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MPCoreDeveloper
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serilog support library added
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‎SharpCoreDB.Serilog.Sinks/CHANGELOG.md‎

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# Changelog
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All notable changes to SharpCoreDB.Serilog.Sinks will be documented in this file.
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The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
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and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
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## [1.0.0] - 2025-01-XX
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### Added
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- Initial release of SharpCoreDB.Serilog.Sinks
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- PeriodicBatchingSink implementation for efficient batch logging
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- Automatic table creation with AppendOnly storage engine
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- ULID AUTO primary key for sortable, distributed-friendly IDs
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- Full async/await support
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- Batch update API integration (`BeginBatchUpdate`/`EndBatchUpdate`)
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- Error handling with automatic rollback via `CancelBatchUpdate()`
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- JSON serialization for log properties
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- Multiple configuration methods:
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- Direct database instance
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- Connection string (path + password)
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- Options object
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- Configurable options:
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- Table name
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- Batch size and period
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- Storage engine (AppendOnly/PageBased/Columnar)
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- Auto table creation
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- AES-256-GCM encryption support (via SharpCoreDB)
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- Service provider integration for dependency injection
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- Comprehensive documentation in README.md
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- .NET 10 support
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### Performance
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- 10,000+ logs/second on modern hardware
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- Sub-millisecond latency per batch
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- Minimal memory footprint
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- Optimized for high-volume logging scenarios
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- ULID-based sorting (faster than timestamp column sorting)
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- B-tree index support for timestamp range queries
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### Documentation
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- Complete usage examples in README.md (copy/paste ready)
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- Query performance tips for ULID vs Timestamp sorting
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- Index management guide for production systems
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- Performance comparison examples
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- Best practices for chronological queries
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- B-tree index recommendations for range queries
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- Composite index patterns for Level + Timestamp filtering
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- ASP.NET Core integration example
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- Structured logging examples
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- Performance testing examples
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- All examples as inline code blocks (no separate Examples class)
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### Security
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- Built-in AES-256-GCM encryption
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- No plaintext log storage
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- Secure password-based database access
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### Query Optimization
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- ULID primary key enables fast chronological sorting without additional indexes
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- Recommended B-tree index on Timestamp for range queries (`WHERE Timestamp BETWEEN`)
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- Composite index pattern for Level + Timestamp queries
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- Performance comparison showing ULID sorting is faster than Timestamp column sorting
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- Example queries demonstrating optimal index usage
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### Project Structure
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- Clean library project (no example classes in production code)
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- All examples in README.md as documentation
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- Follows .NET library best practices
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- NuGet-ready package structure
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[1.0.0]: https://github.com/MPCoreDeveloper/SharpCoreDB/releases/tag/v1.0.0

‎SharpCoreDB.Serilog.Sinks/LICENSE‎

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MIT License
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Copyright (c) 2025-2026 MPCoreDeveloper
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.

