/// <summary>
/// Initializes a new instance of the <see cref="PooledProducer" /> class.
/// </summary>
///
/// <param name="transportProducer">An abstracted Event Hub transport-specific producer that is associated with the Event Hub gateway or a specific partition.</param>
/// <param name="cleanUp">The function responsible of cleaning up the resources in use.</param>
///
public PooledProducer(TransportProducer transportProducer,
Func <TransportProducer, Task> cleanUp = default)
{
Argument.AssertNotNull(transportProducer, nameof(transportProducer));
TransportProducer = transportProducer;
CleanUp = cleanUp;
}
/// <summary>
/// Initializes a new instance of the <see cref="TransportProducerPool" /> class.
/// </summary>
///
/// <param name="transportProducerFactory">A factory method for spawning a <see cref="TransportProducer" /> for a given partition.</param>
/// <param name="pool">The pool of <see cref="PoolItem" /> that is going to be used to store the partition specific <see cref="TransportProducer" />.</param>
/// <param name="performExpirationPeriod">The period after which <see cref="CreateExpirationTimerCallback" /> is run. Overrides <see cref="DefaultPerformExpirationPeriod" />.</param>
/// <param name="eventHubProducer">An abstracted Event Hub transport-specific producer that is associated with the Event Hub gateway rather than a specific partition.</param>
///
public TransportProducerPool(Func <string, TransportProducer> transportProducerFactory,
ConcurrentDictionary <string, PoolItem> pool = default,
TimeSpan?performExpirationPeriod = default,
TransportProducer eventHubProducer = default)
{
performExpirationPeriod ??= DefaultPerformExpirationPeriod;
Pool = pool ?? new ConcurrentDictionary <string, PoolItem>();
EventHubProducer = eventHubProducer ?? transportProducerFactory(null);
TransportProducerFactory = transportProducerFactory;
ExpirationTimer = new Timer(CreateExpirationTimerCallback(), null, performExpirationPeriod.Value, performExpirationPeriod.Value);
}
/// <summary>
/// Initializes a new instance of the <see cref="TransportProducerPool" /> class.
/// </summary>
///
/// <param name="connection">The <see cref="EventHubConnection" /> connection to use for communication with the Event Hubs service.</param>
/// <param name="retryPolicy">The policy to use for determining retry behavior for when an operation fails.</param>
/// <param name="pool">The pool of <see cref="PoolItem" /> that is going to be used to store the partition specific <see cref="TransportProducer" />.</param>
/// <param name="performExpirationPeriod">The period after which <see cref="CreateExpirationTimerCallback" /> is run. Overrides <see cref="DefaultPerformExpirationPeriod" />.</param>
/// <param name="eventHubProducer">An abstracted Event Hub transport-specific producer that is associated with the Event Hub gateway rather than a specific partition.</param>
///
public TransportProducerPool(EventHubConnection connection,
EventHubsRetryPolicy retryPolicy,
ConcurrentDictionary <string, PoolItem> pool = default,
TimeSpan?performExpirationPeriod = default,
TransportProducer eventHubProducer = default)
{
Connection = connection;
RetryPolicy = retryPolicy;
Pool = pool ?? new ConcurrentDictionary <string, PoolItem>();
performExpirationPeriod ??= DefaultPerformExpirationPeriod;
EventHubProducer = eventHubProducer ?? connection.CreateTransportProducer(null, retryPolicy);
ExpirationTimer = new Timer(CreateExpirationTimerCallback(),
null,
performExpirationPeriod.Value,
performExpirationPeriod.Value);
}
/// <summary>
/// Initializes a new instance of the <see cref="PoolItem" /> class with a default timespan of <see cref="DefaultRemoveAfterDuration" />.
/// </summary>
///
/// <param name="partitionId">The unique identifier of a partition associated with the Event Hub.</param>
/// <param name="partitionProducer">An Event Hub transport-specific producer specific to a given partition.</param>
/// <param name="removeAfterDuration">The interval after which a <see cref="PoolItem" /> will become eligible for eviction. Overrides <see cref="DefaultRemoveAfterDuration" />.</param>
/// <param name="removeAfter">The UTC date and time when a <see cref="PoolItem" /> will become eligible for eviction.</param>
///
public PoolItem(string partitionId,
TransportProducer partitionProducer,
TimeSpan?removeAfterDuration = default,
DateTimeOffset?removeAfter = default)
{
Argument.AssertNotNullOrEmpty(partitionId, nameof(partitionId));
Argument.AssertNotNull(partitionProducer, nameof(partitionProducer));
PartitionProducer = partitionProducer;
PartitionId = partitionId;
if (removeAfter == default)
{
ExtendRemoveAfter(removeAfterDuration);
}
else
{
RemoveAfter = removeAfter.Value;
}
}