private async void buttonCreateIndex_ClickAsync(object sender, RoutedEventArgs e)
{
textBox.Text = string.Empty;
_index = await Lunr.Index.Build(async builder =>
{
builder
.AddField("id")
.AddField("body")
.AddField("title")
.AddField("author");
var doc = new Lunr.Document
{
{ "id", "1" },
{ "title", "Twelfth-Night" },
{ "body", "If music be the food of love, play on: Give me excess of it…" },
{ "author", "William Shakespeare" },
};
await builder.Add(doc);
await Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
{
textBox.Text += "id: 1" + Environment.NewLine;
textBox.Text += "title: Twelfth-Night" + Environment.NewLine;
textBox.Text += "body: If music be the food of love, play on: Give me excess of it…" + Environment.NewLine;
textBox.Text += "author: William Shakespeare" + Environment.NewLine;
textBox.Text += "Created index." + Environment.NewLine;
});
});
}
protected override async Task <IEnumerable <IDocument> > ExecuteContextAsync(IExecutionContext context)
{
if (context.Inputs.Length == 0)
{
throw new InvalidOperationException($"No input documents available. Cannot build a search index for pipeline {context.PipelineName}");
}
var documents = new Dictionary <string, object>();
Index idx = await Index.Build(async builder =>
{
builder.ReferenceField = "id";
builder
.AddField("title")
.AddField("content")
.AddField("tags")
.AddField("description");
foreach (IDocument doc in context.Inputs)
{
var searchItem = doc[SearchIndex.SearchItemKey] as ILunrIndexItem;
if (searchItem == null)
{
continue;
}
var id = Guid.NewGuid().ToString("D");
var content = StripHtmlAndSpecialChars.Replace(searchItem.Content, " ").Trim();
documents.Add(id, new
{
url = searchItem.GetLink(context, false),
title = searchItem.Title,
body = searchItem.Description
});
var lunrDoc = new global::Lunr.Document
{
{ "id", id },
{ "title", searchItem.Title },
{ "content", content },
{ "tags", searchItem.Tags },
{ "description", searchItem.Description }
};
await builder.Add(lunrDoc);
}
});
return(new[] { (await context.CreateDocumentAsync(destination: "index.js",
$@"var documents={System.Text.Json.JsonSerializer.Serialize(documents)};{Environment.NewLine}var data='{idx.ToJson()}';{Environment.NewLine}")) });
}
