing
/// </summary>
/// <param name="configurer">Static to extend</param>
/// <param name="transportOptions">Options controlling the transport setup</param>
public static SqlServerLeaseTransportOptions UseSqlServerInLeaseModeAsOneWayClient(this StandardConfigurer <ITransport> configurer, SqlServerLeaseTransportOptions transportOptions)
{
return(Configure(
configurer,
(context, provider, inputQueue) =>
{
if (transportOptions.LeasedByFactory == null)
{
transportOptions.SetLeasedByFactory(() => Environment.MachineName);
}
return new SqlServerLeaseTransport(
provider,
transportOptions.InputQueueName,
context.Get <IRebusLoggerFactory>(),
context.Get <IAsyncTaskFactory>(),
context.Get <IRebusTime>(),
transportOptions.LeaseInterval ?? SqlServerLeaseTransport.DefaultLeaseTime,
transportOptions.LeaseTolerance ?? SqlServerLeaseTransport.DefaultLeaseTolerance,
transportOptions.LeasedByFactory,
transportOptions
);
},
transportOptions
)
.AsOneWayClient());
}
