/// <summary>
/// Enrich the list of resources.
/// </summary>
/// <typeparam name="TResource">The resource type to enrich.</typeparam>
/// <param name="context">The enrichment context.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>A task which asynchronously performs the operation.</returns>
async Task EnrichAsync <TResource>(EnrichmentContext <TResource> context, CancellationToken cancellationToken)
{
var relationship = (IRelationship)context.MemberPath.Member;
var @delegate = GetOrCreateEnrichmentDelegate <TResource>(relationship);
await @delegate(context, cancellationToken);
}
/// <summary>
/// Perform the enrichment for the given source and it's children.
/// </summary>
/// <typeparam name="TSource">The resource type to create the enricher for.</typeparam>
/// <typeparam name="TDestination">The resource type on the other end of the relationship that is being enriched from.</typeparam>
/// <param name="context">The enrichment context.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>A task which asynchronously performs the operation.</returns>
async Task EnrichAsync <TSource, TDestination>(
EnrichmentContext <TSource> context,
CancellationToken cancellationToken)
{
var enricher = _resourceEnricherFactory.CreateEnricher <TSource, TDestination>((IRelationship)context.MemberPath.Member, context.Database);
var destination = await enricher.EnrichAsync(context.Resources, cancellationToken);
await EnrichAsync(context.Database, destination, context.MemberPath.Children, cancellationToken);
}
/// <summary>
/// Enrich the list of resources.
/// </summary>
/// <typeparam name="TResource">The resource type to enrich.</typeparam>
/// <param name="database">The database to perform the enrichment within.</param>
/// <param name="resources">The list of resources to enrich.</param>
/// <param name="memberPaths">The list of member access paths that define what to enrich.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>A task which asynchronously performs the operation.</returns>
public async Task EnrichAsync <TResource>(
IDatabase database,
IReadOnlyList <TResource> resources,
IReadOnlyList <MemberPath> memberPaths,
CancellationToken cancellationToken = default(CancellationToken))
{
foreach (var memberPath in memberPaths.Where(m => m.Member is IRelationship))
{
var context = new EnrichmentContext <TResource>(database, resources, memberPath);
await EnrichAsync(context, cancellationToken);
}
}
