Zentient.Abstractions 3.0.2

Zentient.Abstractions

⚠️ CRITICAL - 3.0.0 BREAKING CHANGES
This is a complete rewrite with massive breaking changes from 2.x versions.
📚 REQUIRED READING: Migration Guide before upgrading.
New Projects: Continue reading below for the modern 3.0 architecture.

Zentient.Abstractions 3.0 is the foundational library for the Zentient Framework, providing comprehensive abstractions that enable the four-pillar architecture for building robust, extensible, and protocol-agnostic applications. This major release introduces a unified framework core with enhanced developer experience and enterprise-grade capabilities.

🏗️ Four-Pillar Architecture

Zentient Framework 3.0 is built upon four interconnected pillars that ensure consistency, discoverability, and robust error handling:

1. 🧩 Definition-Centric Core (The "What")

Everything in the framework is self-describing through the ITypeDefinition interface and composed IHas... contracts. This metadata layer enables runtime discovery, categorization, and component wiring.

2. ✉️ Universal Envelope (The "How")

All operations return standardized IEnvelope<TCode, TError> results, providing consistent success/failure communication with rich error information, codes, and metadata.

3. 🏗️ Fluent DI & Application Builder (The "Wiring")

The powerful IContainerBuilder serves as the composition root, offering fluent APIs for dependency injection, module management, assembly scanning, and application validation.

4. 🩺 Built-in Observability (The "Health")

First-class diagnostic and validation systems through IDiagnosticCheck and IValidator interfaces, with results flowing through the universal envelope pattern.

🚀 Getting Started

Install Zentient.Abstractions 3.0 into your .NET project:

dotnet add package Zentient.Abstractions

Supported Frameworks: .NET 6.0, .NET 7.0, .NET 8.0, and .NET 9.0

Quick Start Example

using Zentient.Abstractions;
using Zentient.Abstractions.Builders;

// Build the complete Zentient application core
var zentient = await new ContainerBuilder()
    .RegisterFromAssemblies(Assembly.GetExecutingAssembly())
    .AddModule<MyApplicationModule>()
    .ConfigureValidationOnRegistration(true)
    .BuildZentientAsync();

// Access all framework systems through unified interface
var orderService = zentient.Services.Resolve<IOrderService>();
var validator = zentient.Validators.GetValidator<CreateOrderRequest, 
    OrderValidationCodeDefinition, 
    OrderValidationErrorDefinition>();
var diagnostics = zentient.GetDiagnosticRunner<
    SystemHealthCodeDefinition, 
    SystemHealthErrorDefinition>();

✨ Key Features & Interfaces

Core Framework Interface

• IZentient: Unified entry point providing access to all framework systems
• IContainerBuilder: Comprehensive DI container with advanced features
• Enhanced DX: Global using directives and convenience namespaces

Definition-Centric Types

• ITypeDefinition: Rich metadata for all framework components
• IIdentifiable: Unique identification system
• IHas... Interfaces: Composable capability contracts (Name, Version, Description, etc.)

Universal Envelopes

• IEnvelope<TCodeDefinition, TErrorDefinition>: Standardized operation results
• IHeaderedEnvelope: Protocol-agnostic header support
• IStreamableEnvelope: Support for streaming scenarios

Observability & Validation

• IValidator<TIn, TCodeDefinition, TErrorDefinition>: Type-safe validation
• IDiagnosticCheck<TSubject, TCodeDefinition, TErrorDefinition>: Health monitoring
• IDiagnosticRunner: Coordinated diagnostic execution

Configuration & Options

• IConfiguration: Flexible configuration management
• ITypedConfiguration<TOptionsDefinition, TValue>: Strongly-typed options
• IConfigurationBinder: Dynamic configuration binding

Supporting Types

• ICode<TCodeDefinition>: Structured, protocol-agnostic codes
• IErrorInfo<TErrorDefinition>: Rich error information
• IContext<TContextDefinition>: Hierarchical execution context
• IMetadata: Extensible key-value metadata system

🎯 Developer Experience Enhancements

Simplified Namespace Usage

// Single import for most scenarios
using Zentient.Abstractions;

// Specialized imports only when needed
using Zentient.Abstractions.Builders;    // For advanced building
using Zentient.Abstractions.Health;      // For health & validation

Enhanced Debugging

• Source Link Integration: Step-through debugging into framework source
• Rich Documentation: Comprehensive IntelliSense support
• Symbol Packages: Enhanced debugging experience

Enterprise Features

• Assembly Scanning: Automatic service discovery
• Module System: Organized service registration
• Conditional Registration: Environment-aware configuration
• Advanced Patterns: Decorators, interceptors, and policies

