Improve bit besql (#9799)#9800
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Important Review skippedAuto incremental reviews are disabled on this repository. Please check the settings in the CodeRabbit UI or the You can disable this status message by setting the WalkthroughThe update introduces new error handling for synchronous operations by adding methods that throw exceptions in a database context interceptor and providing a dedicated exception class. In addition, pause/resume synchronization functionality has been implemented across storage classes and an interface, with a new list to track paused files and methods to control persistence operations. The Weather component has been updated with extra buttons and methods to invoke the new pause/resume and error-triggering functionalities while modifying forecast data. Changes
Sequence Diagram(s)sequenceDiagram
participant Client as Application
participant Interceptor as DbContextInterceptor
Client->>Interceptor: Call sync method (ReaderExecuted/NonQueryExecuted/ScalarExecuted)
Interceptor-->>Client: Throw BesqlNonAsyncOperationException
sequenceDiagram
participant User as End User
participant UI as Weather Component
participant Storage as BesqlStorage Service
User->>UI: Click "Pause / resume sync" button
UI->>Storage: Invoke PauseSync()
UI->>UI: Call AddWeatherForecast (with delay)
UI->>Storage: Invoke ResumeSync()
Storage-->>UI: Acknowledge resumed sync
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Actionable comments posted: 1
🧹 Nitpick comments (9)
src/Besql/Bit.Besql/BesqlNonAsyncOperationException.cs (1)
3-5: Consider inheriting fromExceptioninstead ofApplicationException.Microsoft recommends against using
ApplicationExceptionas a base class. It was originally intended as a way to distinguish between developer-created exceptions and runtime exceptions, but this pattern was not widely adopted and is now considered unnecessary.-public class BesqlNonAsyncOperationException() : ApplicationException("Bit Besql only support async operations.") +public class BesqlNonAsyncOperationException() : Exception("Bit Besql only support async operations.")src/Besql/Bit.Besql/IBesqlStorage.cs (2)
9-11: Consider renaming methods for clarity and consistency.The "Sync" suffix typically indicates a synchronous operation, but
ResumeSyncis asynchronous. Consider renaming to better reflect the operation type:-void PauseSync(); +void PausePersistence(); -Task ResumeSync(); +Task ResumePersistenceAsync();
9-11: Add XML documentation for new methods.Please add XML documentation to describe the purpose and behavior of these methods.
+/// <summary> +/// Pauses the persistence operations. All subsequent persist operations will be queued. +/// </summary> void PauseSync(); +/// <summary> +/// Resumes persistence operations and processes any queued operations. +/// </summary> +/// <returns>A task that represents the asynchronous operation.</returns> Task ResumeSync();src/Besql/Bit.Besql/NoopBesqlStorage.cs (1)
15-22: Add XML documentation for new methods.Please add XML documentation to maintain consistency with interface documentation.
+/// <inheritdoc /> public void PauseSync() { } +/// <inheritdoc /> public Task ResumeSync() { return Task.CompletedTask; }src/Besql/Bit.Besql/BrowserCacheBesqlStorage.cs (2)
7-7: Make field readonly.The
pausedFilesListfield is only set inPauseSyncand cleared inResumeSync. Consider making it readonly to prevent accidental modifications.-HashSet<string>? pausedFilesList; +private readonly HashSet<string>? pausedFilesList;
25-42: Add XML documentation for new methods.Please add XML documentation to maintain consistency with interface documentation.
+/// <inheritdoc /> public void PauseSync() { pausedFilesList = []; } +/// <inheritdoc /> public async Task ResumeSync() { if (pausedFilesList is null) throw new InvalidOperationException("Besql storage is not paused.");src/Besql/Bit.Besql/BesqlDbContextInterceptor.cs (1)
10-10: LGTM! Consider making the keywords array readonly.The keywords array has been correctly moved to class level for better reusability.
- private string[] keywords = ["INSERT", "UPDATE", "DELETE", "CREATE", "ALTER", "DROP"]; + private readonly string[] keywords = ["INSERT", "UPDATE", "DELETE", "CREATE", "ALTER", "DROP"];src/Besql/Demo/Bit.Besql.Demo.Client/Pages/Weather.razor (2)
38-48: Consider extracting the large string literal to a constant.The large string literal in the weather forecast summary makes the code harder to read and maintain.
