protected override async Task <IEnumerable <IDocument> > ExecuteInputAsync(IDocument input, IExecutionContext context)
{
IEnumerable <IEnumerable <string> > records;
using (Stream stream = input.GetContentStream())
{
records = ExcelFile.GetAllRecords(stream);
}
using (Stream contentStream = await context.GetContentStreamAsync())
{
CsvFile.WriteAllRecords(records, contentStream);
return(input.Clone(context.GetContentProvider(contentStream, MediaTypes.Get(".csv"))).Yield());
}
}
/// <inheritdoc />
protected override async Task <IEnumerable <IDocument> > ExecuteContextAsync(IExecutionContext context)
{
ILunrIndexItem[] searchIndexItems =
await context.Inputs
.ToAsyncEnumerable()
.SelectAwait(async x => await _searchIndexItem.GetValueAsync(x, context))
.Where(x => !string.IsNullOrEmpty(x?.Title) && !string.IsNullOrEmpty(x.Content))
.ToArrayAsync();
if (searchIndexItems.Length == 0)
{
context.LogWarning("It's not possible to build the search index because no documents contain the necessary metadata.");
return(Array.Empty <IDocument>());
}
string[] stopwords = await GetStopwordsAsync(context);
StringBuilder scriptBuilder = BuildScript(searchIndexItems, stopwords, context);
string script = _script(scriptBuilder, context);
return(context.CreateDocument(_destination, await context.GetContentProviderAsync(script, MediaTypes.Get(".js"))).Yield());
}