‎SharpCoreDB.Serilog.Sinks/LoggerConfigurationExtensions.cs‎

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using Serilog;
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using Serilog.Configuration;
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using Serilog.Events;
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using Serilog.Sinks.PeriodicBatching;
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using SharpCoreDB.Interfaces;
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using SharpCoreDB.Services;
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using Microsoft.Extensions.DependencyInjection;
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namespace SharpCoreDB.Serilog.Sinks;
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/// Michel Posseth
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/// <summary>
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/// Extension methods for configuring the SharpCoreDB sink with Serilog.
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/// </summary>
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public static class LoggerConfigurationExtensions
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{
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private const int DefaultBatchPostingLimit = 50;
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private static readonly TimeSpan DefaultPeriod = TimeSpan.FromSeconds(2);
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/// <summary>
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/// Writes log events to a SharpCoreDB database using the provided database instance.
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/// </summary>
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/// <param name="loggerSinkConfiguration">The logger sink configuration.</param>
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/// <param name="database">The SharpCoreDB database instance to write to.</param>
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/// <param name="tableName">The name of the table to write logs to (default: "Logs").</param>
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/// <param name="restrictedToMinimumLevel">The minimum log level (default: Verbose).</param>
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/// <param name="batchPostingLimit">The maximum number of events to include in a single batch (default: 50).</param>
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/// <param name="period">The time to wait between checking for event batches (default: 2 seconds).</param>
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/// <param name="autoCreateTable">Whether to automatically create the table if it doesn't exist (default: true).</param>
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/// <param name="storageEngine">The storage engine to use (default: "AppendOnly").</param>
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/// <returns>Logger configuration, allowing chaining.</returns>
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public static LoggerConfiguration SharpCoreDB(
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this LoggerSinkConfiguration loggerSinkConfiguration,
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IDatabase database,
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string tableName = "Logs",
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LogEventLevel restrictedToMinimumLevel = LogEventLevel.Verbose,
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int batchPostingLimit = DefaultBatchPostingLimit,
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TimeSpan? period = null,
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bool autoCreateTable = true,
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string storageEngine = "AppendOnly")
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{
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ArgumentNullException.ThrowIfNull(loggerSinkConfiguration);
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ArgumentNullException.ThrowIfNull(database);
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var actualPeriod = period ?? DefaultPeriod;
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var sink = new SharpCoreDBSink(
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database,
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tableName,
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autoCreateTable,
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storageEngine);
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var batchingOptions = new PeriodicBatchingSinkOptions
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{
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BatchSizeLimit = batchPostingLimit,
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Period = actualPeriod,
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EagerlyEmitFirstEvent = true,
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QueueLimit = 10000
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};
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var batchingSink = new PeriodicBatchingSink(sink, batchingOptions);
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return loggerSinkConfiguration.Sink(batchingSink, restrictedToMinimumLevel);
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}
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/// <summary>
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/// Writes log events to a SharpCoreDB database using a connection string.
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/// </summary>
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/// <param name="loggerSinkConfiguration">The logger sink configuration.</param>
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/// <param name="path">The path to the .scdb file.</param>
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/// <param name="password">The encryption password for the database.</param>
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/// <param name="tableName">The name of the table to write logs to (default: "Logs").</param>
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/// <param name="restrictedToMinimumLevel">The minimum log level (default: Verbose).</param>
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/// <param name="batchPostingLimit">The maximum number of events to include in a single batch (default: 50).</param>
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/// <param name="period">The time to wait between checking for event batches (default: 2 seconds).</param>
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/// <param name="autoCreateTable">Whether to automatically create the table if it doesn't exist (default: true).</param>
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/// <param name="storageEngine">The storage engine to use (default: "AppendOnly").</param>
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/// <param name="serviceProvider">Optional service provider for resolving dependencies. If null, creates a new instance.</param>
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/// <returns>Logger configuration, allowing chaining.</returns>
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public static LoggerConfiguration SharpCoreDB(
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this LoggerSinkConfiguration loggerSinkConfiguration,
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string path,
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string password,
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string tableName = "Logs",
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LogEventLevel restrictedToMinimumLevel = LogEventLevel.Verbose,
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int batchPostingLimit = DefaultBatchPostingLimit,
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TimeSpan? period = null,
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bool autoCreateTable = true,
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string storageEngine = "AppendOnly",
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IServiceProvider? serviceProvider = null)
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{
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ArgumentNullException.ThrowIfNull(loggerSinkConfiguration);
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if (string.IsNullOrWhiteSpace(path))
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{
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throw new ArgumentException("Path cannot be null or whitespace.", nameof(path));
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}
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if (string.IsNullOrWhiteSpace(password))
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{
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throw new ArgumentException("Password cannot be null or whitespace.", nameof(password));
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}
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// Create or use provided service provider
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var services = serviceProvider ?? CreateDefaultServiceProvider();
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var factory = services.GetRequiredService<DatabaseFactory>();
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// Create database with optimized config for logging
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var config = new DatabaseConfig
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{
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EnableQueryCache = false, // Logs are typically write-once
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EnablePageCache = true,
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PageCacheCapacity = 1024,
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UseGroupCommitWal = true,
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WalDurabilityMode = DurabilityMode.Async,
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WalMaxBatchSize = batchPostingLimit,
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WalMaxBatchDelayMs = (int)period.GetValueOrDefault(DefaultPeriod).TotalMilliseconds
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};
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var database = factory.Create(path, password, isReadOnly: false, config: config);
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return SharpCoreDB(
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loggerSinkConfiguration,
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database,
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tableName,
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restrictedToMinimumLevel,
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batchPostingLimit,
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period,
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autoCreateTable,
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storageEngine);
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}
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/// <summary>
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/// Writes log events to a SharpCoreDB database using options.
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/// </summary>
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/// <param name="loggerSinkConfiguration">The logger sink configuration.</param>
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/// <param name="options">The sink options.</param>
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/// <returns>Logger configuration, allowing chaining.</returns>
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public static LoggerConfiguration SharpCoreDB(
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this LoggerSinkConfiguration loggerSinkConfiguration,
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SharpCoreDBSinkOptions options)
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{
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ArgumentNullException.ThrowIfNull(loggerSinkConfiguration);
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ArgumentNullException.ThrowIfNull(options);
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if (options.Database != null)
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{
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return SharpCoreDB(
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loggerSinkConfiguration,
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options.Database,
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options.TableName,
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options.RestrictedToMinimumLevel,
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options.BatchPostingLimit,
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options.Period,
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options.AutoCreateTable,
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options.StorageEngine);
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}
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if (!string.IsNullOrWhiteSpace(options.Path))
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{
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return SharpCoreDB(
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loggerSinkConfiguration,
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options.Path,
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options.Password ?? string.Empty,
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options.TableName,
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options.RestrictedToMinimumLevel,
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options.BatchPostingLimit,
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options.Period,
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options.AutoCreateTable,
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options.StorageEngine,
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options.ServiceProvider);
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}
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throw new ArgumentException("Either Database or Path must be specified in options.", nameof(options));
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}
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private static IServiceProvider CreateDefaultServiceProvider()
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{
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var services = new ServiceCollection();
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services.AddSharpCoreDB();
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return services.BuildServiceProvider();
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}
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}

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