+ private const string LongSummary = "A B C D E F G H I J K L M N O P Q R S T U V W X Y Z..." // truncated for brevity private async Task AddWeatherForecast() { await using var dbContext = await DbContextFactory.CreateDbContextAsync(); await dbContext.WeatherForecasts.AddAsync(new() { Date = new DateTimeOffset(2024, 1, 4, 10, 10, 10, TimeSpan.Zero), - Summary = "A B C D E F G H I J K L M N O P Q R S T U V W X Y Z...", + Summary = LongSummary, TemperatureC = Random.Shared.Next(1, 30) });
83-87: Consider adding a warning comment about sync operation.The method demonstrates a sync operation error, but it would be helpful to add a comment explaining why this is problematic.
private void NonAsyncOperationError() { + // This method demonstrates why sync operations are not supported in Blazor WebAssembly. + // It will throw BesqlNonAsyncOperationException as sync operations can block the UI thread. using var dbContext = DbContextFactory.CreateDbContext(); forecastsCount = dbContext.WeatherForecasts.Count(); // This wouldn't work in blazor wasm / besql. }
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📒 Files selected for processing (6)
src/Besql/Bit.Besql/BesqlDbContextInterceptor.cs(3 hunks)src/Besql/Bit.Besql/BesqlNonAsyncOperationException.cs(1 hunks)src/Besql/Bit.Besql/BrowserCacheBesqlStorage.cs(1 hunks)src/Besql/Bit.Besql/IBesqlStorage.cs(1 hunks)src/Besql/Bit.Besql/NoopBesqlStorage.cs(1 hunks)src/Besql/Demo/Bit.Besql.Demo.Client/Pages/Weather.razor(4 hunks)
⏰ Context from checks skipped due to timeout of 90000ms (1)
- GitHub Check: build and test
🔇 Additional comments (4)
src/Besql/Bit.Besql/BrowserCacheBesqlStorage.cs (1)
27-27: Verify C# version compatibility.The collection expression syntax
[]requires C# 12. Ensure your project targets a compatible version or use the traditional syntax.-pausedFilesList = []; +pausedFilesList = new HashSet<string>();src/Besql/Bit.Besql/BesqlDbContextInterceptor.cs (1)
12-18: LGTM! Consistent error handling for synchronous operations.The implementation correctly enforces async-only operations by throwing BesqlNonAsyncOperationException for all synchronous methods.
Let's verify that all sync methods are properly intercepted:
Also applies to: 34-40, 56-62
✅ Verification successful
🏁 Script executed:
#!/bin/bash # Description: Check for any sync method calls that might bypass the interceptor # Search for direct sync method calls in the codebase rg -A 5 '\.(Reader|NonQuery|Scalar)Executed\(' --type csLength of output: 58
We need additional verification to confirm that all synchronous methods (ReaderExecuted, NonQueryExecuted, and ScalarExecuted) correctly throw the exception. Let's run a script to display the relevant parts of the implementation in the file. This script will check each method definition for the expected exception throw.
🏁 Script executed:
#!/bin/bash # Verify that all synchronous execution methods in BesqlDbContextInterceptor throw BesqlNonAsyncOperationException. echo "Checking for ReaderExecuted method:" rg -n "public DbDataReader ReaderExecuted.*throw new BesqlNonAsyncOperationException" --type cs src/Besql/Bit.Besql/BesqlDbContextInterceptor.cs echo "Checking for NonQueryExecuted method:" rg -n "public int NonQueryExecuted.*throw new BesqlNonAsyncOperationException" --type cs src/Besql/Bit.Besql/BesqlDbContextInterceptor.cs echo "Checking for ScalarExecuted method:" rg -n "public object ScalarExecuted.*throw new BesqlNonAsyncOperationException" --type cs src/Besql/Bit.Besql/BesqlDbContextInterceptor.csLength of output: 674
🏁 Script executed:
#!/bin/bash # Verify that each synchronous method in BesqlDbContextInterceptor correctly throws BesqlNonAsyncOperationException. echo "Searching for BesqlNonAsyncOperationException usage in the file:" rg -n "BesqlNonAsyncOperationException" src/Besql/Bit.Besql/BesqlDbContextInterceptor.cs echo -e "\nDisplaying ReaderExecuted segment (lines 12-18):" sed -n '12,18p' src/Besql/Bit.Besql/BesqlDbContextInterceptor.cs echo -e "\nDisplaying NonQueryExecuted segment (lines 34-40):" sed -n '34,40p' src/Besql/Bit.Besql/BesqlDbContextInterceptor.cs echo -e "\nDisplaying ScalarExecuted segment (lines 56-62):" sed -n '56,62p' src/Besql/Bit.Besql/BesqlDbContextInterceptor.csLength of output: 1522
Synchronous methods correctly enforce async-only operations.
- The
ReaderExecutedmethod (lines 12–18) throwsBesqlNonAsyncOperationException.- The
NonQueryExecutedmethod (lines 34–40) throwsBesqlNonAsyncOperationException.- The
ScalarExecutedmethod (lines 56–62) throwsBesqlNonAsyncOperationException.src/Besql/Demo/Bit.Besql.Demo.Client/Pages/Weather.razor (2)
24-25: LGTM! Clear button labels for testing functionality.The buttons are appropriately labeled to indicate their purpose.
65-81: LGTM! Proper error handling in pause/resume sync.The implementation correctly uses try-finally to ensure sync is always resumed, even if an error occurs.
2 participants
closes #9799
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