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.Net: feat: Modernize GoogleTextSearch connector with ITextSearch<TRecord> interface (microsoft#10456) #13190

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.Net: feat: Modernize GoogleTextSearch connector with ITextSearch<TRecord> interface (microsoft#10456) #13190

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2370eba
feat: Modernize GoogleTextSearch with ITextSearch<GoogleWebPage> inte…
alzarei Sep 28, 2025
17f88bf
fix: resolve method ambiguity in GoogleTextSearchTests and add generi…
alzarei Sep 28, 2025
2ed50ff
feat: enhance GoogleTextSearch LINQ filtering with Contains support
alzarei Oct 1, 2025
b68ff5d
feat(plugins): enhance GoogleTextSearch with advanced LINQ filtering
alzarei Oct 3, 2025
7576d94
feat: Add comprehensive LINQ filtering examples and fix method ambiguity
alzarei Oct 3, 2025
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115 changes: 111 additions & 4 deletions dotnet/samples/Concepts/Search/Google_TextSearch.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -26,7 +26,7 @@ public async Task UsingGoogleTextSearchAsync()
var query = "What is the Semantic Kernel?";

// Search and return results as string items
KernelSearchResults<string> stringResults = await textSearch.SearchAsync(query, new() { Top = 4, Skip = 0 });
KernelSearchResults<string> stringResults = await textSearch.SearchAsync(query, new TextSearchOptions { Top = 4, Skip = 0 });
Console.WriteLine("——— String Results ———\n");
await foreach (string result in stringResults.Results)
{
Expand All @@ -35,7 +35,7 @@ public async Task UsingGoogleTextSearchAsync()
}

// Search and return results as TextSearchResult items
KernelSearchResults<TextSearchResult> textResults = await textSearch.GetTextSearchResultsAsync(query, new() { Top = 4, Skip = 4 });
KernelSearchResults<TextSearchResult> textResults = await textSearch.GetTextSearchResultsAsync(query, new TextSearchOptions { Top = 4, Skip = 4 });
Console.WriteLine("\n——— Text Search Results ———\n");
await foreach (TextSearchResult result in textResults.Results)
{
Expand All @@ -46,7 +46,7 @@ public async Task UsingGoogleTextSearchAsync()
}

// Search and return results as Google.Apis.CustomSearchAPI.v1.Data.Result items
KernelSearchResults<object> fullResults = await textSearch.GetSearchResultsAsync(query, new() { Top = 4, Skip = 8 });
KernelSearchResults<object> fullResults = await textSearch.GetSearchResultsAsync(query, new TextSearchOptions { Top = 4, Skip = 8 });
Console.WriteLine("\n——— Google Web Page Results ———\n");
await foreach (Google.Apis.CustomSearchAPI.v1.Data.Result result in fullResults.Results)
{
Expand Down Expand Up @@ -74,7 +74,7 @@ public async Task UsingGoogleTextSearchWithACustomMapperAsync()
var query = "What is the Semantic Kernel?";

// Search with TextSearchResult textResult type
KernelSearchResults<string> stringResults = await textSearch.SearchAsync(query, new() { Top = 2, Skip = 0 });
KernelSearchResults<string> stringResults = await textSearch.SearchAsync(query, new TextSearchOptions { Top = 2, Skip = 0 });
Console.WriteLine("--- Serialized JSON Results ---");
await foreach (string result in stringResults.Results)
{
Expand Down Expand Up @@ -107,6 +107,113 @@ public async Task UsingGoogleTextSearchWithASiteSearchFilterAsync()
}
}

/// <summary>
/// Show how to use enhanced LINQ filtering with GoogleTextSearch including Contains, NOT, FileType, and compound AND expressions.
/// </summary>
[Fact]
public async Task UsingGoogleTextSearchWithEnhancedLinqFilteringAsync()
{
// Create an ITextSearch<GoogleWebPage> instance using Google search
var textSearch = new GoogleTextSearch(
initializer: new() { ApiKey = TestConfiguration.Google.ApiKey, HttpClientFactory = new CustomHttpClientFactory(this.Output) },
searchEngineId: TestConfiguration.Google.SearchEngineId);

var query = "Semantic Kernel AI";

