/// <summary>
/// Creates a new Composer, which can be used to compose a task chain, which can be added to an
/// existing composer as a single task. Note that this executes on the task chain, and not immediately.
/// </summary>
/// <typeparam name="T">The payload type</typeparam>
/// <param name="composer">The existing composer</param>
/// <param name="callback"></param>
/// <returns></returns>
public static Composer <T> ComposeTask <T>(this Composer <T> composer, Action <Composer> callback)
{
composer.ExecuteAsync(async(payload, cancellationToken) =>
{
await ComposerFactory.Compose(callback, composer.CancellationToken);
return(composer.Payload);
});
return(composer);
}
/// <summary>
/// Creates a new Composer, which can be used to compose a task chain, which can be added to an
/// existing composer as a single task. Note that this executes on the task chain, and not immediately.
/// </summary>
/// <typeparam name="T">The payload type</typeparam>
/// <typeparam name="TPayload">The child payload type</typeparam>
/// <param name="composer">The existing composer</param>
/// <param name="payload">The child payload</param>
/// <param name="callback"></param>
/// <returns></returns>
public static Composer <T> ComposeTask <T, TPayload>(this Composer <T> composer, Func <T, TPayload> payload,
Action <Composer <TPayload> > callback)
{
composer.ExecuteAsync(async(p, cancellationToken) =>
{
TPayload taskPayload = payload(p);
await ComposerFactory.Compose(taskPayload, callback, composer.CancellationToken);
return(composer.Payload);
});
return(composer);
}
static void Attempt(Composer composer, TimeSpan interval, Action <Composer> callback, CancellationToken repeatCancellationToken)
{
composer.ComposeTask(callback);
composer.ExecuteAsync(token =>
{
if (repeatCancellationToken.IsCancellationRequested)
{
return(TaskUtil.Completed());
}
return(ComposerFactory.Compose(x =>
{
x.Delay(interval);
Attempt(x, interval, callback, repeatCancellationToken);
}, token));
}, ExecuteOptions.RunSynchronously);
}
/// <summary>
/// Creates a new Composer, which can be used to compose a task chain, which can be added to an
/// existing composer as a single task. Note that this executes on the task chain, and not immediately.
/// </summary>
/// <param name="composer">The existing composer</param>
/// <param name="callback"></param>
/// <returns></returns>
public static Composer ComposeTask(this Composer composer, Action <Composer> callback)
{
composer.ExecuteAsync(cancellationToken => ComposerFactory.Compose(callback, composer.CancellationToken));
return(composer);
}
/// <summary>
/// Creates a new Composer, which can be used to compose a task chain, which can be added to an
/// existing composer as a single task. Note that this executes on the task chain, and not immediately.
/// </summary>
/// <typeparam name="T">The payload type</typeparam>
/// <param name="composer">The existing composer</param>
/// <param name="callback"></param>
/// <returns></returns>
public static Composer <T> ComposeTask <T>(this Composer <T> composer, Action <Composer <T> > callback)
{
composer.ExecuteAsync((payload, cancellationToken) => ComposerFactory.Compose(payload, callback, composer.CancellationToken));
return(composer);
}
static async Task <T> ComposeCompensationTask <T>(T payload, Action <Composer> callback, CancellationToken cancellationToken)
{
await ComposerFactory.Compose(callback, cancellationToken);
return(payload);
}
/// <summary>
/// Creates a new Composer, which can be used to compose a task chain, which can be added to an
/// existing composer as a single task. Note that this executes on the task chain, and not immediately.
/// </summary>
/// <param name="compensation"></param>
/// <param name="callback"></param>
/// <returns></returns>
public static CompensationResult <T> ComposeTask <T>(this Compensation <T> compensation, Action <Composer <T> > callback)
{
return(compensation.Task(ComposerFactory.Compose(compensation.Payload, callback, compensation.CancellationToken)));
}
/// <summary>
/// Creates a new Composer, which can be used to compose a task chain, which can be added to an
/// existing composer as a single task. Note that this executes on the task chain, and not immediately.
/// </summary>
/// <param name="compensation"></param>
/// <param name="callback"></param>
/// <returns></returns>
public static CompensationResult ComposeTask(this Compensation compensation, Action <Composer> callback)
{
return(compensation.Task(ComposerFactory.Compose(callback, compensation.CancellationToken)));
}