/// <summary>
/// Creates an event sender responsible for transmitting <see cref="EventData" /> to the
/// Event Hub, grouped together in batches. Depending on the <paramref name="senderOptions"/>
/// specified, the sender may be created to allow event data to be automatically routed to an available
/// partition or specific to a partition.
/// </summary>
///
/// <param name="senderOptions">The set of options to apply when creating the sender.</param>
///
/// <returns>An event sender configured in the requested manner.</returns>
///
/// <remarks>
/// Allowing automatic routing of partitions is recommended when:
/// <para>- The sending of events needs to be highly available.</para>
/// <para>- The event data should be evenly distributed among all available partitions.</para>
///
/// If no partition is specified, the following rules are used for automatically selecting one:
/// <para>1) Distribute the events equally amongst all available partitions using a round-robin approach.</para>
/// <para>2) If a partition becomes unavailable, the Event Hubs service will automatically detect it and forward the message to another available partition.</para>
/// </remarks>
///
public virtual EventSender CreateSender(SenderOptions senderOptions = default)
{
//TODO: If no options were reeived, create a new set. Otherwise, copy them.
//TODO: If options are missing values that the client should default, set them.
return(new EventSender(ClientOptions.ConnectionType, EventHubPath, senderOptions));
}
/// <summary>
/// Creates an event sender responsible for transmitting <see cref="EventData" /> to the
/// Event Hub, grouped together in batches. Depending on the <paramref name="senderOptions"/>
/// specified, the sender may be created to allow event data to be automatically routed to an available
/// partition or specific to a partition.
/// </summary>
///
/// <param name="senderOptions">The set of options to apply when creating the sender.</param>
///
/// <returns>An event sender configured in the requested manner.</returns>
///
/// <remarks>
/// Allowing automatic routing of partitions is recommended when:
/// <para>- The sending of events needs to be highly available.</para>
/// <para>- The event data should be evenly distributed among all available partitions.</para>
///
/// If no partition is specified, the following rules are used for automatically selecting one:
/// <para>1) Distribute the events equally amongst all available partitions using a round-robin approach.</para>
/// <para>2) If a partition becomes unavailable, the Event Hubs service will automatically detect it and forward the message to another available partition.</para>
/// </remarks>
///
public virtual EventSender CreateSender(SenderOptions senderOptions = default)
{
var options = senderOptions?.Clone() ?? new SenderOptions {
Retry = null, Timeout = null
};
options.Retry = options.Retry ?? ClientOptions.Retry.Clone();
options.Timeout = options.TimeoutOrDefault ?? ClientOptions.DefaultTimeout;
return(BuildEventSender(ClientOptions.ConnectionType, EventHubPath, options));
}
/// <summary>
/// Initializes a new instance of the <see cref="EventSender"/> class.
/// </summary>
///
/// <param name="connectionType">The type of connection used for communicating with the Event Hubs service.</param>
/// <param name="eventHubPath">The path of the Event Hub to which events will be sent.</param>
/// <param name="senderOptions">The set of options to use for this receiver.</param>
///
protected internal EventSender(ConnectionType connectionType,
string eventHubPath,
SenderOptions senderOptions)
{
Guard.ArgumentNotNullOrEmpty(nameof(eventHubPath), eventHubPath);
PartitionId = senderOptions?.PartitionId;
//TODO: Validate and clone the options (to avoid any changes on the options being carried over)
//TODO: Connection Type drives the contained receiver used for service operations. For example, an AmqpEventSender.
}
/// <summary>
/// Initializes a new instance of the <see cref="EventSender"/> class.
/// </summary>
///
/// <param name="connectionType">The type of connection used for communicating with the Event Hubs service.</param>
/// <param name="eventHubPath">The path of the Event Hub to which events will be sent.</param>
/// <param name="senderOptions">The set of options to use for this receiver.</param>
///
/// <remarks>
/// Because this is a non-public constructor, it is assumed that the <paramref name="senderOptions" /> passed are
/// owned by this instance and are safe from changes made by consumers. It is considered the responsibility of the
/// caller to ensure that any needed cloning of options is performed.
/// </remarks>
///
protected internal EventSender(ConnectionType connectionType,
string eventHubPath,
SenderOptions senderOptions)
{
Guard.ArgumentNotNullOrEmpty(nameof(eventHubPath), eventHubPath);
Guard.ArgumentNotNull(nameof(senderOptions), senderOptions);
PartitionId = senderOptions?.PartitionId;
Options = senderOptions;
//TODO: Connection Type drives the contained receiver used for service operations. For example, an AmqpEventSender.
}
/// <summary>
/// Builds an event sender instance using the provided options.
/// </summary>
///
/// <param name="connectionType">The type of connection being used for communication with the EventHubs servcie.</param>
/// <param name="eventHubPath">The path to a specific Event Hub.</param>
/// <param name="options">The set of options to use for the sender.</param>
///
/// <returns>The fully constructed sender.</returns>
///
protected virtual EventSender BuildEventSender(ConnectionType connectionType,
string eventHubPath,
SenderOptions options) =>
new EventSender(connectionType, eventHubPath, options);
/// <summary>
/// Builds an event sender instance using the provided options.
/// </summary>
///
/// <param name="connectionType">The type of connection being used for communication with the EventHubs servcie.</param>
/// <param name="eventHubPath">The path to a specific Event Hub.</param>
/// <param name="options">The set of options to use for the sender.</param>
///
/// <returns>The fully constructed sender.</returns>
///
internal virtual EventSender BuildEventSender(TransportType connectionType,
string eventHubPath,
SenderOptions options) =>
new EventSender(connectionType, eventHubPath, options);