public Task <TopDocs> SearchAsync(LuceneQueryContext context, JObject queryObj) { var queryProp = queryObj["query"] as JObject; if (queryProp == null) { throw new ArgumentException("Query DSL requires a [query] property"); } Query query = CreateQueryFragment(context, queryProp); var sortProperty = queryObj["sort"]; var fromProperty = queryObj["from"]; var sizeProperty = queryObj["size"]; var size = sizeProperty?.Value <int>() ?? 50; var from = fromProperty?.Value <int>() ?? 0; string sortField = null; string sortOrder = null; if (sortProperty != null) { if (sortProperty.Type == JTokenType.String) { sortField = sortProperty.ToString(); } else if (sortProperty.Type == JTokenType.Object) { sortField = ((JProperty)sortProperty.First).Name; sortOrder = ((JProperty)sortProperty.First).Value["order"].ToString(); } } TopDocs docs = context.IndexSearcher.Search( query, size + from, sortField == null ? Sort.RELEVANCE : new Sort(new SortField(sortField, SortField.Type_e.STRING, sortOrder == "desc")) ); if (from > 0) { docs = new TopDocs(docs.TotalHits - from, docs.ScoreDocs.Skip(from).ToArray(), docs.MaxScore); } return(Task.FromResult(docs)); }
public Query CreateQueryFragment(LuceneQueryContext context, JObject queryObj) { var first = queryObj.Properties().First(); Query query = null; foreach (var queryProvider in _queryProviders) { query = queryProvider.CreateQuery(this, context, first.Name, (JObject)first.Value); if (query != null) { break; } } return(query); }
public async Task <object> ExecuteQueryAsync(Query query, IDictionary <string, object> parameters) { var luceneQuery = query as LuceneQuery; object result = null; await _luceneIndexProvider.SearchAsync(luceneQuery.Index, async searcher => { var templateContext = new TemplateContext(); foreach (var parameter in parameters) { templateContext.SetValue(parameter.Key, parameter.Value); } var tokenizedContent = await _liquidTemplateManager.RenderAsync(luceneQuery.Template, templateContext); var parameterizedQuery = JObject.Parse(tokenizedContent); var analyzer = _luceneAnalyzerManager.CreateAnalyzer("standardanalyzer"); var context = new LuceneQueryContext(searcher, LuceneSettings.DefaultVersion, analyzer); var docs = await _queryService.SearchAsync(context, parameterizedQuery); if (luceneQuery.ReturnContentItems) { // Load corresponding content item versions var contentItemVersionIds = docs.ScoreDocs.Select(x => searcher.Doc(x.Doc).Get("Content.ContentItem.ContentItemVersionId")).ToArray(); var contentItems = await _session.Query <ContentItem, ContentItemIndex>(x => x.ContentItemVersionId.IsIn(contentItemVersionIds)).ListAsync(); // Reorder the result to preserve the one from the lucene query var indexed = contentItems.ToDictionary(x => x.ContentItemVersionId, x => x); result = contentItemVersionIds.Select(x => indexed[x]).ToArray(); } else { var results = new List <JObject>(); foreach (var document in docs.ScoreDocs.Select(hit => searcher.Doc(hit.Doc))) { results.Add(new JObject(document.Select(x => new JProperty(x.Name, x.GetStringValue())))); } result = results; } }); return(result); }