🏛️ Architectural Benefits

Protocol Agnostic

Design core logic independently of transport protocols (HTTP, gRPC, Messaging)

Type Safety

Strongly-typed definitions and generic constraints ensure compile-time correctness

Testability

Decoupled interfaces and unified result patterns promote comprehensive testing

Consistency

Universal envelope pattern and definition-centric design ensure predictable behavior

Extensibility

Composable interfaces and metadata system support diverse application requirements

📊 What's New in 3.0.0

Major Architectural Improvements

• ✨ IZentient Interface: Unified framework entry point
• 🏗️ Enhanced Container Builder: Advanced DI capabilities with validation
• 🎯 Four-Pillar Architecture: Complete framework foundation
• 📦 Improved Package Metadata: Enhanced discoverability and debugging

Developer Experience Enhancements

• 🚀 Global Using Directives: Reduced namespace imports
• 📝 Rich Documentation: Comprehensive XML documentation
• 🔗 Source Link Support: Enhanced debugging experience
• 🎨 Convenience Namespaces: Streamlined access patterns

Breaking Changes

• Moved from 2.x envelope patterns to comprehensive 3.0 architecture
• Enhanced type definitions with richer metadata support
• Unified service resolution through IZentient interface

See CHANGELOG.md for complete details.

💡 Example Use Cases

Building Applications

var app = await new ContainerBuilder()
    .RegisterFromCallingAssembly()
    .AddModule<CoreModule>()
    .AddModule<DataModule>()
    .ConfigureValidationOnRegistration(true)
    .BuildZentientAsync();

Validation

var validator = zentient.Validators.GetValidator<CustomerDto, 
    CustomerValidationCodeDefinition, 
    CustomerValidationErrorDefinition>();

var result = await validator.Validate(customerData);
if (!result.IsSuccess)
{
    foreach (var error in result.Errors)
        Console.WriteLine($"Validation error: {error.Message}");
}

Health Monitoring

var diagnostics = zentient.GetDiagnosticRunner<
    ServiceHealthCodeDefinition,
    ServiceHealthErrorDefinition>();

var healthReport = await zentient.PerformHealthCheckAsync<
    SystemHealthCodeDefinition,
    SystemHealthErrorDefinition>();

```csharp
public interface IEndpointCode
{
    string Name { get; }
    int? Numeric { get; }
    string? Protocol { get; }
}
```

• IMetadata: A flexible interface for attaching structured contextual metadata as key-value pairs to various entities (e.g., IContext, IEnvelope). It supports type-safe retrieval of tags.

  public interface IMetadata
  {
      IReadOnlyCollection<string> Keys { get; }
      IReadOnlyCollection<object> Values { get; }
      bool TryGetTag<TValue>(string key, out TValue? value);
      IMetadata WithTag<TValue>(string key, TValue value);
  }
  

• IPolicy<T>: Defines a contract for applying cross-cutting concerns or retry logic to operations that produce a result of type T.

  public interface IPolicy<T>
  {
      Task<T> Execute(Func<CancellationToken, Task<T>> operation, CancellationToken cancellationToken = default);
  }
  

• IFormatter<TIn, TOut>: A generic interface for transforming one type of value into another, useful for data serialization, deserialization, or mapping.

  public interface IFormatter<in TIn, TOut>
  {
      Task<TOut> Format(TIn input, CancellationToken cancellationToken = default);
  }
  

• Unit: A lightweight, singleton value type used to represent the absence of a specific value in generic contexts, similar to void in C# or null but as a concrete, serializable type. It's particularly useful in functional programming patterns where a generic type parameter is required but no meaningful data needs to be conveyed.

  public readonly struct Unit : IEquatable<Unit>, IComparable, IComparable<Unit>
  {
      public static Unit Value { get; } // Singleton instance
      // ... operators and methods for equality, comparison, serialization
  }
  

💡 Why Use Zentient.Abstractions?

• Protocol Agnostic: Design your core logic independently of specific transport protocols (HTTP, gRPC, Messaging).
• Structured Outcomes: Standardize how operations report success, failure, and associated information, moving beyond exceptions for expected business flows. This is fundamental to how libraries like Zentient.Results operate.
• Extensibility: Provides interfaces that can be easily implemented and extended to fit diverse application requirements.
• Testability: Decoupled interfaces promote easier unit testing of business logic.
• Consistency: Enforces a consistent approach to common application concerns across your codebase, serving as the common language for all Zentient Framework components.

🤝 Contributing

We welcome contributions! Please visit our GitHub Repository for the latest source code, issues, and contribution guidelines.

📄 License

Zentient.Abstractions is licensed under the MIT License. See the LICENSE file for details.

Zentient Framework 3.0 - Building the future of .NET applications with consistency, discoverability, and exceptional developer experience.