public async Task <IReadOnlyCollection <TokenInfo> > AnalyzeAsync(string searchText, string analyzerName)
{
var analyzeRequest = new AnalyzeRequest()
{
Text = searchText,
Analyzer = analyzerName,
};
IList <TokenInfo> tokens = null;
using (var benchmarkScope = new BenchmarkScope(_logger, "analyzing text"))
{
var searchServiceClient = _searchClientProvider.CreateSearchServiceClient();
tokens = (await searchServiceClient.Indexes.AnalyzeAsync(_configuration["SearchIndexName"], analyzeRequest)).Tokens;
}
return(new List <TokenInfo>(tokens));
}
public async Task <IReadOnlyCollection <MatchedTerm> > SearchAsync(string searchText)
{
if (string.IsNullOrEmpty(searchText))
{
return(Array.Empty <MatchedTerm>());
}
var analyzeRequest = new AnalyzeRequest()
{
Text = searchText,
Analyzer = Document.DefaultAnalyzerName,
};
IList <TokenInfo> searchTokens = null;
using (var benchmarkScope = new BenchmarkScope(_logger, "analyzing text"))
{
var searchServiceClient = _searchClientProvider.CreateSearchServiceClient();
searchTokens = (await searchServiceClient.Indexes.AnalyzeAsync(_configuration["SearchIndexName"], analyzeRequest)).Tokens;
}
var searchParameters = new SearchParameters()
{
SearchMode = SearchMode.Any,
SearchFields = Document.SearchableFields,
ScoringProfile = Document.PrimaryFieldFavoredScoringProfile,
HighlightFields = Document.SearchableFields,
HighlightPreTag = "<em>",
HighlightPostTag = "</em>",
Top = 500,
};
var searchResults = new List <SearchResult <AzureSearchDocument> >();
using (var benchmarkScope = new BenchmarkScope(_logger, "searching text"))
{
var searchIndexClient = _searchClientProvider.CreateSearchIndexClient();
var currentResult = await searchIndexClient.Documents.SearchAsync(searchText, searchParameters);
searchResults.AddRange(currentResult.Results);
while (currentResult.ContinuationToken != null)
{
currentResult = await searchIndexClient.Documents.ContinueSearchAsync(currentResult.ContinuationToken);
searchResults.AddRange(currentResult.Results);
}
}
var matchedTerms = new HashSet <MatchedTerm>();
var searchResultHandlerContext = new SearchResultHandlerContext(searchText, searchTokens.ToList(), searchParameters, searchResults, matchedTerms);
foreach (var searchResultHandler in _searchResultHandlers)
{
await searchResultHandler.ProcessAsync(searchResultHandlerContext);
}
//
// Merge term bindings
//
var consolidatedMatchedTerms = new List <MatchedTerm>();
foreach (var matchedTerm in matchedTerms)
{
int index = consolidatedMatchedTerms.FindIndex(p => StringComparer.OrdinalIgnoreCase.Equals(p.Text, matchedTerm.Text) && p.StartIndex == matchedTerm.StartIndex && p.Length == matchedTerm.Length);
if (index < 0)
{
consolidatedMatchedTerms.Add(new MatchedTerm()
{
Text = matchedTerm.Text,
StartIndex = matchedTerm.StartIndex,
Length = matchedTerm.Length,
TermBindings = new HashSet <TermBinding>(),
});
index = consolidatedMatchedTerms.Count - 1;
}
consolidatedMatchedTerms[index].TermBindings.UnionWith(matchedTerm.TermBindings);
}
return(consolidatedMatchedTerms);
}
