protected virtual async Task <IList <IndexDocument> > GetDocumentsAsync(IList <string> documentIds, IIndexDocumentBuilder primaryDocumentBuilder, IEnumerable <IIndexDocumentBuilder> secondaryDocumentBuilders, ICancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
var primaryDocuments = (await primaryDocumentBuilder.GetDocumentsAsync(documentIds))
?.Where(d => d != null)
.ToList();
if (primaryDocuments?.Any() == true)
{
if (secondaryDocumentBuilders != null)
{
var primaryDocumentIds = primaryDocuments.Select(d => d.Id).ToArray();
var secondaryDocuments = await GetSecondaryDocumentsAsync(secondaryDocumentBuilders, primaryDocumentIds, cancellationToken);
MergeDocuments(primaryDocuments, secondaryDocuments);
}
// Add system fields
foreach (var document in primaryDocuments)
{
document.Add(new IndexDocumentField(KnownDocumentFields.IndexationDate, DateTime.UtcNow)
{
IsRetrievable = true,
IsFilterable = true
});
}
}
return(primaryDocuments);
}