public DelayedMessageHandler(DelayedMessageTable table, SqlConnectionFactory connectionFactory, TimeSpan interval, int batchSize)
{
this.table = table;
this.connectionFactory = connectionFactory;
this.interval = interval;
this.batchSize = batchSize;
}
public DueDelayedMessageProcessor(DelayedMessageTable table, SqlConnectionFactory connectionFactory, TimeSpan interval, int batchSize)
{
this.table = table;
this.connectionFactory = connectionFactory;
this.interval = interval;
this.batchSize = batchSize;
message = $"Scheduling next attempt to move matured delayed messages to input queue in {interval}";
}
public DelayedDeliveryTableBasedQueueOperationsReader(DelayedMessageTable delayedMessageTable, ITableBasedQueueOperationsReader immediateDeliveryQueueOperationsReader)
{
this.delayedMessageTable = delayedMessageTable;
this.immediateDeliveryQueueOperationsReader = immediateDeliveryQueueOperationsReader;
}
public override TransportReceiveInfrastructure ConfigureReceiveInfrastructure()
{
if (!settings.TryGet(out SqlScopeOptions scopeOptions))
{
scopeOptions = new SqlScopeOptions();
}
settings.TryGet(out TransportTransactionMode transactionMode);
diagnostics.Add("NServiceBus.Transport.SqlServer.Transactions", new
{
TransactionMode = transactionMode,
scopeOptions.TransactionOptions.IsolationLevel,
scopeOptions.TransactionOptions.Timeout
});
if (!settings.TryGet(SettingsKeys.TimeToWaitBeforeTriggering, out TimeSpan waitTimeCircuitBreaker))
{
waitTimeCircuitBreaker = TimeSpan.FromSeconds(30);
}
diagnostics.Add("NServiceBus.Transport.SqlServer.CircuitBreaker", new
{
TimeToWaitBeforeTriggering = waitTimeCircuitBreaker
});
if (!settings.TryGet(out QueuePeekerOptions queuePeekerOptions))
{
queuePeekerOptions = new QueuePeekerOptions();
}
var createMessageBodyComputedColumn = settings.GetOrDefault <bool>(SettingsKeys.CreateMessageBodyComputedColumn);
Func <TransportTransactionMode, ReceiveStrategy> receiveStrategyFactory =
guarantee => SelectReceiveStrategy(guarantee, scopeOptions.TransactionOptions, connectionFactory);
var queuePurger = new QueuePurger(connectionFactory);
var queuePeeker = new QueuePeeker(connectionFactory, queuePeekerOptions);
var expiredMessagesPurger = CreateExpiredMessagesPurger();
var schemaVerification = new SchemaInspector(queue => connectionFactory.OpenNewConnection());
Func <string, TableBasedQueue> queueFactory = queueName => new TableBasedQueue(addressTranslator.Parse(queueName).QualifiedTableName, queueName);
//Create delayed delivery infrastructure
CanonicalQueueAddress delayedQueueCanonicalAddress = null;
if (false == settings.GetOrDefault <bool>(SettingsKeys.DisableDelayedDelivery))
{
var delayedDeliverySettings = settings.GetOrDefault <DelayedDeliverySettings>();
settings.AddStartupDiagnosticsSection("NServiceBus.Transport.SqlServer.DelayedDelivery", new
{
Native = true,
delayedDeliverySettings.Suffix,
delayedDeliverySettings.Interval,
BatchSize = delayedDeliverySettings.MatureBatchSize,
TimoutManager = delayedDeliverySettings.EnableMigrationMode ? "enabled" : "disabled"
});
delayedQueueCanonicalAddress = GetDelayedTableAddress(delayedDeliverySettings);
var inputQueueTable = addressTranslator.Parse(ToTransportAddress(logicalAddress())).QualifiedTableName;
var delayedMessageTable = new DelayedMessageTable(delayedQueueCanonicalAddress.QualifiedTableName, inputQueueTable);
//Allows dispatcher to store messages in the delayed store
delayedMessageStore = delayedMessageTable;
dueDelayedMessageProcessor = new DueDelayedMessageProcessor(delayedMessageTable, connectionFactory, delayedDeliverySettings.Interval, delayedDeliverySettings.MatureBatchSize);
}
return(new TransportReceiveInfrastructure(
() => new MessagePump(receiveStrategyFactory, queueFactory, queuePurger, expiredMessagesPurger, queuePeeker, schemaVerification, waitTimeCircuitBreaker),
() => new QueueCreator(connectionFactory, addressTranslator, delayedQueueCanonicalAddress, createMessageBodyComputedColumn),
() => CheckForAmbientTransactionEnlistmentSupport(scopeOptions.TransactionOptions)));
}