// Example 1: Simple equality filtering
Console.WriteLine("——— Example 1: Equality Filter (DisplayLink) ———\n");
var equalityOptions = new TextSearchOptions<GoogleWebPage>
{
Top = 2,
Skip = 0,
Filter = page => page.DisplayLink == "microsoft.com"
};
var equalityResults = await textSearch.SearchAsync(query, equalityOptions);
await foreach (string result in equalityResults.Results)
{
Console.WriteLine(result);
Console.WriteLine(new string('—', HorizontalRuleLength));
}

// Example 2: Contains filtering
Console.WriteLine("\n——— Example 2: Contains Filter (Title) ———\n");
var containsOptions = new TextSearchOptions<GoogleWebPage>
{
Top = 2,
Skip = 0,
Filter = page => page.Title != null && page.Title.Contains("AI")
};
var containsResults = await textSearch.SearchAsync(query, containsOptions);
await foreach (string result in containsResults.Results)
{
Console.WriteLine(result);
Console.WriteLine(new string('—', HorizontalRuleLength));
}

// Example 3: NOT Contains filtering (exclusion)
Console.WriteLine("\n——— Example 3: NOT Contains Filter (Exclude 'deprecated') ———\n");
var notContainsOptions = new TextSearchOptions<GoogleWebPage>
{
Top = 2,
Skip = 0,
Filter = page => page.Title != null && !page.Title.Contains("deprecated")
};
var notContainsResults = await textSearch.SearchAsync(query, notContainsOptions);
await foreach (string result in notContainsResults.Results)
{
Console.WriteLine(result);
Console.WriteLine(new string('—', HorizontalRuleLength));
}

// Example 4: FileFormat filtering
Console.WriteLine("\n——— Example 4: FileFormat Filter (PDF files) ———\n");
var fileFormatOptions = new TextSearchOptions<GoogleWebPage>
{
Top = 2,
Skip = 0,
Filter = page => page.FileFormat == "pdf"
};
var fileFormatResults = await textSearch.SearchAsync(query, fileFormatOptions);
await foreach (string result in fileFormatResults.Results)
{
Console.WriteLine(result);
Console.WriteLine(new string('—', HorizontalRuleLength));
}

// Example 5: Compound AND filtering (multiple conditions)
Console.WriteLine("\n——— Example 5: Compound AND Filter (Title + Site) ———\n");
var compoundOptions = new TextSearchOptions<GoogleWebPage>
{
Top = 2,
Skip = 0,
Filter = page => page.Title != null && page.Title.Contains("Semantic") &&
page.DisplayLink != null && page.DisplayLink.Contains("microsoft")
};
var compoundResults = await textSearch.SearchAsync(query, compoundOptions);
await foreach (string result in compoundResults.Results)
{
Console.WriteLine(result);
Console.WriteLine(new string('—', HorizontalRuleLength));
}

// Example 6: Complex compound filtering (equality + contains + exclusion)
Console.WriteLine("\n——— Example 6: Complex Compound Filter (FileFormat + Contains + NOT Contains) ———\n");
var complexOptions = new TextSearchOptions<GoogleWebPage>
{
Top = 2,
Skip = 0,
Filter = page => page.FileFormat == "pdf" &&
page.Title != null && page.Title.Contains("AI") &&
page.Snippet != null && !page.Snippet.Contains("deprecated")
};
var complexResults = await textSearch.SearchAsync(query, complexOptions);
await foreach (string result in complexResults.Results)
{
Console.WriteLine(result);
Console.WriteLine(new string('—', HorizontalRuleLength));
}
}

#region private
private const int HorizontalRuleLength = 80;

Expand Down
4 changes: 2 additions & 2 deletions dotnet/samples/GettingStartedWithTextSearch/Step1_Web_Search.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -23,7 +23,7 @@ public async Task BingSearchAsync()
var query = "What is the Semantic Kernel?";

// Search and return results
KernelSearchResults<string> searchResults = await textSearch.SearchAsync(query, new() { Top = 4 });
KernelSearchResults<string> searchResults = await textSearch.SearchAsync(query, new TextSearchOptions { Top = 4 });
await foreach (string result in searchResults.Results)
{
Console.WriteLine(result);
Expand All @@ -44,7 +44,7 @@ public async Task GoogleSearchAsync()
var query = "What is the Semantic Kernel?";

// Search and return results
KernelSearchResults<string> searchResults = await textSearch.SearchAsync(query, new() { Top = 4 });
KernelSearchResults<string> searchResults = await textSearch.SearchAsync(query, new TextSearchOptions { Top = 4 });
await foreach (string result in searchResults.Results)
{
Console.WriteLine(result);
Expand Down
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